Wsl.ch - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
88% 
Page structure
79% 
Link structure
72% 
Server
89% 
External factors
100% 
SEO Score
Response time
0.15 s
File size
52.30 kB
Words
597
Media files
14
Number of links
46 internal / 22 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Eidg. Forschungsanstalt WSL
The length of the page title is perfect. (265 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Die Eidg. Forschungsanstalt WSL untersucht Wald, Landschaft, Biodiversität, Naturgefahren sowie Schnee und Eis. Sie gehört zum ETH-Bereich.
The length of the meta description is perfect. (896 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.wsl.ch/de/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: de
Language defined in HTML: de-ch
Language defined in meta tags: de-ch
Language defined in HTTP-Equiv meta tag: de-ch
Server location: Switzerland
The following language is defined by HTML: de-ch
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
generatorTYPO3 CMS
descriptionDie Eidg. Forschungsanstalt WSL untersucht Wald, Landschaft, Biodiversität, Naturgefahren sowie Schnee und Eis. Sie gehört zum ETH-Bereich.
robotsindex,follow
keywordsWald, Landschaft, Biodiversität, Naturgefahren, Schnee und Eis
viewportwidth=device-width, initial-scale=1.0
google-site-verificationjsnMZw16anmFYGVnAVynva8gNugMJfYgf_iRLgf1S-A
languagede-CH
format-detectiontelephone=no
copyright2025
apple-mobile-web-app-titleEmpty
langde-ch
twitter:cardsummary
twitter:titleEidg. Forschungsanstalt WSL
twitter:descriptionDie Eidg. Forschungsanstalt WSL untersucht Wald, Landschaft, Biodiversität, Naturgefahren sowie Schnee und Eis. Sie gehört zum ETH-Bereich.
og:typewebsite
og:titleEidg. Forschungsanstalt WSL
og:descriptionDie Eidg. Forschungsanstalt WSL untersucht Wald, Landschaft, Biodiversität, Naturgefahren sowie Schnee und Eis. Sie gehört zum ETH-Bereich.
og:urlhttps://www.wsl.ch/de/
content-languagede-CH
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 597 words. That's ok.
30.2% 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.
11 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 12.78 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1.0" is provided.
At least one Apple touch icon is specified.
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 12 tags for this page.
Image SEO
(Somewhat important)
11 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
/fileadmin/logos/WSL-Logo.svgNo alt attribute provided
/fileadmin/logos/WSL-Logo-Print.svgPrint Logo
...nche_bulletin/home/teaser.gif?1747839606Avalanche Bulletin
...csm_LWF_Othmarsingen_1920_eee67f2cf8.jpgWaldbeobachtungsfläche (Level-II) in Othmarsingen/Schweiz. Foto: WSL/Gottardo Pestalozzi
...riel_bergamini_gespiegelt_fa29c74aab.jpgNo alt attribute provided
...hwarzhorn_Zehnder_Michael_a1731cbc44.jpgNo alt attribute provided
...d_/b/6/csm_Obstbaeume1946_a554ec4837.jpgNo alt attribute provided
..._Felssturz_Mel_de_la_Niva_a307a44bef.jpgNo alt attribute provided
.../csm_Wasser_Antarktis_ETH_e87127c1af.jpgNo alt attribute provided
..._/e/8/csm_Z62_6257_-_Copy_9ec13805f5.jpgNo alt attribute provided
...025-04-11_AuraLab_25-Para_638af77a44.jpgNo alt attribute provided
...sed_/e/c/csm_ponded_lakes_82f19ceb48.jpgNo alt attribute provided
.../2/5/csm_20250106_NBuechi_2a7dea12c2.jpgNo alt attribute provided
...m_Footer_diagonal_DE_24_2_5159a0a722.pngNo 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 Hauptnavigation
H2 Metanavigation
H2 Mobile Navigation
H2 Forschen für Mensch und Umwelt in einer Welt im Wandel ¶
H2 Sprachmenü
H2 Footernavigation
H4 News
H4 Bergsturz, Steinschlag und Co.: FAQ und Dossier
H4 Wie Fluten unter dem Eis zur Schmelze beitragen
H4 Auf der Suche nach der Vergangenheit in Baumringen
H4 Urbane Grünflächen sind Erholungsinseln
H4 Wenn ein Fluss schneller schmilzt als erwartet
H4 So war der Winter
H4 Veranstaltungen
H4 Sicher bestimmen im Feld – mit KI zur Zweitmeinung
H4 Increasing biodiversity to promote adaptation and resilience of European forests by using close to nature forestry
H4 Angewandte Naturschutzgenetik für die Praxis
H4 Websites der WSL
Some anchor texts are used more than once.
9 links don't have an anchor text.
There are 3 links with a trivial anchor text.
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 22 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.wsl.ch/de/No Text
https://www.wsl.ch/de/wald/Wald
https://www.wsl.ch/de/landschaft/Landschaft
/de/biodiversitaet/Biodiversität
/de/naturgefahren/Naturgefahren
/de/schnee-und-eis/Schnee und Eis
/de/metanavigation/im-fokus/Im Fokus
/de/ueber-die-wsl/Über die WSL
/de/ueber-die-wsl/arbeiten-an-...Jobs und Karriere
/de/ueber-die-wsl/projekte/Projekte
/de/ueber-die-wsl/publikationen/Publikationen
/de/ueber-die-wsl/services-und...Services und Produkte
https://www.wsl.ch/de/suche/Suche
A-TITLE Suche
https://www.wsl.ch/de/suche/Text duplicate Suche
A-TITLE Suche
https://whiterisk.ch/de/condit...External Lawinenbulletin und Schneesituation Ausgabe: Mi. 21.5., 17:00
IMG-ALT Avalanche Bulletin
/de/news/langzeitforschung-40-...Trivial anchor text
weiterlesen
/de/news/langzeitforschung-40-...IMG-ALT Waldbeobachtungsfläche (Level-II) in Othmarsingen/Schweiz. Foto: WSL/Gottardo Pestalozzi
/de/news/langzeitforschung-40-...No Text
/de/news/moose-grosses-im-klei...Text duplicate Trivial anchor text
weiterlesen
/de/news/moose-grosses-im-klei...No Text
/de/news/moose-grosses-im-klei...No Text
https://www.slf.ch/de/publikat...New window External Subdomain Text duplicate Trivial anchor text
weiterlesen
https://www.slf.ch/de/publikat...New window External Subdomain No Text
https://www.slf.ch/de/publikat...New window External Subdomain No Text
/de/news/von-luftbildern-der-n...Text duplicate Trivial anchor text
weiterlesen
/de/news/von-luftbildern-der-n...No Text
/de/news/von-luftbildern-der-n...No Text
/de/replaced-with-js
A-TITLE Link zum Titel
/de/ueber-die-wsl/news/news/News
https://www.slf.ch/de/naturgef...New window External Subdomain No Text
https://www.slf.ch/de/naturgef...New window External Subdomain Bergsturz, Steinschlag und Co.: FAQ und Dossier
https://ethz.ch/de/news-und-ve...New window External No Text
https://ethz.ch/de/news-und-ve...New window External Wie Fluten unter dem Eis zur Schmelze beitragen
/de/news/auf-der-suche-nach-de...No Text
/de/news/auf-der-suche-nach-de...Auf der Suche nach der Vergangenheit in Baumringen
/de/news/urbane-gruenflaechen-...No Text
/de/news/urbane-gruenflaechen-...Urbane Grünflächen sind Erholungsinseln
/de/news/wenn-ein-fluss-schnel...No Text
/de/news/wenn-ein-fluss-schnel...Wenn ein Fluss schneller schmilzt als erwartet
https://www.slf.ch/de/lawinenb...New window External Subdomain No Text
https://www.slf.ch/de/lawinenb...New window External Subdomain So war der Winter
/de/ueber-die-wsl/news/news/Alle News
/de/ueber-die-wsl/veranstaltun...Veranstaltungen
/de/veranstaltungen-und-kurse/...Sicher bestimmen im Feld – mit KI zur Zweitmeinung
/de/veranstaltungen-und-kurse/...Increasing biodiversity to promote adaptation and resilience of European forests by using close to nature forestry
/de/veranstaltungen-und-kurse/...Angewandte Naturschutzgenetik für die Praxis
/de/ueber-die-wsl/veranstaltun...Alle Veranstaltungen
https://www.wsl.ch/de/Deutsch
A-TITLE Sprache auf Deutsch wechseln
https://www.wsl.ch/fr/Français
A-TITLE Passer à la version française
https://www.wsl.ch/it/Italiano
A-TITLE Andare alla versione italiana
https://www.wsl.ch/en/English
A-TITLE Go to English version
/de/ueber-die-wsl/standorte/Standorte
/de/ueber-die-wsl/mitarbeitende/Mitarbeitende
/de/ueber-die-wsl/news/News und Medien
/de/ueber-die-wsl/rechtliches/Rechtliches
https://www.youtube.com/user/W...New window External Subdomain Youtube
A-TITLE Youtube
https://www.linkedin.com/compa...New window External Subdomain Linkedin
A-TITLE Linkedin
https://bsky.app/profile/wslre...New window External Bluesky
A-TITLE Bluesky
https://www.instagram.com/wslr...New window External Subdomain Instagram
A-TITLE Instagram
https://www.slf.ch/New window External Subdomain SLF
A-TITLE SLF
/de/publikationen/klein-aber-o...No Text
https://www.waldwissen.net/New window External Subdomain waldwissen.net
https://waldschutz.wsl.ch/de/New window External Subdomain waldschutz.wsl.ch
https://www.lfi.ch/New window External Subdomain lfi.ch
https://www.envidat.ch/New window External Subdomain envidat.ch
https://www.drought.ch/de/New window External Subdomain drought.ch
https://totholz.wsl.ch/de/New window External Subdomain totholz.ch
https://www.slf.ch/de/New window External Subdomain slf.ch

