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KNMI - Koninklijk Nederlands Meteorologisch Instituut
Het KNMI is het nationale data- en kenniscentrum voor weer, klimaat en seismologie.
https://www.knmi.nl/home
2 high issues
6.1%
2 medium issues
6.1%
3 low issues
9.1%
26 tests passed
78.8%
0.02 seconds
26.32 kB
25 resources
Secure
Seo
Title
The title tag is perfect.
KNMI - Koninklijk Nederlands Meteorologisch Instituut
Meta description
The meta description tag is good.
Het KNMI is het nationale data- en kenniscentrum voor weer, klimaat en seismologie.
Headings
The headings are properly set.
  1. KNMI-klimaatwetenschapper Rob van Dorland bij COP27
  1. Direct naar
  2. Over het KNMI
Content keywords
The content has relevant keywords.
knmi
Image keywords
There are 7 images with missing alt attributes.
  1. data:image/gif;base64,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
  2. https://cdn.knmi.nl/knmi/map/general/weather-map.gif?ae111e59b1c40b08edf9cbb8f1e5ee2d
  3. https://cdn.knmi.nl/knmi/map/general/weather-map.gif?ae111e59b1c40b08edf9cbb8f1e5ee2d
  4. https://cdn.knmi.nl/assets/forecast/1-druppel-regen-dag-567d5c9a7ecea37dcea835f6d7532ddc38cf6633513038a9e79eee926b5cd9de.svg
  5. https://cdn.knmi.nl/assets/forecast/2-druppels-regen-dag-01dce4fbd163e0f2ec5b3cfd234895a96595ea7a4dcf9c0d04917ec11874037e.svg
  6. https://cdn.knmi.nl/assets/forecast/Bewolkt-dag-71223d0a57f614f0b9b25a950fab740f9bab0a136965fbc9d4c0b03f54f04735.svg
  7. https://cdn.knmi.nl/assets/forecast/Bewolkt-dag-71223d0a57f614f0b9b25a950fab740f9bab0a136965fbc9d4c0b03f54f04735.svg
SEO friendly URL
The URL is SEO friendly.
https://www.knmi.nl/home
404 page
The website has 404 error pages.
https://www.knmi.nl/404-610099fe58d7af2a8f3b1dc909243ccf
Robots.txt
The webpage can be accessed by search engines.
Noindex
The webpage does not have a noindex tag set.
In-page links
The number of links on the webpage is okay.
Language
The webpage has the language declared.
nl
Favicon
The webpage has a favicon.
https://cdn.knmi.nl/assets/apple-touch-icon-34d873d8614be8c7a9ba9354828b2d98e071c7b7c4dd3bc06f6d5511128cf9e6.png
Performance
Text compression
The HTML file is not compressed.
Load time
The webpage loaded in 0.02 seconds.
Page size
The size of the HTML webpage is 26,323.00.
HTTP requests
There are fewer than 25 HTTP requests on the webpage.
  1. https://cdn.knmi.nl/assets/modernizr/modernizr.min-41b48fa5a0697a80acaca1db92bc9d7b0d40561cb71b5539a79a0b32e500bcee.js
  2. https://cdn.knmi.nl/assets/application-b672d08ffd87218778c668873da44e57a89b0060024897d33941e221bfe084f5.js
  1. https://cdn.knmi.nl/assets/application-024c5a060297585a570ad6641928219bbf9ccf4bc931efebbb5155e397215a7d.css
  1. https://cdn.knmi.nl/assets/logo_large-1eaabc639fd87bd3867e4e1e3358711968aad57ca90d766ecdd62f93930abf3b.png
  2. https://cdn.knmi.nl/assets/logo_small-556afeb8156445792163b9ba156bf49ce4c40c52f370409f9fb6b924b68218c4.png
  3. https://cdn.knmi.nl/assets/logo_large-1eaabc639fd87bd3867e4e1e3358711968aad57ca90d766ecdd62f93930abf3b.png
  4. data:image/gif;base64,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
  5. https://cdn.knmi.nl/knmi/map/general/weather-map.gif?ae111e59b1c40b08edf9cbb8f1e5ee2d
  6. https://cdn.knmi.nl/knmi/map/general/weather-map.gif?ae111e59b1c40b08edf9cbb8f1e5ee2d
  7. https://cdn.knmi.nl/assets/forecast/1-druppel-regen-dag-567d5c9a7ecea37dcea835f6d7532ddc38cf6633513038a9e79eee926b5cd9de.svg
  8. https://cdn.knmi.nl/assets/forecast/2-druppels-regen-dag-01dce4fbd163e0f2ec5b3cfd234895a96595ea7a4dcf9c0d04917ec11874037e.svg
  9. https://cdn.knmi.nl/assets/forecast/Bewolkt-dag-71223d0a57f614f0b9b25a950fab740f9bab0a136965fbc9d4c0b03f54f04735.svg
  10. https://cdn.knmi.nl/assets/forecast/Bewolkt-dag-71223d0a57f614f0b9b25a950fab740f9bab0a136965fbc9d4c0b03f54f04735.svg
  11. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  12. https://cdn.knmi.nl/system/spotlights/images/000/001/168/medium/Rob_van_Dorland_2015_KNMI.jpg?1667814783
  13. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  14. https://cdn.knmi.nl/system/spotlights/images/000/001/167/small/WMO_rapport_202210.png?1667297756
  15. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  16. https://cdn.knmi.nl/system/spotlights/images/000/001/166/small/Terras_zonnig_Den_Haag_september_Tineke_Dijkstra_790.jpg?1667292135
  17. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  18. https://cdn.knmi.nl/system/spotlights/images/000/001/165/small/herfst-hero.jpeg?1666996798
  19. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  20. https://cdn.knmi.nl/system/spotlights/images/000/000/915/small/EWC_visualisatie_zonder_ticker_KNMI.jpg?1620631418
  21. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  22. https://cdn.knmi.nl/system/storyline_spotlights/images/000/000/028/medium/Storm_aan_de_kust_Tineke_Dijkstra_spiegel.jpg?1609853728
Image format
There are 18 images that are not using the AVIF, WebP format.
