Wsl.ch - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
85% 
Page structure
79% 
Link structure
63% 
Server
89% 
External factors
100% 
SEO Score
Response time
0.19 s
File size
51.10 kB
Words
619
Media files
14
Number of links
53 internal / 12 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Swiss Federal Research Institute WSL
The length of the page title is perfect. (343 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The Swiss Federal Research Institute WSL studies forest, landscape, biodiversity, natural hazards and snow and ice. It is part of the ETH Domain.
The length of the meta description is perfect. (897 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/en/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Language defined in meta tags: en-us
Language defined in HTTP-Equiv meta tag: en-us
Server location: United States of America
The following language is defined by HTML: en-us
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
descriptionThe Swiss Federal Research Institute WSL studies forest, landscape, biodiversity, natural hazards and snow and ice. It is part of the ETH Domain.
robotsindex,follow
viewportwidth=device-width, initial-scale=1.0
google-site-verificationjsnMZw16anmFYGVnAVynva8gNugMJfYgf_iRLgf1S-A
languageen-US
format-detectiontelephone=no
copyright2025
langen-us
twitter:cardsummary
twitter:titleSwiss Federal Research Institute WSL
twitter:descriptionThe Swiss Federal Research Institute WSL studies forest, landscape, biodiversity, natural hazards and snow and ice. It is part of the ETH Domain.
og:typewebsite
og:titleSwiss Federal Research Institute WSL
og:descriptionThe Swiss Federal Research Institute WSL studies forest, landscape, biodiversity, natural hazards and snow and ice. It is part of the ETH Domain.
og:urlhttps://www.wsl.ch/en/
content-languageen-US
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 619 words. That's ok.
28.3% 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.
12 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 15.61 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1.0" is provided.
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)
10 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?1745852406Avalanche Bulletin
...d_/b/6/csm_Obstbaeume1946_a554ec4837.jpgNo alt attribute provided
...4.0_via_Wikimedia_Commons_76c8708e14.jpgDer Lac Brenet (VD) im Trockensommer 2018. (Foto: Neez, CC BY-SA 4.0 via Wikimedia Commons)
...c/csm_Gornergletscher1930_9042b361e5.pngNo alt attribute provided
...echy_CaroleParodi_MD-4995_8fedd056a9.jpgNo alt attribute provided
...sed_/e/c/csm_ponded_lakes_82f19ceb48.jpgNo alt attribute provided
.../8/5/csm_Bild3_Toni-Areal_7e03cd9253.jpgNo alt attribute provided
...rocessed_/d/0/csm_GB_2024_6410a30200.jpgNo alt attribute provided
...06-Giswil-002_SimonSpeich_b78197985d.jpgDer Wald erfüllt viele Funktionen für Mensch und Umwelt. (Foto: Simon Speich)
...pusilla_0700_von_Veronika_4f838439b0.jpgNo alt attribute provided
...d_ecran_2025-02-11_112330_c72321924f.pngNo alt attribute provided
...m_Footer_diagonal_EN_24_2_38d16e358a.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 Research for people and the environment in a changing world ¶
H2 Language menu
H2 Footernavigation
H4 News
H4 When a River Melts Faster Than Expected
H4 Nature in the city needs interconnected habitats
H4 WSL Annual Report 2024
H4 Forest Report 2025: Swiss forests under pressure
H4 “Snow and blueberry pie are connected.”
H4 Women in Science Day at WSL
H4 Events
H4 Forstliche Erschliessung in den Voralpen und Alpen – was liegt noch drin?
H4 Tree health - from Cities to Forests, a IUFRO Div. 7 Working Parties Conference
H4 Increasing biodiversity to promote adaptation and resilience of European forests by using close to nature forestry
H4 WSL websites
Some anchor texts are used more than once.
12 links don't have an anchor text.
There are 4 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 12 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.wsl.ch/en/No Text
https://www.wsl.ch/en/forest/Forest
https://www.wsl.ch/en/landscape/Landscape
/en/biodiversity/Biodiversity
/en/natural-hazards/Natural hazards
/en/snow-and-ice/Snow and Ice
/en/metanavigation/focus/Focus
https://www.wsl.ch/en/about-wsl/About WSL
/en/about-wsl/working-at-the-w...Jobs and careers
/en/about-wsl/projects/Projects
