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104.16.44.99 Public Scan

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Submitted URL:
http://tools.ietf.org/html/rfc793
Effective URL:
https://datatracker.ietf.org/doc/html/rfc793
Submission: On April 15 via api (April 15th 2024, 12:21:18 pm UTC) from TR — Scanned from DE

Summary HTTP 14 Redirects Links 7 Behaviour Indicators

Summary

This website contacted 2 IPs in 2 countries across 1 domains to perform 14 HTTP transactions. The main IP is 104.16.44.99, located in and belongs to CLOUDFLARENET, US. The main domain is datatracker.ietf.org. The Cisco Umbrella rank of the primary domain is 239368.
TLS certificate: Issued by E1 on April 3rd 2024. Valid for: 3 months.

This is the only time datatracker.ietf.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
2 12	104.16.44.99 104.16.44.99	13335 (CLOUDFLAR...) (CLOUDFLARENET)
4	2606:4700::68... 2606:4700::6810:2d63	13335 (CLOUDFLAR...) (CLOUDFLARENET)
14	2

12 104.16.44.99 (None, ) 2 redirects

ASN13335 (CLOUDFLARENET, US)

tools.ietf.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
datatracker.ietf.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
static.ietf.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
analytics.ietf.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2606:4700::6810:2d63 (United States)

ASN13335 (CLOUDFLARENET, US)

static.ietf.org	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
16	ietf.org 2 redirects tools.ietf.org — Cisco Umbrella Rank: 369657 datatracker.ietf.org — Cisco Umbrella Rank: 239368 static.ietf.org — Cisco Umbrella Rank: 232012 analytics.ietf.org — Cisco Umbrella Rank: 336841	397 KB
14	1

	Domain	Requested by
9	static.ietf.org	datatracker.ietf.org static.ietf.org
4	datatracker.ietf.org	1 redirects datatracker.ietf.org
2	analytics.ietf.org	datatracker.ietf.org analytics.ietf.org
1	tools.ietf.org	1 redirects
14	4

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

Domain
www.rfc-editor.org
github.com

Subject Issuer	Validity	Valid
ietf.org E1	`2024-04-03` - `2024-07-02`	3 months	crt.sh
static.ietf.org E1	`2024-03-26` - `2024-06-24`	3 months	crt.sh

This page contains 2 frames:

Primary Page: https://datatracker.ietf.org/doc/html/rfc793
Frame ID: 3E29ECA6E43ECA5DB941B742FFEE4713
Requests: 12 HTTP requests in this frame

Frame: https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/b/scripts/jsd/bcc5fb0a8815/main.js
Frame ID: B1BB8AB695E42373A4794E6320DA51A3
Requests: 2 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

RFC 793 - Transmission Control Protocol

Page URL History Show full URLs

http://tools.ietf.org/html/rfc793 HTTP 307
https://tools.ietf.org/html/rfc793 HTTP 301
https://datatracker.ietf.org/doc/html/rfc793 Page URL

Detected technologies

Bootstrap (Web Frameworks) Expand

Overall confidence: 100%
Detected patterns

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

Page Statistics

14
Requests

93 %
HTTPS

50 %
IPv6

1
Domains

4
Subdomains

2
IPs

2
Countries

397 kB
Transfer

1063 kB
Size

1
Cookies

7 Outgoing links

These are links going to different origins than the main page.

URL: https://www.rfc-editor.org/errata_search.php?rfc=793
Title: View errata

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/errata.php#reportnew
Title: Report errata

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/rfc/rfc793.txt
Title: txt

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/rfc/rfc793.html
Title: html

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/rfc/pdfrfc/rfc793.txt.pdf
Title: pdf

Search URL Search Domain Scan URL

URL: https://www.rfc-editor.org/rfc/inline-errata/rfc793.html
Title: w/errata

Search URL Search Domain Scan URL

URL: https://github.com/ietf-tools/datatracker/issues/new/choose
Title: Report a bug

