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2606:4700:20::681a:de0 Public Scan

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URL:
https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/
Submission: On October 09 via api (October 9th 2023, 12:27:11 am UTC) from US — Scanned from DE

Summary HTTP 31 Redirects Links 18 Behaviour Indicators

Summary

This website contacted 9 IPs in 2 countries across 7 domains to perform 31 HTTP transactions. The main IP is 2606:4700:20::681a:de0, located in United States and belongs to CLOUDFLARENET, US. The main domain is www.happycoders.eu.
TLS certificate: Issued by GTS CA 1P5 on August 17th 2023. Valid for: 3 months.

This is the only time www.happycoders.eu was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
17	2606:4700:20:... 2606:4700:20::681a:de0	13335 (CLOUDFLAR...) (CLOUDFLARENET)
4	2606:4700::68... 2606:4700::6813:b974	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2a00:1450:400... 2a00:1450:4001:831::2003	15169 (GOOGLE) (GOOGLE)
1	2606:4700::68... 2606:4700::6810:3865	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	2a00:1450:400... 2a00:1450:4001:830::200e	15169 (GOOGLE) (GOOGLE)
1	2606:4700::68... 2606:4700::6813:fd5b	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2606:4700::68... 2606:4700::6810:cb0e	13335 (CLOUDFLAR...) (CLOUDFLARENET)
4	2606:4700::68... 2606:4700::6813:fc5b	13335 (CLOUDFLAR...) (CLOUDFLARENET)
31	9

17 2606:4700:20::681a:de0 (United States)

ASN13335 (CLOUDFLARENET, US)

www.happycoders.eu	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2606:4700::6813:b974 (United States)

ASN13335 (CLOUDFLARENET, US)

happycoders.ck.page	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:831::2003 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

fonts.gstatic.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700::6810:3865 (United States)

ASN13335 (CLOUDFLARENET, US)

static.cloudflareinsights.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:830::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700::6813:fd5b (United States)

ASN13335 (CLOUDFLARENET, US)

f.convertkit.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700::6810:cb0e (United States)

ASN13335 (CLOUDFLARENET, US)

embed.filekitcdn.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2606:4700::6813:fc5b (United States)

ASN13335 (CLOUDFLARENET, US)

app.convertkit.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
17	happycoders.eu www.happycoders.eu	334 KB
5	convertkit.com f.convertkit.com — Cisco Umbrella Rank: 14854 app.convertkit.com — Cisco Umbrella Rank: 15942	18 KB
4	ck.page happycoders.ck.page	36 KB
2	google-analytics.com www.google-analytics.com — Cisco Umbrella Rank: 42	21 KB
1	filekitcdn.com embed.filekitcdn.com — Cisco Umbrella Rank: 25247	29 KB
1	cloudflareinsights.com static.cloudflareinsights.com — Cisco Umbrella Rank: 1113	7 KB
1	gstatic.com fonts.gstatic.com	13 KB
31	7

	Domain	Requested by
17	www.happycoders.eu	www.happycoders.eu static.cloudflareinsights.com
4	app.convertkit.com	f.convertkit.com
4	happycoders.ck.page	www.happycoders.eu
2	www.google-analytics.com	www.happycoders.eu
1	embed.filekitcdn.com	www.happycoders.eu
1	f.convertkit.com	happycoders.ck.page
1	static.cloudflareinsights.com	www.happycoders.eu
1	fonts.gstatic.com	www.happycoders.eu
31	8

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

Domain
en.wikipedia.org
github.com
twitter.com
www.linkedin.com
www.xing.com
www.youtube.com

Subject Issuer	Validity	Valid
happycoders.eu GTS CA 1P5	`2023-08-17` - `2023-11-15`	3 months	crt.sh
sni.cloudflaressl.com Cloudflare Inc ECC CA-3	`2023-04-11` - `2024-04-10`	a year	crt.sh
*.gstatic.com GTS CA 1C3	`2023-09-18` - `2023-12-11`	3 months	crt.sh
*.google-analytics.com GTS CA 1C3	`2023-09-18` - `2023-12-11`	3 months	crt.sh
convertkit.com Cloudflare Inc ECC CA-3	`2023-04-08` - `2024-04-07`	a year	crt.sh

This page contains 1 frames:

Primary Page: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/
Frame ID: 91E5C30FA13E3B443C360E5804A17F16
Requests: 51 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Big O Notation and Time Complexity - Easily Explainedsearch

Detected technologies

WordPress (CMS) Expand

Overall confidence: 100%
Detected patterns

<link rel=["']stylesheet["'] [^>]+/wp-(?:content|includes)/
/wp-(?:content|includes)/

Cloudflare Browser Insights (Analytics) Expand

Overall confidence: 100%
Detected patterns

static\.cloudflareinsights\.com/beacon(?:\.min)?\.js

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

google-analytics\.com/(?:ga|urchin|analytics)\.js

jQuery (JavaScript Libraries) Expand

Overall confidence: 100%
Detected patterns

jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?

