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regexone.com Open in urlscan Pro
45.55.111.221  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: http://regexone.com/
Effective URL: https://regexone.com/
Submission: On May 29 via api from US — Scanned from DE
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 14 IPs in 3 countries across 11 domains to perform 28 HTTP transactions. The main IP is 45.55.111.221, located in San Francisco, United States and belongs to DIGITALOCEAN-ASN, US. The main domain is regexone.com.
TLS certificate: Issued by R3 on May 2nd 2024. Valid for: 3 months.
This is the only time regexone.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

8    45.55.111.221 (San Francisco, United States)

ASN14061 (DIGITALOCEAN-ASN, US)
regexone.com
5    104.17.25.14 (None, )

ASN13335 (CLOUDFLARENET, US)
cdnjs.cloudflare.com
1    2a00:1450:4001:81d::200a (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
fonts.googleapis.com
1    142.250.185.226 (United States)

ASN15169 (GOOGLE, US)
PTR: fra16s53-in-f2.1e100.net
pagead2.googlesyndication.com
2    192.229.221.25 (United States)

ASN15133 (EDGECAST, US)
www.paypalobjects.com
1    2a00:1450:4001:82f::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
www.googletagmanager.com
1    2a00:1450:4001:810::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
fonts.gstatic.com
1    2001:4860:4802:32::36 (United States)

ASN15169 (GOOGLE, US)
region1.google-analytics.com
2    2606:2800:234:46c:e8b:1e2f:2bd:694 (United States)

ASN15133 (EDGECAST, US)
platform.twitter.com
2    2606:2800:234:59:254c:406:2366:268c (United States)

ASN15133 (EDGECAST, US)
platform.twitter.com
1    2a03:2880:f084:d:face:b00c:0:3 (Frankfurt am Main, Germany)

ASN32934 (FACEBOOK, US)
connect.facebook.net
1    157.240.252.13 (Frankfurt am Main, Germany)

ASN32934 (FACEBOOK, US)
PTR: xx-fbcdn-shv-01-fra3.fbcdn.net
connect.facebook.net
1    2a03:2880:f177:83:face:b00c:0:25de (Frankfurt am Main, Germany)

ASN32934 (FACEBOOK, US)
www.facebook.com
1    104.244.42.136 (United States)

ASN13414 (TWITTER, US)
syndication.twitter.com
Apex Domain
Subdomains		 Transfer
8 regexone.com
regexone.com
44 KB
5 twitter.com
platform.twitter.com — Cisco Umbrella Rank: 1357
syndication.twitter.com — Cisco Umbrella Rank: 1719
31 KB
5 cloudflare.com
cdnjs.cloudflare.com — Cisco Umbrella Rank: 237
74 KB
2 facebook.net
connect.facebook.net — Cisco Umbrella Rank: 183
91 KB
2 paypalobjects.com
www.paypalobjects.com — Cisco Umbrella Rank: 2599
2 KB
1 facebook.com
www.facebook.com — Cisco Umbrella Rank: 101
1 google-analytics.com
region1.google-analytics.com — Cisco Umbrella Rank: 2533
252 B
1 gstatic.com
fonts.gstatic.com
22 KB
1 googletagmanager.com
www.googletagmanager.com — Cisco Umbrella Rank: 39
91 KB
1 googlesyndication.com
pagead2.googlesyndication.com — Cisco Umbrella Rank: 103
50 KB
1 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 33
919 B
28 11
Domain Requested by
8 regexone.com regexone.com
5 cdnjs.cloudflare.com regexone.com
4 platform.twitter.com regexone.com
platform.twitter.com
2 connect.facebook.net regexone.com
connect.facebook.net
2 www.paypalobjects.com regexone.com
1 syndication.twitter.com
1 www.facebook.com connect.facebook.net
1 region1.google-analytics.com www.googletagmanager.com
1 fonts.gstatic.com fonts.googleapis.com
1 www.googletagmanager.com regexone.com
1 pagead2.googlesyndication.com regexone.com
1 fonts.googleapis.com regexone.com
28 12

