teachyourselfcs.com Open in urlscan Pro
2606:50c0:8001::153 Public Scan

Go To Rescan
Add Verdict Report

Submitted URL:
http://teachyourselfcs.com/
Effective URL:
https://teachyourselfcs.com/
Submission: On September 21 via api (September 21st 2024, 8:58:31 pm UTC) from US — Scanned from DE

Summary HTTP 30 Redirects Links 82 Behaviour Indicators

Summary

This website contacted 7 IPs in 2 countries across 7 domains to perform 30 HTTP transactions. The main IP is 2606:50c0:8001::153, located in United States and belongs to FASTLY, US. The main domain is teachyourselfcs.com.
TLS certificate: Issued by R11 on September 3rd 2024. Valid for: 3 months.

This is the only time teachyourselfcs.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
14	2606:50c0:800... 2606:50c0:8001::153	54113 (FASTLY) (FASTLY)
1	2606:4700:20:... 2606:4700:20::681a:bcb	13335 (CLOUDFLAR...) (CLOUDFLARENET)
4	2606:2800:234... 2606:2800:234:46c:e8b:1e2f:2bd:694	15133 (EDGECAST) (EDGECAST)
1 1	2606:4700:440... 2606:4700:4400::6812:25c8	13335 (CLOUDFLAR...) (CLOUDFLARENET)
1	2606:4700:440... 2606:4700:4400::ac40:97e8	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	2001:4860:480... 2001:4860:4802:38::178	15169 (GOOGLE) (GOOGLE)
7	2a00:1450:400... 2a00:1450:4001:802::2008	15169 (GOOGLE) (GOOGLE)
1	2001:4860:480... 2001:4860:4802:32::36	15169 (GOOGLE) (GOOGLE)
30	7

14 2606:50c0:8001::153 (United States)

ASN54113 (FASTLY, US)

teachyourselfcs.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700:20::681a:bcb (United States)

ASN13335 (CLOUDFLARENET, US)

npmcdn.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

4 2606:2800:234:46c:e8b:1e2f:2bd:694 (United States)

ASN15133 (EDGECAST, US)

platform.twitter.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700:4400::6812:25c8 (United States) 1 redirects

ASN13335 (CLOUDFLARENET, US)

oznova.substack.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2606:4700:4400::ac40:97e8 (United States)

ASN13335 (CLOUDFLARENET, US)

newsletter.ozwrites.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2001:4860:4802:38::178 (United States)

ASN15169 (GOOGLE, US)

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

7 2a00:1450:4001:802::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

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

1 2001:4860:4802:32::36 (United States)

ASN15169 (GOOGLE, US)

region1.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
14	teachyourselfcs.com teachyourselfcs.com	506 KB
7	googletagmanager.com www.googletagmanager.com — Cisco Umbrella Rank: 40	94 KB
4	twitter.com platform.twitter.com — Cisco Umbrella Rank: 1582	31 KB
3	google-analytics.com www.google-analytics.com — Cisco Umbrella Rank: 34 region1.google-analytics.com — Cisco Umbrella Rank: 3714	21 KB
1	ozwrites.com newsletter.ozwrites.com
1	substack.com 1 redirects oznova.substack.com	706 B
1	npmcdn.com npmcdn.com — Cisco Umbrella Rank: 29669	3 KB
30	7

	Domain	Requested by
14	teachyourselfcs.com	teachyourselfcs.com
7	www.googletagmanager.com	www.google-analytics.com teachyourselfcs.com
4	platform.twitter.com	teachyourselfcs.com platform.twitter.com
2	www.google-analytics.com	teachyourselfcs.com www.google-analytics.com
1	region1.google-analytics.com	www.googletagmanager.com
1	newsletter.ozwrites.com	teachyourselfcs.com
1	oznova.substack.com	1 redirects
1	npmcdn.com	teachyourselfcs.com
30	8

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

Domain
github.com
wiktor-rocks.github.io
t.co
twitter.com
sarabander.github.io
ocw.mit.edu
archive.org
exercism.io
composingprograms.com
www.htdp.org
www.reddit.com
csapp.cs.cmu.edu
www.nand2tetris.org
www.coursera.org
smile.amazon.com
inst.eecs.berkeley.edu
www.youtube.com
www3.cs.stonybrook.edu
timroughgarden.org
leetcode.com
cims.nyu.edu
courses.csail.mit.edu
www.amazon.com
pages.cs.wisc.edu
pdos.csail.mit.edu
www-net.cs.umass.edu
db.cs.berkeley.edu
www.redbook.io
craftinginterpreters.com
www.edx.org
www.distributed-systems.net
dsrg.pdos.csail.mit.edu
paperswelove.org
ai.berkeley.edu

Subject Issuer	Validity	Valid
teachyourselfcs.com R11	`2024-09-03` - `2024-12-02`	3 months	crt.sh
npmcdn.com WE1	`2024-09-08` - `2024-12-07`	3 months	crt.sh
*.twimg.com DigiCert Global G2 TLS RSA SHA256 2020 CA1	`2024-07-08` - `2025-07-07`	a year	crt.sh
newsletter.ozwrites.com WE1	`2024-09-06` - `2024-12-05`	3 months	crt.sh
*.google-analytics.com WR2	`2024-08-26` - `2024-11-18`	3 months	crt.sh

This page contains 4 frames:

Primary Page: https://teachyourselfcs.com/
Frame ID: B805B38DBC419CC568F24504923322DB
Requests: 27 HTTP requests in this frame

Frame: https://newsletter.ozwrites.com/embed
Frame ID: 671501BA555507714B3F2C440E559350
Requests: 1 HTTP requests in this frame

Frame: https://platform.twitter.com/widgets/widget_iframe.2f70fb173b9000da126c79afe2098f02.html?origin=https%3A%2F%2Fteachyourselfcs.com
Frame ID: E0FDDE75027B5683464E46DB291E3207
Requests: 1 HTTP requests in this frame

Frame: https://platform.twitter.com/embed/Tweet.html?dnt=false&embedId=twitter-widget-0&features=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%3D%3D&frame=false&hideCard=true&hideThread=false&id=694342874729545729&lang=en&origin=https%3A%2F%2Fteachyourselfcs.com%2F&sessionId=97ae4591ad608aa40803b90f3f2f4992d56afd51&theme=light&widgetsVersion=2615f7e52b7e0%3A1702314776716&width=550px
Frame ID: 42966FB7B504D446D9AE016CE69BC991
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Teach Yourself Computer Science

Page URL History Show full URLs

http://teachyourselfcs.com/ HTTP 307
https://teachyourselfcs.com/ Page URL

Detected technologies

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

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

Google Tag Manager (Tag Managers) Expand

Overall confidence: 100%
Detected patterns

googletagmanager\.com/gtag/js

Twitter (Widgets) Expand

Overall confidence: 100%
Detected patterns

//platform\.twitter\.com/widgets\.js

Page Statistics

30
Requests

100 %
HTTPS

100 %
IPv6

7
Domains

8
Subdomains

7
IPs

2
Countries

655 kB
Transfer

961 kB
Size

7
Cookies

82 Outgoing links

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

URL: https://github.com/keithnull/TeachYourselfCS-CN/blob/master/TeachYourselfCS-CN.md
Title: 中文翻译见此

