Cmas.ch - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
65% 
Page structure
79% 
Link structure
86% 
Server
91% 
External factors
76% 
SEO Score
Response time
0.31 s
File size
30.90 kB
Words
452
Media files
8
Number of links
73 internal / 29 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Home – CMAS – Swiss diving
The length of the page title is perfect. (268 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is empty.
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: de
Language defined in HTML: de
Server location: United States of America
The following language is defined by HTML: de
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)
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
keywordsEmpty
descriptionEmpty
viewportwidth=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=0
apple-mobile-web-app-titleCMAS
application-nameCMAS
msapplication-TileColor#ffffff
msapplication-TileImage/img/favicons/mstile-144x144.png?v=aljqXvwaOq
msapplication-config/img/favicons/browserconfig.xml?v=aljqXvwaOq
theme-color#e30613
langde
og:image/img/favicons/open-graph.png?v=aljqXvwaOq
charsetUTF-8

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Page quality

Content
(Critically important)
There are only 452 words on this page. Good pages should have about 800 words of useful content.
29.4% 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.
4 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 13.29 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=0" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The amount of tags is very high (14). We recommend using a maximum of 9 tags for this page.
The following tag is repeated too often: besuchen sie unseren online-shop
Image SEO
(Somewhat important)
7 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
https://www.cmas.ch/img/logo.svgCMAS – Swiss Diving
...t/sponsoren/logo_sftech.png?m=1742580741No alt attribute provided
...tent/sponsoren/flextron.png?m=1742581610No alt attribute provided
...longee.ch-votre-magasin.jpg?m=1742581633No alt attribute provided
...ntent/sponsoren/dawata1.jpg?m=1742580742No alt attribute provided
...nt/sponsoren/diving4all.jpg?m=1742580710No alt attribute provided
...ren/looping-creation-ch.png?m=1742581919No alt attribute provided
/img/content/sponsoren/H2O.jpg?m=1742580740No 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 Tauchen lernen
H2 Tauchlehrer werden
H2 CMAS Kurse
H2 CMAS Blog
H2 Diving Day im Verkehrshaus Luzern
H2 Cours de Biologie aquatique (FR)
H2 CMAS Europe feiert den Frauentag 2025
H2 Sponsoren
H3 Willkommen bei CMAS swiss diving
H3 Gold
H3 Silver
H4 CMAS swiss diving
Some anchor texts are used more than once.
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 too many external links (29) on this page.