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

Domain
twitter.com
sqlbolt.com
Subject Issuer Validity Valid
regexone.com
R3		 2024-05-02 -
2024-07-31		 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
WR2		 2024-05-13 -
2024-08-05		 3 months crt.sh
*.g.doubleclick.net
WR2		 2024-05-13 -
2024-08-05		 3 months crt.sh
www.paypal.com
DigiCert SHA2 Extended Validation Server CA		 2023-10-12 -
2024-10-31		 a year crt.sh
*.google-analytics.com
WR2		 2024-05-13 -
2024-08-05		 3 months crt.sh
*.gstatic.com
WR2		 2024-05-13 -
2024-08-05		 3 months crt.sh
*.twimg.com
DigiCert Global G2 TLS RSA SHA256 2020 CA1		 2023-07-28 -
2024-07-26		 a year crt.sh
*.facebook.com
DigiCert SHA2 High Assurance Server CA		 2024-03-08 -
2024-06-06		 3 months crt.sh
syndication.twitter.com
R3		 2024-05-21 -
2024-08-19		 3 months crt.sh

This page contains 4 frames:

Primary Page: https://regexone.com/
Frame ID: BBDF9627BA9B4C1FBA784F241BD54722
Requests: 25 HTTP requests in this frame

Frame: https://platform.twitter.com/widgets/widget_iframe.2f70fb173b9000da126c79afe2098f02.html?origin=https%3A%2F%2Fregexone.com
Frame ID: EA8DCA81B6B4AE37B8263B7D91F45B7A
Requests: 1 HTTP requests in this frame

Frame: https://www.facebook.com/v2.3/plugins/like.php?action=like&app_id=221509137874176&channel=https%3A%2F%2Fstaticxx.facebook.com%2Fx%2Fconnect%2Fxd_arbiter%2F%3Fversion%3D46%23cb%3Dfb9d879696b81a627%26domain%3Dregexone.com%26is_canvas%3Dfalse%26origin%3Dhttps%253A%252F%252Fregexone.com%252Ffcd23b9105ad9539b%26relation%3Dparent.parent&container_width=1140&href=http%3A%2F%2Fregexone.com%2F&layout=button_count&locale=en_US&sdk=joey&share=true&show_faces=true
Frame ID: 3B84F93AFB7AC60066C71CC05F9E19D8
Requests: 1 HTTP requests in this frame

Frame: https://platform.twitter.com/widgets/tweet_button.2f70fb173b9000da126c79afe2098f02.en.html
Frame ID: F0171E2BFB520999EF875350D714101E
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

RegexOne - Learn Regular Expressions - Lesson 1: An Introduction, and the ABCs

Page URL History Show full URLs

  1. http://regexone.com/ HTTP 307
    https://regexone.com/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]*?bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.css
  • bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.js
Overall confidence: 100%
Detected patterns
  • paypalobjects\.com
Overall confidence: 100%
Detected patterns
  • //connect\.facebook\.([a-z]+)/[^/]*/[a-z]*\.js
Overall confidence: 100%
Detected patterns
  • googlesyndication\.com/
Overall confidence: 100%
Detected patterns
Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]+fonts\.(?:googleapis|google)\.com
Overall confidence: 100%
Detected patterns
  • googletagmanager\.com/gtag/js
Overall confidence: 100%
Detected patterns
  • /(?:([\d.])+/)?highlight(?:\.min)?\.js
Overall confidence: 100%
Detected patterns
  • //platform\.twitter\.com/widgets\.js
Overall confidence: 100%
Detected patterns
  • underscore.*\.js(?:\?ver=([\d.]+))?
Overall confidence: 100%
Detected patterns
  • /([\d.]+)/jquery(?:\.min)?\.js
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Page Statistics

28
Requests

100 %
HTTPS

57 %
IPv6

11
Domains

12
Subdomains

14
IPs

3
Countries

407 kB
Transfer

1237 kB
Size

2
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://regexone.com/ HTTP 307
    https://regexone.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

28 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
regexone.com/
Redirect Chain
  • http://regexone.com/
  • https://regexone.com/
26 KB
5 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://regexone.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
45.55.111.221 San Francisco, United States, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
nginx /
Resource Hash
83a2414cdba15e679909074d0f7b560e2db9ac70f1936256f023c9a0cd0c4fca
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
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/125.0.0.0 Safari/537.36

Response headers

content-encoding
gzip
content-type
text/html; charset=UTF-8
date
Wed, 29 May 2024 16:36:16 GMT
server
nginx
strict-transport-security
max-age=31536000; includeSubDomains
vary
Accept-Encoding
x-frame-options
SAMEORIGIN

