zenwriting.net Open in urlscan Pro
104.21.12.15 Public Scan

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URL:
https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum
Submission: On January 22 via manual (January 22nd 2023, 11:46:22 am UTC) from CA — Scanned from NZ

Summary HTTP 8 Redirects Links 2 Behaviour Indicators

Summary

This website contacted 3 IPs in 2 countries across 3 domains to perform 8 HTTP transactions. The main IP is 104.21.12.15, located in and belongs to CLOUDFLARENET, US. The main domain is zenwriting.net. The Cisco Umbrella rank of the primary domain is 424266.
TLS certificate: Issued by Cloudflare Inc ECC CA-3 on July 14th 2022. Valid for: a year.

This is the only time zenwriting.net was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
6	104.21.12.15 104.21.12.15	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	142.251.12.132 142.251.12.132	15169 (GOOGLE) (GOOGLE)
1	23.229.158.41 23.229.158.41	398101 (GO-DADDY-...) (GO-DADDY-COM-LLC)
8	3

6 104.21.12.15 (None, )

ASN13335 (CLOUDFLARENET, US)

zenwriting.net	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 142.251.12.132 (United States)

ASN15169 (GOOGLE, US)
PTR: se-in-f132.1e100.net

1.bp.blogspot.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 23.229.158.41 (United States)

ASN398101 (GO-DADDY-COM-LLC, US)
PTR: 41.158.229.23.host.secureserver.net

www.engineeringtoolbox.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
6	zenwriting.net zenwriting.net — Cisco Umbrella Rank: 424266	151 KB
1	engineeringtoolbox.com www.engineeringtoolbox.com — Cisco Umbrella Rank: 145261	41 KB
1	blogspot.com 1.bp.blogspot.com — Cisco Umbrella Rank: 10250	2 MB
8	3

	Domain	Requested by
6	zenwriting.net	zenwriting.net
1	www.engineeringtoolbox.com	zenwriting.net
1	1.bp.blogspot.com	zenwriting.net
8	3

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

Domain
www.proteckd.com
writefreely.org

Subject Issuer	Validity	Valid
sni.cloudflaressl.com Cloudflare Inc ECC CA-3	`2022-07-14` - `2023-07-14`	a year	crt.sh
misc-sni.blogspot.com GTS CA 1C3	`2023-01-02` - `2023-03-27`	3 months	crt.sh
*.engineeringtoolbox.com Go Daddy Secure Certificate Authority - G2	`2022-08-12` - `2023-09-13`	a year	crt.sh

This page contains 1 frames:

Primary Page: https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum
Frame ID: D633474EE0E4EFFB129561656B593242
Requests: 8 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Understanding how to understand the Electromagnetic Spectrum — carolpiano57

Page Statistics

8
Requests

100 %
HTTPS

0 %
IPv6

3
Domains

3
Subdomains

3
IPs

2
Countries

1744 kB
Transfer

1796 kB
Size

0
Cookies

2 Outgoing links

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

URL: https://www.proteckd.com/blogs/emf/electromagnetic-spectrum
Title: parts of em spectrum

Search URL Search Domain Scan URL

URL: https://writefreely.org/
Title: write freely

Search URL Search Domain Scan URL

Redirected requests

There were HTTP redirect chains for the following requests:

8 HTTP transactions
0 data transactions

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

GET
H2 200 Primary Request understanding-how-to-understand-the-electromagnetic-spectrum Show response
zenwriting.net/carolpiano57/ 13 KB
5 KB 1072ms
777ms Document
text/html 104.21.12.15
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 104.21.12.15 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 617b5e278b2146fc90a85a86457d8d30b0fb14253325b4e415edf961daafc7f8

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
accept-language: en-NZ,en;q=0.9

Response headers

alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
cf-cache-status: DYNAMIC
cf-ray: 78d80c4f1bd7a886-SYD
content-encoding: br
content-type: text/html; charset=utf-8
date: Sun, 22 Jan 2023 11:46:16 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=WuXYYaMxgha6P0KJPRJsbfHeHI3JnCdeM%2F%2Be69Vcz%2Bm12UEu4A0ljuFdufeEKzPq1dh22jxln9dwBReBqmNYmQXjp%2B0mDq1%2BuhTmTYvojEIHLnMZsLjKiqHPeAWQgksraA%3D%3D"}],"group":"cf-nel","max_age":604800}
server: cloudflare
x-served-by: zenwriting.net

GET
H2 200 write.css
zenwriting.net/css/ 49 KB
10 KB 757ms
757ms Stylesheet
text/css 104.21.12.15
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://zenwriting.net/css/write.css
Requested by: Host: zenwriting.net
URL: https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 104.21.12.15 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 19194360f69da1a7c5fe2e5e79f5452b3b8cbff371e3a08e95344b3c6aee258a