Search URL Search Domain Scan URL

URL: https://github.com/Clemensss/TeachYourselfCS-PT/blob/master/TeachYourselfCS-PT.md
Title: Tradução em português

Search URL Search Domain Scan URL

URL: https://github.com/ilmoi/teachyourselfCS-RU/blob/master/Teach_yourself_cs-2020-RU.md
Title: Перевод на Русском

Search URL Search Domain Scan URL

URL: https://github.com/htdat/TeachYourselfCS-vi/blob/main/README.md
Title: Bản dịch tiếng Việt

Search URL Search Domain Scan URL

URL: https://github.com/jamesleeat/TeachYourselfCS-ES/blob/main/TeachYourselfCS-ES.md
Title: Traducción en Español (Latinoamerica)

Search URL Search Domain Scan URL

URL: https://github.com/minnsane/TeachYourselfCS-KR/blob/main/README.md
Title: 컴퓨터과학 스스로 학습하기

Search URL Search Domain Scan URL

URL: https://github.com/ralphplumley/TeachYourselfCS-JP/blob/main/%E6%97%A5%E6%9C%AC%E8%AA%9E.md
Title: 日本語に翻訳

Search URL Search Domain Scan URL

URL: https://github.com/tolgabp/TeachYourselfCS-TR/blob/main/TeachYourselfCS-TR.md
Title: Türkçe çevirisi

Search URL Search Domain Scan URL

URL: https://github.com/F4R4N/TeachYourselfCS-FA/blob/main/TeachYourselfCS-FA.md
Title: ﺗﺮﺟﻤﻪ ﺭﺍﻫﻨﻤﺎ ﺑﻪ ﻓﺎﺭﺳﯽ

Search URL Search Domain Scan URL

URL: https://github.com/fabiocicerchia/TeachYourselfCS-IT/blob/main/TeachYourselfCS-IT.md
Title: Traduzione in Italiano

Search URL Search Domain Scan URL

URL: https://github.com/ChocolateCharlie/TeachYourselfCS-FR/blob/main/TeachYourselfCS-FR.md
Title: Traduction en français

Search URL Search Domain Scan URL

URL: https://github.com/zweimach/TeachYourselfCS-ID
Title: Terjemahan bahasa Indonesia

Search URL Search Domain Scan URL

URL: https://github.com/ounissi-zakaria/TeachYourselfCS-AR/blob/main/TeachYourselfCS-AR.md
Title: الترجمة العربية

Search URL Search Domain Scan URL

URL: https://github.com/oleksbabieiev/TeachYourselfCS-UK/blob/master/TeachYourselfCS-UK.md
Title: Переклад українською

Search URL Search Domain Scan URL

URL: https://github.com/AhmedOmran0/TeachYourselfCS-DE/blob/main/TeachYourselfCS-DE.md
Title: Deutsche Übersetzung

Search URL Search Domain Scan URL

URL: https://github.com/tavigul/teachyourselfCS-KG/blob/main/Teach_yourself_cs-2020-KG.md
Title: Кыргызча котормо

Search URL Search Domain Scan URL

URL: https://github.com/MansurIsakov/teachyourselfCS-UZ/blob/main/teach-yourself-CS-2020-UZ.md
Title: O'zbek tiliga tarjima

Search URL Search Domain Scan URL

URL: https://wiktor-rocks.github.io/TeachYourSelfCS-PL/
Title: Polskie tłumaczenie

Search URL Search Domain Scan URL

URL: https://github.com/khalmatay/teachyourselfCS-QAZ/blob/main/Teach-yourself-cs-2020-KZ.md
Title: Қазақша аудармасы

Search URL Search Domain Scan URL

URL: https://t.co/zZrtSIzhlR
Title: pic.twitter.com/zZrtSIzhlR

Search URL Search Domain Scan URL

URL: https://twitter.com/BenedictEvans/status/694342874729545729
Title: February 2, 2016

Search URL Search Domain Scan URL

URL: https://twitter.com/jenna/status/838161631662092289

Search URL Search Domain Scan URL

URL: https://sarabander.github.io/sicp/html/index.xhtml
Title: a book

Search URL Search Domain Scan URL

URL: https://ocw.mit.edu/courses/6-001-structure-and-interpretation-of-computer-programs-spring-2005/video_galleries/video-lectures/
Title: MIT video lectures

Search URL Search Domain Scan URL

URL: https://archive.org/details/ucberkeley-webcast-PL3E89002AA9B9879E?sort=titleSorter
Title: Brian Harvey’s SICP lectures

Search URL Search Domain Scan URL

URL: http://exercism.io/
Title: exercism

Search URL Search Domain Scan URL

URL: https://composingprograms.com/
Title: Composing Programs

Search URL Search Domain Scan URL

URL: http://www.htdp.org/
Title: How to Design Programs

Search URL Search Domain Scan URL

URL: https://www.reddit.com/r/learnprogramming/wiki/faq#wiki_getting_started
Title: this one

Search URL Search Domain Scan URL

URL: http://csapp.cs.cmu.edu/3e/home.html
Title: Computer Systems: A Programmer's Perspective

Search URL Search Domain Scan URL

URL: http://csapp.cs.cmu.edu/3e/courses.html
Title: would cover

Search URL Search Domain Scan URL

URL: http://www.nand2tetris.org/
Title: the Nand2Tetris website

Search URL Search Domain Scan URL

URL: https://www.coursera.org/learn/build-a-computer
Title: a Coursera course with accompanying videos

Search URL Search Domain Scan URL

URL: https://smile.amazon.com/Computer-Organization-Design-Fifth-Architecture/dp/0124077269
Title: Computer Organization and Design

Search URL Search Domain Scan URL

URL: http://inst.eecs.berkeley.edu/~cs61c/sp15/
Title: CS61C course

Search URL Search Domain Scan URL

URL: https://archive.org/details/ucberkeley-webcast-PL-XXv-cvA_iCl2-D-FS5mk0jFF6cYSJs_
Title: on the Internet Archive

Search URL Search Domain Scan URL

URL: https://www.youtube.com/watch?v=rX0ItVEVjHc
Title: watch his CppCon talk

Search URL Search Domain Scan URL

URL: https://smile.amazon.com/Algorithm-Design-Manual-Steven-Skiena/dp/1848000693/
Title: The Algorithm Design Manual

Search URL Search Domain Scan URL

URL: https://www3.cs.stonybrook.edu/~skiena/373/videos/
Title: Skiena generously provides his online

Search URL Search Domain Scan URL

URL: https://www.coursera.org/specializations/algorithms
Title: on Coursera

Search URL Search Domain Scan URL

URL: http://timroughgarden.org/videos.html
Title: elsewhere

Search URL Search Domain Scan URL

URL: http://leetcode.com/
Title: Leetcode

Search URL Search Domain Scan URL

URL: https://smile.amazon.com/How-Solve-Mathematical-Princeton-Science/dp/069116407X/
Title: How to Solve It