Search URL Search Domain Scan URL

Page URL History

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

http://tools.ietf.org/html/rfc793 HTTP 307
https://tools.ietf.org/html/rfc793 HTTP 301
https://datatracker.ietf.org/doc/html/rfc793 Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 9

https://datatracker.ietf.org/cdn-cgi/challenge-platform/scripts/jsd/main.js HTTP 302
https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/b/scripts/jsd/bcc5fb0a8815/main.js

14 HTTP transactions
0 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H3

200

Primary Request rfc793 Show response
datatracker.ietf.org/doc/html/
Redirect Chain

http://tools.ietf.org/html/rfc793
https://tools.ietf.org/html/rfc793
https://datatracker.ietf.org/doc/html/rfc793

207 KB
49 KB

315ms
222ms

Document
text/html

104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://datatracker.ietf.org/doc/html/rfc793

Protocol

Security

QUIC, , AES_128_GCM

Server

104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

d6640c0b2ba8468da26276d4238e1a02061885c079493e9e97afb565ec23c976

Security Headers

Name	Value
Content-Security-Policy	default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ http://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org .ietf.org meetecho.com .meetecho.com
Strict-Transport-Security	max-age=3600; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

Request headers

Accept-Language: de-DE,de;q=0.9;q=0.9
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Response headers

alt-svc: h3=":443"; ma=86400
cache-control: public, max-age=14400
cf-cache-status: HIT
cf-ray: 874be4e7e98e415a-AMS
content-encoding: br
content-security-policy: default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ http://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org *.ietf.org meetecho.com *.meetecho.com
content-type: text/html; charset=utf-8
cross-origin-opener-policy: unsafe-none
date: Mon, 15 Apr 2024 12:21:13 GMT
expires: Mon, 15 Apr 2024 16:21:13 GMT
referrer-policy: strict-origin-when-cross-origin
server: cloudflare
strict-transport-security: max-age=3600; includeSubDomains
vary: Cookie, Accept-Encoding
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN

Redirect headers

alt-svc: h3=":443"; ma=86400
cache-control: max-age=3600
cf-ray: 874be4e50a19b71c-AMS
date: Mon, 15 Apr 2024 12:21:13 GMT
expires: Mon, 15 Apr 2024 13:21:13 GMT
location: https://datatracker.ietf.org/doc/html/rfc793
server: cloudflare
vary: Accept-Encoding

GET
H3 200 import.css
static.ietf.org/fonts/inter/ 17 KB
860 B 69ms
59ms Stylesheet
text/css 104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://static.ietf.org/fonts/inter/import.css
Requested by: Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc793
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 2c7ca5045d08246698e0d013365deb0503a2ef9edc7b93dc2639894611f93173

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://datatracker.ietf.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:13 GMT
content-encoding: br
cf-cache-status: HIT
last-modified: Tue, 18 Jul 2023 15:35:09 GMT
server: cloudflare
age: 63926
etag: W/"7b61f256640b0692a7f9fe4e680aac32"
vary: Accept-Encoding
content-type: text/css
access-control-allow-origin: *
cache-control: public, max-age=3600
cf-ray: 874be4ea1b7b415a-AMS
alt-svc: h3=":443"; ma=86400
expires: Mon, 15 Apr 2024 13:21:13 GMT

GET
H3 200 import.css
static.ietf.org/fonts/noto-sans-mono/ 20 KB
889 B 67ms
58ms Stylesheet
text/css 104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://static.ietf.org/fonts/noto-sans-mono/import.css
Requested by: Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc793
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: c64d8d328d884c4c61b9ebb98a4a2f9613e6de00c8d6f1d880380ba8627630a9

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://datatracker.ietf.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:13 GMT
content-encoding: br
cf-cache-status: HIT
last-modified: Tue, 18 Jul 2023 15:41:39 GMT
server: cloudflare
age: 69229
etag: W/"45c68dabf31645a5242a4febcc3fbb59"
vary: Accept-Encoding
content-type: text/css
access-control-allow-origin: *
cache-control: public, max-age=3600
cf-ray: 874be4ea1b84415a-AMS
alt-svc: h3=":443"; ma=86400
expires: Mon, 15 Apr 2024 13:21:13 GMT

