Rivm.nl - SEO Checker

Overview of the SEO Check
Meta information
80% 
Page quality
51% 
Page structure
100% 
Link structure
88% 
Server
72% 
External factors
100% 
SEO Score
Response time
1.35 s
File size
35.00 kB
Words
416
Media files
7
Number of links
58 internal / 10 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Rijksinstituut voor Volksgezondheid en Milieu | RIVM
The length of the page title is perfect. (468 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.rivm.nl/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: nl
Language defined in HTML: nl
Server location: Netherlands
The following language is defined by HTML: nl
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.
Domain
(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.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
google-site-verificationR0NExCZF0lwOnpwPGig20XuxSuCQ1D2C5wlyLTtkNcY
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
langnl
twitter:cardsummary_large_image
x-ua-compatibleie=edge
charsetutf-8

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Page quality

Content
(Critically important)
Only 2 paragraph/s was/were found on this page.
There are only 416 words on this page. Good pages should have about 800 words of useful content.
26.4% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 17.8 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
This page loads 6 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 8 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)
This page is optimized perfectly for social networks.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
/themes/custom/sdv_theme/logo.svgRijksoverheid logo
..._uitsnede_4.jpg?h=6bae50aa&itok=bXNAY6MgNo alt attribute provided
...-darmkanker.jpg?h=dacdb7b5&itok=w3x4tHEXNo alt attribute provided
...s-met-bloed.jpg?h=790be497&itok=bMVe7XM_No alt attribute provided
...smiddelen_1.jpg?h=2246b011&itok=oS9Vcbjqtoepassen van bestrijdingsmiddelen
...ok-stikstof.jpg?h=93ced445&itok=GmJ6LHp_Meetopstelling stikstof
...nderzoek064.jpg?h=f82bb508&itok=i_nMTPUtbevolkingsonderzoek darmkanker paarse envelop