Search URL Search Domain Scan URL

URL: https://cims.nyu.edu/~regev/teaching/discrete_math_fall_2005/dmbook.pdf
Title: lecture notes by László Lovász

Search URL Search Domain Scan URL

URL: https://courses.csail.mit.edu/6.042/spring17/mcs.pdf
Title: Mathematics for Computer Science

Search URL Search Domain Scan URL

URL: https://ocw.mit.edu/courses/6-042j-mathematics-for-computer-science-fall-2010/video_galleries/video-lectures/
Title: freely available

Search URL Search Domain Scan URL

URL: https://www.youtube.com/playlist?list=PLZHQObOWTQDPD3MizzM2xVFitgF8hE_ab
Title: Essence of linear algebra

Search URL Search Domain Scan URL

URL: https://www.amazon.com/Introduction-Linear-Algebra-Gilbert-Strang/dp/0980232775/
Title: book

Search URL Search Domain Scan URL

URL: https://ocw.mit.edu/courses/18-06sc-linear-algebra-fall-2011/
Title: video lectures

Search URL Search Domain Scan URL

URL: https://www.amazon.com/dp/1118063333/
Title: Operating System Concepts

Search URL Search Domain Scan URL

URL: https://www.amazon.com/dp/013359162X/
Title: Modern Operating Systems

Search URL Search Domain Scan URL

URL: http://pages.cs.wisc.edu/~remzi/OSTEP/
Title: freely available online

Search URL Search Domain Scan URL

URL: https://www.amazon.com/Lions-Commentary-Unix-John/dp/1573980137/
Title: Lion's commentary on Unix

Search URL Search Domain Scan URL

URL: https://www.amazon.com/Design-Implementation-FreeBSD-Operating-System/dp/0321968972/
Title: The Design and Implementation of the FreeBSD Operating System

Search URL Search Domain Scan URL

URL: https://www.amazon.com/Mac-OS-Internals-Systems-Approach/dp/0321278542/
Title: Mac OS X Internals

Search URL Search Domain Scan URL

URL: https://www.amazon.com/Linux-Kernel-Development-Robert-Love/dp/0672329468
Title: Linux Kernel Development

Search URL Search Domain Scan URL

URL: https://pdos.csail.mit.edu/6.828/2016/xv6.html
Title: xv6

Search URL Search Domain Scan URL

URL: http://pages.cs.wisc.edu/~remzi/OSTEP/lab-projects-xv6.pdf
Title: xv6 labs

Search URL Search Domain Scan URL

URL: https://smile.amazon.com/Computer-Networking-Top-Down-Approach-7th/dp/0133594149/
Title: Computer Networking: A Top-Down Approach

Search URL Search Domain Scan URL

URL: http://www-net.cs.umass.edu/wireshark-labs/
Title: generously provided online

Search URL Search Domain Scan URL

URL: https://www.youtube.com/playlist?list=PLoCMsyE1cvdWKsLVyf6cPwCLDIZnOj0NS
Title: Introduction to Computer Networking course

Search URL Search Domain Scan URL

URL: https://www.youtube.com/user/CS186Berkeley/videos
Title: recordings of CS 186

Search URL Search Domain Scan URL

URL: http://db.cs.berkeley.edu/papers/fntdb07-architecture.pdf
Title: Architecture of a Database System

Search URL Search Domain Scan URL

URL: http://www.redbook.io/
Title: the databases “Red Book”

Search URL Search Domain Scan URL

URL: https://smile.amazon.com/Database-Management-Systems-Raghu-Ramakrishnan/dp/0072465638/
Title: Database Management Systems

Search URL Search Domain Scan URL

URL: https://www.amazon.com/Transaction-Processing-Concepts-Techniques-Management/dp/1558601902
Title: Transaction Processing: Concepts and Techniques

Search URL Search Domain Scan URL

URL: https://www.amazon.com/Data-Reality-Perspective-Perceiving-Information/dp/1935504215
Title: Data and Reality: A Timeless Perspective on Perceiving and Managing Information in Our Imprecise World

Search URL Search Domain Scan URL

URL: https://craftinginterpreters.com/contents.html
Title: Crafting Interpreters

Search URL Search Domain Scan URL

URL: https://smile.amazon.com/Compilers-Principles-Techniques-Tools-2nd/dp/0321486811
Title: Compilers: Principles, Techniques & Tools

Search URL Search Domain Scan URL

URL: https://www.edx.org/course/compilers
Title: Alex Aiken’s, on edX

Search URL Search Domain Scan URL

URL: https://smile.amazon.com/Designing-Data-Intensive-Applications-Reliable-Maintainable-ebook/dp/B06XPJML5D/
Title: Designing Data-Intensive Applications

Search URL Search Domain Scan URL

URL: https://www.distributed-systems.net/index.php/books/ds3/
Title: Distributed Systems, 3rd Edition

Search URL Search Domain Scan URL

URL: https://www.youtube.com/watch?v=cQP8WApzIQQ&list=PLrw6a1wE39_tb2fErI4-WkMbsvGQk9_UB
Title: MIT’s 6.824

Search URL Search Domain Scan URL

URL: https://pdos.csail.mit.edu/6.824/schedule.html
Title: here

Search URL Search Domain Scan URL

URL: http://dsrg.pdos.csail.mit.edu/papers/
Title: here

Search URL Search Domain Scan URL

URL: http://paperswelove.org/
Title: Papers We Love

Search URL Search Domain Scan URL

URL: http://ai.berkeley.edu/
Title: Berkeley’s intro to AI course

Search URL Search Domain Scan URL

URL: http://inst.eecs.berkeley.edu/~cs184/fa12/onlinelectures.html
Title: Berkeley’s CS 184

Search URL Search Domain Scan URL

URL: https://www.amazon.com/Computer-Graphics-Principles-Practice-3rd/dp/0321399528
Title: Computer Graphics: Principles and Practice

Search URL Search Domain Scan URL

URL: https://github.com/open-source-society/computer-science
Title: OSS guide

Search URL Search Domain Scan URL

URL: https://twitter.com/oznova_
Title: Oz Nova

Search URL Search Domain Scan URL

URL: https://twitter.com/quackingduck
Title: Myles Byrne

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://teachyourselfcs.com/ HTTP 307
https://teachyourselfcs.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 14

https://oznova.substack.com/embed HTTP 301
https://newsletter.ozwrites.com/embed

30 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 / Show response
teachyourselfcs.com/
Redirect Chain

http://teachyourselfcs.com/
https://teachyourselfcs.com/

43 KB
16 KB

153ms
114ms

Document
text/html

2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: f9f7da16cf1b01fa4384eb35b7aed6010380e19dd11aa62ec492f180f55124c7

