Marinespecies.org - SEO Checker

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Overview of the SEO Check
Meta information
70% 
Page quality
86% 
Page structure
79% 
Link structure
25% 
Server
31% 
External factors
100% 
SEO Score
Response time
1.45 s
File size
55.90 kB
Words
553
Media files
18
Number of links
54 internal / 5 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
WoRMS - World Register of Marine Species
The length of the page title is perfect. (391 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)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: Belgium
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
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)
HTTP-Header Content-Type: utf-8;
Meta http-equiv Content-Type: utf-8
The specified character encodings are different.
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-verificationK3-dDlqPOhXjZBSl_DXhAQ9y-EoX2OogyHQaUtlaSR4
viewportwidth=device-width, initial-scale=1
theme-color#ffffff
langen
content-typetext/html; charset=UTF-8
X-UA-CompatibleIE=edge

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Page quality

Content
(Critically important)
This page contains 553 words. That's ok.
28.2% 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.
8 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 20.71 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 11 tags for this page.
Image SEO
(Somewhat important)
9 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.
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
/images/layout/worms_logo.pngNo alt attribute provided
/images/layout/worms_logo.pngNo alt attribute provided
...-habitus-author-van-haaren-ton.jpg?w=147Tubificoides heterochaetus habitus, author: van Haaren, Ton, Grontmij | team EcologieTubificoides heterochaetus habitus, author: van Haaren, Ton, Grontmij | team Ecologie
...p-bouchet-2015-author-ng-peter.jpg?w=165Actaea grimaldii Ng & Bouchet, 2015, author: Ng, PeterActaea grimaldii Ng & Bouchet, 2015, author: Ng, Peter
...ranaceus-author-pillon-roberto.jpg?w=147Cerianthus membranaceus, author: Pillon, RobertoCerianthus membranaceus, author: Pillon, Roberto
...heries-and-oceans-canada-moira.jpg?w=147Stylocheiron maximum, author: Fisheries and Oceans Canada, Moira GalbraithStylocheiron maximum, author: Fisheries and Oceans Canada, Moira Galbraith
...h-1850-author-le-coze-fran-ois.jpg?w=150Nonionina inflata Alth, 1850, author: Le Coze, FrançoisNonionina inflata Alth, 1850, author: Le Coze, François
/inc/vliz_news/images/rss.pngrssRSS feed
/inc/vliz_news/images/rss.pngrssRSS feed
...ina Ehrenberg, 1830_M.Plewka_highres.jpgNo alt attribute provided
/images/news/Myxozoa_life_cycle.pngNo alt attribute provided
/images/news/diving_paul_focke_c.JPGNo alt attribute provided
/images/news/IMG_0162.jpgNo alt attribute provided
/images/news/Iridogorgia-corrected.jpgNo alt attribute provided
/images/news/Wim_2.jpgNo alt attribute provided
data:[...] Base64No alt attribute provided

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H2 News
H2 Rotifer World Catalog now available through the Aphia platform
H2 Introducing the World List of Myxozoa
H2 NELOS divers use WoRMS in digital dive log: a step toward citizen science
H2 Awardees for the 2025 WoRMS Achievement & Early Career Researcher Award known
H2 Introducing the World List of Octocorallia, a companion to the World Lists of Actiniaria and Scleractinia
H2 Giving Wim Decock – WoRMS DMT member - a rousing send-off: well-deserved retirement awaits!
H4 WoRMS
H4 Using WoRMS
H4 Tools
H4 Connect with us
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
1 links don't have an anchor text.
There are 6 links with a trivial anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 5 external links on this page.