Page structure

H1 heading
(Critically important)
Rijksinstituut voor Volksgezondheid en Milieu
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Rijksinstituut voor Volksgezondheid en Milieu
H2 Veel bezocht
H2 Nieuws
H2 Uitgelichte onderwerpen
H2 Recent verschenen publicaties
H2 Deel deze pagina
H2 Service
H2 Over deze site
H2 Talen
H2 Volg ons
H3 Bevolkingsonderzoek verlaagt sterfte aan darmkanker met bijna 45 procent
H3 Eerste landelijke onderzoek naar PFAS in bloed
H3 Meer nieuws
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are 10 external links on this page.
LinkAttributesAnchor text
https://www.rivm.nl/Anchor Overslaan en naar de inhoud gaan
https://www.rivm.nl/Anchor Direct naar de hoofdnavigatie
https://www.rivm.nl/Subdomain Nederlands
https://www.rivm.nl/enSubdomain English
https://www.rivm.nl/homeHome
https://www.rivm.nl/onderwerpenOnderwerpen
https://www.rivm.nl/over-het-rivmOver RIVM
/publicatieoverzichtPublicaties
https://www.rivm.nl/internationalInternationaal
https://www.rivm.nl/contactContact
https://www.rivm.nl/agendaAgenda
https://www.rivm.nl/Subdomain Text duplicate Nederlands
https://www.rivm.nl/enSubdomain Text duplicate English
/corona/actueel/weekcijfersCorona, actuele cijfers
https://www.rivm.nl/rabiesSubdomain Hondsdolheid (rabiës)
/gordelroos/gordelroosvaccinatieGordelroos, vaccinatie
/impetigo-krentenbaardKrentenbaard
/ziekte-van-lymeZiekte van Lyme
https://www.rivm.nl/nieuwsNieuws
A-TITLE Nieuws
/nieuws/bevolkingsonderzoek-ve...Bevolkingsonderzoek verlaagt sterfte aan darmkanker met bijna 45 procent Het risico om te overlijden aan darmkanker daalde met 45 procent bij degenen die dee...
/nieuws/eerste-landelijke-onde...Eerste landelijke onderzoek naar PFAS in bloed Iedereen in Nederland heeft verschillende soorten PFAS in het bloed. Bij vrijwel iedereen is de hoeveelheid PF...
/nieuws/dit-najaar-nieuwe-vacc...Dit najaar nieuwe vaccinatieronde tegen corona voor risicogroepen
/nieuws/mirjam-luijten-benoemd...Mirjam Luijten benoemd tot bijzonder hoogleraar Humaan-relevante Risicobeoordeling van Chemische Stoffen
/nieuws/nat-jaar-zorgt-voor-la...Nat jaar zorgt voor lage hoeveelheden nitraat onder derogatiebedrijven
/nieuws/dinsdag-1-en-woensdag-...Dinsdag 1 en woensdag 2 juli in Noord-Brabant en Midden-Nederland kans op smog door ozon
/nieuws/vanaf-maandag-30-juni-...Vanaf maandag 30 juni Nationaal Hitteplan actief in het hele land
/nieuws/vanaf-29-juni-nationaa...Vanaf 29 juni Nationaal Hitteplan actief in Limburg en Noord-Brabant
https://www.rivm.nl/nieuwsMeer nieuws
https://www.rivm.nl/nieuwsText duplicate Nieuws
/bestrijdingsmiddelenBestrijdingsmiddelen
A-TITLE Bestrijdingsmiddelen
https://www.rivm.nl/stikstofStikstof
A-TITLE Stikstof
/bevolkingsonderzoeken-en-scre...Bevolkingsonderzoeken en screeningen
A-TITLE Bevolkingsonderzoeken en screeningen
/publicaties/towards-ecologica...Op weg naar een ecologische risicobeoordeling van microplastics voor beleidsdoeleinden
/publicaties/bevolkingsblootst...Bevolkingsblootstelling aan luchtvervuiling 2022 en 2023
/publicaties/verkenning-proxie...Verkenning proxies voor nitraat
/publicaties/uitvoeringstoets-...Uitvoeringstoets naar de toevoeging van ernstige organische cation transporter 2 (OCTN2)-deficiëntie aan de neonatale hielprikscreening
/publicaties/uitvoeringsprakti...De uitvoeringspraktijk van de Wmo. Verschillen in inrichting en uitgaven van gemeenten
/publicaties/protocol-for-syst...Protocol om systematisch data te verzamelen en te evalueren. Onderdeel van het bepalen van gezondheidskundige grenswaarden voor PFAS.
/publicaties/mixture-risk-asse...Manieren om risico's te beoordelen van blootstelling aan PFAS-mengsels via voedsel en drinkwater
/publicaties/methodology-for-h...Methoden om gezondheidskundige grenswaarden voor PFAS (individueel en mengsels) te bepalen
/publicaties/verkenning-vervol...Verkenning vervolg risicobeoordeling toepassing teruggewonnen cellulose - opties voor verfijnen triggerwaarden
https://www.rivm.nl/publicatiesSubdomain Naar alle rapporten en wetenschappelijke artikelen
https://www.facebook.com/share...External Subdomain Facebook
A-TITLE Deel deze pagina via Facebook
https://x.com/intent/post?url=...External X
A-TITLE Deel deze pagina via X
https://www.linkedin.com/shari...External Subdomain LinkedIn
A-TITLE Deel deze pagina via LinkedIn
https://wa.me/send?text=https:...New window External WhatsApp
A-TITLE Deel deze pagina via WhatsApp
https://www.rivm.nl/contactText duplicate Contact
/contact/persinformatiePersinformatie
/werken-bij-rivmWerken bij het RIVM
A-TITLE Werken bij het RIVM
https://www.rivm.nl/klachtenKlachten
/woo-verzoeken-bij-het-rivmWoo-verzoeken bij het RIVM
/contact/zakendoen-met-rivmZakendoen met het RIVM
https://www.rivm.nl/cookiesCookies
https://www.rivm.nl/privacyPrivacy
/toegankelijkheidToegankelijkheid
/disclaimer-copyrightDisclaimer en copyright
/responsible-disclosureResponsible disclosure
/archief-rivmnlWebsite archief
A-TITLE archiefweb.eu
https://www.rivm.nl/enSubdomain Text duplicate English
https://www.rivm.nl/Subdomain Text duplicate Nederlands
https://www.rivm.nl/abonnerenAbonneren nieuwsbrieven
https://www.rivm.nl/rssRSS feed
https://twitter.com/rivmExternal X Twitter
https://www.facebook.com/RIVMnlExternal Subdomain Text duplicate Facebook
https://nl.linkedin.com/compan...External Subdomain Text duplicate LinkedIn
https://www.youtube.com/user/R...External Subdomain Youtube
https://www.instagram.com/rivmnlExternal Subdomain Instagram
https://social.overheid.nl/@rivmExternal Subdomain Mastodon

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.rivm.nl/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is slow (1.35 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
This page loads 6 CSS files. This may affect the page load time negatively.
This page loads 6 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (35 kB).

