eng.libretexts.org Open in urlscan Pro
2600:9000:2359:2800:11:2451:2fc0:93a1  Public Scan

Submitted URL: http://eng.libretexts.org/
Effective URL: https://eng.libretexts.org/
Submission: On March 19 via api from US — Scanned from DE

Summary

This website contacted 23 IPs in 3 countries across 18 domains to perform 145 HTTP transactions. The main IP is 2600:9000:2359:2800:11:2451:2fc0:93a1, located in United States and belongs to AMAZON-02, US. The main domain is eng.libretexts.org.
TLS certificate: Issued by Amazon RSA 2048 M01 on June 13th 2023. Valid for: a year.
This is the only time eng.libretexts.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 2600:9000:235... 16509 (AMAZON-02)
3 12 2600:9000:235... 16509 (AMAZON-02)
16 143.204.215.2 16509 (AMAZON-02)
41 2606:4700:303... 13335 (CLOUDFLAR...)
4 6 2606:4700::68... 13335 (CLOUDFLAR...)
23 2606:4700::68... 13335 (CLOUDFLAR...)
2 2606:4700::68... 13335 (CLOUDFLAR...)
1 15 2606:4700:10:... 13335 (CLOUDFLAR...)
4 2a00:1450:400... 15169 (GOOGLE)
4 2606:4700:e6:... 13335 (CLOUDFLAR...)
1 2606:4700:440... 13335 (CLOUDFLAR...)
1 2606:4700::68... 13335 (CLOUDFLAR...)
2 2a00:1450:400... 15169 (GOOGLE)
2 44.208.181.185 14618 (AMAZON-AES)
3 2a00:1450:400... 15169 (GOOGLE)
4 2a00:1450:400... 15169 (GOOGLE)
3 143.204.215.73 16509 (AMAZON-02)
2 2a00:1450:400... 15169 (GOOGLE)
2 2001:4860:480... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
4 2606:4700:10:... 13335 (CLOUDFLAR...)
1 35.186.247.156 15169 (GOOGLE)
2 2606:4700:10:... 13335 (CLOUDFLAR...)
2 2606:4700::68... 13335 (CLOUDFLAR...)
145 23
Apex Domain
Subdomains
Transfer
41 libretexts.net
cdn.libretexts.net — Cisco Umbrella Rank: 140945
789 KB
23 cloudflare.com
cdnjs.cloudflare.com — Cisco Umbrella Rank: 387
647 KB
19 hypothes.is
hypothes.is — Cisco Umbrella Rank: 53931
cdn.hypothes.is — Cisco Umbrella Rank: 88578
322 KB
19 mtstatic.com
a.mtstatic.com — Cisco Umbrella Rank: 73355
files.mtstatic.com — Cisco Umbrella Rank: 92699
1 MB
15 libretexts.org
eng.libretexts.org
matomo-test-ecs.libretexts.org — Cisco Umbrella Rank: 158483
62 KB
6 unpkg.com
unpkg.com — Cisco Umbrella Rank: 1234
17 KB
5 fontawesome.com
use.fontawesome.com — Cisco Umbrella Rank: 1860
pro.fontawesome.com — Cisco Umbrella Rank: 12599
117 KB
4 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 101
region1.google-analytics.com — Cisco Umbrella Rank: 1728
21 KB
4 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 110
31 KB
3 cloudflareinsights.com
static.cloudflareinsights.com — Cisco Umbrella Rank: 1408
cloudflareinsights.com — Cisco Umbrella Rank: 1392
7 KB
2 donorbox.org
donorbox.org — Cisco Umbrella Rank: 76391
7 KB
2 google.de
www.google.de — Cisco Umbrella Rank: 4233
515 B
2 google.com
region1.analytics.google.com — Cisco Umbrella Rank: 2066
www.google.com — Cisco Umbrella Rank: 5
664 B
2 doubleclick.net
stats.g.doubleclick.net — Cisco Umbrella Rank: 195
398 B
2 gstatic.com
fonts.gstatic.com
274 KB
2 googletagmanager.com
www.googletagmanager.com — Cisco Umbrella Rank: 114
176 KB
2 jsdelivr.net
cdn.jsdelivr.net — Cisco Umbrella Rank: 437
3 KB
1 sentry.io
sentry.io — Cisco Umbrella Rank: 194
324 B
145 18
Domain Requested by
41 cdn.libretexts.net eng.libretexts.org
cdn.libretexts.net
23 cdnjs.cloudflare.com eng.libretexts.org
cdnjs.cloudflare.com
cdn.libretexts.net
16 a.mtstatic.com eng.libretexts.org
a.mtstatic.com
13 eng.libretexts.org 4 redirects eng.libretexts.org
cdn.libretexts.net
11 hypothes.is 1 redirects cdn.hypothes.is
8 cdn.hypothes.is eng.libretexts.org
hypothes.is
cdn.hypothes.is
6 unpkg.com 4 redirects eng.libretexts.org
4 use.fontawesome.com eng.libretexts.org
use.fontawesome.com
4 fonts.googleapis.com eng.libretexts.org
cdn.libretexts.net
3 files.mtstatic.com eng.libretexts.org
3 www.google-analytics.com eng.libretexts.org
www.google-analytics.com
2 cloudflareinsights.com static.cloudflareinsights.com
2 donorbox.org cdn.libretexts.net
donorbox.org
2 www.google.de eng.libretexts.org
2 stats.g.doubleclick.net www.google-analytics.com
www.googletagmanager.com
2 fonts.gstatic.com fonts.googleapis.com
2 matomo-test-ecs.libretexts.org eng.libretexts.org
matomo-test-ecs.libretexts.org
2 www.googletagmanager.com eng.libretexts.org
www.google-analytics.com
2 cdn.jsdelivr.net eng.libretexts.org
cdn.libretexts.net
1 sentry.io cdn.hypothes.is
1 www.google.com eng.libretexts.org
1 region1.analytics.google.com www.googletagmanager.com
1 region1.google-analytics.com www.googletagmanager.com
1 static.cloudflareinsights.com eng.libretexts.org
1 pro.fontawesome.com eng.libretexts.org
145 25

This site contains links to these domains. Also see Links.