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.wsl.ch/de/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
This page loads 4 CSS files. This may affect the page load time negatively.
The page response time is excellent with 0.15 seconds.
This page only loads 2 JavaScript files. That's good!
The file size of the HTML document is fine (52 kB).

HTTP Response Header

NameValue
dateWed, 21 May 2025 15:29:24 GMT
servernginx/1.18.0 (Ubuntu)
strict-transport-securitymax-age=63072000
content-typetext/html; charset=utf-8
content-languagede
cache-controlprivate, no-store
content-encodinggzip
transfer-encodingchunked
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 70 referring domains.
This page has 3,497 backlinks.
This page has backlinks from 63 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

Allow: /                                      # Allow bot to enter
Disallow: /typo3/                             # Nothing to see here
Disallow: /*?id=*                             # Disable non-realurl
Disallow: /*&L=*                              # Disable non-realurl

Similar sites

Search preview

www.wsl.ch
Eidg. Forschungsanstalt WSL
Die Eidg. Forschungsanstalt WSL untersucht Wald, Landschaft, Biodiversität, Naturgefahren sowie Schnee und Eis. Sie gehört zum ETH-Bereich.

Most important keywords

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

KeywordResultRecheck
WSL71%Check
Forschungsanstalt WSL64%Check
Eidg58%Check
Forschungsanstalt58%Check
Forschung58%Check
Landschaft WSL58%Check
Eis50%Check
Wald48%Check
ETH48%Check
Schnee46%Check
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