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Response headers

accept-ranges: bytes
access-control-allow-origin: *
age: 0
cache-control: max-age=600
content-encoding: gzip
content-length: 15520
content-type: text/html; charset=utf-8
date: Sat, 21 Sep 2024 20:58:26 GMT
etag: W/"6643f506-ac6a"
expires: Fri, 20 Sep 2024 15:46:38 GMT
last-modified: Tue, 14 May 2024 23:34:30 GMT
server: GitHub.com
vary: Accept-Encoding
via: 1.1 varnish
x-cache: HIT
x-cache-hits: 0
x-fastly-request-id: b0a5e1811fd0a0d19ff0684af6c49266dcf44708
x-github-request-id: 404D:0DC4:F311DC:F80335:66ED9686
x-proxy-cache: MISS
x-served-by: cache-fra-eddf8230044-FRA
x-timer: S1726952307.764477,VS0,VE107

Redirect headers

Location: https://teachyourselfcs.com/
Non-Authoritative-Reason: HttpsUpgrades

GET
H2 200 brochureware.css
teachyourselfcs.com/ 2 KB
890 B 20ms
19ms Stylesheet
text/css 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL: https://teachyourselfcs.com/brochureware.css
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 1f8a2839671120e4dda29d455ee1384782ed659b8ceee0f800a9cbeb0fab853f

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: 056db3ed17dda8be3c90e5b659930ff9196877e5
content-encoding: gzip
etag: W/"6643f506-68f"
age: 87
x-github-request-id: 8ED8:0DE9:7C274C7:7E91EE5:66EE36E1
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: text/css; charset=utf-8
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-served-by: cache-fra-eddf8230044-FRA
x-cache-hits: 0
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.964831,VS0,VE4
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 697
server: GitHub.com

GET
H2 200 basscss.min.css
npmcdn.com/basscss@8.0.0-beta5/css/ 10 KB
3 KB 52ms
16ms Stylesheet
text/css 2606:4700:20::681a:bcb
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://npmcdn.com/basscss@8.0.0-beta5/css/basscss.min.css

Requested by

Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

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

Reverse DNS

Software

cloudflare /

Resource Hash

37728db88a6fb86ebe8f3f1e209d934d8dbdf5fa832d7fde43bf064066dae25a

Security Headers

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

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

content-encoding: br
cf-cache-status: HIT
etag: "2678-7Oq4i3SQCLgsCkWM8JHwSCmUHiw"
age: 181262
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=kP4D0s96TUUBR8CDaWcS%2FfCTaNYuemLE0je%2BMzgOd50SPoa2hvp4IIj1H%2BK6B8o6QfdfCEWD6lfEofeeqsyWVVU9ku6AzlWV6NFIX1CR9ENROX452J2p5qGlpc89yctbpBeIk5eMJpo%3D"}],"group":"cf-nel","max_age":604800}
x-content-type-options: nosniff
date: Sat, 21 Sep 2024 20:58:27 GMT
content-type: text/css; charset=utf-8
last-modified: Mon, 08 Feb 2016 19:10:22 GMT
fly-request-id: 01J85S687XJXDC9WFC5VTAZNQN-fra
vary: Accept-Encoding
strict-transport-security: max-age=15552000; includeSubDomains; preload
cache-control: public, max-age=31536000
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
via: 1.1 fly.io
cf-ray: 8c6cf92ebb7e3665-FRA
access-control-allow-origin: *
server: cloudflare

GET
H/1.1 200
OK widgets.js Show response
platform.twitter.com/ 91 KB
28 KB 72ms
15ms Script
application/javascript 2606:2800:234:46c:e8b:1e2f:2bd:694
EDGECAST

General

Check archive.org

Show headers Download Go to

Full URL: https://platform.twitter.com/widgets.js
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: HTTP/1.1
Security: TLS 1.3, , AES_256_GCM
Server: 2606:2800:234:46c:e8b:1e2f:2bd:694 , United States, ASN15133 (EDGECAST, US),
Reverse DNS
Software: ECS (amb/6B8B) /
Resource Hash: 173460e89e6a7244218badae2016f65c48a3eae9d400802273eeca18b07336f1

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

Access-Control-Max-Age: 3000
Content-Encoding: gzip
Etag: "824beb891744db98ccbd3a456e59e0f7+gzip"
Age: 630
Access-Control-Allow-Methods: GET
Server-Timing: x-cache;desc= HIT,x-tw-cdn;desc=VZ
X-Cache: HIT
P3P: CP="CAO DSP LAW CURa ADMa DEVa TAIa PSAa PSDa IVAa IVDa OUR BUS IND UNI COM NAV INT"
Date: Sat, 21 Sep 2024 20:58:27 GMT
x-tw-cdn: VZ
Content-Type: application/javascript; charset=utf-8
Last-Modified: Mon, 11 Dec 2023 17:20:28 GMT
Vary: Accept-Encoding
Cache-Control: public, max-age=1800
Access-Control-Allow-Origin: *
Content-Length: 27597
Server: ECS (amb/6B8B)
x-amz-server-side-encryption: AES256

GET
H2 200 bilotta-tweet.png
teachyourselfcs.com/ 288 KB
288 KB 13ms
12ms Image
image/png 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/bilotta-tweet.png
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 016116178d94f6fa2f511de7f7fc2ef0db263ef3fa44e1eb18aecba5eeacd38b

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: bc101459d5f5244f10fd8844717d230af526a3df
etag: "6643f506-4805d"
age: 87
x-github-request-id: A962:0D6A:5303AC6:54A8104:66EB7B25
expires: Thu, 19 Sep 2024 01:25:17 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/png
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-cache-hits: 0
x-served-by: cache-fra-eddf8230044-FRA
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.964756,VS0,VE3
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 295005
server: GitHub.com

GET
H2 200 sicp.jpg
teachyourselfcs.com/ 17 KB
17 KB 11ms
11ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/sicp.jpg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 829a6fa4828b7db9196e517e166d33daa6f663bfafea697c14b4b073a520b8c9

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: 3a800a4ba09e6ffa45777cf380316b5a49528551
etag: "6643f506-4403"
age: 87
x-github-request-id: 48E8:0DD6:147F716:14EB9E1:66EE36DA
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-cache-hits: 0
x-served-by: cache-fra-eddf8230044-FRA
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.964693,VS0,VE2
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 17411
server: GitHub.com

GET
H2 200 csapp.jpg
teachyourselfcs.com/ 20 KB
20 KB 15ms
15ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/csapp.jpg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 0ce2e78f4633e5ec2986c2d85ed5ba0453881db6a3b6b230f6709859d12984ad

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: f9465262c55bc598cce56442a695a4432355e62f
etag: "6643f506-4f59"
age: 87
x-github-request-id: 3A6E:3A3288:2B827C:2CAAEE:66EE36DF
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-cache-hits: 0
x-served-by: cache-fra-eddf8230044-FRA
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.976796,VS0,VE2
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 20313
server: GitHub.com

GET
H2 200 skiena.jpg
teachyourselfcs.com/ 15 KB
15 KB 18ms
14ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/skiena.jpg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: b362ccc6d317a9717877e782a795bfa1a387242393e7646410a0f6084b6c6916