Domain
register.libretexts.org
commons.libretexts.org
libretexts.org
mindtouch.com
www.nice.com
Subject Issuer Validity Valid
*.libretexts.org
Amazon RSA 2048 M01
2023-06-13 -
2024-07-11
a year crt.sh
*.mtstatic.com
Amazon RSA 2048 M01
2023-08-02 -
2024-08-30
a year crt.sh
libretexts.net
GTS CA 1P5
2024-02-24 -
2024-05-24
3 months crt.sh
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3
2023-07-03 -
2024-07-02
a year crt.sh
upload.video.google.com
GTS CA 1C3
2024-02-19 -
2024-05-13
3 months crt.sh
use.fontawesome.com
Cloudflare Inc ECC CA-3
2023-10-12 -
2024-10-10
a year crt.sh
*.fontawesome.com
DigiCert Global G2 TLS RSA SHA256 2020 CA1
2023-12-04 -
2025-01-03
a year crt.sh
cloudflareinsights.com
GTS CA 1P5
2024-03-10 -
2024-06-08
3 months crt.sh
*.google-analytics.com
GTS CA 1C3
2024-02-19 -
2024-05-13
3 months crt.sh
matomo-test-ecs.libretexts.org
Amazon RSA 2048 M03
2024-03-09 -
2025-04-07
a year crt.sh
*.gstatic.com
GTS CA 1C3
2024-02-19 -
2024-05-13
3 months crt.sh
*.g.doubleclick.net
GTS CA 1C3
2024-02-19 -
2024-05-13
3 months crt.sh
hypothes.is
E1
2024-03-09 -
2024-06-07
3 months crt.sh
www.google.de
GTS CA 1C3
2024-02-19 -
2024-05-13
3 months crt.sh
www.google.com
GTS CA 1C3
2024-02-19 -
2024-05-13
3 months crt.sh
sentry.io
DigiCert Global G2 TLS RSA SHA256 2020 CA1
2023-08-08 -
2024-09-07
a year crt.sh
donorbox.org
E1
2024-01-31 -
2024-04-30
3 months crt.sh

This page contains 2 frames:

Primary Page: https://eng.libretexts.org/
Frame ID: 2155EF2306F2CC0FB17F8F281E3ABF37
Requests: 129 HTTP requests in this frame

Frame: https://hypothes.is/app.html
Frame ID: D2275FB1FF2AA966FBB601AD5D0E7B21
Requests: 15 HTTP requests in this frame

Screenshot

Page Title

Home - Engineering LibreTexts

Page URL History Show full URLs

  1. http://eng.libretexts.org/ HTTP 301
    https://eng.libretexts.org/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • ([\d.]+)?/mathjax\.js

Overall confidence: 100%
Detected patterns
  • bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.js

Overall confidence: 100%
Detected patterns
  • require.*\.js

Overall confidence: 100%
Detected patterns
  • static\.cloudflareinsights\.com/beacon(?:\.min)?\.js

Overall confidence: 100%
Detected patterns
  • (?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:.*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)

Overall confidence: 100%
Detected patterns
  • google-analytics\.com/(?:ga|urchin|analytics)\.js

Overall confidence: 100%
Detected patterns
  • googletagmanager\.com/gtag/js

Overall confidence: 100%
Detected patterns
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Overall confidence: 100%
Detected patterns
  • //cdn\.jsdelivr\.net/

Page Statistics

145
Requests

96 %
HTTPS

83 %
IPv6

18
Domains

25
Subdomains

23
IPs

3
Countries

3524 kB
Transfer

12488 kB
Size

13
Cookies

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

  1. http://eng.libretexts.org/ HTTP 301
    https://eng.libretexts.org/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 15
  • https://unpkg.com/@popperjs/core@2 HTTP 302
  • https://unpkg.com/@popperjs/core@2.11.8 HTTP 302
  • https://unpkg.com/@popperjs/core@2.11.8/dist/umd/popper.min.js
Request Chain 16
  • https://unpkg.com/tippy.js@6 HTTP 302
  • https://unpkg.com/tippy.js@6.3.7 HTTP 302
  • https://unpkg.com/tippy.js@6.3.7/dist/tippy-bundle.umd.min.js
Request Chain 40
  • https://hypothes.is/embed.js HTTP 302
  • https://cdn.hypothes.is/hypothesis
Request Chain 79
  • https://eng.libretexts.org/@api/deki/files/4/mindtouch.page%2523thumbnail?revision=2 HTTP 302
  • https://files.mtstatic.com/site_7337/4/1?Expires=1710860055&Signature=GiTz8phRMeBGC9ZMGPFght5W4isi3lzQg4S7wD1OCqd5Q1FN5BH~BlO3MpjWuflvNOT5xBLMjDyK2q~I9JD~ApviVWppzcK4FcSljCVUhW22cSLAQ1rRW6PLOAeHGDh-rId-B3jGAJQDCgPmr1w2Z1pAcY4DMlfbENT1OP4o6ms_&Key-Pair-Id=APKAJ5Y6AV4GI7A555NA
Request Chain 80
  • https://eng.libretexts.org/@api/deki/files/383/mindtouch.page%2523thumbnail?revision=4 HTTP 302
  • https://files.mtstatic.com/site_7337/383/3?Expires=1710860601&Signature=nMZI~mia5uE4vtI7yD6EDKSIsVgS1sTXYK~WWgAs2WZbAtqgEEstmTtF6Q6Zcj6~F~iMb6Llre~ry98Kg2ylmrvAAhZobmo7e-q5DjIPGuvm91Q9I9IOATV2gMUiMTCQ4kMHIr9paCukWhgnhAtAtNT0BYraMe7YqszRZCJsDsA_&Key-Pair-Id=APKAJ5Y6AV4GI7A555NA
Request Chain 81
  • https://eng.libretexts.org/@api/deki/files/40155/mindtouch.page%2523thumbnail?revision=1 HTTP 302
  • https://files.mtstatic.com/site_7337/40155/0?Expires=1710860603&Signature=iXWjOJijFC8Yx4cO0HqbbHAiJhmPaITX9QXQ09e-ibe6PzHJA-epv7DjJjLYcG8FY-JbhKrEi96fbU2~1BT9WHUfIUJEsboE3SFPT1R3y9G5tEJASP9PVxj1ywJHIgag5Ql64IbgbXsxVJX-kwRNtvpWMDvQ63ZAOZFK40Oiga4_&Key-Pair-Id=APKAJ5Y6AV4GI7A555NA

145 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
eng.libretexts.org/
Redirect Chain
  • http://eng.libretexts.org/
  • https://eng.libretexts.org/
106 KB
25 KB
Document
General
Full URL
https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2359:2800:11:2451:2fc0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
/
Resource Hash
fa2b65be444286d221fc6e453aac5eb195b6f7332aa41f703d070ac731240412
Security Headers
Name Value
Content-Security-Policy upgrade-insecure-requests; default-src https: data: filesystem: blob: mediastream: 'unsafe-inline' 'unsafe-eval'; connect-src https: wss:
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

alt-svc
h3=":443"; ma=86400
cache-control
no-cache, no-store, must-revalidate, max-age=0
content-encoding
br
content-language
en-US
content-length
24603
content-security-policy
upgrade-insecure-requests; default-src https: data: filesystem: blob: mediastream: 'unsafe-inline' 'unsafe-eval'; connect-src https: wss:
content-type
text/html; charset=utf-8
date
Tue, 19 Mar 2024 14:08:06 GMT
expires
-1
strict-transport-security
max-age=31536000; includeSubDomains
vary
Accept-Encoding,Cookie
via
1.1 35cfa6fbcb341fd2ae15e24a43e2f57a.cloudfront.net (CloudFront)
x-amz-cf-id
75EvFkyTsv6VbmjH2s2-JGtjKuev4yH16kuQK0qqrzE9hAC1SSYi9A==
x-amz-cf-pop
FRA60-P10
x-cache
Miss from cloudfront
x-content-type-options
nosniff
x-deki-site
id=site_7337
x-xss-protection
1; mode=block