Page Statistics

31
Requests

100 %
HTTPS

100 %
IPv6

7
Domains

8
Subdomains

9
IPs

2
Countries

458 kB
Transfer

1112 kB
Size

0
Cookies

18 Outgoing links

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

URL: https://en.wikipedia.org/wiki/Big_O_notation
Title: Wikipedia article

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity
Title: GitHub repository

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/simple/ConstantTimeSimpleDemo.java
Title: ConstantTimeSimpleDemo

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/TimeComplexityDemo.java
Title: TimeComplexityDemo

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/problem/ConstantTime.java
Title: ConstantTime

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/test-results.txt
Title: test-results.txt

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/simple/LinearTimeSimpleDemo.java
Title: LinearTimeSimpleDemo

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/problem/LinearTime.java
Title: LinearTime

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/simple/QuadraticTimeSimpleDemo.java
Title: QuadraticTimeSimpleDemo

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/problem/QuadraticTime.java
Title: QuadraticTime

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/simple/LogarithmicTimeSimpleDemo.java
Title: LogarithmicTimeSimpleDemo

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/problem/LogarithmicTime.java
Title: LogarithmicTime

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/simple/QuasiLinearTimeSimpleDemo.java
Title: QuasiLinearTimeSimpleDemo

Search URL Search Domain Scan URL

URL: https://github.com/SvenWoltmann/o-notation-and-time-complexity/blob/main/src/eu/happycoders/o/problem/QuasiLinearTime.java
Title: QuasiLinearTime

Search URL Search Domain Scan URL

URL: https://twitter.com/svenwoltmann

Search URL Search Domain Scan URL

URL: https://www.linkedin.com/in/sven-woltmann/

Search URL Search Domain Scan URL

URL: https://www.xing.com/profile/Sven_Woltmann

Search URL Search Domain Scan URL

URL: https://www.youtube.com/c/happycoders

Search URL Search Domain Scan URL

Redirected requests

There were HTTP redirect chains for the following requests:

31 HTTP transactions
22 data transactions

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

GET
H2 200 Primary Request / Show response
www.happycoders.eu/algorithms/big-o-notation-time-complexity/ 153 KB
34 KB 197ms
69ms Document
text/html 2606:4700:20::681a:de0
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:20::681a:de0 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare / PHP/8.1.22

Resource Hash

72b932aa6ced80d78b59baf6267541e2ec84ca9098f791ea36025eebf420855e

Security Headers

Name	Value
Strict-Transport-Security	max-age=15552000; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36
accept-language: de-DE,de;q=0.9

Response headers

alt-svc: h3=":443"; ma=86400
cf-apo-via: origin,no-cache
cf-cache-status: BYPASS
cf-edge-cache: cache,platform=wordpress
cf-ray: 81327ef3db8468fe-FRA
content-encoding: br
content-type: text/html; charset=UTF-8
date: Mon, 09 Oct 2023 00:27:06 GMT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=unJfTq%2F%2BHiJfkgSKQ537hWojW%2BlvRmvc2jd3fDHkMs3jcsXOEUYY2V6UpmlafJGx9weTm8yNhhNwuUpGNffvfsM6MtinKOQlaPgRMuH5AiIxv0l66zeGOoacg8nN01IzDxTpm%2BXXXGkb2F4w8bi2Fg%3D%3D"}],"group":"cf-nel","max_age":604800}
server: cloudflare
strict-transport-security: max-age=15552000; includeSubDomains; preload
vary: Accept-Encoding
x-content-type-options: nosniff
x-dns-prefetch-control: on
x-frame-options: SAMEORIGIN
x-litespeed-cache: hit
x-powered-by: PHP/8.1.22
x-turbo-charged-by: LiteSpeed