GET
H3 200 document_html_referenced.css
static.ietf.org/dt/12.10.0/ietf/css/ 297 KB
43 KB 77ms
67ms Stylesheet
text/css 104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://static.ietf.org/dt/12.10.0/ietf/css/document_html_referenced.css
Requested by: Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc793
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 146911154703a835d14d1182147182e9bf7662bb464d049414ef07e4ce868988

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://datatracker.ietf.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:13 GMT
content-encoding: br
cf-cache-status: HIT
last-modified: Wed, 10 Apr 2024 17:21:52 GMT
server: cloudflare
age: 54769
etag: W/"5be1d9f9f92da9655d8568b1c0405e99"
vary: Accept-Encoding
content-type: text/css
cache-control: public, max-age=3600
cf-ray: 874be4ea1b80415a-AMS
alt-svc: h3=":443"; ma=86400
expires: Mon, 15 Apr 2024 13:21:13 GMT

GET
H3 200 document_html.js Show response
static.ietf.org/dt/12.10.0/ietf/js/ 251 KB
79 KB 117ms
108ms Script
text/javascript 104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://static.ietf.org/dt/12.10.0/ietf/js/document_html.js
Requested by: Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc793
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 6ea4799c163988a12638f8166b12f289afc76ceb3a2ede3e43d32f057e07c94c

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://datatracker.ietf.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:13 GMT
content-encoding: br
cf-cache-status: HIT
last-modified: Wed, 10 Apr 2024 17:21:54 GMT
server: cloudflare
age: 14918
etag: W/"c6b63042063965dd354d0df593b171f4"
vary: Accept-Encoding
content-type: text/javascript
cache-control: public, max-age=3600
cf-ray: 874be4ea1b83415a-AMS
alt-svc: h3=":443"; ma=86400
expires: Mon, 15 Apr 2024 13:21:13 GMT

GET
H3 200 theme.js Show response
static.ietf.org/dt/12.10.0/ietf/js/ 2 KB
856 B 72ms
63ms Script
text/javascript 104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://static.ietf.org/dt/12.10.0/ietf/js/theme.js
Requested by: Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc793
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: faf5c993b3668f3fad0144bf9a35a775e4b0e549aacbbeb03a08d8e591f8929c

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://datatracker.ietf.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:13 GMT
content-encoding: br
cf-cache-status: HIT
last-modified: Wed, 10 Apr 2024 17:21:56 GMT
server: cloudflare
age: 55139
etag: W/"63b4597b8d532fb8c3bb18d432710c1f"
vary: Accept-Encoding
content-type: text/javascript
cache-control: public, max-age=3600
cf-ray: 874be4ea1b81415a-AMS
alt-svc: h3=":443"; ma=86400
expires: Mon, 15 Apr 2024 13:21:13 GMT

GET
H3 200 matomo.js Show response
analytics.ietf.org/ 64 KB
22 KB 72ms
62ms Script
application/javascript 104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://analytics.ietf.org/matomo.js
Requested by: Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc793
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: d7fc375178c93a2fc15fd888e30170eedf4ef3d04497e7f951ab7bfe0c921693

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://datatracker.ietf.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:14 GMT
content-encoding: br
cf-cache-status: HIT
last-modified: Tue, 18 Apr 2023 09:33:05 GMT
server: cloudflare
age: 61422
etag: W/"10132-5f998fe93d640-gzip"
vary: Accept-Encoding
content-type: application/javascript
cache-control: public, max-age=86400
cf-ray: 874be4eb2c71415a-AMS
alt-svc: h3=":443"; ma=86400
expires: Tue, 16 Apr 2024 12:21:14 GMT