Redirect headers

Alt-Svc
h3=":443"; ma=86400
Connection
keep-alive
Content-Length
167
Content-Type
text/html
Date
Tue, 19 Mar 2024 14:08:05 GMT
Location
https://eng.libretexts.org/
Server
CloudFront
Via
1.1 35cfa6fbcb341fd2ae15e24a43e2f57a.cloudfront.net (CloudFront)
X-Amz-Cf-Id
s5AH6oTo0X_xmc5kXYxvirdTe8MIZQ5xVjRkjiimgGXmNEXgIFeOIg==
X-Amz-Cf-Pop
FRA60-P10
X-Cache
Redirect from cloudfront
anonymous.css
a.mtstatic.com/@cache/layout/
1 MB
121 KB
Stylesheet
General
Full URL
https://a.mtstatic.com/@cache/layout/anonymous.css?_=79eed2b4cc8f75c67823e0994717cccd_ZW5nLmxpYnJldGV4dHMub3Jn:site_7337
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
143.204.215.2 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-143-204-215-2.fra53.r.cloudfront.net
Software
/
Resource Hash
3e0ec9263588fe028cb7894d84a117aa2f1aad862b8fc59b658f9157f645f0b1
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Thu, 14 Mar 2024 21:50:06 GMT
content-encoding
br
x-content-type-options
nosniff
via
1.1 b61ff825a3ca0ff851caf7741034ca52.cloudfront.net (CloudFront), 1.1 a75b67932d84d80b40e12159613deb16.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-P10, FRA53-C1
age
404281
etag
79eed2b4cc8f75c67823e0994717cccd_bXQtY2RuLm1pbmR0b3VjaC51cw==
vary
Accept-Encoding
x-cache
Hit from cloudfront
content-type
text/css; charset=utf-8
x-deki-site
id=site_7337
access-control-allow-origin
*
cache-control
max-age=29030400, public
x-amz-cf-id
sF596a1JZClvmO3VUvy5TbwaVgRCLg-0VuHUztFEHXY7Zxzc4YnVQg==
expires
Fri, 14 Mar 2025 21:50:06 GMT
print.css
a.mtstatic.com/@cache/layout/
549 KB
74 KB
Stylesheet
General
Full URL
https://a.mtstatic.com/@cache/layout/print.css?_=fe0c4f0a51a69fc6a929034f27dea11f:site_7337
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
143.204.215.2 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-143-204-215-2.fra53.r.cloudfront.net
Software
/
Resource Hash
6e92b9381cdc0ea7e4ae6b9efee9b168a16f826befcac397d1a035b79cb1f511
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Thu, 14 Mar 2024 21:50:07 GMT
content-encoding
br
x-content-type-options
nosniff
via
1.1 de11a38373aee7f9d5ba9d586bb8bfd2.cloudfront.net (CloudFront), 1.1 a75b67932d84d80b40e12159613deb16.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA56-P10, FRA53-C1
age
404280
etag
fe0c4f0a51a69fc6a929034f27dea11f
vary
Accept-Encoding
x-cache
Hit from cloudfront
content-type
text/css; charset=utf-8
x-deki-site
id=site_7337
access-control-allow-origin
*
cache-control
max-age=29030400, public
x-amz-cf-id
MLy3JtZLLybCcgJlwJJCTa8POWCEndVEo9uCyCSDlW5QP9kw_SqEJg==
expires
Fri, 14 Mar 2025 21:50:07 GMT
globals.jqueryv2.2.4.js
a.mtstatic.com/deki/javascript/out/
393 KB
112 KB
Script
General
Full URL
https://a.mtstatic.com/deki/javascript/out/globals.jqueryv2.2.4.js?_=8cbf1dd4b93c2397bd16e8f164927989cfa45233:site_7337
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
143.204.215.2 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-143-204-215-2.fra53.r.cloudfront.net
Software
/
Resource Hash
30aee54f8ca19c84ab7a712c56df562390d1d1ee502c8fec8069d2276afbc774

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Thu, 14 Mar 2024 21:50:06 GMT
content-encoding
br
via
1.1 8c2a58b44ec0f49caee32696bddc8526.cloudfront.net (CloudFront), 1.1 a75b67932d84d80b40e12159613deb16.cloudfront.net (CloudFront)
last-modified
Mon, 11 Mar 2024 20:21:51 GMT
x-amz-cf-pop
FRA56-P10, FRA53-C1
age
404281
vary
Accept-Encoding
x-cache
Hit from cloudfront
content-type
application/javascript
access-control-allow-origin
*
cache-control
max-age=31536000, public
accept-ranges
bytes
content-length
113740
x-amz-cf-id
pXM3frojK4uUShfcPYrYD2klM_KB0YiKFbhHvq4mCJtPvK8sp3ms1g==
expires
Fri, 14 Mar 2025 21:50:06 GMT
deki.legacy.js
a.mtstatic.com/deki/javascript/out/
109 KB
29 KB
Script
General
Full URL
https://a.mtstatic.com/deki/javascript/out/deki.legacy.js?_=8cbf1dd4b93c2397bd16e8f164927989cfa45233:site_7337
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
143.204.215.2 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-143-204-215-2.fra53.r.cloudfront.net
Software
/
Resource Hash
9e69636b7928c2b674ca544413b93e08447be6b4cfb9104833e6965660960a9f

