cocalc.com


cocalc.com Website Info

cocalc.com (CoCalc is an online platform designed for collaborative computation and data analysis. It provides tools such as Jupyter notebooks, SageMath worksheets, LaTeX editors, and terminal access, enabling teams, educators, and researchers to work together effectively in real-time from anywhere.) was registered first at 2016-07-28 00:17:51. DNS looks Active and website looks Accessable. cocalc.com Website SEMRush Rank is 137,576. cocalc.com seems popular on facebook. According to Google, website speed score is 17/100 and SLOW. Website looks safe for children. We detected the website language as en-US.
cocalc.com


cocalc.com Website Tags

Domain Status:
✓ Active
Is Site Accessable?:
✓ Yes
SSL(https):
✓ Yes
Accessable Url:
Title:
CoCalc - Collaborative Computation and Data Science Platform
Description:
CoCalc (Collaborative Calculation) offers an online platform for real-time collaboration on Jupyter notebooks, SageMath worksheets, LaTeX, and more. Perfect for educators, data scientists, and researchers.
Categories :
Internet Services, Information Technology
External Links:
1
Internal Links:
71
Mobile Friendly?:
✓ Yes
Canonical URL:
[Not Set]
Language:
en-US
XML Sitemap:
✓ Yes
robots.txt:
✗ No
Favicon:
✓ Yes

cocalc.com Domain & Whois Details

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Domain Create Date:
2016-07-28 00:17:51
Domain Age:
8 years, 11 months, 6 days
Domain Expire Date:
2023-07-28T00:17:51Z
Domain Last Update Date:
2023-07-28T00:17:51Z
Domain Owner:
http://www.godaddy.com - GoDaddy.com, LLC -
Server Type:
cloudflare
Nameservers:
CANDY.NS.CLOUDFLARE.COM - RAJEEV.NS.CLOUDFLARE.COM -
Hosting Location:
Country:Canada, City:Toronto, Isp:American Registry Internet Numbers, Org:American Registry Internet Numbers
IP:
104.26.6.215 , 172.67.68.195 , 104.26.7.215

cocalc.com Backlinks & Rankings

SEMRush Rank:
137,576
Semrush Rank is a proprietary score that lets you find the domains that are getting the most traffic from organic search.
SEMRush Traffic:
13,498
Number of users expected to visit the website during the following month.
SEMRush Costs:
16,321
Estimated price of organic keywords in Google AdWords.
SEMRush URL Links:
669
Number of links to URL according to SemRush.
SEMRush Website Links:
209,841
Number of links to the website according to SemRush.
SEMRush Domain Links:
228,841
Number of links to SemRush Domain.
SEMRush Keywords In Top 100:
7,540
Number of keywords where site in Google's organic search top 100.

cocalc.com Social Media

Facebook Comments:
63
Facebook Shares:
1,237
Facebook Reactions:
271

cocalc.com Website Speed (Desktop)

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Overall Category:
SLOW
The human readable speed "category"
Speed Index:
17
Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric].
Cumulative Layout Shift (CLS):
0.03 (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):
1.798 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):
6 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):
2.611 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
Interaction to Next Paint (INP):
88 ms (FAST)
Interaction to Next Paint (INP) is a web performance metric that measures user interface responsiveness – how quickly a website responds to user interactions like clicks or key presses. Specifically, it measures how much time elapses between a user interaction like a click or key press and the next time the user sees a visual update on the page. INP
Largest Contentful Paint (LCP):
4.186 s (SLOW)
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:
3195 KB
Total Size. Large network payloads cost users real money and are highly correlated with long load times.
Server Response Time:
375 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://cocalc.com/
Canonicalized and final URL for the document, after following page redirects (if any).
Last Date Checked:
5/31/2023 6:44:29 AM
The last time we checked this website.

cocalc.com HTML Resources

Type
Request Count
Size
Total
96
3,195 KB
Script
49
2,792 KB
Third-party
22
1,077 KB
Other
36
184 KB
Stylesheet
3
90 KB
Document
2
71 KB
Font
3
49 KB
Image
3
8 KB
Media
0
0 KB

cocalc.com Website Safety

Refresh
Last Check Date:
5/2/2023 1:01:17 AM
Fortiguard:
Information Technology
Mcafee Category:
Internet Services
OpenDNS:
BeFirst
Cloudflare DNS:
OK
MyWot Child Safety:
99

cocalc.com HTTP Headers

Refresh
Cache-Control :
private, no-cache, no-store, max-age=0, must-reval
CF-Cache-Status :
DYNAMIC
CF-RAY :
7c69e2059e550f87-EWR
Connection :
keep-alive
Content-Security-Policy :
frame-ancestors 'self' https://*.minervaproject.co
Content-Type :
text/html; charset=utf-8
Date :
Sat, 13 May 2023 09:30:28 GMT
NEL :
{"success_fraction":0,"report_to":"cf-nel","max_ag
Permissions-Policy :
camera=*, fullscreen=(self), microphone=*
Referrer-Policy :
strict-origin-when-cross-origin
Report-To :
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.c
Server :
cloudflare
Set-Cookie :
connect.sid=s%3AUZkrmgk1ghL89DYvl_e3hGMNWYEgP6de.n
strict-transport-security :
max-age=31536000; includeSubdomains; preload
Transfer-Encoding :
chunked
Vary :
Accept-Encoding
x-content-type-options :
nosniff
x-xss-protection :
1; mode=block


cocalc.com W3C HTML Validation Check Now

Last Check Date:
5/27/2023 12:00:00 AM
Errors:
1001
Warnings:
0
Info:
0

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cocalc.com Site Keywords

cloud computing
cocalc
Collaborative Calculation
collaborative computation
jupyter notebook online
jupyter notebooks
LaTeX collaboration
online data science
online jupyter notebook
online linux terminal
online terminal
Real-time Collaboration

cocalc.com Site H Tags

Check Now
h1
Collaborative editing
h1
Available Tools
h1
Made for Teaching
h1
And much more …
h1
Offered Solutions
h2
Improve your research, teaching, and publishing using realtime collaborative Jupyter notebooks, LaTe
h2
Explore what people have published onCoCalc!
h3
Jupyter Notebooks
h3
Sage Worksheets
h3
LaTeX\LaTeXLATE​X Editor
h3
Linux Terminal
h3
Professional use
h3
Teaching a Course
h3
On-premises
h3
Available Software
h3
Computational Whiteboard
h3
Features Overview
h3
Mission and Features of CoCalc
h4
Collaborative Calculation and Data Science
h4
by Sagemath, Inc.

cocalc.com Sites with Same Names

Website
Title
Rank
CoCalc - Collaborative Calculation

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