GET
H2 200 noto-sans-mono-latin.woff2
static.ietf.org/fonts/noto-sans-mono/ 32 KB
32 KB 230ms
99ms Font
font/woff2 2606:4700::6810:2d63
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://static.ietf.org/fonts/noto-sans-mono/noto-sans-mono-latin.woff2
Requested by: Host: static.ietf.org
URL: https://static.ietf.org/fonts/noto-sans-mono/import.css
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700::6810:2d63 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 4223382c2fb8043edd3718a9268e93e90b9e38f6077807bfdc7c2c63eab8e559

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://static.ietf.org/fonts/noto-sans-mono/import.css
Origin: https://datatracker.ietf.org
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:14 GMT
cf-cache-status: HIT
last-modified: Mon, 15 May 2023 20:04:05 GMT
server: cloudflare
age: 74296
etag: "92a9bc59413e3795344505e811024bc8"
vary: Origin, Accept-Encoding
content-type: font/woff2
access-control-allow-origin: *
cache-control: public, max-age=3600
accept-ranges: bytes
cf-ray: 874be4ec4d8c91f6-FRA
alt-svc: h3=":443"; ma=86400
content-length: 32548
expires: Mon, 15 Apr 2024 13:21:14 GMT

GET
H2 200 bootstrap-icons.3536be6d.woff2
static.ietf.org/dt/12.10.0/ietf/ 127 KB
128 KB 190ms
60ms Font
font/woff2 2606:4700::6810:2d63
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://static.ietf.org/dt/12.10.0/ietf/bootstrap-icons.3536be6d.woff2
Requested by: Host: static.ietf.org
URL: https://static.ietf.org/dt/12.10.0/ietf/css/document_html_referenced.css
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700::6810:2d63 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 476adf42b40325098fcfa8b36ab3e769186bb4f6ce6a249753e2e1a9c22bf99e

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://static.ietf.org/dt/12.10.0/ietf/css/document_html_referenced.css
Origin: https://datatracker.ietf.org
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:14 GMT
cf-cache-status: HIT
last-modified: Wed, 10 Apr 2024 17:21:52 GMT
server: cloudflare
age: 55293
etag: "cc1e5eda776be5f0ff614285c31d4892"
vary: Origin, Accept-Encoding
content-type: font/woff2
access-control-allow-origin: https://datatracker.ietf.org
cache-control: public, max-age=3600
accept-ranges: bytes
cf-ray: 874be4ec4d8b91f6-FRA
alt-svc: h3=":443"; ma=86400
content-length: 130396
expires: Mon, 15 Apr 2024 13:21:14 GMT

GET
H2 200 inter-latin.woff2
static.ietf.org/fonts/inter/ 37 KB
37 KB 187ms
57ms Font
font/woff2 2606:4700::6810:2d63
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://static.ietf.org/fonts/inter/inter-latin.woff2
Requested by: Host: static.ietf.org
URL: https://static.ietf.org/fonts/inter/import.css
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700::6810:2d63 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 450f3ba4e47ee174bd9692b396f264b907d37d2528f53911760f3d0edb785f7e

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://static.ietf.org/fonts/inter/import.css
Origin: https://datatracker.ietf.org
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:14 GMT
cf-cache-status: HIT
last-modified: Mon, 15 May 2023 20:04:04 GMT
server: cloudflare
age: 21362
etag: "e08be6d5d433944f7ad52902e4d24db5"
vary: Origin, Accept-Encoding
content-type: font/woff2
access-control-allow-origin: *
cache-control: public, max-age=3600
accept-ranges: bytes
cf-ray: 874be4ec4d8891f6-FRA
alt-svc: h3=":443"; ma=86400
content-length: 37924
expires: Mon, 15 Apr 2024 13:21:14 GMT

GET
H3

200

main.js Show response
datatracker.ietf.org/cdn-cgi/challenge-platform/h/b/scripts/jsd/bcc5fb0a8815/ Frame B1BB
Redirect Chain

https://datatracker.ietf.org/cdn-cgi/challenge-platform/scripts/jsd/main.js
https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/b/scripts/jsd/bcc5fb0a8815/main.js

8 KB
4 KB

49ms
48ms

Script
application/javascript

104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/b/scripts/jsd/bcc5fb0a8815/main.js