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Thu, 14 Mar 2024 21:50:06 GMT
content-encoding
br
via
1.1 7b33e91c10f2279399751cc4de05f400.cloudfront.net (CloudFront), 1.1 a75b67932d84d80b40e12159613deb16.cloudfront.net (CloudFront)
last-modified
Mon, 11 Mar 2024 20:21:51 GMT
x-amz-cf-pop
FRA56-P10, FRA53-C1
age
404281
vary
Accept-Encoding
x-cache
Hit from cloudfront
content-type
application/javascript
access-control-allow-origin
*
cache-control
max-age=31536000, public
accept-ranges
bytes
content-length
28778
x-amz-cf-id
1xlK8YmctTcgYdgc_o1JafCNb8BzOmsK-CPt7GyOlGvX6KAvm0wmkA==
expires
Fri, 14 Mar 2025 21:50:06 GMT
community.js
a.mtstatic.com/deki/javascript/out/
443 KB
89 KB
Script
General
Full URL
https://a.mtstatic.com/deki/javascript/out/community.js?_=8cbf1dd4b93c2397bd16e8f164927989cfa45233:site_7337
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
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strict-transport-security
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strict-transport-security
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strict-transport-security
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strict-transport-security
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date
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strict-transport-security
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date
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strict-transport-security
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Protocol
H2
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2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
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Response headers

date
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strict-transport-security
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cf-cache-status
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Protocol
H2
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TLS 1.3, , AES_128_GCM
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{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=2x%2B%2FHPFrjlu2Eht1vR8eEyVVsH0SVYihv2OmO%2FvuhON5yRfPy2rDt4dcjuI5VTS%2B3VRrEN6S1nMpLjz6rjPw%2Fpk56YRW6VJLtgD%2FwAogIGgN5UvlOXIZefG%2BcN%2BzZOQGBMA4Wb7CKzJne%2F6U3u4aUzU%3D"}],"group":"cf-nel","max_age":604800}
content-type
text/css
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
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cache-control
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cf-ray
866e0860fe832c1c-FRA
ableplayer.min.js
cdn.libretexts.net/github/ableplayer/build/
219 KB
58 KB
Script
General
Full URL
https://cdn.libretexts.net/github/ableplayer/build/ableplayer.min.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Security Headers
Name Value
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Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
x-amz-request-id
tx000004db94b94493e2cbf-00656a23ae-3c6f493d-sfo3a
age
2363
x-envoy-upstream-healthchecked-cluster
alt-svc
h3=":443"; ma=86400
last-modified
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server
cloudflare
etag
W/"8f19188ca28444e3821bc18eeea507fc"
vary
Origin, Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=HKih0SNC1c9dEvDFPEz0fNaz1rHENsA6cu6rTIb%2BCsmUzHL4ujrCE%2FKhMvD00%2BRkD2uY%2B0zgtqN5TwjHQUsOcgil0NF8gG6b5ishzuBUACqFQ3oSmyHYvfhNecEcLRlNXh8dqZvTNVy5FIcNb1A7SOs%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
Normal
cache-control
max-age=691200
cf-ray
866e08612edd2c1c-FRA
ableplayer.min.css
cdn.libretexts.net/github/ableplayer/build/
18 KB
4 KB
Stylesheet
General
Full URL
https://cdn.libretexts.net/github/ableplayer/build/ableplayer.min.css
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15552000; includeSubDomains; preload

Request headers

accept-language
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Referer
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User-Agent
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Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
x-amz-request-id
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x-envoy-upstream-healthchecked-cluster
alt-svc
h3=":443"; ma=86400
last-modified
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server
cloudflare
etag
W/"f661986b10c608f0219144ca155ebf89"
vary
Origin, Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=hL%2BiFpTtbdhfmcNhqNPlY7J8EpjjaYfWxn4hXmG38Xs61LuQkaFJFhv6WQSsPWzKbSjv2VV61WmrI5nQLZsEcbpqJ0UKyy77tdle9iny7%2Bhb0h6C%2BO22v9NcPEeTkV4tpsVHxrQH1FuTAf9Jk2GyQUQ%3D"}],"group":"cf-nel","max_age":604800}
content-type
text/css
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
Normal
cache-control
max-age=691200
cf-ray
866e0860fe852c1c-FRA
libreNavButtons.min.js
cdn.libretexts.net/github/LibreTextsMain/NavButtons/
2 KB
1009 B
Script
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/NavButtons/libreNavButtons.min.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15552000; includeSubDomains; preload

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
x-amz-request-id
tx00000da4a1cff06464f1b-0065e4588b-3c6f493d-sfo3a
age
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x-envoy-upstream-healthchecked-cluster
alt-svc
h3=":443"; ma=86400
last-modified
Sat, 02 Mar 2024 19:24:11 GMT
server
cloudflare
etag
W/"e1fc99c64f77860f4bcf39b7b49b5466"
vary
Origin, Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=zHOM6um%2FK1fUKi02bcp%2BleYQzF6V2K4CQjQXrRBDV%2FVBlzylyxe9rULYkmut3oImUu1cU2CKPvFdOBWiJQLWEzXRPqdQ%2BFVs05qvzRFglpEf89vAEHQxIYKLmHlHJwaR4BHSPzUSvs468kovLS7wzGk%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
Normal
cache-control
max-age=691200
cf-ray
866e08612edf2c1c-FRA
libreNavButtons.min.css
cdn.libretexts.net/github/LibreTextsMain/NavButtons/
977 B
1 KB
Stylesheet
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/NavButtons/libreNavButtons.min.css
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15552000; includeSubDomains; preload

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
x-amz-request-id
tx00000cf41a99a02c83998-0065e3fd8a-3c6f48ac-sfo3a
age
2296
x-envoy-upstream-healthchecked-cluster
alt-svc
h3=":443"; ma=86400
last-modified
Sat, 02 Mar 2024 19:24:11 GMT
server
cloudflare
etag
W/"bdf9c89183fe0d0649b2dac3a557e0ed"
vary
Origin, Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=qJVaRPuL4D0VZ%2FCr2%2BYj9ln4DA4zluZbUa0peMe1%2F894aaBcZ1Hmva5u1tdAmx6nVdfMYEt8huGtCJuMkobtqpIsOF2EzJqC%2BZDY5Zj%2F01j3tM5WqKpHgvX6GM9kZlRAW7t30kQVsAUz45NUpn9%2FItM%3D"}],"group":"cf-nel","max_age":604800}
content-type
text/css
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
Normal
cache-control
max-age=691200
cf-ray
866e0860fe872c1c-FRA
libreExportButtons.min.js
cdn.libretexts.net/github/LibreTextsMain/ExportButtons/
15 KB
5 KB
Script
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/ExportButtons/libreExportButtons.min.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15552000; includeSubDomains; preload

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
x-amz-request-id
tx00000001fe39b5ab05d94-0065e6ca00-3c6f48ac-sfo3a
age
94
x-envoy-upstream-healthchecked-cluster
alt-svc
h3=":443"; ma=86400
last-modified
Sat, 02 Mar 2024 19:23:47 GMT
server
cloudflare
etag
W/"56afa1bb3690a27da51d0cf98cb37a58"
vary
Origin, Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=rKDfkYWiVdiKAfjYl%2BM7nziYGBP35vmT06vvSY04DZF6MP7fCZhQKHVCLt7AMsbX6MIf9C2C5TukRBW9EM4e6CSO6%2BogDhSWaEZCjL5WcwMKguE0jXFabEwZUiZAJF2Q1DR5VQC8za1MfC%2BzZP%2FftLY%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
Normal
cache-control
max-age=691200
cf-ray
866e08612ee12c1c-FRA
sidebar.min.js
cdn.libretexts.net/github/LibreTextsMain/Binh%20Nguyen/ReactSidebar/build/
427 KB
127 KB
Script
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/Binh%20Nguyen/ReactSidebar/build/sidebar.min.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=15552000; includeSubDomains; preload