Found links on this page

LinkAttributesAnchor text
/index.phpNo Text
/index.phpHome
/about.phpAbout
/subregisters.phpSubregisters
/users.phpUsers
/photogallery.phpPhotogallery
/documents.phpDocuments
/lifewatch.phpLifeWatch
/contribute.phpContribute
/aphia.php?p=search&adv=1Advanced search
/aphia.php?p=searchTaxa
/aphia.php?p=sourcesLiterature
/aphia.php?p=checklistDistribution
/aphia.php?p=specimensSpecimen
/aphia.php?p=editorsEditors
/aphia.php?p=statsStatistics
/aphia.php?p=matchMatch taxa
/aphia.php?p=webserviceWebservices
/aphia.php?p=browserTaxon tree
/aphia.php?p=idkeysIDKeys
/aphia.php?p=manualManual
/aphia.php?p=login&decodetype=...Log in
/photogallery.php?album=5163&p...IMG-ALT Tubificoides heterochaetus habitus, author: van Haaren, Ton, Grontmij | team Ecologie
/photogallery.php?album=5163&p...IMG-ALT Actaea grimaldii Ng & Bouchet, 2015, author: Ng, Peter
/photogallery.php?album=5163&p...IMG-ALT Cerianthus membranaceus, author: Pillon, Roberto
/photogallery.php?album=5163&p...IMG-ALT Stylocheiron maximum, author: Fisheries and Oceans Canada, Moira Galbraith
/photogallery.php?album=5163&p...IMG-ALT Nonionina inflata Alth, 1850, author: Le Coze, François
/aphia.php?p=rssNew window IMG-ALT rss
/about.phpSee more details and citation guidelines
/news.php?p=rssText duplicate IMG-ALT rss
/news.php?p=show&id=9436Trivial anchor text
Read more
/news.php?p=show&id=9435Text duplicate Trivial anchor text
Read more
/news.php?p=show&id=9432Text duplicate Trivial anchor text
Read more
/news.php?p=show&id=9428Text duplicate Trivial anchor text
Read more
/news.php?p=show&id=9424Text duplicate Trivial anchor text
Read more
/news.php?p=show&id=9422Text duplicate Trivial anchor text
Read more
/news.php?p=addAdd
/news.php?p=show&more=1Older news...
/aphia.php?p=editorsNew window WoRMS editors 357
/users.phpNew window Registered institutional users 425
/aphia.php?p=statsNew window Webhits 142 629 626 (In 2024)
/wormsliterature.phpNew window Citations Loading...
/about.phpWhat is WoRMS
/lifewatch.phpWhat is LifeWatch
/subregisters.phpText duplicate Subregisters
/about.phpPartners
/about.phpWoRMS users
/wormsliterature.phpWoRMS in literature
/about.phpCiting WoRMS
/about.phpTerms of use
/usersrequest.phpRequest access
/aphia.php?p=matchWoRMS Match Taxa
https://www.lifewatch.be/data-...New window External Subdomain LifeWatch Match Taxa
/aphia.php?p=webserviceText duplicate Webservices
https://twitter.com/WRMarineSp...New window Nofollow External Twitter page
/aphia.php?p=rssNew window RSS Feed
http://www.lifewatch.be/New window External Subdomain Learn more»
http://www.vliz.be/New window External Subdomain Flanders Marine Institute
http://www.vliz.be/privacyNew window External Subdomain Privacy and cookie policy

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://marinespecies.org/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time is slow (1.45 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.
The file size of the HTML document is fine (56 kB).

HTTP Response Header

NameValue
dateTue, 05 Aug 2025 09:13:06 GMT
serverApache/2.4.62 (Win64)
content-security-policyupgrade-insecure-requests; script-src * 'unsafe-inline' 'unsafe-eval' blob:; object-src *; frame-ancestors 'self' www.vliz.be vliz.be form.vliz.be www.omes-monitoring.be omes-monitoring.be;
cross-origin-opener-policysame-origin
content-typetext/html; charset=UTF-8;
set-cookie28 Characters
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 200 referring domains.
This page has 764 backlinks.
This page has backlinks from 116 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Disallow: /structure
Disallow: /export
Crawl-delay: 1

Similar sites

Search preview

Most important keywords

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

KeywordResultRecheck
marine64%Check
Marine Species64%Check
species63%Check
WoRMS58%Check
World54%Check
World Register54%Check
Log53%Check
Register51%Check
World List48%Check
Rotifer World Catalog47%Check
Show more keywords and terms

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