GET
H2 200 6b05410f8513fd1d6c64950aabfcbb98.css
www.happycoders.eu/wp-content/litespeed/css/ 244 KB
35 KB 63ms
62ms Stylesheet
text/css 2606:4700:20::681a:de0
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.happycoders.eu/wp-content/litespeed/css/6b05410f8513fd1d6c64950aabfcbb98.css?ver=b3717

Requested by

Host: www.happycoders.eu
URL: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:20::681a:de0 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

4ed1eaf31026427e14e1302676269c053bd2b732c04dd38044233ff4a2576f74

Security Headers

Name	Value
Strict-Transport-Security	max-age=15552000; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date: Mon, 09 Oct 2023 00:27:06 GMT
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: MISS
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
content-encoding: br
alt-svc: h3=":443"; ma=86400
last-modified: Thu, 28 Sep 2023 18:40:24 GMT
server: cloudflare
vary: Accept-Encoding
x-frame-options: SAMEORIGIN
content-type: text/css
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=WtBvrq8%2FnVRA6Pam%2BkRglJRDhlFiAyxi6orz3qJ4NCJwt%2FwggFz6YqcMcIeKA3Fo7Z8TMIJN3bGc4tKvmYuOZjKYs2yzPfrrtQ%2BCswANDEDRyeuvtGQX7jcyjvUBwhMGKLyOou%2F%2BeAR3M4mlnQafwg%3D%3D"}],"group":"cf-nel","max_age":604800}
cache-control: max-age=31535555, public
x-turbo-charged-by: LiteSpeed
cf-ray: 81327ef44bb868fe-FRA
expires: Tue, 08 Oct 2024 06:27:06 GMT

GET
H2 200 jquery.min.js Show response
www.happycoders.eu/wp-includes/js/jquery/ 85 KB
31 KB 23ms
22ms Script
application/javascript 2606:4700:20::681a:de0
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.happycoders.eu/wp-includes/js/jquery/jquery.min.js?ver=3.7.0

Requested by

Host: www.happycoders.eu
URL: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:20::681a:de0 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

5c93f77799d122fb5255ee24da285f9f228cc118cba11e6ceb2b6bda8cdf4164

Security Headers

Name	Value
Strict-Transport-Security	max-age=15552000; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date: Mon, 09 Oct 2023 00:27:06 GMT
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age: 3881438
content-encoding: br
alt-svc: h3=":443"; ma=86400
last-modified: Thu, 24 Aug 2023 20:08:11 GMT
server: cloudflare
vary: Accept-Encoding
x-frame-options: SAMEORIGIN
content-type: application/javascript
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=6gbFY3dAJbu78Jynkw0JVRrxlYnu3%2FxxoZgQheX5EnE8WyzpjeFPrx85ZlVv12DdzYYQxT8s6kjPyagSBDHaOJiFmEE5rCFV2TXItWc7OO59iLFYGSNpYULhFLraYO3LRh80zC7fBAtsM3mEqnrTVA%3D%3D"}],"group":"cf-nel","max_age":604800}
cache-control: max-age=31535555, public
x-turbo-charged-by: LiteSpeed
cf-ray: 81327ef45bba68fe-FRA
expires: Sat, 24 Aug 2024 08:16:28 GMT

GET
H2 200 happycoders_white.svg
www.happycoders.eu/wp-content/uploads/2018/07/ 18 KB
6 KB 21ms
20ms Image
image/svg+xml 2606:4700:20::681a:de0
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.happycoders.eu/wp-content/uploads/2018/07/happycoders_white.svg

Requested by

Host: www.happycoders.eu
URL: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:20::681a:de0 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

9199d457b9351f53fe4601dea08259b3645b4c17a63a35acd6be34067617dc2b

Security Headers

Name	Value
Strict-Transport-Security	max-age=15552000; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date: Mon, 09 Oct 2023 00:27:06 GMT
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: HIT
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
age: 28642565
content-encoding: br
alt-svc: h3=":443"; ma=86400
last-modified: Mon, 04 Jan 2021 12:50:35 GMT
server: cloudflare
vary: Accept-Encoding
x-frame-options: SAMEORIGIN
content-type: image/svg+xml
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=GAt%2BgyG5dzhbAafoICQyStdx0cEwU3LO7myh0e0sytaCQ5TGhsiBxTve94t318RA1WVVHVy4o%2BdU5%2B4C7Z93vVBbxP8kdgTFVgNCuW%2Fxoq40whF0smAqmjpAbcTyvRyeS1cngWmwJrKAKmLyo0Wosg%3D%3D"}],"group":"cf-nel","max_age":604800}
cache-control: max-age=31536000, public
x-turbo-charged-by: LiteSpeed
cf-ray: 81327ef45bbc68fe-FRA
expires: Sat, 11 Nov 2023 18:11:01 GMT