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
x-amz-request-id
tx00000006fb7cf4b5a50ee-0065e4dc5d-3c6f48c0-sfo3a
age
4425
x-envoy-upstream-healthchecked-cluster
alt-svc
h3=":443"; ma=86400
last-modified
Sat, 02 Mar 2024 19:23:46 GMT
server
cloudflare
etag
W/"4f9a292ebdcfaa09f9ae8c6bf8d21e1e"
vary
Origin, Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=Nkj8udvNZLn9sbgNxks2CSdV9PG9%2Faj4YqqLYrYfUaQHBp%2BOiOWVgIladO%2FLVq%2FsHLLfgTEX2T5ofp7uIV5GPg6Rt7xxSarTOUoS3dVyrswAm4qxi0eq0jhGRQDtqEIcEljXKRO7VyZtBCV%2BTwIjhvk%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
Normal
cache-control
max-age=691200
cf-ray
866e08612ee32c1c-FRA
licensecontrol.min.js
cdn.libretexts.net/github/LibreTextsMain/LicenseControl/
4 KB
2 KB
Script
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/LicenseControl/licensecontrol.min.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
2f3a62d5401333e855446fb49e79f94c525347acb65c5de1d38f05d86ac2f0d6
Security Headers
Name Value
Strict-Transport-Security max-age=15552000; includeSubDomains; preload

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
x-amz-request-id
tx00000609b79eefc57f5c6-0065e94661-3c6f487a-sfo3a
age
1642
x-envoy-upstream-healthchecked-cluster
alt-svc
h3=":443"; ma=86400
last-modified
Sat, 02 Mar 2024 19:23:50 GMT
server
cloudflare
etag
W/"a807527d994c7d5cbbdd800a953ddd03"
vary
Origin, Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=HRk%2FUOoutj03wK47qAmvxJPYNnivPwQr4vJyOIa9I6zMACBO1pIZCMZ2BRj0AlYBj8gTOGdaHRibDPA9V3mCyjgbny%2FnTA4aY8rlC0Nh569gYCweIUhG%2F9nZQtQD6eZHjl5odQfskzrpkyoY%2BQaxTE8%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
Normal
cache-control
max-age=691200
cf-ray
866e08612ee42c1c-FRA
licensecontrol.min.css
cdn.libretexts.net/github/LibreTextsMain/LicenseControl/
468 B
607 B
Stylesheet
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/LicenseControl/licensecontrol.min.css
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Security Headers
Name Value
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Request headers

accept-language
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Referer
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User-Agent
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Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
x-amz-request-id
tx00000107717a3338590a7-0065ecd05a-48992fd2-sfo3a
age
4553
x-envoy-upstream-healthchecked-cluster
alt-svc
h3=":443"; ma=86400
last-modified
Sat, 02 Mar 2024 19:23:50 GMT
server
cloudflare
etag
W/"05334edefe3e531e320ffbcb6ec60be3"
vary
Origin, Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
report-to
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content-type
text/css
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
Normal
cache-control
max-age=691200
cf-ray
866e0860fe8c2c1c-FRA
casbridge.min.js
cdn.libretexts.net/github/LibreTextsMain/CASBridge/dist/
23 KB
8 KB
Script
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/CASBridge/dist/casbridge.min.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
372eb5967ed86578a481ff0f291e1972673d83786343bc71e72671add05c9d5b
Security Headers
Name Value
Strict-Transport-Security max-age=15552000; includeSubDomains; preload

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://eng.libretexts.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.6261.128 Safari/537.36

Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
x-amz-request-id
tx000000407e27fb32efd23-0065e446c5-3c6f48ac-sfo3a
age
100
x-envoy-upstream-healthchecked-cluster
alt-svc
h3=":443"; ma=86400
last-modified
Sat, 02 Mar 2024 19:23:47 GMT
server
cloudflare
etag
W/"e737a0ace5810cb551db88771952380d"
vary
Origin, Access-Control-Request-Headers, Access-Control-Request-Method, Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=Zih7Iu4EynxgE5m%2BK8aqpvGvwyTIZFZKvTsVUVnZ1sFtlmqYH0X%2BWHVVlkLuHR2sbYxXV55byvVWoZPy7kPqDhXR4hy3PLlm8twcrIUrWRF9NLC0TSN1EdHhhAqXq%2FSNC6ZQH2cTSwRVsBHrz5N9w3U%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript
x-do-cdn-uuid
3982ef86-b1ec-41a8-9ba1-491ee61921b1
x-rgw-object-type
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cache-control
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strict-transport-security
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content-encoding
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server
cloudflare
cf-cdnjs-via
cfworker/kv
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report-to
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registerPlugin.min.js
cdn.libretexts.net/github/ckeditor-binder-plugin/js/
44 KB
16 KB
Script
General
Full URL
https://cdn.libretexts.net/github/ckeditor-binder-plugin/js/registerPlugin.min.js
Requested by
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URL: https://eng.libretexts.org/
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H2
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TLS 1.3, , AES_128_GCM
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accept-language
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Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
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server
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etag
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cache-control
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cf-ray
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cdn.libretexts.net/github/ckeditor-query-plugin/
16 KB
7 KB
Script
General
Full URL
https://cdn.libretexts.net/github/ckeditor-query-plugin/queryPlugin.min.js
Requested by
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URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
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cloudflare /
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accept-language
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User-Agent
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Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
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x-envoy-upstream-healthchecked-cluster
alt-svc
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server
cloudflare
etag
W/"62707527f11b6809f248ee0bcc5fb2fb"
vary
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report-to
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x-rgw-object-type
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cache-control
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cf-ray
866e08613ef42c1c-FRA
libreFormatPlugin.min.js
cdn.libretexts.net/github/LibreTextsMain/EditorPlugins/dist/
2 KB
1 KB
Script
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/EditorPlugins/dist/libreFormatPlugin.min.js
Requested by
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URL: https://eng.libretexts.org/
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H2
Security
TLS 1.3, , AES_128_GCM
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2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
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Security Headers
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Request headers

accept-language
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User-Agent
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Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
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x-envoy-upstream-healthchecked-cluster
alt-svc
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server
cloudflare
etag
W/"17d721d960000534c60f56bb83e8b3b2"
vary
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report-to
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content-type
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x-rgw-object-type
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cache-control
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cf-ray
866e08613ef52c1c-FRA
libreBoxesPlugin.min.js
cdn.libretexts.net/github/LibreTextsMain/EditorPlugins/dist/
2 KB
1 KB
Script
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/EditorPlugins/dist/libreBoxesPlugin.min.js
Requested by
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URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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Reverse DNS
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cloudflare /
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Security Headers
Name Value
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Request headers

