cs50.tv


Tags Whois Backlink & Rankings Speed Safety Headers Similar Sites Keywords H Tags
Tags Whois Rank Speed Safety Headers Similar Sites Keywords H Tags

cs50.tv Website Info

cs50.tv (CS50 TV is an online educational resource provided by Harvard University that offers free video lectures, tutorials, and course materials on computer science and programming topics. It is designed to make learning coding accessible and engaging for beginners and experienced programmers alike.) was registered first at 2008-01-12 06:49:00. DNS looks Active and website looks Accessable. According to Google, website speed score is 33/100 and AVERAGE. Website looks safe for children.
cs50.tv


cs50.tv Website Tags

Domain Status:
✓ Active
Is Site Accessable?:
✓ Yes
SSL(https):
✓ Yes
Accessable Url:
https://www.cs50.tv
Title:
CS50: Computer Science Courses and Programs from Harvard | edX
Description:
Introduction to Computer Science from Harvard, better known as CS50, is the largest course on the Harvard campus and more than 2,000,000 learners worldwide have registered for the course on edX.
Mobile Friendly?:
✓ Yes
Canonical URL:
[Not Set]

cs50.tv Domain & Whois Details

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Domain Create Date:
2008-01-12 06:49:00
Domain Age:
17 years, 5 months, 22 days
Domain Owner:
Sponsoring GODADDY.COM, LLC
Server Type:
Apache
Nameservers:
NS-1115.AWSDNS-11.ORG - NS-1895.AWSDNS-44.CO.UK - NS-418.AWSDNS-52.COM - NS-765.AWSDNS-31.NET -
Hosting Location:
Country: United States (US) /
Location:
ISP:
IP:
107.23.247.5



cs50.tv Website Speed (Desktop)

Refresh
Overall Category:
AVERAGE
The human readable speed "category"
Speed Index:
33
Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric].
Cumulative Layout Shift (CLS):
0.1 (FAST)
The Cumulative Layout Shift (CLS) metric measures how much unexpected layout shifts affect the user experience on a page. These layout shifts occur when content moves around without prior user input. CLS
Time to First Byte (TTFB):
1.61 s (AVERAGE)
TTFB (time to first byte) is the number of milliseconds it takes for a client’s browser to receive the first byte of the response from the web server. Usually, TTFB can be improved with faster hosting and server optimizations. TTFB
First Input Delay (FID):
3 ms (FAST)
First Input Delay (FID) measures the time from when the user interacts with your site for the first time (click a link, tap on a button, etc.) to the time when the browser is able to respond to that interaction. Google recommends keeping FID below 100ms for a good user experience. FID
First Contentful Paint (FCP):
2.214 s (AVERAGE)
FCP (First Contentful Paint) measures the time from a user’s navigation to when the browser renders the first bit of content from the DOM. In other words, FCP marks the time at which the first text or image is painted for the user. According to PageSpeed Insights, FCP should occur in under 2 seconds. FCP
Largest Contentful Paint (LCP):
2.346 s (FAST)
Largest Contentful Paint (LCP) is a metric that measures when the largest content in the viewport is rendered. It is used to measure how long it takes for the main content of your webpage to appear on the screen. Everything below 2.5s is considered good LCP time by PageSpeed Insights. LCP
Total Size:
11211 KB
Total Size. Large network payloads cost users real money and are highly correlated with long load times.
Server Response Time:
151 ms
Initial server response time. Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).
Final Url:
https://www.edx.org/cs50/
Canonicalized and final URL for the document, after following page redirects (if any).
Last Date Checked:
8/9/2023 10:25:37 AM
The last time we checked this website.
Site Speed Check(Full)

cs50.tv HTML Resources

Type
Request Count
Size
Total
149
11,211 KB
Third-party
109
9,530 KB
Image
32
8,318 KB
Script
64
2,090 KB
Other
44
574 KB
Document
3
118 KB
Font
4
107 KB
Stylesheet
2
1 KB
Media
0
0 KB

cs50.tv Website Safety

Refresh
Last Check Date:
12/28/2022 9:21:44 PM
Fortiguard:
Education
Mcafee Category:
Blogs/Wiki
OpenDNS:
BeFirst
Cloudflare DNS:
OK
MyWot Child Safety:
91

cs50.tv HTTP Headers

Refresh
Cache-Control :
no-cache, no-store, must-revalidate
Connection :
keep-alive
Content-Length :
515690
Content-Security-Policy :
frame-ancestors 'self'
Content-Type :
text/html
Date :
Thu, 08 Jun 2023 23:18:42 GMT
ETag :
"6196ca86dac0ec1a225283d9322fa26a"
expires :
0
Last-Modified :
Fri, 19 May 2023 20:26:41 GMT
Pragma :
no-cache
Server :
nginx/1.22.1
strict-transport-security :
max-age=60


cs50.tv W3C HTML Validation Check Now

Last Check Date:
5/30/2023 12:00:00 AM
Errors:
10
Warnings:
0
Info:
1
Check Live:
Check cs50.tv HTML Errors

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Top cs50.tv Alternatives

cs50.tv Site Keywords

Computer Science
Computer Science Courses and Programs from Harvard
CS50
cs50 courses
David Malan
edx cs50
harvard cs50
Online Courses
programming
software development

cs50.tv Site H Tags

Check Now
h1
This is CS50
h1
Announcements
h2
Description
h2
Notes
h2
Visitas Thinks Big
h2
Like to Prepare for CS50?
h2
Shopping?
h3
First Lecture
h3
Past Projects
h3
Video
h3
Photos

cs50.tv Sites with Same Names

Website
Title
Rank
cs50.org cs50.org
CS50 - Harvard University's Introduction to Computer Science
8,398,314
cs50.net cs50.net
CS50: Computer Science Courses and Programs from Harvard | edX
839,440
cs50.me cs50.me
CS50: Introduction to Computer Science - Harvard University
7,673,256
cs50.readthedocs.io cs50.readthedocs.io
CS50 Read the Docs - Comprehensive Documentation for CS50 Courses
517,506
cs50.ly cs50.ly
CS50: Computer Science Courses and Programs from Harvard | edX
45,518,944
cs50.io cs50.io
CS50.io - Harvard's Introduction to Computer Science
425,313
cs50.github.io cs50.github.io
CS50 Harvard's Introduction to Computer Science
14,853,727
cs50.com.ua cs50.com.ua
cs50 Веб решения и частная веб разработка - cs50 веб решения
13,354,111
cs50.jp cs50.jp
CS50 for Japanese: コンピュータサイエンスの入門 - 当ウェブサイトは、Creative Commons ライセンスに基づいて管理されています。
11,456,151
cs50.xyz cs50.xyz
cs50.wiki cs50.wiki
CS50 AP
cs50.school cs50.school

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