GET
H2 200 big-o-notation-time-complexity-easily-explained-v3-800x450.jpg
www.happycoders.eu/wp-content/uploads/2020/05/ 88 KB
88 KB 71ms
70ms Image
image/jpeg 2606:4700:20::681a:de0
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.happycoders.eu/wp-content/uploads/2020/05/big-o-notation-time-complexity-easily-explained-v3-800x450.jpg

Requested by

Host: www.happycoders.eu
URL: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700:20::681a:de0 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

d2777c6da2d87d4d4c99d4226a72c26d1e739a07a0aec9456cf61f2566fa4514

Security Headers

Name	Value
Strict-Transport-Security	max-age=15552000; includeSubDomains; preload
X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date: Mon, 09 Oct 2023 00:27:06 GMT
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: MISS
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
alt-svc: h3=":443"; ma=86400
content-length: 89607
last-modified: Wed, 13 Jan 2021 14:35:43 GMT
server: cloudflare
x-frame-options: SAMEORIGIN
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=fxRXDe4XVg1qNxGtHhyVVZbkmTdd2YwOevFadm1J18mBroONHFW%2BR9BwoDvUTcixTcjw7vgk5uoe5m6hpe07CFjzA8l9Nl1hxHSNlXXyUHSZUnY%2BUmxJc3ErZR76DWdykPrzbF2MP%2FcrUsQ0KWwzmg%3D%3D"}],"group":"cf-nel","max_age":604800}
content-type: image/jpeg
vary: Accept-Encoding
cache-control: max-age=31535555, public
x-turbo-charged-by: LiteSpeed
accept-ranges: bytes
cf-ray: 81327ef45bbd68fe-FRA
expires: Tue, 08 Oct 2024 06:27:06 GMT

GET
H2 200 index.js Show response
happycoders.ck.page/44f1fea9fb/ 41 KB
9 KB 194ms
159ms Script
application/javascript 2606:4700::6813:b974
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://happycoders.ck.page/44f1fea9fb/index.js
Requested by: Host: www.happycoders.eu
URL: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700::6813:b974 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash: 60faf4483e0e10a3a39c7a18b00bd15d0309a6697957a81f30117f80200f06f3

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://www.happycoders.eu/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date: Mon, 09 Oct 2023 00:27:06 GMT
content-encoding: br
cf-cache-status: REVALIDATED
cf-bgj: minify
last-modified: Wed, 16 Feb 2022 11:18:31 GMT
server: cloudflare
cf-polished: origSize=42459
etag: W/"579a8dfef1a901f0584b4e5d10ae87c5"
vary: Accept-Encoding
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: no-cache
cf-ray: 81327ef49a5f9ba4-FRA

GET
DATA 200
OK truncated Show response
/ 1 KB
0 Script
text/javascript

General

Check archive.org

Show headers Download Go to

Full URL: data:truncated
Protocol: DATA
Server: -, , ASN (),
Reverse DNS
Software: /
Resource Hash: 7f3a5aa4dcb3c0912452ca3c83baa8113278b60b4037bd1580338dca32d58d71

Request headers

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Referer
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Full URL

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f.convertkit.com/ckjs/ 60 KB
16 KB 70ms
20ms Script
application/javascript 2606:4700::6813:fd5b
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://f.convertkit.com/ckjs/ck.5.js
Requested by: Host: happycoders.ck.page
URL: https://happycoders.ck.page/44f1fea9fb/index.js
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Security: TLS 1.3, , AES_128_GCM
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Request headers

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29 KB 69ms
24ms Image
image/jpeg 2606:4700::6810:cb0e
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://embed.filekitcdn.com/e/jmhVdGmaCp95jv6nesQHe/8Hx1tGdnVsX5gbyqoUwwmv

Requested by

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URL: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6810:cb0e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

