- SEO Checker

Overview of the SEO Check
Meta information
Page quality
Page structure
Link structure
External factors
SEO Score
Response time
0.43 s
File size
61.30 kB
Media files
Number of links
34 internal / 14 external

Task list of SEO Improvements

Meta specifications

(Critically important)
Contao Open Source CMS - Contao
The length of the page title is perfect. (323 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Contao is a powerful open source CMS that allows you to create professional websites and scalable web applications.
The length of the meta description is perfect. (725 pixels out of 1000 max pixel length)
(Critically important)
There are no problems in accessing the website.
Canonical URL
No canonical link is specified.
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
The specified alternate links have no errors.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

descriptionContao is a powerful open source CMS that allows you to create professional websites and scalable web applications.
generatorContao Open Source CMS

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Page quality

(Critically important)
This page contains 790 words. That's ok.
34.8% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
18 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 17.03 words is good.
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width,initial-scale=1.0,shrink-to-fit=no" is provided.
This page only loads 2 JavaScript files. That's good!
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 16 tags for this page.
Image SEO
(Somewhat important)
3 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Page structure

H1 heading
(Critically important)
The H1 heading consists of only one word. There should be more information given.
The H1 heading is too short (6 characters). It should be at least 20 Characters long.
There are 26 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 Contao
H2 Contao is a powerful open source CMS that allows you to create professional websites and scalable web applications.
H2 Why Contao?
H2 Satisfied users
H2 Case studies
H2 Contao Manager
H2 The right choice for your project
H3 Proven. Since 2006.
H3 Steadfast. Current.
H3 Easy. Intuitive.
H3 Versatile. Mobile.
H3 Solid. Changeable.
H3 Support? Ask!
H3 Versatile
H3 GDPR compliant
H3 SEO ready
H3 Useable
H3 Performant
H3 Secure
H3 Long term support
H3 German-speaking
H3 Highly customizable
H3 Powered by Symfony
H3 Open Source CMS
H3 Upcoming events
H3 Latest news
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 14 external links on this page.
LinkAttributesAnchor text Contao Open Source CMS navigation
A-TITLE View the detailed Contao feature list
/en/case-studies.htmlCase studies
A-TITLE Find out what can be done with Contao
A-TITLE Read the official Contao announcements
A-TITLE Events
A-TITLE Team window External Subdomain Online demo
A-TITLE Online demo
A-TITLE Download the Contao core distribution
/en/release-plan.htmlRelease plan
A-TITLE Release plan
/en/contao-partners.htmlContao partners
A-TITLE Find a Contao partner in your area
/en/contao-partner-map.htmlContao partner map
A-TITLE Find a Contao partner in your area
/en/service-description.htmlService description
A-TITLE Partner program service description Subdomain Become a partner
A-TITLE Become a partner
A-TITLE Get Contao support window External Subdomain Documentation
A-TITLE Documentation window External Report a bug
A-TITLE Report a bug
/en/security-advisories.htmlSecurity advisories
A-TITLE Security advisories
/en/network.htmlContao network
A-TITLE View more Contao resources
A-TITLE Contao Open Source CMSñol
A-TITLE Contao Open Source CMSçais
A-TITLE Contao Open Source CMS window External Subdomain Text duplicate Online demo
A-TITLE Open the Contao online demo
/en/download.htmlText duplicate Download window External Subdomain extensions
/en/case-studies.htmlView case studies
/en/release-plan.htmldevelopment cycle window External Symfony window External GitHub window External security policy Mumble-Call
A-TITLE Contao Mumble-Call (Thursday, 2021-07-29 15:00) Berlin
A-TITLE Contao-Stammtisch Berlin (Thursday, 2021-08-12 18:00–23:00) duplicate Contao Mumble-Call
A-TITLE Contao Mumble-Call (Thursday, 2021-08-26 15:00)
/en/news/contao-two-month-revi...Contao Two Month Review May and June 2021
A-TITLE Read the article: Contao Two Month Review May and June 2021
/en/news/contao-4-9-16-and-4-1...Contao 4.9.16 and 4.11.5 are available
A-TITLE Read the article: Contao 4.9.16 and 4.11.5 are available
/en/security-advisories/cross-...Cross site scripting in the system log
A-TITLE Read the article: Cross site scripting in the system log duplicate Skip navigation
A-TITLE Sitemap
/en/privacy-notice.htmlPrivacy notice
A-TITLE Privacy Policy
/en/legal-notice.htmlLegal notice
A-TITLE See who is responsible for the Contao project website window External A-TITLE Contao on GitHub window External A-TITLE Contao on Twitter window External A-TITLE Contao on Facebook window External A-TITLE Contao on YouTube window External A-TITLE Contao on Pinterest

Server configuration

HTTP redirects
(Critically important)
This page redirects to ""
HTTP header
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
(Somewhat important)
The page response time of 0.43 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
This page only loads 1 CSS files. That's ok.
This page only loads 2 JavaScript files. That's good!
The file size of the HTML document is fine (61 kB).

HTTP Response Header

dateMon, 12 Jul 2021 18:21:49 GMT
content-typetext/html; charset=utf-8
strict-transport-securitymax-age=31536000; includeSubDomains
referrer-policyno-referrer-when-downgrade, strict-origin-when-cross-origin
x-xss-protection1; mode=block
cache-controlmax-age=0, no-cache, s-maxage=86400
expect-ctmax-age=604800, report-uri=""
alt-svch3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400, h3=":443"; ma=86400

External factors

(Critically important)
This website is not classified "for adult only".
This website is not listed on the Shallalist.
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 330 referring domains.
This page has 2,333 backlinks.
This page has backlinks from 309 different ip addresses.
Facebook popularity
(Somewhat important)
This page has social activity like shares, comments or likes on facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.




Facebook popularity

Shares / Likes / Comments

Only the data for the given URL is shown. We cannot determine the social actions for a linked fan page.

Search preview
Contao Open Source CMS - Contao
Contao is a powerful open source CMS that allows you to create professional websites and scalable web applications.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

Contao open source74%Check
Contao Open Source CMS72%Check
Open Source68%Check
Source CMS68%Check
open source CMS67%Check
Contao Manager65%Check
Contao partners65%Check
powerful open source CMS64%Check

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