Found links on this page

LinkAttributesAnchor text
https://www.cmas.ch/de/home/IMG-ALT CMAS – Swiss Diving
/de/blog/index.phpBlog
/de/ueber-uns/philosphie.phpÜber uns
/de/for-you/tl-ts-des-jahres.phpFor you
/de/downloads/index.phpVideos & Downloads
/de/faq/anfaenger.phpFAQ
https://www.shop.cmas.ch/New window External Subdomain Shop
https://my.cmas.ch/New window External Subdomain Login Diver Area
https://my.cmas.ch/de/login-in...New window External Subdomain Login my.cmas
/de/suche/index.phpSuche
/de/home/index.phpDE
/fr/home/index.phpFR
/it/home/index.phpIT
https://www.facebook.com/CMAS....New window External Subdomain No Text
https://www.instagram.com/cmas...External Subdomain No Text
/de/tauchen-lernen/index.phpTauchen lernen
/de/tauchen-lernen/tauchen-bei...Tauchen bei CMAS swiss diving
/de/tauchen-lernen/index.phpÜbersicht
/de/tauchen-lernen/kursuebersi...Kursübersicht
/de/tauchen-lernen/kindertauch...Kindertauchen
/de/tauchen-lernen/taucher-d1-...Taucher D1-D4
/de/tauchen-lernen/spezialkurs...Spezialkurse
/de/tauchen-lernen/spezialkurs...Spezialkurse ohne Tauchausbildung
/de/tauchen-lernen/skills-dive...Skills Diver
/de/tauchen-lernen/nitrox-dive...Nitrox Diver
/de/tauchen-lernen/trimix-dive...Trimix Diver
/de/tauchen-lernen/cave-diver/...Cave Diver
/de/tauchen-lernen/sidemount-d...Sidemount Diver
/de/tauchen-lernen/rebreather-...Rebreather Diver
/de/tauchen-lernen/wreck-diver...Wreck Diver
/de/tauchen-lernen/dpv-diver/d...DPV Diver
/de/Tauchen-lernen/Apnoe-Diver...Apnoe Diver
/de/tauchen-lernen/handicapped...Handicapped Diver
/de/tauchen-lernen/handicap-di...Handicap Diving Assistant
/de/instruktor-werden/index.phpInstruktor werden
/de/instruktor-werden/kursuebe...Kursübersicht Instruktor
/de/instruktor-werden/uebertri...Crossoverkurse
/de/instruktor-werden/kinderta...Assistent und Instruktor Kindertauchen
/de/instruktor-werden/instrukt...Instruktor I1-I4
/de/instruktor-werden/spezialk...Spezialkurs Instructors
/de/instruktor-werden/skills-i...Skills Instructor
/de/instruktor-werden/nitrox-i...Nitrox Instructor
/de/instruktor-werden/trimix-i...Trimix Instructor
/de/instruktor-werden/cave-div...Cave Diving Instructor
/de/instruktor-werden/sidemoun...Sidemount Instructor
/de/instruktor-werden/rebreath...Rebreather Instructor
/de/instruktor-werden/wreck-in...Wreck Instructor
/de/instruktor-werden/dpv-inst...DPV Instructor
/de/instruktor-werden/apnoe-in...Apnoe Instructor
/de/instruktor-werden/uw-foto-...UW Foto Instructor
/de/instruktor-werden/handicap...Handicap Dive Instructor
/de/kurse/tauch-kurse/index.phpCMAS Kurse
/de/kurse/tauch-kurse/index.phpTauch-Kurse
/de/kurse/instruktor-kurse/i1.phpInstruktor-Kurse
/de/tauchschule-tauchlehrer/in...Tauchschulen & Instruktor finden
/de/tauchschule-tauchlehrer/in...In der Schweiz
/de/tauchschule-tauchlehrer/im...Im Ausland
/de/blog/index.phpText duplicate Blog
/de/ueber-uns/philosphie.phpText duplicate Über uns
/de/for-you/tl-ts-des-jahres.phpText duplicate For you
/de/downloads/index.phpText duplicate Videos & Downloads
/de/faq/anfaenger.phpText duplicate FAQ
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Shop
https://my.cmas.ch/New window External Subdomain Text duplicate Login Diver Area
https://my.cmas.ch/de/login-in...New window External Subdomain Text duplicate Login my.cmas
/de/suche/index.phpText duplicate Suche
/de/home/index.phpText duplicate DE
/fr/home/index.phpText duplicate FR
/it/home/index.phpText duplicate IT
https://www.shop.cmas.ch/New window External Subdomain Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
https://www.shop.cmas.ch/New window External Subdomain Text duplicate Online-Shop
/de/tauchen-lernen/index.phpText duplicate Tauchen lernen
/de/instruktor-werden/index.phpTauchlehrer werden
/de/kurse/tauch-kurse/index.phpText duplicate CMAS Kurse
/de/blog/index.phpCMAS Blog
/de/blog/Post/2025/03/diving-d...Diving Day im Verkehrshaus Luzern
/de/blog/Post/2025/03/biologie...Cours de Biologie aquatique (FR)
/de/blog/Post/2025/03/womans-d...CMAS Europe feiert den Frauentag 2025
https://www.sftech.ch/New window External Subdomain No Text
https://www.flextron.ch/New window External Subdomain No Text
https://plongee.ch/New window External No Text
https://www.dawata.ch/New window External Subdomain No Text
https://www.diving4all.ch/New window External Subdomain No Text
https://www.looping-creation.ch/New window External Subdomain No Text
https://www.tauchschule-h2o.ch/New window External Subdomain No Text
/de/sponsoren/index.phpSponsoren
/de/impressum.phpImpressum
/de/sitemap.phpSitemap
/de/disclaimer.phpDisclaimer
/de/datenschutz.phpDatenschutz

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.cmas.ch/de/home/"
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.31 seconds.
The file size of the HTML document is fine (31 kB).

HTTP Response Header

NameValue
servernginx
dateFri, 04 Apr 2025 18:08:39 GMT
content-typetext/html; charset=UTF-8
content-length5953
x-powered-byPHP/8.3.19
expiresThu, 19 Nov 1981 08:52:00 GMT
cache-controlno-store, no-cache, must-revalidate
pragmano-cache
set-cookie76 Characters
x-frame-optionsSAMEORIGIN
varyAccept-Encoding
content-encodinggzip
x-ua-compatibleIE=edge
statuscode200
http_versionHTTP/2

External factors

This page has only a few links from other websites.
This page only has backlinks from 22 referring domains.
This page only has 89 backlinks.
This page only has few backlinks from 10 different ip addresses.
This page is referenced by wikipedia.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Disallow: /webEdition/
Disallow: /cgi-bin/
Disallow: /inc/
Disallow: /tools/

Sitemap: https://www.cmas.ch/sitemap.xml.php

Similar sites

Search preview

www.cmas.ch › home
Home – CMAS – Swiss diving

Most important keywords

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

KeywordResultRecheck
cmas59%Check
diving58%Check
CMAS swiss diving58%Check
swiss56%Check
Diving Day50%Check
Cave Diving48%Check
Diving Instructor48%Check
CMAS Europe47%Check
Shop39%Check
Besuchen39%Check
Show more keywords and terms

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