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Response headers

date: Mon, 09 Oct 2023 00:27:06 GMT
x-content-type-options: nosniff
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491 B 195ms
195ms Ping
text/plain 2606:4700:20::681a:de0
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.happycoders.eu/mfap/mfap?action_name=Big%20O%20Notation%20and%20Time%20Complexity%20-%20Easily%20Explained&idsite=7&rec=1&r=583694&h=2&m=27&s=6&url=https%3A%2F%2Fwww.happycoders.eu%2Falgorithms%2Fbig-o-notation-time-complexity%2F&_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=gOBfgX&pf_net=129&pf_srv=69&pf_tfr=7&pf_dm1=187&uadata=%7B%22fullVersionList%22%3A%5B%5D%2C%22mobile%22%3Afalse%2C%22model%22%3A%22%22%2C%22platform%22%3A%22%22%2C%22platformVersion%22%3A%22%22%7D

Requested by

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Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700:20::681a:de0 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare / PHP/8.0.18

Resource Hash

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Security Headers

Name	Value
Strict-Transport-Security	max-age=15552000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

Referer: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/
accept-language: de-DE,de;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36
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Response headers

date: Mon, 09 Oct 2023 00:27:06 GMT
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: DYNAMIC
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GET
H2 200 collect
www.google-analytics.com/ 35 B
194 B 38ms
38ms Image
image/gif 2a00:1450:4001:830::200e
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google-analytics.com/collect?v=1&_v=j101&aip=1&a=1087312080&t=pageview&_s=1&dl=https%3A%2F%2Fwww.happycoders.eu%2Falgorithms%2Fbig-o-notation-time-complexity%2F&ul=en-us&de=UTF-8&dt=Big%20O%20Notation%20and%20Time%20Complexity%20-%20Easily%20Explained&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=YIAAAAABAAAAAAAAAE~&cid=3a9dd9f3ce8b1&tid=UA-122675021-1&_gid=1755560766.1696811227&z=424683989

Requested by

Host: www.happycoders.eu
URL: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:830::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

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Security Headers

Name	Value
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Request headers

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Response headers

pragma: no-cache
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x-content-type-options: nosniff
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server: Golfe2
age: 34719
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POST
H3 204 rum Show response
www.happycoders.eu/cdn-cgi/ 0
143 B 15ms
15ms XHR
text/plain 2606:4700:20::681a:de0
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://www.happycoders.eu/cdn-cgi/rum?

Requested by

Host: static.cloudflareinsights.com
URL: https://static.cloudflareinsights.com/beacon.min.js/v8b253dfea2ab4077af8c6f58422dfbfd1689876627854

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700:20::681a:de0 , 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

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accept-language: de-DE,de;q=0.9
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36
content-type: application/json

Response headers

date: Mon, 09 Oct 2023 00:27:06 GMT
x-content-type-options: nosniff
server: cloudflare
vary: Origin
access-control-max-age: 86400
access-control-allow-methods: POST,OPTIONS
access-control-allow-origin: https://www.happycoders.eu
x-frame-options: DENY
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cf-ray: 81327ef6da6dbba9-FRA

GET
H3 200 2d3d80eb5423c827943d33ca18c72b94.jpg
www.happycoders.eu/wp-content/litespeed/avatar/ 3 KB
4 KB 20ms
19ms Image
image/jpeg 2606:4700:20::681a:de0
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.happycoders.eu/wp-content/litespeed/avatar/2d3d80eb5423c827943d33ca18c72b94.jpg?ver=1696219326

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700:20::681a:de0 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name	Value
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X-Content-Type-Options	nosniff
X-Frame-Options	SAMEORIGIN

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://www.happycoders.eu/algorithms/big-o-notation-time-complexity/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date: Mon, 09 Oct 2023 00:27:06 GMT
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
cf-cache-status: HIT
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content-length: 2994
cf-bgj: imgq:100,h2pri
last-modified: Mon, 02 Oct 2023 04:02:06 GMT
server: cloudflare
x-frame-options: SAMEORIGIN
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POST
H/1.1 200
OK visit Show response
app.convertkit.com/forms/2803778/ 7 B
1 KB 178ms
177ms Fetch
application/json 2606:4700::6813:fc5b
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://app.convertkit.com/forms/2803778/visit

Requested by

Host: f.convertkit.com
URL: https://f.convertkit.com/ckjs/ck.5.js

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6813:fc5b , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

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Request headers

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X-CKJS-Version: 6
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accept-language: de-DE,de;q=0.9
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Content-Type: application/json

Response headers

Date: Mon, 09 Oct 2023 00:27:09 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Content-Type-Options: nosniff
CF-Cache-Status: DYNAMIC
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Access-Control-Expose-Headers
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Access-Control-Max-Age: 7200
CF-Ray: 81327f043e2f4d70-FRA
X-Frame-Options: ALLOWALL

