Website review calver.org
Calendar Versioning — CalVer
Generated on March 08 2026 08:43 AM
Old data? UPDATE !
The score is 53/100
SEO Content
Title
Calendar Versioning — CalVer
Length : 28
Perfect, your title contains between 10 and 70 characters.
Description
Timely Project Versioning
Length : 25
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 |
| 2 | 3 | 6 | 0 | 1 | 0 |
- [H1] CalVer
- [H1] Calendar Versioning
- [H2] Scheme
- [H2] Case studies
- [H2] When to use CalVer
- [H3] Ubuntu
- [H3] Twisted
- [H3] youtube-dl
- [H3] The IANA/Olson timezone database
- [H3] Teradata
- [H3] Other notable projects
- [H5] Previously
Images
We found 7 images on this web page.
7 alt attributes are empty or missing. Add alternative text so that search engines can better understand the content of your images.
Text/HTML Ratio
Ratio : 0%
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
Great, there are no Iframes detected on this page.
SEO Links
URL Rewrite
Good. Your links looks friendly!
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 43 links including 0 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| CalVer | Internal | Passing Juice |
| About | Internal | Passing Juice |
| Users | Internal | Passing Juice |
| 中文 | Internal | Passing Juice |
| pt-BR | Internal | Passing Juice |
| GitHub | External | Passing Juice |
| Calendar Versioning | Internal | Passing Juice |
| Scheme | Internal | Passing Juice |
| Case studies | Internal | Passing Juice |
| Ubuntu | Internal | Passing Juice |
| Twisted | Internal | Passing Juice |
| youtube-dl | Internal | Passing Juice |
| The IANA/Olson timezone database | Internal | Passing Juice |
| Teradata | Internal | Passing Juice |
| Other notable projects | Internal | Passing Juice |
| When to use CalVer | Internal | Passing Juice |
| design the scheme | External | Passing Juice |
| case studies | Internal | Passing Juice |
| Gregorian calendar | External | Passing Juice |
| UTC | External | Passing Juice |
| Ubuntu | External | Passing Juice |
| from the very start | External | Passing Juice |
| Twisted | External | Passing Juice |
| mature | External | Passing Juice |
| Klein | External | Passing Juice |
| Treq | External | Passing Juice |
| PyOpenSSL | External | Passing Juice |
| youtube-dl | External | Passing Juice |
| IANA/Olson timezone database | External | Passing Juice |
| versioned | External | Passing Juice |
| Teradata UDA client | External | Passing Juice |
| next-generation access | External | Passing Juice |
| Teradata | External | Passing Juice |
| semantic versioning | External | Passing Juice |
| boltons | External | Passing Juice |
| certifi | External | Passing Juice |
| fusefs-ntfs | External | Passing Juice |
| LibreOffice | External | Passing Juice |
| OpenSCAD | External | Passing Juice |
| pip | External | Passing Juice |
| PyCharm | External | Passing Juice |
| Stripe's API | External | Passing Juice |
| Unity | External | Passing Juice |
SEO Keywords
Keywords Cloud
calver calendar versioning
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| calendar | 1 |  |
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| versioning | 1 | |
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| calver | 1 | |
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Usability
Url
Domain : calver.org
Length : 10
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
Great no email address has been found in plain text!
Deprecated HTML
Great! We haven't found deprecated HTML tags in your HTML.
Speed Tips
|
Excellent, your website doesn't use nested tables. |
|
Perfect. No inline css has been found in HTML tags! |
|
Great, your website has few CSS files. |
|
Perfect, your website has few JavaScript files. |
|
Perfect, your website takes advantage of gzip. |
Mobile
Mobile Optimization
|
Apple Icon |
|
Meta Viewport Tag |
|
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://calver.org/robots.txt
Great, your website has a robots.txt file.
Analytics
Great, your website has an analytics tool.
Google Analytics |
PageSpeed Insights
Device
Categories
Free SEO Testing Tool
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