/en/about-wsl/publications/Publications
/en/about-wsl/services-and-pro...Services and products
https://www.wsl.ch/en/search/Search
A-TITLE Search
https://www.wsl.ch/en/search/Text duplicate Search
A-TITLE Search
https://whiterisk.ch/en/condit...External Avalanche bulletin and snow situation Edition: Mon 28.4., 17:00
IMG-ALT Avalanche Bulletin
/en/news/from-post-war-aerial-...Trivial anchor text
read more
/en/news/from-post-war-aerial-...No Text
/en/news/from-post-war-aerial-...No Text
/en/news/investigating-the-unt...Text duplicate Trivial anchor text
read more
/en/news/investigating-the-unt...IMG-ALT Der Lac Brenet (VD) im Trockensommer 2018. (Foto: Neez, CC BY-SA 4.0 via Wikimedia Commons)
/en/news/investigating-the-unt...No Text
/en/news/switzerlands-glaciers...Text duplicate Trivial anchor text
read more
/en/news/switzerlands-glaciers...No Text
/en/news/switzerlands-glaciers...No Text
/en/news/are-gone-wild-grapevi...Text duplicate Trivial anchor text
read more
/en/news/are-gone-wild-grapevi...No Text
/en/news/are-gone-wild-grapevi...No Text
/en/replaced-with-js
A-TITLE Link to this headline
/en/about-wsl/news/news/News
/en/news/when-a-river-melts-fa...No Text
/en/news/when-a-river-melts-fa...When a River Melts Faster Than Expected
/en/news/green-roofs-and-ponds...No Text
/en/news/green-roofs-and-ponds...Nature in the city needs interconnected habitats
/en/about-wsl/facts-and-figures/New window No Text
/en/about-wsl/facts-and-figures/New window WSL Annual Report 2024
/en/news/forest-report-2025-sw...IMG-ALT Der Wald erfüllt viele Funktionen für Mensch und Umwelt. (Foto: Simon Speich)
/en/news/forest-report-2025-sw...Forest Report 2025: Swiss forests under pressure
/en/news/snow-and-blueberry-pi...No Text
/en/news/snow-and-blueberry-pi...“Snow and blueberry pie are connected.”
https://vimeo.com/1055507521?s...New window External Anchor No Text
https://vimeo.com/1055507521?s...New window External Anchor Women in Science Day at WSL
/en/about-wsl/news/news/All news
/en/about-wsl/events-and-courses/Events
/en/events-and-courses/forstli...Forstliche Erschliessung in den Voralpen und Alpen – was liegt noch drin?
/en/events-and-courses/tree-he...Tree health - from Cities to Forests, a IUFRO Div. 7 Working Parties Conference
/en/events-and-courses/increas...Increasing biodiversity to promote adaptation and resilience of European forests by using close to nature forestry
/en/about-wsl/events-and-courses/All Events
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
/en/about-wsl/locations/Locations
/en/about-wsl/staff/Staff
/en/about-wsl/news/News and Media
/en/about-wsl/terms-and-condit...Terms and conditions
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
/en/publications/small-but-wow...No Text
https://www.waldwissen.net/New window External Subdomain waldwissen.net
https://www.lfi.ch/New window External Subdomain lfi.ch
https://www.envidat.ch/New window External Subdomain envidat.ch
https://www.slf.ch/en/New window External Subdomain slf.ch

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.wsl.ch/en/"
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 0.19 seconds.
This page only loads 2 JavaScript files. That's good!
The file size of the HTML document is fine (51 kB).

HTTP Response Header

NameValue
dateMon, 28 Apr 2025 19:56:33 GMT
servernginx/1.18.0 (Ubuntu)
strict-transport-securitymax-age=63072000
content-typetext/html; charset=utf-8
content-languageen
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 101 referring domains.
This page has 12,789 backlinks.
This page has backlinks from 91 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

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Search preview

www.wsl.ch
Swiss Federal Research Institute WSL
The Swiss Federal Research Institute WSL studies forest, landscape, biodiversity, natural hazards and snow and ice. It is part of the ETH Domain.

Most important keywords

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

KeywordResultRecheck
WSL73%Check
WSL Institute67%Check
Research Institute WSL65%Check
Federal Research Institute WSL64%Check
Research62%Check
Swiss62%Check
Landscape Research WSL61%Check
Swiss Federal60%Check
Research Institute60%Check
Swiss Federal Research Institute60%Check
Show more keywords and terms

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