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: a9bfb1b6ff3997401eed43349b999dce4cdb6271
etag: "6643f506-3d41"
age: 87
x-github-request-id: 5F15:0E6A:57676C3:591B698:66EE36E0
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-served-by: cache-fra-eddf8230044-FRA
x-cache-hits: 0
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.983409,VS0,VE3
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 15681
x-origin-cache: HIT
server: GitHub.com

GET
H2 200 polya.jpg
teachyourselfcs.com/ 14 KB
15 KB 17ms
13ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/polya.jpg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 0b2892653671c6242f3e736e58fdd47a1883ceb880cb1878244d8fa235bfaf6d

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: 36c9e96b0e404cd13bd91be94af72114439ec944
etag: "6643f506-3997"
age: 87
x-github-request-id: 2B57:0DE9:7C274CB:7E91EE8:66EE36E1
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-cache-hits: 0
x-served-by: cache-fra-eddf8230044-FRA
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.983519,VS0,VE2
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 14743
server: GitHub.com

GET
H2 200 ostep.jpeg
teachyourselfcs.com/ 16 KB
16 KB 18ms
15ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/ostep.jpeg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 90b6aae6dd6c064429313e99593e6dd881c48bd0c9733e48dd8cb09da5d7e489

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: c3a5e1efaf46c12e8d2058cb02d38c139ae6406b
etag: "6643f506-4121"
age: 87
x-github-request-id: 745C:0E54:439AFC6:44EB8C4:66EE36E1
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-cache-hits: 0
x-served-by: cache-fra-eddf8230044-FRA
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.983513,VS0,VE3
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 16673
server: GitHub.com

GET
H2 200 top-down.jpg
teachyourselfcs.com/ 19 KB
20 KB 17ms
14ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/top-down.jpg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: b442aebbced51bf5925e53f319069b588cad7d3736277cdff0b6449f81d7c3e3

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: 893f09a929e2457db24ac751f0693b382b832104
etag: "6643f506-4cf9"
age: 87
x-github-request-id: D6B6:0DAF:1BF6A1F:1C87CBC:66EE36DE
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-served-by: cache-fra-eddf8230044-FRA
x-cache-hits: 0
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.983369,VS0,VE2
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 19705
x-origin-cache: HIT
server: GitHub.com

GET
H2 200 redbook.jpg
teachyourselfcs.com/ 9 KB
9 KB 16ms
13ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/redbook.jpg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 616bc2be785fd241d2d95998d86857ed9c33bf099f444c8bea554fb8d01b9e97

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: d49c9894484b4229f16698d4537868989cc05355
etag: "6643f506-2449"
age: 87
x-github-request-id: 3980:0E88:3DF9D8C:3F3AD6D:66EE36E1
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-cache-hits: 0
x-served-by: cache-fra-eddf8230044-FRA
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.983400,VS0,VE2
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 9289
server: GitHub.com

GET
H2 200 data-reality.jpg
teachyourselfcs.com/ 16 KB
16 KB 14ms
12ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/data-reality.jpg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 78785b17bcd3e9852a05a4e9fe84c7520b0eea714b7dbc1a4993e75d424292ec

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: 01c264e589fc8cdcf2a25227b280140e89dd3f2f
etag: "6643f506-409c"
age: 87
x-github-request-id: 8A55:314F6F:32EB262:33E54C5:66EE36E1
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-cache-hits: 0
x-served-by: cache-fra-eddf8230044-FRA
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.983266,VS0,VE1
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 16540
server: GitHub.com

GET
H2 200 dragon.jpg
teachyourselfcs.com/ 20 KB
21 KB 17ms
15ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/dragon.jpg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 9b4a15b9c072e15cd3321f7bc8163bafe10f6dd11034933cd6562de1ada14086

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: dd459321f8d29838050724b0abd19a98258dfe6c
etag: "6643f506-5162"
age: 87
x-github-request-id: 9758:0DAF:1BF6A1F:1C87CBB:66EE36E1
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-cache-hits: 0
x-served-by: cache-fra-eddf8230044-FRA
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.983246,VS0,VE4
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 20834
server: GitHub.com

GET
H2 200 ddia.jpg
teachyourselfcs.com/ 50 KB
50 KB 14ms
12ms Image
image/jpeg 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://teachyourselfcs.com/ddia.jpg
Requested by: Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: fa805c7fc87a744726880376120605928a0d8329d3f7f90a028267d78dc546cc

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: 472488a6b85e142e1b136cc5a9f21e196370c937
etag: "6643f506-c76f"
age: 87
x-github-request-id: 825B:314F6F:32EB262:33E54C4:66EE36E0
expires: Sat, 21 Sep 2024 03:10:49 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:26 GMT
content-type: image/jpeg
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-served-by: cache-fra-eddf8230044-FRA
x-cache-hits: 0
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952307.983226,VS0,VE2
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 51055
x-origin-cache: HIT
server: GitHub.com

GET
H3

200

embed
newsletter.ozwrites.com/ Frame 6715
Redirect Chain

https://oznova.substack.com/embed
https://newsletter.ozwrites.com/embed

0
0

300ms
248ms

Document
text/html

2606:4700:4400::ac40:97e8
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://newsletter.ozwrites.com/embed

Requested by

Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/

Protocol

Security

QUIC, , AES_128_GCM

Server

2606:4700:4400::ac40:97e8 , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare / Express

Resource Hash

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000

Request headers

Referer: https://teachyourselfcs.com/
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Response headers

cache-control: no-cache
cf-cache-status: EXPIRED
cf-ray: 8c6cf92f6898975e-FRA
content-encoding: br
content-type: text/html; charset=utf-8
date: Sat, 21 Sep 2024 20:58:27 GMT
server: cloudflare
strict-transport-security: max-age=31536000
vary: Accept-Encoding
x-cluster: substack
x-deploy: 214708ec66
x-powered-by: Express
x-served-by: Substack
x-service: web
x-sub: oznova

Redirect headers

age: 303
cache-control: no-cache
cf-cache-status: HIT
cf-ray: 8c6cf92ecbf8d352-FRA
content-length: 130
content-type: text/html; charset=utf-8
date: Sat, 21 Sep 2024 20:58:27 GMT
location: https://newsletter.ozwrites.com/embed
server: cloudflare
strict-transport-security: max-age=31536000
vary: Accept, Accept-Encoding
x-cluster: substack
x-deploy: 214708ec66
x-powered-by: Express
x-served-by: Substack
x-service: web

GET
H2 200 analytics.js Show response
www.google-analytics.com/ 52 KB
21 KB 37ms
7ms Script
text/javascript 2001:4860:4802:38::178
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google-analytics.com/analytics.js

Requested by

Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2001:4860:4802:38::178 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

de36e50194320a7d3ef1ace9bd34a875a8bd458b253c061979dd628e9bf49afd

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains; preload
X-Content-Type-Options	nosniff