accept-language
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User-Agent
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Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
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x-envoy-upstream-healthchecked-cluster
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server
cloudflare
etag
W/"1892c37dea1dec14967c39a09f1ecaab"
vary
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report-to
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content-type
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x-do-cdn-uuid
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x-rgw-object-type
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cache-control
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cf-ray
866e08613ef62c1c-FRA
libreQueryPlugin.min.js
cdn.libretexts.net/github/LibreTextsMain/EditorPlugins/dist/
1 KB
1 KB
Script
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/EditorPlugins/dist/libreQueryPlugin.min.js
Requested by
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URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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cloudflare /
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Name Value
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Request headers

accept-language
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User-Agent
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Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
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x-envoy-upstream-healthchecked-cluster
alt-svc
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server
cloudflare
etag
W/"7358b5873886a924b4e3ea0b4dba2fd8"
vary
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report-to
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content-type
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x-do-cdn-uuid
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x-rgw-object-type
Normal
cache-control
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cf-ray
866e08613ef82c1c-FRA
a11yPlugin.min.js
cdn.libretexts.net/github/ckeditor-a11ychecker-plugin/
199 KB
53 KB
Script
General
Full URL
https://cdn.libretexts.net/github/ckeditor-a11ychecker-plugin/a11yPlugin.min.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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cloudflare /
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Name Value
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Request headers

accept-language
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User-Agent
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Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
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x-amz-request-id
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x-envoy-upstream-healthchecked-cluster
alt-svc
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server
cloudflare
etag
W/"85c739bdafb7be00873d5e5a94b41b3b"
vary
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report-to
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content-type
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x-do-cdn-uuid
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x-rgw-object-type
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cache-control
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cf-ray
866e08613efa2c1c-FRA
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1 KB
972 B
Script
General
Full URL
https://cdn.libretexts.net/github/LibreTextsMain/Miscellaneous/headerfooter.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700:3034::ac43:d829 , United States, ASN13335 (CLOUDFLARENET, US),
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cloudflare /
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Name Value
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Request headers

accept-language
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User-Agent
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Response headers

date
Tue, 19 Mar 2024 14:08:07 GMT
strict-transport-security
max-age=15552000; includeSubDomains; preload
content-encoding
br
cf-cache-status
HIT
nel
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x-amz-request-id
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x-envoy-upstream-healthchecked-cluster
alt-svc
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server
cloudflare
etag
W/"acde498bc69d987135a80376d9bd5322"
vary
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report-to
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content-type
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x-do-cdn-uuid
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x-rgw-object-type
Normal
cache-control
max-age=691200
cf-ray
866e08613efd2c1c-FRA
f1.js
eng.libretexts.org/@embed/
17 KB
5 KB
Script
General
Full URL
https://eng.libretexts.org/@embed/f1.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2359:2800:11:2451:2fc0:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
/
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Name Value
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X-Content-Type-Options nosniff

Request headers

accept-language
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Referer
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User-Agent
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Response headers

date
Tue, 19 Mar 2024 14:08:04 GMT
strict-transport-security
max-age=31536000; includeSubDomains
x-content-type-options
nosniff
content-encoding
gzip
via
1.1 35cfa6fbcb341fd2ae15e24a43e2f57a.cloudfront.net (CloudFront)
x-amz-cf-pop
FRA60-P10
vary
Accept-Encoding
x-cache
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x-deki-site
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content-type
application/javascript; charset=utf-8
cache-control
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alt-svc
h3=":443"; ma=86400
content-length
4946
x-amz-cf-id
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ui.widget.lsfOrderedSubpages.js
a.mtstatic.com/deki/javascript/out/standalone/
3 KB
2 KB
Script
General
Full URL
https://a.mtstatic.com/deki/javascript/out/standalone/ui.widget.lsfOrderedSubpages.js?_=8cbf1dd4b93c2397bd16e8f164927989cfa45233:site_7337
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
143.204.215.2 , United States, ASN16509 (AMAZON-02, US),
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Software
/
Resource Hash
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Request headers

accept-language
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User-Agent
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Response headers

date
Thu, 14 Mar 2024 21:52:13 GMT
content-encoding
br
via
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last-modified
Mon, 11 Mar 2024 20:21:51 GMT
x-amz-cf-pop
FRA56-P10, FRA53-C1
age
404154
vary
Accept-Encoding
x-cache
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content-type
application/javascript
access-control-allow-origin
*
cache-control
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accept-ranges
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content-length
1084
x-amz-cf-id
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expires
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js
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269 KB
91 KB
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Full URL
https://www.googletagmanager.com/gtag/js?id=G-ZBJTW3GPBY
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Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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accept-language
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User-Agent
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Response headers

date
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content-encoding
br
strict-transport-security
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server
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vary
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content-type
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alt-svc
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expires
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cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/
62 KB
17 KB
Script
General
Full URL
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS_HTML
Requested by
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Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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accept-language
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date
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content-encoding
br
x-content-type-options
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cf-cache-status
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server
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etag
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expires
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serviceworker-unregister.js
a.mtstatic.com/deki/javascript/out/standalone/
197 B
584 B
Script
General
Full URL
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H2
Security
TLS 1.3, , AES_128_GCM
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accept-language
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User-Agent
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Response headers

date
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content-encoding
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x-amz-cf-pop
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expires
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pageLoaded.js
a.mtstatic.com/deki/javascript/out/standalone/
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598 B
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General
Full URL
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Requested by
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Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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143.204.215.2 , United States, ASN16509 (AMAZON-02, US),
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User-Agent
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date
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content-encoding
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x-amz-cf-pop
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404281
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a.mtstatic.com/deki/javascript/out/standalone/
2 KB
1 KB
Script
General
Full URL
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Requested by
Host: eng.libretexts.org
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Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
143.204.215.2 , United States, ASN16509 (AMAZON-02, US),
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Response headers

date
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content-encoding
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x-amz-cf-pop
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Full URL
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H2
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TLS 1.3, , AES_128_GCM
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Request headers

