Underwater-no1-koeln.de - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
89% 
Page structure
49% 
Link structure
66% 
Server
100% 
External factors
45% 
SEO Score
Response time
0.23 s
File size
315.20 kB
Words
926
Media files
21
Number of links
64 internal / 32 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Underwater No1 Köln - SSI Tauchschule - tauchen lernen in Köln
The page title should be shorter than 580 pixels. It is 581 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Tauchsportfachgeschäft und Tauchschule in 50827 Köln Bickendorf. SSI Tauchausbildung vom Schnuppertauchen bis zum Profi Taucher. Tauchen, Schnorcheln, Schwimmen.
The meta description is too long: 1072 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.underwater-no1-koeln.de/
There is a valid canonical link 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
mobile-web-app-capableyes
apple-mobile-web-app-capableyes
viewportinitial-scale=1, minimum-scale=1, maximum-scale=5, viewport-fit=cover
keywordsTauchen in Köln, Tauchen lernen, Tauchschein machen in Köln, SSI Tauchausbildung, Tauchsportfachgeschäft, Tauchschule,  Tauchausrüstung, Tauchcomputer, Tauchanzüge, alles rund ums tauchen, Schwimmen, Schnorcheln, Unterwasser, Atemregler, Tarierjackets, Mares, Seacsub, Subgear, Polaris, Poseidon, Finimeter, Tiefenmesser, Kompasse, Taucheruhren, Schwimmmode, Badeanzug, Badehose, Bikini, Handtücher, Unterwasserkameras, Tauchliteratur
descriptionTauchsportfachgeschäft und Tauchschule in 50827 Köln Bickendorf. SSI Tauchausbildung vom Schnuppertauchen bis zum Profi Taucher. Tauchen, Schnorcheln, Schwimmen.
google-site-verificationwjjKx35ms5P1Nlu3TZXQiqOp4EEb9vO-ScpAnqhszFQ
langde
twitter:cardsummary
twitter:titleUnderwater No1 Köln - SSI Tauchschule - tauchen lernen in Köln
twitter:descriptionTauchsportfachgeschäft und Tauchschule in 50827 Köln Bickendorf. SSI Tauchausbildung vom Schnuppertauchen bis zum Profi Taucher. Tauchen, Schnorcheln, Schwimmen.
twitter:imagehttps://le-cdn.website-editor.net/s/bc234824178f48d5860be570a3a8a4ae/dms3rep/multi/opt/icon_koeln_200_200N-1920w.png?Expires=1727605198&Signature=OOGvPD5c6jgxYJKrk9e6csAdv~Kf3GaZ3S4rcGistYtxSPzFQSXqs6C5uwQflG6UuWaA6lT5Dp37EaQGkXcm-gkcNHqWIHvGQDYwBl1vXy~bqmPEoGo1Q89tzhooq5UsFVRFJRz1UqsXq3Hbef62kgbBKa3rETxUBb1QaJewSQq-XAykyoPuzMLmzBOQ2wsbo9FTJJiowzPme2kxrCSrKHX3V8RsenXGKXqWHdCqBoZVQ45INRJBs9EdZmpB0YFetR~jiSj~p3GCsNBXmAut~INCa18TKJVEA4~2Wcw8ZjdvEN-kC5Ut7YvmZAZwgs37xnlQnH8bVUqLaU5cczUmTA__&Key-Pair-Id=K2NXBXLF010TJW
og:typewebsite
og:descriptionTauchsportfachgeschäft und Tauchschule in 50827 Köln Bickendorf. SSI Tauchausbildung vom Schnuppertauchen bis zum Profi Taucher. Tauchen, Schnorcheln, Schwimmen.
og:titleUnderwater No1 Köln - SSI Tauchschule - tauchen lernen in Köln
og:imagehttps://le-cdn.website-editor.net/s/bc234824178f48d5860be570a3a8a4ae/dms3rep/multi/opt/icon_koeln_200_200N-1920w.png?Expires=1727605198&Signature=OOGvPD5c6jgxYJKrk9e6csAdv~Kf3GaZ3S4rcGistYtxSPzFQSXqs6C5uwQflG6UuWaA6lT5Dp37EaQGkXcm-gkcNHqWIHvGQDYwBl1vXy~bqmPEoGo1Q89tzhooq5UsFVRFJRz1UqsXq3Hbef62kgbBKa3rETxUBb1QaJewSQq-XAykyoPuzMLmzBOQ2wsbo9FTJJiowzPme2kxrCSrKHX3V8RsenXGKXqWHdCqBoZVQ45INRJBs9EdZmpB0YFetR~jiSj~p3GCsNBXmAut~INCa18TKJVEA4~2Wcw8ZjdvEN-kC5Ut7YvmZAZwgs37xnlQnH8bVUqLaU5cczUmTA__&Key-Pair-Id=K2NXBXLF010TJW
Content-typetext/html;charset=UTF-8
charsetutf-8