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

strict-transport-security: max-age=31536000; includeSubDomains; preload
cache-control: public, max-age=7200
content-encoding: gzip
age: 5530
cross-origin-resource-policy: cross-origin
x-content-type-options: nosniff
expires: Sat, 21 Sep 2024 21:26:17 GMT
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 20994
date: Sat, 21 Sep 2024 19:26:17 GMT
last-modified: Tue, 12 Dec 2023 18:09:08 GMT
content-type: text/javascript
server: Golfe2
vary: Accept-Encoding

GET
H/1.1 200
OK widget_iframe.2f70fb173b9000da126c79afe2098f02.html
platform.twitter.com/widgets/ Frame E0FD 0
0 52ms
14ms Document
text/html 2606:2800:234:46c:e8b:1e2f:2bd:694
EDGECAST

General

Check archive.org

Show headers Download Go to

Full URL: https://platform.twitter.com/widgets/widget_iframe.2f70fb173b9000da126c79afe2098f02.html?origin=https%3A%2F%2Fteachyourselfcs.com
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: 2606:2800:234:46c:e8b:1e2f:2bd:694 , United States, ASN15133 (EDGECAST, US),
Reverse DNS
Software: ECS (amb/6BB1) /
Resource Hash

Request headers

Referer: https://teachyourselfcs.com/
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Response headers

Access-Control-Allow-Methods: GET
Access-Control-Allow-Origin: *
Age: 15603930
Cache-Control: public, max-age=315360000
Content-Encoding: gzip
Content-Length: 105429
Content-Type: text/html; charset=utf-8
Date: Sat, 21 Sep 2024 20:58:27 GMT
Etag: "81267302efdfb3e4524a22631a8fc99e+gzip"
Last-Modified: Mon, 11 Dec 2023 17:19:49 GMT
P3P: CP="CAO DSP LAW CURa ADMa DEVa TAIa PSAa PSDa IVAa IVDa OUR BUS IND UNI COM NAV INT"
Server: ECS (amb/6BB1)
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

POST
H2 200 collect Show response
www.google-analytics.com/j/ 15 B
223 B 16ms
15ms XHR
text/plain 2001:4860:4802:38::178
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google-analytics.com/j/collect?v=1&_v=j101&a=1007079548&t=pageview&_s=1&dl=https%3A%2F%2Fteachyourselfcs.com%2F&ul=de-de&de=UTF-8&dt=Teach%20Yourself%20Computer%20Science&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=IEBAAEABAAAAACAAI~&jid=1562123310&gjid=1997851435&cid=2121212864.1726952307&tid=UA-71655366-3&_gid=2088123488.1726952307&_r=1&_slc=1&z=1987892680

Requested by

Host: www.google-analytics.com
URL: https://www.google-analytics.com/analytics.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2001:4860:4802:38::178 , United States, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

1c3938b612eae86f77c690b0348b11574c203013c5dbd0c6d797b1a39d997fc9

Security Headers

Name	Value
X-Content-Type-Options	nosniff

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Content-Type: text/plain
Referer: https://teachyourselfcs.com/

Response headers

cache-control: no-cache, no-store, must-revalidate
pragma: no-cache
cross-origin-resource-policy: cross-origin
access-control-allow-credentials: true
x-content-type-options: nosniff
expires: Fri, 01 Jan 1990 00:00:00 GMT
access-control-allow-origin: https://teachyourselfcs.com
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 15
date: Sat, 21 Sep 2024 20:58:27 GMT
last-modified: Sun, 17 May 1998 03:00:00 GMT
content-type: text/plain
server: Golfe2

GET
H2 200 js Show response
www.googletagmanager.com/gtag/ 264 KB
93 KB 62ms
33ms Script
application/javascript 2a00:1450:4001:802::2008
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.googletagmanager.com/gtag/js?id=G-DQM9PHYFKP&cx=c&_slc=1

Requested by

Host: www.google-analytics.com
URL: https://www.google-analytics.com/analytics.js

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:802::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

a9a370e5d41fe8d92acfeb31666c8c91995598fe65ca628afaa9cc3db9689b07

Security Headers

Name	Value
Strict-Transport-Security	max-age=31536000; includeSubDomains
X-Xss-Protection	0

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

strict-transport-security: max-age=31536000; includeSubDomains
cache-control: private, max-age=900
content-encoding: br
cross-origin-resource-policy: cross-origin
access-control-allow-credentials: true
expires: Sat, 21 Sep 2024 20:58:27 GMT
access-control-allow-origin: *
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 95166
date: Sat, 21 Sep 2024 20:58:27 GMT
x-xss-protection: 0
content-type: application/javascript; charset=UTF-8
vary: Accept-Encoding
server: Google Tag Manager
access-control-allow-headers: Cache-Control

GET
H2 200 a
www.googletagmanager.com/ 0
59 B 16ms
14ms Image
text/html 2a00:1450:4001:802::2008
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.googletagmanager.com/a?id=G-DQM9PHYFKP&v=3&t=t&pid=1663608240&cv=2&rv=49j0&tc=12&tag_exp=0&es=1&e=gtm.init_consent&eid=-1&z=0

Requested by

Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:802::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
X-Xss-Protection	0

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 0
date: Sat, 21 Sep 2024 20:58:27 GMT
x-xss-protection: 0
content-type: text/html
server: Google Tag Manager

GET
H2 200 a
www.googletagmanager.com/ 0
49 B 16ms
15ms Image
text/html 2a00:1450:4001:802::2008
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.googletagmanager.com/a?id=G-DQM9PHYFKP&v=3&t=t&pid=1663608240&cv=2&rv=49j0&tc=12&tag_exp=0&es=1&e=gtm.init&eid=0&tr=1ogtgasend.1ogtreferralexclusion.1ogtsessiontimeout.1ogt1pdatav2.1ccdgafirst.1setproductsettings.1ogtgooglesignals.1ccdgaregscope.1ccdconversionmarking.1ccdautoredact.1ccdgalast&ti=2ogtgasend.2ogtreferralexclusion.2ogtsessiontimeout.2ogt1pdatav2.2ccdgafirst.2setproductsettings.2ogtgooglesignals.2ccdgaregscope.2ccdconversionmarking.2ccdautoredact.2ccdgalast&z=0

Requested by

Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:802::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
X-Xss-Protection	0

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 0
date: Sat, 21 Sep 2024 20:58:27 GMT
x-xss-protection: 0
content-type: text/html
server: Google Tag Manager

GET
H2 200 a
www.googletagmanager.com/ 0
49 B 16ms
16ms Image
text/html 2a00:1450:4001:802::2008
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.googletagmanager.com/a?id=G-DQM9PHYFKP&v=3&t=t&pid=1663608240&cv=2&rv=49j0&tc=12&tag_exp=0&es=1&e=gtm.js&eid=1&tr=1gct&ti=1gct&z=0

Requested by

Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:802::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
X-Xss-Protection	0

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 0
date: Sat, 21 Sep 2024 20:58:27 GMT
x-xss-protection: 0
content-type: text/html
server: Google Tag Manager