HTTP Response Header

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External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 2,211 referring domains.
This page has 593,281 backlinks.
This page has backlinks from 1,570 different ip addresses.

Robots.txt

#
# robots.txt
#
# Dit gedeelte is door de beheerder aan te passen!
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# Directories
Disallow: /themes/
# Files
# Paths (clean URLs)
# Paths (no clean URLs)
# External urls
# Custom
# Remove duplicate content from Google index. See D-RIVMweb-57041
Disallow: /*?*
Disallow: /nieuws?
Disallow: /publicaties?
Disallow: /en/publications?
Disallow: /*/pagina?page=*
Disallow: /*/nieuws?page=*
Disallow: /onderwerp/*/onderwerpen*
Disallow: /onderwerp/*/publicaties*
Disallow: /en/onderwerp/*/onderwerpen*
Disallow: /en/onderwerp/*/publicaties*
Disallow: /onderwerp/*/themes*
Disallow: /onderwerp/*/weblog
Disallow: /onderwerp/*/nieuws
Disallow: /onderwerp/*/pagina

Disallow: /weblog?f*
Disallow: /nieuws?f*
Disallow: /en/publications?f*
Disallow: /publicaties?*

Disallow: /en/node/*
Disallow: /node/*
Disallow: /*?utm*
Disallow: /*?CID*
Disallow: /*?origin*
Disallow: /*?document*
Disallow: /*?pk_campaign*
Disallow: /*?fontsize*
Disallow: /*?cameFrom*
Disallow: /en/media/*
Disallow: /en/news?*
Disallow: /en/publications?*
Disallow: /zoeken?*

User-agent: anthropic-ai
Crawl-delay: 60

User-agent: ClaudeBot
Crawl-delay: 60

User-agent: Bytespider
Crawl-delay: 60

User-agent: SemrushBot
Crawl-delay: 60

User-agent: MJ12bot
Crawl-delay: 60

User-agent: barkrowler
Crawl-delay: 60

User-agent: WizenozeBot
Crawl-delay: 60

User-agent: axios
Crawl-delay: 60

User-agent: meta-externalagent
Disallow: /

# EINDE gedeelte beheerder ###############
#
# Newsletter subscribe result status messages
Disallow: /en/aanmeldbevestiging
Disallow: /aanmeldbevestiging
Disallow: /en/aanmelden-mislukt
Disallow: /aanmelden-mislukt
Disallow: /en/reeds-aangemeld
Disallow: /reeds-aangemeld
#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
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Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
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Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed
#
# External urls
Disallow: https://statistiek.rijksoverheid.nl/piwik/js/tracker.php
#
# Custom
Disallow: /agenda/month/*
Disallow: /agenda/maand/*
Disallow: /*?search
#
# Remove duplicate content from Google index. See D-RIVMweb-57041
Disallow: /*?search=*
Disallow: /*?objectid=*
Disallow: /*?sp=*
Disallow: /*?contenttype=*
Disallow: /*?type=*
#
# Custom error pages
Disallow: /en/niet-gevonden
Disallow: /niet-gevonden
#
# Sitemap
Sitemap: https://www.rivm.nl/sitemap.xml
#
# Crawl delay
User-agent: anthropic-ai
Crawl-delay: 60
#
User-agent: ClaudeBot
Crawl-delay: 60
#
User-agent: Bytespider
Crawl-delay: 60
#
User-agent: SemrushBot
Crawl-delay: 60
#
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Crawl-delay: 60
#
User-agent: barkrowler
Crawl-delay: 60
#
User-agent: WizenozeBot
Crawl-delay: 60
#
User-agent: GPTBot
Crawl-delay: 30
#
User-agent: Bingbot
Crawl-delay: 1
#
User-agent: AhrefsBot
Crawl-delay: 30
#
#
# User agent Disallow
User-agent: dotbot
Disallow: /
#
User-agent: fiperbot
Disallow: /
#
#
# Newsletter subscribe result status messages

Most important keywords

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

KeywordResultRecheck
en Milieu65%Check
Volksgezondheid en Milieu64%Check
RIVM63%Check
Volksgezondheid62%Check
Rijksinstituut62%Check
Milieu61%Check
onderzoek46%Check
Nieuws43%Check
Bevolkingsonderzoek42%Check
darmkanker42%Check

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Cookie Policy

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