Redirect headers

Location
https://regexone.com/
Non-Authoritative-Reason
HttpsUpgrades
bootstrap.min.css
cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/css/ 		120 KB
16 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/css/bootstrap.min.css
Requested by
Host: regexone.com
URL: https://regexone.com/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.17.25.14 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
31fbd99641c212a6ad3681a2397bde13c148c0ccd98385bce6a7eb7c81417d87
Security Headers
Name Value
Strict-Transport-Security max-age=15780000
X-Content-Type-Options nosniff

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://regexone.com/
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/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 29 May 2024 16:36:17 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
strict-transport-security
max-age=15780000
age
598175
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=86400
content-length
16223
last-modified
Mon, 04 May 2020 16:17:20 GMT
server
cloudflare
cf-cdnjs-via
cfworker/kv
etag
"5eb04010-1deac"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=LX9sOhmxVX1STHIEE4Xjk%2BjGFXcEnfnNZscNiv4IB2mwACX3c4%2BjvbpP%2BFhnOOXPR6L0jIRitPoPJTulMPFzbWZkv5JRxWXxxZN9sklOCxj%2FrNwhO%2FYMW8wPrOUnezCNACi%2FeYUL"}],"group":"cf-nel","max_age":604800}
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
public, max-age=30672000
accept-ranges
bytes
timing-allow-origin
*
cf-ray
88b7e707da7fa028-FRA
expires
Mon, 19 May 2025 16:36:17 GMT
css
fonts.googleapis.com/ 		3 KB
919 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Ruda:400,700
Requested by
Host: regexone.com
URL: https://regexone.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:81d::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
351529596540e71542992f22102bd0b9a7a9636b2cb17eaef368e6d88d6c0113
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://regexone.com/
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/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

strict-transport-security
max-age=31536000
date
Wed, 29 May 2024 16:36:17 GMT
content-encoding
gzip
x-content-type-options
nosniff
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
x-xss-protection
0
last-modified
Wed, 29 May 2024 16:36:17 GMT
server
ESF
cross-origin-opener-policy
same-origin-allow-popups
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
expires
Wed, 29 May 2024 16:36:17 GMT
main.min.css
regexone.com/cs/css/ 		12 KB
3 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://regexone.com/cs/css/main.min.css?version=61
Requested by
Host: regexone.com
URL: https://regexone.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
45.55.111.221 San Francisco, United States, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
nginx /
Resource Hash
562f7c3b0d89178a8b87cb0e1e1761e46fb5512a5e247bedd46e452dd0f546cb
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Frame-Options SAMEORIGIN

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://regexone.com/
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/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 29 May 2024 16:36:17 GMT
strict-transport-security
max-age=31536000; includeSubDomains
content-encoding
gzip
last-modified
Sun, 25 Jun 2023 18:23:11 GMT
server
nginx
etag
W/"6498860f-31b8"
vary
Accept-Encoding
x-frame-options
SAMEORIGIN
content-type
text/css
cache-control
max-age=518400
expires
Tue, 04 Jun 2024 16:36:17 GMT
favicon.png
regexone.com/cs/images/ 		535 B
777 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://regexone.com/cs/images/favicon.png
Requested by
Host: regexone.com
URL: https://regexone.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
45.55.111.221 San Francisco, United States, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
nginx /
Resource Hash
3dcf35a6a1d8535cf78954ba478027460864df934e3b8a692e56b0c0c2444a81
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Frame-Options SAMEORIGIN

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://regexone.com/
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/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 29 May 2024 16:36:17 GMT
strict-transport-security
max-age=31536000; includeSubDomains
last-modified
Sun, 25 Jun 2023 18:30:34 GMT
server
nginx
etag
"649887ca-217"
x-frame-options
SAMEORIGIN
content-type
image/png
cache-control
max-age=518400
accept-ranges
bytes
content-length
535
expires
Tue, 04 Jun 2024 16:36:17 GMT
icon_tutorial.png
regexone.com/cs/images/ 		15 KB
15 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://regexone.com/cs/images/icon_tutorial.png
Requested by
Host: regexone.com
URL: https://regexone.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
45.55.111.221 San Francisco, United States, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
nginx /
Resource Hash
d3c7598b8d0c30b1463f2ffd6678b75be1884c969b27dca4329e0511e797000e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Frame-Options SAMEORIGIN