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Page quality

Content
(Critically important)
These Typos were found:
  • inclusive => inklusive
This page contains 926 words. That's ok.
36.2% 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.
16 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 11.4 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "initial-scale=1, minimum-scale=1, maximum-scale=5, viewport-fit=cover" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
Empty bold or strong tags were found on this page.
Image SEO
(Somewhat important)
2 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
...mj8-OiX0Bdw__&Key-Pair-Id=K2NXBXLF010TJWNo alt attribute provided
...ynpjuS1U6gg__&Key-Pair-Id=K2NXBXLF010TJWNo alt attribute provided
...tJ7irPqq6QQ__&Key-Pair-Id=K2NXBXLF010TJWSSI Tauchchule in Köln
...mw5CS7OLw~A__&Key-Pair-Id=K2NXBXLF010TJWSSI Logo Dive Center und Instructor Training Center
...ck17kG1tY2g__&Key-Pair-Id=K2NXBXLF010TJWUnsere SSI Tauchlehrer bei Underwater No1 Köln
...EGtSyb66h-w__&Key-Pair-Id=K2NXBXLF010TJWZur StartseiteZur Startseite
...iywiHkuMxlA__&Key-Pair-Id=K2NXBXLF010TJWSSI LOGO

Page structure

H1 heading
(Critically important)
Funtauchen
The H1 heading consists of only one word. There should be more information given.
The H1 heading is too short (10 characters). It should be at least 20 Characters long.
Headings
(Important)
There are 38 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 Funtauchen
H2 Unsere Tauchkurse
H2 Unser Geschäft
H2 Werkstatt & Service
H2 Tauchtouren
H2 Unsere Profis
H2 Tauchausrüstung
H3 Schnuppertauchen
H3 Tauchen lernen
H3 Enriched Air NITROX
H3 Tauchen beginnen
H3 Specialty
H3 Dive Pro
H3 Suunto
H3 Oostvoornse Meer
H3 Hemmoor
H3 Sorpesee
H3 Dive4Life
H3 Tauchlehrer/in
H3 Tauchen
H3 Schnorcheln
H3 Schwimmen
H3 Fotografie
H4 Flaschen TÜV
H4 Revision
H4 Reparaturen
H4 Batteriewechsel
H5 (0221) 27 83 570
H5 50827 Köln
H5 Kontaktformular
H5 Newsletter
H5 TAUCHEN & SCHNORCHELN Jeden Freitag über Neuheiten, Angebote, Tauchkurse und Events informiert werden.
H5 OnlineShop
H5 Viele Angebote von Top Markenhersteller findet ihr in unserem Onlineshop. Alles für den Taucher, Schnorchler und Schwimmer.
H5 RECHTLICHES
H5 WEITERE LINKS
H5 KONTAKT
H5 Underwater No.1 Tauchsport GmbH Grüner Brunnenweg 154 50827 Köln Tel.: 0221 - 27 83 570 Kontaktformular
Some anchor texts are used more than once.
8 links don't have an 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 too many external links (32) on this page.