Requested by

Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/doc/html/rfc793

Protocol

Server

104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

56d0656bcb1298c3bc4d7eedfa7b1faed4a173c831921a9285d36623e115559c

Security Headers

Name	Value
X-Content-Type-Options	nosniff

Request headers

Accept-Language: de-DE,de;q=0.9;q=0.9
Referer
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Response headers

date: Mon, 15 Apr 2024 12:21:14 GMT
content-encoding: br
x-content-type-options: nosniff
server: cloudflare
vary: accept-encoding
content-type: application/javascript; charset=UTF-8
cache-control: max-age=14400, public
cf-ray: 874be4ebcd05415a-AMS
alt-svc: h3=":443"; ma=86400

Redirect headers

date: Mon, 15 Apr 2024 12:21:14 GMT
server: cloudflare
vary: Accept-Encoding
access-control-allow-origin: *
location: /cdn-cgi/challenge-platform/h/b/scripts/jsd/bcc5fb0a8815/main.js
cache-control: max-age=300, public
cf-ray: 874be4eb7cae415a-AMS
alt-svc: h3=":443"; ma=86400
content-length: 0

POST
H3 204 matomo.php
analytics.ietf.org/ 0
130 B 416ms
416ms Ping
text/plain 104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://analytics.ietf.org/matomo.php?action_name=RFC%20793%20-%20Transmission%20Control%20Protocol&idsite=7&rec=1&r=602760&h=14&m=21&s=14&url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fhtml%2Frfc793&_id=&_idn=1&send_image=0&_refts=0&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=1600x1200&pv_id=MoeLfH&pf_net=93&pf_srv=222&pf_tfr=79&pf_dm1=233&uadata=%7B%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Google%20Chrome%22%2C%22version%22%3A%22123.0.6312.122%22%7D%2C%7B%22brand%22%3A%22Not%3AA-Brand%22%2C%22version%22%3A%228.0.0.0%22%7D%2C%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22123.0.6312.122%22%7D%5D%2C%22mobile%22%3Afalse%2C%22model%22%3A%22%22%2C%22platform%22%3A%22Win32%22%2C%22platformVersion%22%3A%2210.0.0%22%7D
Requested by: Host: analytics.ietf.org
URL: https://analytics.ietf.org/matomo.js
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
sec-ch-ua-platform: "Win32"
Referer: https://datatracker.ietf.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Content-Type: application/x-www-form-urlencoded; charset=utf-8

Response headers

access-control-allow-origin: https://datatracker.ietf.org
date: Mon, 15 Apr 2024 12:21:14 GMT
access-control-allow-credentials: true
cf-cache-status: DYNAMIC
server: cloudflare
cf-ray: 874be4eb9cd2415a-AMS
alt-svc: h3=":443"; ma=86400

POST
H3 200 874be4e7e98e415a Show response
datatracker.ietf.org/cdn-cgi/challenge-platform/h/b/jsd/r/ Frame B1BB 0
309 B 66ms
64ms XHR
text/plain 104.16.44.99
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://datatracker.ietf.org/cdn-cgi/challenge-platform/h/b/jsd/r/874be4e7e98e415a
Requested by: Host: datatracker.ietf.org
URL: https://datatracker.ietf.org/cdn-cgi/challenge-platform/scripts/jsd/main.js
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.16.44.99 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
sec-ch-ua-platform: "Win32"
Referer
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Content-Type: application/json

Response headers

date: Mon, 15 Apr 2024 12:21:14 GMT
content-encoding: br
server: cloudflare
cf-ray: 874be4ec6dc4415a-AMS
alt-svc: h3=":443"; ma=86400
content-type: text/plain; charset=UTF-8

GET
H2 200 ietf-logo-nor-32.png
static.ietf.org/dt/12.10.0/ietf/images/ 857 B
1 KB 151ms
68ms Other
image/png 2606:4700::6810:2d63
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://static.ietf.org/dt/12.10.0/ietf/images/ietf-logo-nor-32.png
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700::6810:2d63 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 9b8ea08883a7ba9f91e7c137c89a4356d621ade48207f392fa9c77fd41d23c5f