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://regexone.com/
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/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 29 May 2024 16:36:17 GMT
strict-transport-security
max-age=31536000; includeSubDomains
last-modified
Sun, 21 May 2017 01:36:09 GMT
server
nginx
etag
"5920ef09-3a79"
x-frame-options
SAMEORIGIN
content-type
image/png
cache-control
max-age=518400
accept-ranges
bytes
content-length
14969
expires
Tue, 04 Jun 2024 16:36:17 GMT
icon_reference.png
regexone.com/cs/images/ 		14 KB
15 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://regexone.com/cs/images/icon_reference.png
Requested by
Host: regexone.com
URL: https://regexone.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
45.55.111.221 San Francisco, United States, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
nginx /
Resource Hash
54524b310bbc93a9298d5e56d26e21c8ba8b0d9773bf37501fe80abee73e76b7
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Frame-Options SAMEORIGIN

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://regexone.com/
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/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 29 May 2024 16:36:17 GMT
strict-transport-security
max-age=31536000; includeSubDomains
last-modified
Sun, 21 May 2017 01:36:09 GMT
server
nginx
etag
"5920ef09-3978"
x-frame-options
SAMEORIGIN
content-type
image/png
cache-control
max-age=518400
accept-ranges
bytes
content-length
14712
expires
Tue, 04 Jun 2024 16:36:17 GMT
task_default.png
regexone.com/cs/images/ 		130 B
371 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://regexone.com/cs/images/task_default.png
Requested by
Host: regexone.com
URL: https://regexone.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
45.55.111.221 San Francisco, United States, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
nginx /
Resource Hash
140ea3365d11e39d5428b3d3094fb36d62fd99fe2a6925cec591003722f32a58
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Frame-Options SAMEORIGIN

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://regexone.com/
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/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 29 May 2024 16:36:17 GMT
strict-transport-security
max-age=31536000; includeSubDomains
last-modified
Sun, 21 May 2017 01:36:09 GMT
server
nginx
etag
"5920ef09-82"
x-frame-options
SAMEORIGIN
content-type
image/png
cache-control
max-age=518400
accept-ranges
bytes
content-length
130
expires
Tue, 04 Jun 2024 16:36:17 GMT
adsbygoogle.js
pagead2.googlesyndication.com/pagead/js/ 		154 KB
50 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
Requested by
Host: regexone.com
URL: https://regexone.com/
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
142.250.185.226 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
fra16s53-in-f2.1e100.net
Software
cafe /
Resource Hash
92653318d7ca8fcc734d64a5834cdb087148537b361c431f19f9b7b245504a4e
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

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sec-ch-ua-platform
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Response headers

date
Wed, 29 May 2024 16:36:17 GMT
content-encoding
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expires
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btn_donate_SM.gif
www.paypalobjects.com/en_US/i/btn/ 		1 KB
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Wed, 29 May 2024 16:36:17 GMT
strict-transport-security
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pixel.gif
www.paypalobjects.com/en_US/i/scr/ 		43 B
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Request headers

sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Wed, 29 May 2024 16:36:17 GMT
strict-transport-security
max-age=63072000; includeSubDomains; preload
x-content-type-options
nosniff
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HIT
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expires
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URL: https://regexone.com/
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H3
Security
QUIC, , AES_128_GCM
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sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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date
Wed, 29 May 2024 16:36:17 GMT
content-encoding
br
x-content-type-options
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HIT
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https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Wed, 29 May 2024 16:36:17 GMT
content-encoding
br
x-content-type-options
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HIT
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server
cloudflare
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https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js
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sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Wed, 29 May 2024 16:36:17 GMT
content-encoding
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x-content-type-options
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cloudflare
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etag
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13 KB 		Script
General
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https://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.5/highlight.min.js
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Protocol
H3
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QUIC, , AES_128_GCM
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sec-ch-ua
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sec-ch-ua-mobile
?0
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sec-ch-ua-platform
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Response headers

date
Wed, 29 May 2024 16:36:17 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
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server
cloudflare
cf-cdnjs-via
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etag
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expires
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main.min.js
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5 KB 		Script
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https://regexone.com/cs/js/main.min.js?version=61
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Host: regexone.com
URL: https://regexone.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
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sec-ch-ua
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sec-ch-ua-mobile
?0
User-Agent
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sec-ch-ua-platform
"Win32"