Referer
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x-deki-page-view-id
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content-type
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Response headers

x-dream-feature
POST:events/page-view/*
date
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strict-transport-security
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via
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x-deki-site
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65 KB
22 KB
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General
Full URL
https://matomo-test-ecs.libretexts.org/matomo.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
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Reverse DNS
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Software
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Resource Hash
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Request headers

accept-language
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Referer
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User-Agent
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Response headers

date
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content-encoding
gzip
last-modified
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server
Apache/2.4.57 (Debian)
etag
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vary
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accept-ranges
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content-length
21709
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52 KB
21 KB
Script
General
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: eng.libretexts.org
URL: https://eng.libretexts.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:806::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
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Software
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Security Headers
Name Value
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Request headers

accept-language
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User-Agent
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Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
date
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last-modified
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server
Golfe2
age
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content-type
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cache-control
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cross-origin
alt-svc
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content-length
20994
expires
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css2
fonts.googleapis.com/
696 B
515 B
Stylesheet
General
Full URL
https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@48,400,0,0
Requested by
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Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
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Software
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Name Value
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Request headers

accept-language
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User-Agent
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Response headers

strict-transport-security
max-age=31536000
date
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content-encoding
gzip
x-content-type-options
nosniff
cross-origin-resource-policy
cross-origin
alt-svc
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x-xss-protection
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last-modified
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server
ESF
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x-frame-options
SAMEORIGIN
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expires
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ball-atom.min.css
cdn.jsdelivr.net/npm/load-awesome@1.1.0/css/
5 KB
1 KB
Stylesheet
General
Full URL
https://cdn.jsdelivr.net/npm/load-awesome@1.1.0/css/ball-atom.min.css
Requested by
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URL: https://cdn.libretexts.net/github/readerview/js-loading-overlay.min.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
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Software
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Resource Hash
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Security Headers
Name Value
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Request headers

accept-language
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Response headers

date
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strict-transport-security
max-age=31536000; includeSubDomains; preload
x-content-type-options
nosniff
cf-cache-status
HIT
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alt-svc
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x-jsd-version-type
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Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
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Request headers

accept-language
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date
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content-encoding
br
x-content-type-options
nosniff
via
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x-cache
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content-type
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x-deki-site
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access-control-allow-origin
*
cache-control
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print.css
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Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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accept-language
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content-encoding
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x-content-type-options
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x-content-type-options
nosniff
age
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content-security-policy-report-only
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server
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expires
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Full URL
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strict-transport-security
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content-encoding
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x-amz-version-id
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x-amz-cf-pop
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strict-transport-security
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content-encoding
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pragma
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Response headers

pragma
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Full URL
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strict-transport-security
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Response headers

pragma
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Response headers

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content-encoding
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server
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Response headers

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content-security-policy
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Resource Hash
Security Headers
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x-content-type-options
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Response headers

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content-security-policy
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Response headers

date
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content-security-policy
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Response headers

date
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strict-transport-security
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nel
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server
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age
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vary
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1 KB
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General
Full URL
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Protocol
H3
Security
QUIC, , AES_128_GCM
Server
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Software
cloudflare /
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Request headers

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Response headers

date
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content-security-policy
font-src 'self' fonts.gstatic.com cdn.hypothes.is; script-src 'self' cdn.hypothes.is www.google-analytics.com; style-src 'self' fonts.googleapis.com cdn.hypothes.is 'unsafe-inline'
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Protocol
H3
Security
QUIC, , AES_128_GCM
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2606:4700:10::ac43:1687 , United States, ASN13335 (CLOUDFLARENET, US),
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Request headers

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Response headers

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Verdicts & Comments Add Verdict or Comment

347 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

object| regeneratorRuntime function| $ function| jQuery object| dialogPolyfill function| _ function| makeString function| s object| WebFont object| TimeMe object| Url object| Deki object| _paq string| GoogleAnalyticsObject function| ga object| JsLoadingOverlay function| LibreTextsReuse function| createLaunchpadElement function| loadLaunchpadScript function| hypothesisConfig boolean| beelineEnabled object| THREE boolean| THREEloaded function| TV3 function| TF3 function| TCo function| GLmol boolean| GLloaded boolean| JSloaded object| Jmol object| SwingController function| LoadClazz function| libreNavButtons number| 2f1acc6c3a606b082e5eef5e54414ffb function| activateBeeLine function| iFrameResize function| saveAs function| Sidebar object| FontAwesomeCdnConfig string| cssUrl boolean| h5pResizerInitialized function| gtag object| dataLayer object| MicroModal object| MathJax object| Popper object| google_tag_data object| gaplugins object| gaGlobal object| gaData function| tippy object| YAHOO object| CryptoJS number| dbits string| b64map string| b64pad function| hex2b64 function| b64tohex function| b64toBA number| canary boolean| j_lm function| BigInteger function| nbi function| am1 function| am2 function| am3 number| BI_FP string| BI_RM object| BI_RC number| rr number| vv function| int2char function| intAt function| bnpCopyTo function| bnpFromInt function| nbv function| bnpFromString function| bnpClamp function| bnToString function| bnNegate function| bnAbs function| bnCompareTo function| nbits function| bnBitLength function| bnpDLShiftTo function| bnpDRShiftTo function| bnpLShiftTo function| bnpRShiftTo function| bnpSubTo function| bnpMultiplyTo function| bnpSquareTo function| bnpDivRemTo function| bnMod function| Classic function| cConvert function| cRevert function| cReduce function| cMulTo function| cSqrTo function| bnpInvDigit function| Montgomery function| montConvert function| montRevert function| montReduce function| montSqrTo function| montMulTo function| bnpIsEven function| bnpExp function| bnModPowInt function| bnClone function| bnIntValue function| bnByteValue function| bnShortValue function| bnpChunkSize function| bnSigNum function| bnpToRadix function| bnpFromRadix function| bnpFromNumber function| bnToByteArray function| bnEquals function| bnMin function| bnMax function| bnpBitwiseTo function| op_and function| bnAnd function| op_or function| bnOr function| op_xor function| bnXor function| op_andnot function| bnAndNot function| bnNot function| bnShiftLeft function| bnShiftRight function| lbit function| bnGetLowestSetBit function| cbit function| bnBitCount function| bnTestBit function| bnpChangeBit function| bnSetBit function| bnClearBit function| bnFlipBit function| bnpAddTo function| bnAdd function| bnSubtract function| bnMultiply function| bnSquare function| bnDivide function| bnRemainder function| bnDivideAndRemainder function| bnpDMultiply function| bnpDAddOffset function| NullExp function| nNop function| nMulTo function| nSqrTo function| bnPow function| bnpMultiplyLowerTo function| bnpMultiplyUpperTo function| Barrett function| barrettConvert function| barrettRevert function| barrettReduce function| barrettSqrTo function| barrettMulTo function| bnModPow function| bnGCD function| bnpModInt function| bnModInverse object| lowprimes number| lplim function| bnIsProbablePrime function| bnpMillerRabin function| Arcfour function| ARC4init function| ARC4next function| prng_newstate undefined| rng_state number| rng_psize function| rng_seed_int function| rng_seed_time object| rng_pool number| rng_pptr object| ua undefined| z number| t function| rng_get_byte function| rng_get_bytes function| SecureRandom function| parseBigInt function| linebrk function| byte2Hex function| pkcs1pad2 function| oaep_mgf1_arr function| oaep_pad function| RSAKey function| RSASetPublic function| RSADoPublic function| RSAEncrypt function| RSAEncryptOAEP function| pkcs1unpad2 function| oaep_mgf1_str function| oaep_unpad function| RSASetPrivate function| RSASetPrivateEx function| RSAGenerate function| RSADoPrivate function| RSADecrypt function| RSADecryptOAEP function| ECFieldElementFp function| feFpEquals function| feFpToBigInteger function| feFpNegate function| feFpAdd function| feFpSubtract function| feFpMultiply function| feFpSquare function| feFpDivide function| ECPointFp function| pointFpGetX function| pointFpGetY function| pointFpEquals function| pointFpIsInfinity function| pointFpNegate function| pointFpAdd function| pointFpTwice function| pointFpMultiply function| pointFpMultiplyTwo function| ECCurveFp function| curveFpGetQ function| curveFpGetA function| curveFpGetB function| curveFpEquals function| curveFpGetInfinity function| curveFpFromBigInteger function| curveFpDecodePointHex function| jsonParse object| KJUR function| utf8tob64u function| b64utoutf8 object| ASN1HEX function| Base64x function| stoBA function| BAtos function| BAtohex function| stohex function| stob64 function| stob64u function| b64utos function| b64tob64u function| b64utob64 function| hextob64u function| b64utohex function| utf8tob64 function| b64toutf8 function| utf8tohex function| hextoutf8 function| hextorstr function| rstrtohex function| hextob64 function| hextob64nl function| b64nltohex function| hextopem function| pemtohex function| hextoArrayBuffer function| ArrayBuffertohex function| zulutomsec function| zulutosec function| zulutodate function| datetozulu function| uricmptohex function| hextouricmp function| ipv6tohex function| hextoipv6 function| hextoip function| iptohex function| encodeURIComponentAll function| newline_toUnix function| newline_toDos function| hextoposhex function| intarystrtohex function| strdiffidx object| KEYUTIL object| _RE_HEXDECONLY function| _rsasign_getHexPaddedDigestInfoForString function| _zeroPaddingOfSignature function| pss_mgf1_str function| _rsasign_getDecryptSignatureBI function| _rsasign_getHexDigestInfoFromSig function| _rsasign_getAlgNameAndHashFromHexDisgestInfo function| X509 function| X509CRL function| Cookies object| BeelineUtils function| BeeLineReader object| QRCode boolean| youtubeIframe object| AblePlayerInstances function| onYouTubeIframeAPIReady function| AblePlayer function| AccessibleSlider function| AccessibleDialog function| getCC function| licenseControl function| LibreTextsCASBridgeVerifyJWT function| LibreTextsLoginCAS function| LibreTextsLogoutCAS function| LibreTextsGlossarizer object| libretextGlossary function| setImmediate function| clearImmediate function| CitRequire function| buildcite function| getParam function| getCite function| download function| getFile function| hidecite function| attribution function| hideattr object| MindTouch number| _rollbarStartTime function| rollbar boolean| _rollbarDidLoad object| _MindTouchWebWidgetFactory object| __cfBeacon object| google_tag_manager string| front object| MathJaxConfig function| a object| ___FONT_AWESOME___ object| fontawesome-free-shims function| requirejs function| require function| define function| applyFocusVisiblePolyfill function| Hammer object| FontAwesomeConfig object| FontAwesome object| Piwik object| Matomo object| AnalyticsTracker function| piwik_log undefined| value object| DonorBox boolean| DBOX_INSTALLED function| dw_open