Request headers

accept-language: en-NZ,en;q=0.9
Referer: https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Sun, 22 Jan 2023 11:46:16 GMT
content-encoding: br
cf-cache-status: REVALIDATED
last-modified: Wed, 04 Aug 2021 20:55:21 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=5xNzwjqS%2FASvkjdAN5YwnceA9TLKidN2tVWvOMBSpFWSTmkCw1kMBQsLpKwFmrzxR8obYkpxK023IdSW225kacGSa85JUdM8%2Fg6tt1IV1Kgzbwp1wpErV7CQ%2BM4Pyw7Lng%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type: text/css; charset=utf-8
cache-control: max-age=14400
cf-ray: 78d80c53ff4fa886-SYD
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
x-served-by: zenwriting.net

GET
H2 200 electromagnetic%2Bspectrum%2B1.jpg
1.bp.blogspot.com/-xtO00NFNUQ8/XvpK9AZMnyI/AAAAAAAAJKI/1Aj2QdAo7nYr2YpNXQWvcQFzaZEZfLx6wCK4BGAsYHg/s3000/ 2 MB
2 MB 1148ms
597ms Image
image/jpeg 142.251.12.132
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://1.bp.blogspot.com/-xtO00NFNUQ8/XvpK9AZMnyI/AAAAAAAAJKI/1Aj2QdAo7nYr2YpNXQWvcQFzaZEZfLx6wCK4BGAsYHg/s3000/electromagnetic%2Bspectrum%2B1.jpg

Requested by

Host: zenwriting.net
URL: https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

142.251.12.132 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

se-in-f132.1e100.net

Software

fife /

Resource Hash

52e48368702453367bb184a9bfd3cf18fe909e2551f6584fae7ea3c63bb15d19

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

accept-language: en-NZ,en;q=0.9
Referer: https://zenwriting.net/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Sun, 22 Jan 2023 11:46:17 GMT
x-content-type-options: nosniff
server: fife
etag: "v24a5"
vary: Origin
content-type: image/jpeg
access-control-allow-origin: *
access-control-expose-headers: Content-Length
cache-control: public, max-age=86400, no-transform
content-disposition: inline;filename="electromagnetic spectrum 1.jpg"
timing-allow-origin: *
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length: 1587554
x-xss-protection: 0
expires: Mon, 23 Jan 2023 11:46:17 GMT

GET
H2 200 Fig_Lys.jpg
www.engineeringtoolbox.com/docs/documents/1929/ 41 KB
41 KB 849ms
283ms Image
image/jpeg 23.229.158.41
GO-DADDY-COM-LLC

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://www.engineeringtoolbox.com/docs/documents/1929/Fig_Lys.jpg
Requested by: Host: zenwriting.net
URL: https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum
Protocol: H2
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 23.229.158.41 , United States, ASN398101 (GO-DADDY-COM-LLC, US),
Reverse DNS: 41.158.229.23.host.secureserver.net
Software: Apache /
Resource Hash: 4146ac1913849fa76390daa74f8e42fe4fc9cfde4d1824437f8701e332e03682

Request headers

accept-language: en-NZ,en;q=0.9
Referer: https://zenwriting.net/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Sun, 22 Jan 2023 11:46:17 GMT
last-modified: Thu, 23 Mar 2017 09:38:47 GMT
server: Apache
etag: "50402fc-a3a9-54b62a4c7f7c0"
content-type: image/jpeg
cache-control: max-age=86400, public
accept-ranges: bytes
content-length: 41897

GET
H3 200 webfont.js Show response
zenwriting.net/js/ 12 KB
5 KB 759ms
759ms Script
application/javascript 104.21.12.15
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://zenwriting.net/js/webfont.js
Requested by: Host: zenwriting.net
URL: https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.21.12.15 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: b3c6ddc81a70fddba0c6a464f335810f4830c44f68051a95ae0b986955a7023e

Request headers

accept-language: en-NZ,en;q=0.9
Referer: https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Sun, 22 Jan 2023 11:46:17 GMT
content-encoding: br
cf-cache-status: REVALIDATED
last-modified: Wed, 04 Aug 2021 20:55:21 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=YjH5N%2Bw97%2FJuOJl8VJSYxvbZX2cT50shbFfVXimjvvtCfwInu4g95inzJnW6ga02bc40qcyoKb%2BPNSyfpfsDtkRtDInPRW30Y6H7qewXJcE2neuitNTLo0%2FNfsXY5Qr4NQ%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript
cache-control: max-age=14400
cf-ray: 78d80c58ce30a814-SYD
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
x-served-by: zenwriting.net

GET
H3 200 fonts.css
zenwriting.net/css/ 2 KB
846 B 751ms
751ms Stylesheet
text/css 104.21.12.15
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://zenwriting.net/css/fonts.css
Requested by: Host: zenwriting.net
URL: https://zenwriting.net/js/webfont.js
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.21.12.15 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: b1119cb35793ecd895e0cd5f1a2894fa14994c703412a9b5c8c229abcdd1ffb8