OPTIONS
H/1.1 200
OK visit
app.convertkit.com/forms/2803778/ 0
0 218ms
146ms Preflight 2606:4700::6813:fc5b
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://app.convertkit.com/forms/2803778/visit
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700::6813:fc5b , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash

Request headers

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Access-Control-Request-Method: POST
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Response headers

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Access-Control-Allow-Methods: GET, POST, PUT, OPTIONS
Access-Control-Allow-Origin: *
Access-Control-Expose-Headers
Access-Control-Max-Age: 7200
CF-Cache-Status: DYNAMIC
CF-Ray: 81327f035d844d70-FRA
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Server: cloudflare
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OPTIONS
H/1.1 200
OK visit
app.convertkit.com/forms/2803997/ 0
0 210ms
138ms Preflight 2606:4700::6813:fc5b
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL: https://app.convertkit.com/forms/2803997/visit
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_128_GCM
Server: 2606:4700::6813:fc5b , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software: cloudflare /
Resource Hash

Request headers

Accept: */*
Access-Control-Request-Headers: content-type,x-ckjs-version
Access-Control-Request-Method: POST
Origin: https://www.happycoders.eu
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Response headers

Access-Control-Allow-Headers: content-type,x-ckjs-version
Access-Control-Allow-Methods: GET, POST, PUT, OPTIONS
Access-Control-Allow-Origin: *
Access-Control-Expose-Headers
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Server: cloudflare
Vary: Accept-Encoding

POST
H/1.1 200
OK visit Show response
app.convertkit.com/forms/2803997/ 7 B
1 KB 156ms
156ms Fetch
application/json 2606:4700::6813:fc5b
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://app.convertkit.com/forms/2803997/visit

Requested by

Host: f.convertkit.com
URL: https://f.convertkit.com/ckjs/ck.5.js

Protocol

HTTP/1.1

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6813:fc5b , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

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Security Headers

Name	Value
Strict-Transport-Security	max-age=63072000; includeSubDomains
X-Content-Type-Options	nosniff
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Request headers

Accept: application/json
X-CKJS-Version: 6
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Content-Type: application/json

Response headers

Date: Mon, 09 Oct 2023 00:27:08 GMT
Strict-Transport-Security: max-age=63072000; includeSubDomains
X-Content-Type-Options: nosniff
CF-Cache-Status: DYNAMIC
X-Permitted-Cross-Domain-Policies: none
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ETag: W/"aee408847d35e44e99430f0979c3357b"
X-Download-Options: noopen
Vary: Accept, Origin, Accept-Encoding
Access-Control-Allow-Methods: POST
Content-Type: application/json; charset=utf-8
Access-Control-Allow-Origin: *
Access-Control-Expose-Headers
Cache-Control: max-age=0, private, must-revalidate
Access-Control-Max-Age: 7200
CF-Ray: 81327f0428356977-FRA
X-Frame-Options: ALLOWALL

Verdicts & Comments Add Verdict or Comment

33 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.

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=15552000; includeSubDomains; preload
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.

app.convertkit.com
embed.filekitcdn.com
f.convertkit.com
fonts.gstatic.com
happycoders.ck.page
static.cloudflareinsights.com
www.google-analytics.com
www.happycoders.eu
2606:4700:20::681a:de0
2606:4700::6810:3865
2606:4700::6810:cb0e
2606:4700::6813:b974
2606:4700::6813:fc5b
2606:4700::6813:fd5b
2a00:1450:4001:830::200e
2a00:1450:4001:831::2003
03d06c31f0ce809b4d687765eb993266770e92a4c9a3bd3d4449eb0c62168352
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www.happycoders.eu Open in urlscan Pro 2606:4700:20::681a:de0 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

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Detected technologies

Page Statistics

31 Requests

100 %HTTPS

100 %IPv6

7 Domains

8 Subdomains

9 IPs

2 Countries

458 kBTransfer

1112 kBSize

0 Cookies

18 Outgoing links

Redirected requests

31 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 22 data transactions

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www.happycoders.eu Open in urlscan Pro
2606:4700:20::681a:de0 Public Scan

Screenshot
Live screenshot

Full Image

31
Requests

100 %
HTTPS

100 %
IPv6

7
Domains

8
Subdomains

9
IPs

2
Countries

458 kB
Transfer

1112 kB
Size

0
Cookies

31 HTTP transactions
22 data transactions