13 Cookies

Domain/Path Name / Value
eng.libretexts.org/ Name: mtwebsession
Value: f6140f7bae9b3d557fae1c011bcf3105
.eng.libretexts.org/ Name: dekisession
Value: "N2E4ZjM2YjUtMzE2Yy00OTNiLTk0MGUtMGNkMzRkYzU4YTgwfDIwMjQtMDMtMTlUMTQ6MDg6MDc="
.eng.libretexts.org/ Name: _ga
Value: GA1.3.174260287.1710857288
.eng.libretexts.org/ Name: _gid
Value: GA1.3.1951380092.1710857288
.eng.libretexts.org/ Name: _gat
Value: 1
.eng.libretexts.org/ Name: _gat_mtTracker
Value: 1
.libretexts.org/ Name: _ga
Value: GA1.1.174260287.1710857288
.libretexts.org/ Name: _ga_ZBJTW3GPBY
Value: GS1.1.1710857288.1.0.1710857288.0.0.0
.eng.libretexts.org/ Name: _ga_YNNYBFB9RM
Value: GS1.3.1710857288.1.0.1710857288.60.0.0
.libretexts.org/ Name: _pk_id.4.e4be
Value: b0d20db3a6af2336.1710857288.
.libretexts.org/ Name: _pk_ses.4.e4be
Value: 1
matomo-test-ecs.libretexts.org/ Name: AWSALBTG
Value: yKMwy6rNG1sUZdRIN8+e6xfpyXedvGTeP3tgSxjEiCCStf6NxytLAW1j+1t6WziVq3HVDmp24FxfM5p5EvPyjejxRO74GDhLZa13OitzXGVx+hkGCeaBPbM7mM1MCcJlXJuCRhzjGBQ3W0YjhtRB8ccL8O0Fjw9AiGw8hTO7p6ZHLJr5xbk=
matomo-test-ecs.libretexts.org/ Name: AWSALBTGCORS
Value: yKMwy6rNG1sUZdRIN8+e6xfpyXedvGTeP3tgSxjEiCCStf6NxytLAW1j+1t6WziVq3HVDmp24FxfM5p5EvPyjejxRO74GDhLZa13OitzXGVx+hkGCeaBPbM7mM1MCcJlXJuCRhzjGBQ3W0YjhtRB8ccL8O0Fjw9AiGw8hTO7p6ZHLJr5xbk=

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header Value
Content-Security-Policy upgrade-insecure-requests; default-src https: data: filesystem: blob: mediastream: 'unsafe-inline' 'unsafe-eval'; connect-src https: wss:
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

a.mtstatic.com
cdn.hypothes.is
cdn.jsdelivr.net
cdn.libretexts.net
cdnjs.cloudflare.com
cloudflareinsights.com
donorbox.org
eng.libretexts.org
files.mtstatic.com
fonts.googleapis.com
fonts.gstatic.com
hypothes.is
matomo-test-ecs.libretexts.org
pro.fontawesome.com
region1.analytics.google.com
region1.google-analytics.com
sentry.io
static.cloudflareinsights.com
stats.g.doubleclick.net
unpkg.com
use.fontawesome.com
www.google-analytics.com
www.google.com
www.google.de
www.googletagmanager.com
143.204.215.2
143.204.215.73
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