Response headers

date
Wed, 29 May 2024 16:36:17 GMT
strict-transport-security
max-age=31536000; includeSubDomains
content-encoding
gzip
last-modified
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server
nginx
etag
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vary
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x-frame-options
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content-type
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cache-control
max-age=518400
expires
Tue, 04 Jun 2024 16:36:17 GMT
js
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91 KB 		Script
General
Check archive.org
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https://www.googletagmanager.com/gtag/js?id=G-G032FGDMYJ
Requested by
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URL: https://regexone.com/
Protocol
H2
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TLS 1.3, , AES_128_GCM
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Request headers

sec-ch-ua
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Referer
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Accept-Language
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sec-ch-ua-mobile
?0
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sec-ch-ua-platform
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Response headers

date
Wed, 29 May 2024 16:36:17 GMT
content-encoding
br
strict-transport-security
max-age=31536000; includeSubDomains
server
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vary
Accept-Encoding
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expires
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k3kfo8YQJOpFqngdaA.woff2
fonts.gstatic.com/s/ruda/v28/ 		22 KB
22 KB 		Font
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Host: fonts.googleapis.com
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H2
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Tue, 28 May 2024 14:50:57 GMT
x-content-type-options
nosniff
age
92720
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
cross-origin-resource-policy
cross-origin
alt-svc
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server
sffe
cross-origin-opener-policy
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report-to
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content-type
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bytes
timing-allow-origin
*
expires
Wed, 28 May 2025 14:50:57 GMT
collect
region1.google-analytics.com/g/ 		0
252 B 		Ping
General
Check archive.org
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Full URL
https://region1.google-analytics.com/g/collect?v=2&tid=G-G032FGDMYJ&gtm=45je45m0v9128740066za200&_p=1717000577432&gcd=13l3l3l2l1&npa=1&dma_cps=sypham&dma=1&cid=544470556.1717000578&ul=de-de&sr=1600x1200&uaa=x86&uab=64&uafvl=Google%2520Chrome%3B125.0.6422.112%7CChromium%3B125.0.6422.112%7CNot.A%252FBrand%3B24.0.0.0&uamb=0&uam=&uap=Win32&uapv=10.0.0&uaw=0&are=1&frm=0&pscdl=noapi&_s=1&sid=1717000577&sct=1&seg=0&dl=https%3A%2F%2Fregexone.com%2F&dt=RegexOne%20-%20Learn%20Regular%20Expressions%20-%20Lesson%201%3A%20An%20Introduction%2C%20and%20the%20ABCs&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=1099
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URL: https://www.googletagmanager.com/gtag/js?id=G-G032FGDMYJ
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
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Request headers

sec-ch-ua
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Accept-Language
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sec-ch-ua-mobile
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Content-Type
application/javascript; charset=utf-8
Access-Control-Allow-Origin
*
x-tw-cdn
VZ
Cache-Control
public, max-age=315360000
tweet_button.2f70fb173b9000da126c79afe2098f02.en.html
platform.twitter.com/widgets/ Frame F017 		0
0 		Document
General
Check archive.org
Download Go to
Full URL
https://platform.twitter.com/widgets/tweet_button.2f70fb173b9000da126c79afe2098f02.en.html
Requested by
Host: platform.twitter.com
URL: https://platform.twitter.com/widgets.js
Protocol
HTTP/1.1
Security
TLS 1.3, , AES_256_GCM
Server
2606:2800:234:59:254c:406:2366:268c , United States, ASN15133 (EDGECAST, US),
Reverse DNS
Software
ECS (frb/674B) /
Resource Hash

Request headers

Accept-Language
de-DE,de;q=0.9;q=0.9
Referer
https://regexone.com/
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
sec-ch-ua-mobile
?0
sec-ch-ua-platform
"Win32"