GET
H2 200 a
www.googletagmanager.com/ 0
49 B 16ms
16ms Image
text/html 2a00:1450:4001:802::2008
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.googletagmanager.com/a?id=G-DQM9PHYFKP&v=3&t=t&pid=1663608240&cv=2&rv=49j0&tc=12&tag_exp=0&es=1&e=gtag.config&eid=2&u=AAAAAAAI&epr=1G&z=0

Requested by

Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:802::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
X-Xss-Protection	0

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 0
date: Sat, 21 Sep 2024 20:58:27 GMT
x-xss-protection: 0
content-type: text/html
server: Google Tag Manager

POST
H2 204 collect
region1.google-analytics.com/g/ 0
0 42ms
14ms Fetch
text/plain 2001:4860:4802:32::36
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL: https://region1.google-analytics.com/g/collect?v=2&tid=G-DQM9PHYFKP&gtm=45je49j0v9123105542za200&_p=1726952307109&gcd=13l3l3l2l2l1&npa=0&dma_cps=syphamo&dma=1&tag_exp=0&ul=de-de&sr=1600x1200&cid=2121212864.1726952307&ir=1&uaa=&uab=&uafvl=&uamb=0&uam=&uap=&uapv=&uaw=0&are=1&frm=0&pscdl=noapi&_eu=EBAI&_s=1&dl=https%3A%2F%2Fteachyourselfcs.com%2F&dt=Teach%20Yourself%20Computer%20Science&sid=1726952307&sct=1&seg=0&en=page_view&_fv=1&_ss=1&_ee=1&tfd=505
Requested by: Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=G-DQM9PHYFKP&cx=c&_slc=1
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2001:4860:4802:32::36 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
Software: Golfe2 /
Resource Hash

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

cache-control: no-cache, no-store, must-revalidate
pragma: no-cache
cross-origin-resource-policy: cross-origin
access-control-allow-credentials: true
expires: Fri, 01 Jan 1990 00:00:00 GMT
access-control-allow-origin: https://teachyourselfcs.com
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 0
date: Sat, 21 Sep 2024 20:58:27 GMT
content-type: text/plain
server: Golfe2

GET
H2 200 a
www.googletagmanager.com/ 0
49 B 15ms
15ms Image
text/html 2a00:1450:4001:802::2008
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.googletagmanager.com/a?id=G-DQM9PHYFKP&v=3&t=t&pid=1663608240&cv=2&rv=49j0&tc=12&tag_exp=0&es=1&e=*&eid=3&u=AAAAAAAIAAAAAACAAAE&h=Ag&epr=1G&z=0

Requested by

Host: teachyourselfcs.com
URL: https://teachyourselfcs.com/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2a00:1450:4001:802::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
X-Xss-Protection	0

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 0
date: Sat, 21 Sep 2024 20:58:27 GMT
x-xss-protection: 0
content-type: text/html
server: Google Tag Manager

GET
H/1.1 200
OK tweet.d7aeb21a88e025d2ea5f5431a103f586.js Show response
platform.twitter.com/js/ 8 KB
3 KB 36ms
15ms Script
application/javascript 2606:2800:234:46c:e8b:1e2f:2bd:694
EDGECAST

General

Check archive.org

Show headers Download Go to

Full URL: https://platform.twitter.com/js/tweet.d7aeb21a88e025d2ea5f5431a103f586.js
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: 2606:2800:234:46c:e8b:1e2f:2bd:694 , United States, ASN15133 (EDGECAST, US),
Reverse DNS
Software: ECS (amb/6BA8) /
Resource Hash: b69773dcbb510737999108690126d5326d529d8aa853492f94464fc0826adb59

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

Content-Encoding: gzip
Etag: "1836187c57e3f0873abebe6985a39f5a+gzip"
Age: 15604190
Access-Control-Allow-Methods: GET
Server-Timing: x-cache;desc= HIT,x-tw-cdn;desc=VZ
X-Cache: HIT
P3P: CP="CAO DSP LAW CURa ADMa DEVa TAIa PSAa PSDa IVAa IVDa OUR BUS IND UNI COM NAV INT"
Date: Sat, 21 Sep 2024 20:58:27 GMT
x-tw-cdn: VZ
Content-Type: application/javascript; charset=utf-8
Last-Modified: Mon, 11 Dec 2023 17:19:47 GMT
Vary: Accept-Encoding
Cache-Control: public, max-age=315360000
Access-Control-Allow-Origin: *
Content-Length: 2725
Server: ECS (amb/6BA8)
x-amz-server-side-encryption: AES256

GET
H/1.1 200
OK Tweet.html
platform.twitter.com/embed/ Frame 4296 0
0 14ms
14ms Document
text/html 2606:2800:234:46c:e8b:1e2f:2bd:694
EDGECAST

General

Check archive.org

Show headers Download Go to

Full URL: https://platform.twitter.com/embed/Tweet.html?dnt=false&embedId=twitter-widget-0&features=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%3D%3D&frame=false&hideCard=true&hideThread=false&id=694342874729545729&lang=en&origin=https%3A%2F%2Fteachyourselfcs.com%2F&sessionId=97ae4591ad608aa40803b90f3f2f4992d56afd51&theme=light&widgetsVersion=2615f7e52b7e0%3A1702314776716&width=550px
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: 2606:2800:234:46c:e8b:1e2f:2bd:694 , United States, ASN15133 (EDGECAST, US),
Reverse DNS
Software: ECS (amb/6B84) /
Resource Hash

Request headers

Referer: https://teachyourselfcs.com/
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Response headers

Accept-Ranges: bytes
Access-Control-Allow-Methods: GET
Access-Control-Allow-Origin: *
Age: 599
Cache-Control: public, max-age=1800
Content-Length: 345
Content-Type: text/html; charset=utf-8
Date: Sat, 21 Sep 2024 20:58:27 GMT
Etag: "0d60462b44e0e0c34f053fa13e86675d"
Last-Modified: Thu, 05 Sep 2024 16:06:30 GMT
P3P: CP="CAO DSP LAW CURa ADMa DEVa TAIa PSAa PSDa IVAa IVDa OUR BUS IND UNI COM NAV INT"
Server: ECS (amb/6B84)
Server-Timing: x-cache;desc= HIT,x-tw-cdn;desc=VZ
X-Cache: HIT
x-amz-server-side-encryption: AES256
x-tw-cdn: VZ

GET
H2 200 favicon.ico
teachyourselfcs.com/ 6 KB
2 KB 10ms
10ms Other
image/vnd.microsoft.icon 2606:50c0:8001::153
FASTLY

General

Check archive.org

Show headers Download Go to

Full URL: https://teachyourselfcs.com/favicon.ico
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2606:50c0:8001::153 , United States, ASN54113 (FASTLY, US),
Reverse DNS
Software: GitHub.com /
Resource Hash: 2f90e713a07fc4ec04e44185b011f83fc95a578f07590291f88f7ebca1f29855