Request headers

sec-ch-ua: "Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"
Referer: https://datatracker.ietf.org/
Accept-Language: de-DE,de;q=0.9;q=0.9
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
sec-ch-ua-platform: "Win32"

Response headers

date: Mon, 15 Apr 2024 12:21:14 GMT
cf-cache-status: HIT
last-modified: Wed, 10 Apr 2024 17:21:53 GMT
server: cloudflare
age: 55050
etag: "2bc4894b1a88b27c62d83b61c527c7af"
vary: Accept-Encoding
content-type: image/png
cache-control: public, max-age=3600
accept-ranges: bytes
cf-ray: 874be4edfd6618fd-FRA
alt-svc: h3=":443"; ma=86400
content-length: 857
expires: Mon, 15 Apr 2024 13:21:14 GMT

Verdicts & Comments Add Verdict or Comment

9 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.

1 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

			Domain/Path	Expires	Name / Value
			.ietf.org/	1970-01-21 04:38:39	Name: cf_clearance Value: ehObrkotXPQsiAme71t1wCfiyn3w.rw9wEdZGNydaUI-1713183674-1.0.1.1-MC4Sm0CEGbHbYQbLv_qvjfArIiJ5DW2be5asSDhQhxas7PkLXXP4J8plfG1sJJ4kldvNYrIoqUzqlD6Q5AAVWA

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	default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ http://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org .ietf.org meetecho.com .meetecho.com
Strict-Transport-Security	max-age=3600; includeSubDomains
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

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.

analytics.ietf.org
datatracker.ietf.org
static.ietf.org
tools.ietf.org
104.16.44.99
2606:4700::6810:2d63
146911154703a835d14d1182147182e9bf7662bb464d049414ef07e4ce868988
2c7ca5045d08246698e0d013365deb0503a2ef9edc7b93dc2639894611f93173
4223382c2fb8043edd3718a9268e93e90b9e38f6077807bfdc7c2c63eab8e559
450f3ba4e47ee174bd9692b396f264b907d37d2528f53911760f3d0edb785f7e
476adf42b40325098fcfa8b36ab3e769186bb4f6ce6a249753e2e1a9c22bf99e
56d0656bcb1298c3bc4d7eedfa7b1faed4a173c831921a9285d36623e115559c
6ea4799c163988a12638f8166b12f289afc76ceb3a2ede3e43d32f057e07c94c
9b8ea08883a7ba9f91e7c137c89a4356d621ade48207f392fa9c77fd41d23c5f
c64d8d328d884c4c61b9ebb98a4a2f9613e6de00c8d6f1d880380ba8627630a9
d6640c0b2ba8468da26276d4238e1a02061885c079493e9e97afb565ec23c976
d7fc375178c93a2fc15fd888e30170eedf4ef3d04497e7f951ab7bfe0c921693
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
faf5c993b3668f3fad0144bf9a35a775e4b0e549aacbbeb03a08d8e591f8929c

datatracker.ietf.org Open in urlscan Pro 104.16.44.99 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

14 Requests

93 %HTTPS

50 %IPv6

1 Domains

4 Subdomains

2 IPs

2 Countries

397 kBTransfer

1063 kBSize

1 Cookies

7 Outgoing links

Page URL History

Redirected requests

14 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

Request headers

Response headers

Redirect headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Redirect headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Verdicts & Comments Add Verdict or Comment

9 JavaScript Global Variables

1 Cookies

Security Headers

Indicators

datatracker.ietf.org Open in urlscan Pro
104.16.44.99 Public Scan

Screenshot
Live screenshot

Full Image

14
Requests

93 %
HTTPS

50 %
IPv6

1
Domains

4
Subdomains

2
IPs

2
Countries

397 kB
Transfer

1063 kB
Size

1
Cookies

14 HTTP transactions
0 data transactions