Website review lehrerkeller.ch
Generated on January 27 2026 17:28 PM
Old data? UPDATE !
The score is 36/100
SEO Content
Title
Klassenhomepage Roger Keller - Mathematik
Length : 41
Perfect, your title contains between 10 and 70 characters.
Description
Lernen mit Freude!
Length : 18
Ideally, your meta description should contain between 70 and 160 characters (spaces included). Use this free tool to calculate text length.
Keywords
Business
Good, your page contains meta 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 | 0 | 0 | 0 | 0 | 0 |
- [H1] Mathematik 1. - 3. Real
Images
We found 65 images on this web page.
65 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 : 4%
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
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 52 links including 31 link(s) to files
SEO Keywords
Keywords Cloud
und rechteck sevelen aufgabenfuchs theorie terme winkel aufgaben mathematik real
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| theorie | 12 |  |
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| und | 11 | |
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| aufgabenfuchs | 9 | |
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| aufgaben | 7 | |
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| terme | 5 | |
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Usability
Url
Domain : lehrerkeller.ch
Length : 15
Favicon
Great, your website has a favicon.
Printability
We could not find a Print-Friendly CSS.
Language
Good. Your declared language is de.
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
|
Attention! Try to avoid nested tables in HTML. |
|
Too bad, your website is using inline styles. |
|
Too bad, your website has too many CSS files (more than 4). |
|
Too bad, your website has too many JS files (more than 6). |
 |
Perfect, your website takes advantage of gzip. |
Mobile
Mobile Optimization
|
Apple Icon |
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Meta Viewport Tag |
|
Flash content |
Optimization
XML Sitemap
Great, your website has an XML sitemap.
| https://lehrerkeller.ch/sitemap.xml |
Robots.txt
http://lehrerkeller.ch/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
Website-SEO-Überprüfung
Website-SEO-Überprüfung is a free SEO tool which provides you content analysis of the website.