  1. https://cdn.knmi.nl/assets/logo_large-1eaabc639fd87bd3867e4e1e3358711968aad57ca90d766ecdd62f93930abf3b.png
  2. https://cdn.knmi.nl/assets/logo_small-556afeb8156445792163b9ba156bf49ce4c40c52f370409f9fb6b924b68218c4.png
  3. https://cdn.knmi.nl/assets/logo_large-1eaabc639fd87bd3867e4e1e3358711968aad57ca90d766ecdd62f93930abf3b.png
  4. data:image/gif;base64,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
  5. https://cdn.knmi.nl/knmi/map/general/weather-map.gif?ae111e59b1c40b08edf9cbb8f1e5ee2d
  6. https://cdn.knmi.nl/knmi/map/general/weather-map.gif?ae111e59b1c40b08edf9cbb8f1e5ee2d
  7. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  8. https://cdn.knmi.nl/system/spotlights/images/000/001/168/medium/Rob_van_Dorland_2015_KNMI.jpg?1667814783
  9. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  10. https://cdn.knmi.nl/system/spotlights/images/000/001/167/small/WMO_rapport_202210.png?1667297756
  11. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  12. https://cdn.knmi.nl/system/spotlights/images/000/001/166/small/Terras_zonnig_Den_Haag_september_Tineke_Dijkstra_790.jpg?1667292135
  13. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  14. https://cdn.knmi.nl/system/spotlights/images/000/001/165/small/herfst-hero.jpeg?1666996798
  15. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  16. https://cdn.knmi.nl/system/spotlights/images/000/000/915/small/EWC_visualisatie_zonder_ticker_KNMI.jpg?1620631418
  17. data:image/gif;base64,R0lGODlhEAAJAPAAAP///wAAACH/C1hNUCBEYXRhWE1QAz94cAAh+QQFAAAAACwAAAAAEAAJAAACCoSPqcvtD6OclBUAOw==
  18. https://cdn.knmi.nl/system/storyline_spotlights/images/000/000/028/medium/Storm_aan_de_kust_Tineke_Dijkstra_spiegel.jpg?1609853728
JavaScript defer
The are 2 javascript resources without the defer attribute.
  1. https://cdn.knmi.nl/assets/modernizr/modernizr.min-41b48fa5a0697a80acaca1db92bc9d7b0d40561cb71b5539a79a0b32e500bcee.js
  2. https://cdn.knmi.nl/assets/application-b672d08ffd87218778c668873da44e57a89b0060024897d33941e221bfe084f5.js
DOM size
The DOM size is optimal.
The HTML file has 292 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://www.knmi.nl/home DOM nodes.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage does not have a public server signature.
Unsafe cross-origin links
The webpage does not have unsafe cross-origin links.
Plaintext email
The webpage does not contain any plaintext emails.
Miscellaneous
Structured data
There are no structured data tags on the webpage.
Meta viewport
The webpage has a meta viewport tag set.
width=device-width, initial-scale=1.0
Character set
The webpage has a charset value set.
utf-8
Sitemap
No sitemaps found.
Social
The webpage has 3 social links.
Content length
The are less than 500 words on the webpage.
The webpage has 443 words.
Text to HTML ratio
The text to HTML ratio is 11%.
Inline CSS
The webpage does not contain inline CSS code.
Deprecated HTML
There are no deprecated HTML tags on the webpage.