SEO report of leokannerschool.nl
Redirected to www.leokanner.nl/
Leo Kanner > Home
www.leokanner.nl/
Error! The "meta description" is missing, the page has no summary description!
Tasks
- Make the site mobile device friendly.
- Select one version of your site as main and make a redirect from other versions to that one.
- Avoid using deprecated HTML tags.
- Implement the viewport meta tag.
SEO
URL
Domain : www.leokanner.nl/
Character length : 17
Title
Leo Kanner > Home
Keywords (meta keywords)
Good! The website does not use “meta keywords”.
Open Graph Protocol
Error! The website does not use the OG (Open Graph) protocol.
Dublin Core
Dublin Core is not used
Underscores in the URLs
Good! No underscore (_) found in the URLs.
Search engine friendly URLs
Good! The website uses SEO friendly URLs.
Checking the robots.txt file
There is robots.txt file.
https://leokanner.nl/robots.txt
https://leokanner.nl/robots.txt
| User-agent | Disallowed for the search engines |
|---|---|
| * |
|
| msnbot |
|
| Slurp |
|
| Googlebot |
|
| Yahoo Pipes 1.0 |
|
| MJ12bot |
|
| SemrushBot |
|
| AhrefsBot |
|
Social
Social Engagement
Linkedin5
Facebook Share0
Facebook Comments0
Content
Doctype
XHTML 1.0 Transitional
Encoding
Perfect! The character encoding is set: UTF-8.
Language
We have found the language localisation: ”nl”.
Title
Leo Kanner > Home
Character length : 17
Good! The title’s length is between 10 and 70 characters.
Character length : 17
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 13%
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
|---|---|---|---|---|---|
| 1 | 0 | 0 | 2 | 1 | 0 |
Heading structure in the source code
- <H1>
- <H5>
- <H4> AED
- <H4> 45 jaar Prof. Dr. Leo Kanner
Word cloud
- leo14
- kanner7
- onderwijsgroep6
- vso6
- kannerschool5
- onderwijs5
- aed4
- prof4
- leerlingen4
- problematiek3
- ambulante3
- psychiatrische3
- curium-lumc3
- en/of2
- leiden2
- oegstgeest2
- vestigingen2
- speciaal2
- jaar2
- esb2
- leiderdorp2
- parachute2
- kannercollege2
- hooftcollege2
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| leo | |||
| kanner | |||
| onderwijsgroep | |||
| vso | |||
| kannerschool | |||
| onderwijs |
Two Word cloud
- leo kanner5
- kanner onderwijsgroep4
- leo kannerschool4
- oegstgeest leo2
- leo kannercollege2
- en/of psychiatrische2
Three Word cloud
- leo kanner onderwijsgroep2
404 Page
The website has a 404 error page.
Flash content
Good! The website does not have any flash contents.
Frame
Good! The website does not use iFrame solutions.
Images
We found 1 images on this web page.
Alternate attributes for the following 1 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
Alternate attributes for the following 1 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
Technologies
Mobile optimization
Error! This website is not optimized for mobile devices... It is optimized for devices which have at least 986px wide display!
Detected applications
 | DNN | CMS |
 | Google Analytics | Analytics |
 | Microsoft ASP.NET | Web Frameworks |
 | jQuery | JavaScript Frameworks |
 | IIS | Web Servers |
 | Windows Server | Operating Systems |
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Redirection (www / not www)
Error! The web address is accessible with and without www!
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Printability
Suggestion! Unfortunately, no printer-friendly CSS found.
Meta Tag (viewport tag, mobile devices)
Error! The meta tag named viewport is missing.
Speed test
Server response time
The server response time is fast enough.
Loading time
478 ms
Table layout
Good! No nested tables found.
Number of HTTP resources
23
Number of source domains
2
Render blocking resources
The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files
List of render blocking javascript files
- http://www.leokanner.nl/.. /jquery.js?cdv=392
- http://www.leokanner.nl/WebResource.axd?d=pynGkmcFUV2epgab0_bFxS...
- http://www.leokanner.nl/Telerik.Web.UI.WebResource.axd?_TSM_Hidd...
- http://www.leokanner.nl/js/dnn.js?cdv=392
- http://www.leokanner.nl/js/dnncore.js?cdv=392
- http://www.leokanner.nl/.. /SearchSkinObjectPreview.js?cdv=392
- http://www.leokanner.nl/js/dnn.servicesframework.js?cdv=392
- http://www.leokanner.nl/.. /default.css?cdv=392
- http://www.leokanner.nl/DesktopModules/HTML/module.css?cdv=392
- http://www.leokanner.nl/.. /SearchSkinObjectPreview.css?cdv=392
- http://www.leokanner.nl/.. /skin.css?cdv=392
- http://www.leokanner.nl/.. /container.css?cdv=392
- http://www.leokanner.nl/Portals/712/portal.css?cdv=392
- http://www.leokanner.nl/Telerik.Web.UI.WebResource.axd?compress=...