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

x-fastly-request-id: 6c757a261226b4aed61f107c82cb36ba466bbff9
content-encoding: gzip
etag: W/"6643f506-1976"
age: 84
x-github-request-id: 7103:314F6F:32EB2F7:33E5561:66EE36E1
expires: Sat, 21 Sep 2024 03:10:50 GMT
x-proxy-cache: MISS
x-cache: HIT
date: Sat, 21 Sep 2024 20:58:27 GMT
content-type: image/vnd.microsoft.icon
last-modified: Tue, 14 May 2024 23:34:30 GMT
x-served-by: cache-fra-eddf8230044-FRA
x-cache-hits: 0
vary: Accept-Encoding
cache-control: max-age=600
x-timer: S1726952308.969516,VS0,VE2
via: 1.1 varnish
accept-ranges: bytes
access-control-allow-origin: *
content-length: 1287
x-origin-cache: HIT
server: GitHub.com

GET
H3 200 a
www.googletagmanager.com/ 0
11 B 16ms
15ms Image
text/html 2a00:1450:4001:802::2008
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.googletagmanager.com/a?id=G-DQM9PHYFKP&v=3&t=t&pid=1663608240&cv=2&rv=49j0&tc=12&tag_exp=0&es=1&e=gtm.load&eid=5&u=AgAAAAAIAAAAACCAAAE&ut=Ag&h=Ag&z=0

Protocol

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:802::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Google Tag Manager /

Resource Hash

e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Security Headers

Name	Value
X-Xss-Protection	0

Request headers

User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Referer: https://teachyourselfcs.com/

Response headers

alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
content-length: 0
date: Sat, 21 Sep 2024 20:58:28 GMT
x-xss-protection: 0
content-type: text/html
server: Google Tag Manager

Verdicts & Comments Add Verdict or Comment

15 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.

7 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
.substack.com/	1970-01-20 23:42:34	Name: __cf_bm Value: E02wfUq4xgln1RYA2HmIXaRdisCMSYHDQ9kWHj.DW88-1726952307-1.0.1.1-RQEZ7dAxhsQUYqX.t4_Q5yvjS.jvr6ESNmgKjOwinI8OHjIkt40lclprcYUNyylIR827jQlnnMr4rSKt67OUzA
.teachyourselfcs.com/	1970-01-21 09:18:32	Name: _ga Value: GA1.2.2121212864.1726952307
.teachyourselfcs.com/	1970-01-20 23:43:58	Name: _gid Value: GA1.2.2088123488.1726952307
.teachyourselfcs.com/	1970-01-20 23:42:32	Name: _gat Value: 1
.teachyourselfcs.com/	1970-01-21 09:18:32	Name: _ga_DQM9PHYFKP Value: GS1.2.1726952307.1.0.1726952307.0.0.0
newsletter.ozwrites.com/	1970-01-20 23:52:37	Name: AWSALBTGCORS Value: wko9kSIN0b5DTPIYmckEkXQ5f7GmN7neRdbpQ0eGqyNmOpPMdppvn4VJr4EG6orXeJMltYkH3npnCqatkInyB+//jLyyB9/IC0JVU/DavVGbAfyRGUbJxa3icJFsk7SLftPxQjwE9fnmXT0Rcr44MaWM9T9Bus+zqL+492hBjYc+
.newsletter.ozwrites.com/	1970-01-20 23:42:34	Name: __cf_bm Value: 2yE19P611QfU2T_Xq6Yy2.p_adwQRz7UirBXFPZypA4-1726952307-1.0.1.1-93GAb5556YjKmNbryyL4j.l0I7TTFuy_hgTQOeTC2In.FLG4zY6DiC1YmJADSPu5yH6K2.Hlb40ldi5Bljd_iw

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.

newsletter.ozwrites.com
npmcdn.com
oznova.substack.com
platform.twitter.com
region1.google-analytics.com
teachyourselfcs.com
www.google-analytics.com
www.googletagmanager.com
2001:4860:4802:32::36
2001:4860:4802:38::178
2606:2800:234:46c:e8b:1e2f:2bd:694
2606:4700:20::681a:bcb
2606:4700:4400::6812:25c8
2606:4700:4400::ac40:97e8
2606:50c0:8001::153
2a00:1450:4001:802::2008
016116178d94f6fa2f511de7f7fc2ef0db263ef3fa44e1eb18aecba5eeacd38b
0b2892653671c6242f3e736e58fdd47a1883ceb880cb1878244d8fa235bfaf6d
0ce2e78f4633e5ec2986c2d85ed5ba0453881db6a3b6b230f6709859d12984ad
173460e89e6a7244218badae2016f65c48a3eae9d400802273eeca18b07336f1
1c3938b612eae86f77c690b0348b11574c203013c5dbd0c6d797b1a39d997fc9
1f8a2839671120e4dda29d455ee1384782ed659b8ceee0f800a9cbeb0fab853f
2f90e713a07fc4ec04e44185b011f83fc95a578f07590291f88f7ebca1f29855
37728db88a6fb86ebe8f3f1e209d934d8dbdf5fa832d7fde43bf064066dae25a
616bc2be785fd241d2d95998d86857ed9c33bf099f444c8bea554fb8d01b9e97
78785b17bcd3e9852a05a4e9fe84c7520b0eea714b7dbc1a4993e75d424292ec
829a6fa4828b7db9196e517e166d33daa6f663bfafea697c14b4b073a520b8c9
90b6aae6dd6c064429313e99593e6dd881c48bd0c9733e48dd8cb09da5d7e489
9b4a15b9c072e15cd3321f7bc8163bafe10f6dd11034933cd6562de1ada14086
a9a370e5d41fe8d92acfeb31666c8c91995598fe65ca628afaa9cc3db9689b07
b362ccc6d317a9717877e782a795bfa1a387242393e7646410a0f6084b6c6916
b442aebbced51bf5925e53f319069b588cad7d3736277cdff0b6449f81d7c3e3
b69773dcbb510737999108690126d5326d529d8aa853492f94464fc0826adb59
de36e50194320a7d3ef1ace9bd34a875a8bd458b253c061979dd628e9bf49afd
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
f9f7da16cf1b01fa4384eb35b7aed6010380e19dd11aa62ec492f180f55124c7
fa805c7fc87a744726880376120605928a0d8329d3f7f90a028267d78dc546cc

teachyourselfcs.com Open in urlscan Pro 2606:50c0:8001::153 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

30 Requests

100 %HTTPS

100 %IPv6

7 Domains

8 Subdomains

7 IPs

2 Countries

655 kBTransfer

961 kBSize

7 Cookies

82 Outgoing links

Page URL History

Redirected requests

30 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

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

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

teachyourselfcs.com Open in urlscan Pro
2606:50c0:8001::153 Public Scan

Screenshot
Live screenshot

Full Image

30
Requests

100 %
HTTPS

100 %
IPv6

7
Domains

8
Subdomains

7
IPs

2
Countries

655 kB
Transfer

961 kB
Size

7
Cookies

30 HTTP transactions
0 data transactions