Response headers

Access-Control-Allow-Methods
GET
Access-Control-Allow-Origin
*
Age
5668210
Cache-Control
public, max-age=315360000
Content-Encoding
gzip
Content-Length
12332
Content-Type
text/html; charset=utf-8
Date
Wed, 29 May 2024 16:36:19 GMT
Etag
"e29e65db7bf0a096587728e1faacfd9c+gzip"
Last-Modified
Mon, 11 Dec 2023 17:19:48 GMT
P3P
CP="CAO DSP LAW CURa ADMa DEVa TAIa PSAa PSDa IVAa IVDa OUR BUS IND UNI COM NAV INT"
Server
ECS (frb/674B)
Server-Timing
x-cache;desc= HIT,x-tw-cdn;desc=VZ
Vary
Accept-Encoding
X-Cache
HIT
x-amz-server-side-encryption
AES256
x-tw-cdn
VZ
embeds
syndication.twitter.com/i/jot/ 		43 B
292 B 		Image
General
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Full URL
https://syndication.twitter.com/i/jot/embeds?l=%7B%22widget_origin%22%3A%22https%3A%2F%2Fregexone.com%2F%22%2C%22widget_frame%22%3Afalse%2C%22language%22%3A%22en%22%2C%22message%22%3A%22m%3Anocount%3A%22%2C%22_category_%22%3A%22tfw_client_event%22%2C%22triggered_on%22%3A1717000579123%2C%22dnt%22%3Afalse%2C%22client_version%22%3A%222615f7e52b7e0%3A1702314776716%22%2C%22format_version%22%3A1%2C%22event_namespace%22%3A%7B%22client%22%3A%22tfw%22%2C%22page%22%3A%22button%22%2C%22section%22%3A%22share%22%2C%22action%22%3A%22impression%22%7D%7D&session_id=ee5d16781b288888fd32487d9a2bffa9607286d6
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.244.42.136 , United States, ASN13414 (TWITTER, US),
Reverse DNS
Software
tsa_o /
Resource Hash
ac8778041fdb7f2e08ceb574c9a766247ea26f1a7d90fa854c4efcf4b361a957
Security Headers
Name Value
Strict-Transport-Security max-age=631138519

Request headers

sec-ch-ua
"Google Chrome";v="125", "Not:A-Brand";v="8", "Chromium";v="125"
Referer
https://regexone.com/
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/125.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

x-response-time
110
date
Wed, 29 May 2024 16:36:18 GMT
strict-transport-security
max-age=631138519
last-modified
Wed, 29 May 2024 16:36:19 GMT
server
tsa_o
vary
Origin
content-type
image/gif
x-transaction-id
78ebd43208d44fc7
cache-control
must-revalidate, max-age=600
perf
7402827104
x-connection-hash
1f02934b4dcb8b95766a1de0ffe3783a070e934af2c1ab99583afe2e638268c0
content-length
43

Verdicts & Comments Add Verdict or Comment

42 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| 0 object| 1 object| 2 object| 3 function| $ function| jQuery function| _ object| jQuery1113014100808200467108 object| hljs string| GA_PAGE_KEY boolean| FOCUS_CONTINUE_BUTTON_ON_COMPLETE boolean| DEBUG boolean| TYPE_SOLUTION_TEXT boolean| FOCUS_ON_SCROLL function| Exercise function| Problem function| ButtonHoverHelper function| initializeDocumentLoad function| gtag object| dataLayer object| problemsJson function| showFacebookButton function| showTwitterButton object| google_js_reporting_queue number| google_srt object| google_persistent_state_async object| google_logging_queue number| tmod object| google_ad_modifications object| ggeac boolean| google_measure_js_timing object| google_tag_data object| google_reactive_ads_global_state object| adsbygoogle string| google_user_agent_client_hint object| google_tag_manager object| gaGlobal object| __twttrll object| twttr object| __twttr object| FB object| __buffer

2 Cookies

Domain/Path Name / Value
.regexone.com/ Name: _ga_G032FGDMYJ
Value: GS1.1.1717000577.1.0.1717000577.0.0.0
.regexone.com/ Name: _ga
Value: GA1.1.544470556.1717000578

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
Strict-Transport-Security max-age=31536000; includeSubDomains
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.

cdnjs.cloudflare.com
connect.facebook.net
fonts.googleapis.com
fonts.gstatic.com
pagead2.googlesyndication.com
platform.twitter.com
regexone.com
region1.google-analytics.com
syndication.twitter.com
www.facebook.com
www.googletagmanager.com
www.paypalobjects.com
104.17.25.14
104.244.42.136
142.250.185.226
157.240.252.13
192.229.221.25
2001:4860:4802:32::36
2606:2800:234:46c:e8b:1e2f:2bd:694
2606:2800:234:59:254c:406:2366:268c
2a00:1450:4001:810::2003
2a00:1450:4001:81d::200a
2a00:1450:4001:82f::2008
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45.55.111.221
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