Speed test – Javascript
Javascript
Error! Too many javascript files found which slows down the page load on the website.
- http://www.leokanner.nl/Resources/libraries/jQuery/01_09_01/jquery.js?cdv=159
- http://www.leokanner.nl/Resources/libraries/jQuery-Migrate/01_02_01/jquery-migrate.js?cdv=159
- http://www.leokanner.nl/WebResource.axd?d=tszc3Hl00rpRnIU38dKwSfPv26y_oBy__Vx9mWdD4ZlVumKyVdmL7XMj17UpCxMKnJhb0fX3kyRjmsbi0&t=635793089982061497
- http://www.leokanner.nl/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ScriptManager_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3anl-NL%3a93a6b8ed-f453-4cc5-9080-8017894b33b0%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2013.2.717.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3anl-NL%3aa713c6a1-0827-4380-88eb-63855ca4c2d9%3a16e4e7cd%3af7645509%3a24ee1bba%3ae330518b%3a2003d0b8%3a1e771326%3ac8618e41%3af46195d3%3a4cacbc31
- http://www.leokanner.nl/js/dnn.js?cdv=159
- http://www.leokanner.nl/js/dnn.servicesframework.js?cdv=159
- http://www.leokanner.nl/js/dnncore.js?cdv=159
- http://www.leokanner.nl/Resources/Search/SearchSkinObjectPreview.js?cdv=159
- http://www.leokanner.nl/Resources/Shared/scripts/initWidgets.js
File size of all javascript files combined
875.38KB
Javascript minifying
You can save 39.6KB (47% compression) on the analysed URL by minifying the javascript files.
Speed test – CSS
CSS
Error! Too many CSS files detected that slows down the page load.
- http://www.leokanner.nl/Portals/_default/default.css?cdv=159
- http://www.leokanner.nl/DesktopModules/HTML/module.css?cdv=159
- http://www.leokanner.nl/Resources/Search/SearchSkinObjectPreview.css?cdv=159
- http://www.leokanner.nl/Portals/_default/Skins/LeoKanner/skin.css?cdv=159
- http://www.leokanner.nl/Portals/_default/Containers/LeoKanner/container.css?cdv=159
- http://www.leokanner.nl/Portals/712/portal.css?cdv=159
File size of all css files combined
147.28KB
CSS minifying
You can save 7.2KB (32% compression) on the analysed URL by minifying the CSS files.
- By minifying http://www.leokanner.nl/.. /default.css?cdv=392 you can save 5KB (30% compression rate)
- By minifying http://www.leokanner.nl/.. /skin.css?cdv=392 you can save 2KB (47% compression rate)
- By minifying http://www.leokanner.nl/Portals/712/portal.css?cdv=392 you can save 114B (11% compression rate)
- By minifying http://www.leokanner.nl/.. /SearchSkinObjectPreview.css?cdv=392 you can save 114B (16% compression rate)
Speed test – Compression
Uncompressed size of the of the HTML
40.46KB
Gzip compression
Your site uses compression.
Speed test – Browser cache
Number of static resources (image, JS, CSS)
10
Browser cache
The browser cache is not set correctly for all elements.
| URL | Duration |
|---|---|
| http://www.leokanner.nl/.. /logo.png | Expiry time is not specified |
| http://www.leokanner.nl/.. /header2.png | Expiry time is not specified |
| http://www.leokanner.nl/.. /left_hoek.png | Expiry time is not specified |
| http://www.leokanner.nl/.. /locatie_foto.jpg | Expiry time is not specified |
| http://www.leokanner.nl/.. /login.png | Expiry time is not specified |
| http://www.leokanner.nl/.. /Voorpagina.png | Expiry time is not specified |
| http://www.google-analytics.com/ga.js | 2 hours |
Speed test – Images
File size of all images combined
308.24KB
Image optimisation
You can save 8.9KB (44% compression) by optimising the images below:
- By lossless compressing the http://www.leokanner.nl/.. /locatie_foto.jpg you can save 8.7KB (45%) data.
- By lossless compressing the http://www.leokanner.nl/.. /login.png you can save 173B (20%) data.
Links
We found a total of 17 different links.
Internal links: 15
External links: 2
Internal links: 15
External links: 2
External links:
Internal links:
Website security
IP
84.241.177.42
External hidden links
Good! No hidden external links found
Looking for eval()
Good! No eval(bas64_decode()) scripts are found
Checking for XSS vulnerability
No XSS vulnerability found
Email encryption
Good! We have not found any unencrypted email addresses.
Sites on same ip
Icons
Favicon
Error! No favicon is found. Using favicon helps to build a better brand quicker.
Order of Heading elements on mobile by position
- H1 : Prof. Dr. Leo Kanner Onderwijsgroep , ( 231px from top )
- H5 : , ( 299px from top )
- H4 : AED, ( 731px from top )
- H4 : 45 jaar Prof. Dr. Leo Kanner, ( 929px from top )
Typos
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