Website review cocalc.io
Collaborative Calculation and Data Science
Generated on January 14 2026 21:03 PM
Old data? UPDATE !
The score is 40/100
SEO Content
Title
Collaborative Calculation and Data Science
Length : 42
Perfect, your title contains between 10 and 70 characters.
Description
CoCalc landing pages and documentation
Length : 38
Ideally, your meta description should contain between 70 and 160 characters (spaces included). Use this free tool to calculate text length.
Keywords
Very bad. We haven't found meta keywords on your page. Use this free online meta tags generator to create keywords.
Og Meta Properties
This page does not take advantage of Og Properties. This tags allows social crawler's better structurize your page. Use this free og properties generator to create them.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 0 | 8 | 11 | 2 | 3 | 0 |
- [H2] Powerful Compute Servers with Optional GPUs
- [H2] Extensive Generative AI Integration
- [H2] Many Programming Languages
- [H2] Realtime Collaboration Using Your Favorite Tools
- [H2] Jupyter, SageMath, LaTeX, and Linux
- [H2] Integrated Course Management System
- [H2] Much More …
- [H2] Solutions
- [H3] Real-time collaboration for Jupyter Notebooks, Linux Terminals, LaTeX, and more, all in one place.
- [H3] Jupyter Notebooks
- [H3] Sage Worksheets
- [H3] LaTeX\LaTeXLATEX Editor
- [H3] Linux Terminal
- [H3] Available Software
- [H3] Computational Whiteboard
- [H3] Feature Overview
- [H3] Online Service with GPUs
- [H3] Teach a Course
- [H3] On-Premises
- [H4] Collaborative Calculation and Data Science
- [H4] by Sagemath, Inc.
- [H5] Product
- [H5] Resources
- [H5] Company
Images
We found 10 images on this web page.
Good, most or all of your images have alt attributes.
Text/HTML Ratio
Ratio : 2%
This page's ratio of text to HTML code is below 15 percent, this means that your website probably needs more text content.
Flash
Perfect, no Flash content has been detected on this page.
Iframe
Too Bad, you have Iframes on the web pages, this mean that content in an Iframe cannot be indexed.
SEO Links
URL Rewrite
Bad. Your links have query string.
Underscores in the URLs
We have detected underscores in your URLs. You should rather use hyphens to optimize your SEO.
In-page links
We found a total of 60 links including 1 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| Store | Internal | Passing Juice |
| Features | Internal | Passing Juice |
| Docs | Internal | Passing Juice |
| Share | Internal | Passing Juice |
| Support | Internal | Passing Juice |
| News | Internal | Passing Juice |
| About | Internal | Passing Juice |
| Policies | Internal | Passing Juice |
| Sign Up | Internal | Passing Juice |
| Sign In | Internal | Passing Juice |
| CoCalc and NVIDIA CUDA-Q: Revolutionizing Quantum Education | Internal | Passing Juice |
| More Videos | External | Passing Juice |
| Google Colab | External | Passing Juice |
| PyTorch | External | Passing Juice |
| Open WebUI | External | Passing Juice |
| root | External | Passing Juice |
| Read the docs | External | Passing Juice |
| check out some applications | External | Passing Juice |
| Generative AI Large Language Models | External | Passing Juice |
| fix errors | External | Passing Juice |
| programming languages | Internal | Passing Juice |
| LaTeX files | Internal | Passing Juice |
| SageMath Worksheets | Internal | Passing Juice |
| Computational Whiteboards | Internal | Passing Juice |
| open world approach | External | Passing Juice |
| Jupyter Notebooks | Internal | Passing Juice |
| Sage Worksheets | External | Passing Juice |
| SageMath | External | Passing Juice |
| much more | External | Passing Juice |
| Linux Terminal | Internal | Passing Juice |
| Linux | Internal | Passing Juice |
| automated grading via nbgrader | External | Passing Juice |
| Python | Internal | Passing Juice |
| R | Internal | Passing Juice |
| Julia | Internal | Passing Juice |
| install additional software | External | Passing Juice |
| - | Internal | Passing Juice |
| trial project | External | Passing Juice |
| start exploring | External | Passing Juice |
| license | Internal | Passing Juice |
| pay-as-you-go | External | Passing Juice |
| - | Internal | Passing Juice |
| teach a course | Internal | Passing Juice |
| - | Internal | Passing Juice |
| - | External | Passing Juice |
| - | External | Passing Juice |
| - | External | Passing Juice |
| - | External | Passing Juice |
| - | External | Passing Juice |
| Licenses | Internal | Passing Juice |
| Pricing | Internal | Passing Juice |
| Translations | Internal | Passing Juice |
| System Activity | Internal | Passing Juice |
| Status | External | Passing Juice |
| Documentation | Internal | Passing Juice |
| Get a Live Demo | External | Passing Juice |
| Contact Us | Internal | Passing Juice |
| Contact | Internal | Passing Juice |
| Events | Internal | Passing Juice |
| Team | Internal | Passing Juice |
SEO Keywords
Keywords Cloud
cocalc more latex videos linux using jupyter compute software servers
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| cocalc | 20 |  |
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| more | 14 | |
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| servers | 9 | |
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| videos | 9 | |
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| compute | 8 | |
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Usability
Url
Domain : cocalc.io
Length : 9
Favicon
Great, your website has a favicon.
Printability
We could not find a Print-Friendly CSS.
Language
Good. Your declared language is en.
Dublin Core
This page does not take advantage of Dublin Core.
Document
Doctype
HTML 5
Encoding
Perfect. Your declared charset is UTF-8.
W3C Validity
Errors : 0
Warnings : 0
Email Privacy
Warning! At least one email address has been found in the plain text. Use free antispam protector to hide email from spammers.
Deprecated HTML
Great! We haven't found deprecated HTML tags in your HTML.
Speed Tips
|
Excellent, your website doesn't use nested tables. |
|
Too bad, your website is using inline styles. |
|
Great, your website has few CSS files. |
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Too bad, your website has too many JS files (more than 6). |
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Perfect, your website takes advantage of gzip. |
Mobile
Mobile Optimization
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Apple Icon |
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Meta Viewport Tag |
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Flash content |
Optimization
XML Sitemap
Missing
Your website does not have an XML sitemap - this can be problematic.
A sitemap lists URLs that are available for crawling and can include additional information like your site's latest updates, frequency of changes and importance of the URLs. This allows search engines to crawl the site more intelligently.
Robots.txt
https://cocalc.io/robots.txt
Great, your website has a robots.txt file.
Analytics
Missing
We didn't detect an analytics tool installed on this website.
Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.
PageSpeed Insights
Device
Categories
Free SEO Testing Tool
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