Request headers

accept-language: en-NZ,en;q=0.9
Referer: https://zenwriting.net/carolpiano57/understanding-how-to-understand-the-electromagnetic-spectrum
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Sun, 22 Jan 2023 11:46:18 GMT
content-encoding: br
cf-cache-status: REVALIDATED
last-modified: Wed, 04 Aug 2021 20:55:21 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=Ws2CiCFm7cXu9ZzjygKmgChRvFAp%2B%2BryLX3c4Dy1ohgsFswfZJoVt0z5QRgnb73DaUlum5%2FeWlwGMmx5E8Ry%2FrTPjlNd6Cxte%2BXU6MV%2FnbPNQiAphFAMvamrxbnb5oMr4g%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type: text/css; charset=utf-8
cache-control: max-age=14400
cf-ray: 78d80c5d8b3ba814-SYD
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
x-served-by: zenwriting.net

GET
H3 200 Lora-Bold.woff2
zenwriting.net/fonts/ 67 KB
68 KB 754ms
753ms Font
font/woff2 104.21.12.15
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://zenwriting.net/fonts/Lora-Bold.woff2
Requested by: Host: zenwriting.net
URL: https://zenwriting.net/css/fonts.css
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.21.12.15 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 5aad84fd548b01f6f96d44b6254b68a247e5d12800b5284c72a5310d05746ee5

Request headers

Referer: https://zenwriting.net/css/fonts.css
Origin: https://zenwriting.net
accept-language: en-NZ,en;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Sun, 22 Jan 2023 11:46:19 GMT
cf-cache-status: REVALIDATED
last-modified: Wed, 04 Aug 2021 20:55:21 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=F%2FHoeNSjAB65UyrG4GDA4VeqV1Dm8KrW9NrA9yNcl3%2FIYwvHryS34XHpsQsR3s%2F2anY39gmK3KsynuD6Q1hPdXv2A9aVeAWtP%2BGi2Ey%2FmL2L8d8MsElV7jxcHVJf8CJ78Q%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type: font/woff2
cache-control: max-age=14400
accept-ranges: bytes
cf-ray: 78d80c624895a814-SYD
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
content-length: 68656
x-served-by: zenwriting.net

GET
H3 200 Lora-Regular.woff2
zenwriting.net/fonts/ 62 KB
63 KB 1040ms
1040ms Font
font/woff2 104.21.12.15
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://zenwriting.net/fonts/Lora-Regular.woff2
Requested by: Host: zenwriting.net
URL: https://zenwriting.net/css/fonts.css
Protocol: H3
Security: QUIC, , AES_128_GCM
Server: 104.21.12.15 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 26ee6f80607aa285386fc2132073fda3639fddfb3c139d7e92490de306d2b8d1

Request headers

Referer: https://zenwriting.net/css/fonts.css
Origin: https://zenwriting.net
accept-language: en-NZ,en;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date: Sun, 22 Jan 2023 11:46:19 GMT
cf-cache-status: REVALIDATED
last-modified: Wed, 04 Aug 2021 20:55:21 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=0ti%2F4vpXluEeUoVuMdJQo08Or6JJfwSeKGpRbbeZ75pM7jppdbqvS3qa0Ia1ZwLaWb%2FQSPb0wBhjA5pdRiEK5CMbckYNHYj5SXCgjehp0swHL09tdgp%2B4dmVY%2F1J%2BwYr3A%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type: font/woff2
cache-control: max-age=14400
accept-ranges: bytes
cf-ray: 78d80c62489ba814-SYD
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
content-length: 63668
x-served-by: zenwriting.net

Verdicts & Comments Add Verdict or Comment

5 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.

0 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.

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.

1.bp.blogspot.com
www.engineeringtoolbox.com
zenwriting.net
104.21.12.15
142.251.12.132
23.229.158.41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zenwriting.net Open in urlscan Pro 104.21.12.15 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page Statistics

8 Requests

100 %HTTPS

0 %IPv6

3 Domains

3 Subdomains

3 IPs

2 Countries

1744 kBTransfer

1796 kBSize

0 Cookies

2 Outgoing links

Redirected requests

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

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

Verdicts & Comments Add Verdict or Comment

5 JavaScript Global Variables

0 Cookies

Indicators

zenwriting.net Open in urlscan Pro
104.21.12.15 Public Scan

Screenshot
Live screenshot

Full Image

8
Requests

100 %
HTTPS

0 %
IPv6

3
Domains

3
Subdomains

3
IPs

2
Countries

1744 kB
Transfer

1796 kB
Size

0
Cookies

8 HTTP transactions
0 data transactions