Website review cryptool.de
Homepage – CrypTool
Generated on February 19 2026 01:07 AM
Old data? UPDATE !
The score is 49/100
SEO Content
Title
Homepage – CrypTool
Length : 19
Perfect, your title contains between 10 and 70 characters.
Description
Play with cryptological tools online, learn cryptology, and solve puzzles. We want to create interest in cryptology and raise awareness for cyber security.
Length : 155
Great, your meta description contains between 70 and 160 characters.
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 |
| 1 | 9 | 0 | 2 | 1 | 0 |
- [H1] Welcome to CrypTool
- [H2] Play with cryptological tools online
- [H2] Combine cryptological components
- [H2] Solve cryptological puzzles
- [H2] Teach cryptology in school
- [H2] Decipher historical manuscripts
- [H2] The original CrypTool version
- [H2] CrypTool on all major operating systems
- [H2] CrypTool action days in schools
- [H2] Read more about cryptology
- [H4] Find other crypto related websites
- [H4] Powered by CODE
- [H5] Check out our projects
Images
We found 34 images on this web page.
5 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 : 1%
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
Perfect! No underscores detected in your URLs.
In-page links
We found a total of 9 links including 0 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| DE | Internal | Passing Juice |
| Homepage | Internal | Passing Juice |
| Contributors | Internal | Passing Juice |
| Links / Books | Internal | Passing Juice |
| CrypTool 1 | Internal | Passing Juice |
| CrypTool 2 | Internal | Passing Juice |
| contact us | Internal | Passing Juice |
| chain of links | External | Passing Juice |
| Research Institute CODE | External | Passing Juice |
SEO Keywords
Keywords Cloud
required runs cryptological project offers download browser cryptology schools cryptool
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| cryptool | 18 |  |
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| cryptology | 9 | |
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| runs | 7 | |
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| cryptological | 5 | |
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| download | 4 | |
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Usability
Url
Domain : cryptool.de
Length : 11
Favicon
Great, your website has a favicon.
Printability
We could not find a Print-Friendly CSS.
Language
You have not specified the language. Use this free meta tags generator to declare the intended language of your website.
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
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Excellent, your website doesn't use nested tables. |
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Too bad, your website is using inline styles. |
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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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Too bad, your website does not take 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://cryptool.de/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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