Found links on this page

LinkAttributesAnchor text
https://www.u1tauchshop.de/New window External Subdomain Zum Shop
/Home
/tauchen-beginnenTauchen Beginnen
/schnuppertauchenSchnuppertauchen
/scuba-diverScuba Diver
/owd---tauchen-lernenOpen Water Diver - Tauchen lernen
/open-water-diver---kompaktOpen Water Diver - kompakt
/auffrischungskursAuffrischungskurs
/spezialkurseSpecialty
/dive-proDive Pro
/dive-guideDive Guide
/instructor-training-kursInstructor Training Course
/asistant-instructorAssistant Instructor
/divemaster-crossoverDivemaster Crossover
/taucherarztTaucherarzt
/kursanmeldungKursanmeldung
https://www.underwater-no1-ddo...External Subdomain Tauchsafari
https://www.underwater-no1-ddo...New window External Subdomain Kleine Tauchsafari
https://www.underwater-no1-ddo...New window External Subdomain Bodensee
https://www.underwater-no1-ddo...New window External Subdomain Hemmoor
https://www.underwater-no1-ddo...New window External Subdomain Tagestouren
/tauchreiseanmeldungTauchreiseanmeldung
/tauchkalenderTauchkalender
/freitagstauchen-am-fuehlinger...Funtauchen
/seminar-meeresschutza8b97d2dSeminar Meeresschutz
/geschaeftGeschäft
/garmin-descent-mk1-tauchcompu...Garmin Tauchcomputer
/service-werkstattWerkstatt
/diving-for-futureDiving for Future
/tauchlehrerUnsere Tauchlehrer
/standorteStandorte
/markenhersteller_tauchsportWir führen
/downloadsDownloads
/kontaktKontakt
/schnuppertauchenNo Text
/owd---tauchen-lernenNo Text
/enriched-air-diver---nitroxIMG-ALT SSI Tauchchule in Köln
/tauchen-beginnenNo Text
/tauchen-beginnenButton
/spezialkurseNo Text
/spezialkurseText duplicate Button
/dive-proIMG-ALT Kursübersicht SSI Profi Kurse
/dive-proText duplicate Button
/tauchen-beginnenText duplicate Tauchen Beginnen
/kontaktZur Anmeldung
/freitagstauchen-am-fuehlinger...Text duplicate Funtauchen
/tarierungskurs✓ Perfect Bouyancy
/trockentauchen✓ Dry Suit Diving
/navigation✓ Navigation
/night-diver✓ Night Diving & Limited Visibility*
/markenhersteller_tauchsportHersteller
/geschaeftZum Geschäft
/geschaeftIMG-ALT Große Auswahl an Suunto Tauchcomputer
/geschaeftText duplicate Button
/service-werkstattNo Text
/service-werkstattMehr ...
/service-werkstattNo Text
/service-werkstattText duplicate Mehr ...
/tauchkurse-ddorfText duplicate Mehr ...
/service-werkstattNo Text
/service-werkstattText duplicate Mehr ...
/freitagstauchen-am-fuehlinger...Text duplicate Funtauchen
https://www.underwater-no1-ddo...New window External Subdomain Zu den Tagestouren
https://www.underwater-no1-ddo...New window External Subdomain Anchor IMG-ALT Tauchen im Oostvoornse Meer
https://www.underwater-no1-ddo...External Subdomain Anchor Text duplicate Button
https://www.underwater-no1-ddo...New window External Subdomain IMG-ALT Tauchen in Hemmooor
https://www.underwater-no1-ddo...External Subdomain Text duplicate Button
https://www.underwater-no1-ddo...New window External Subdomain Anchor IMG-ALT Tauchen am Sorpesee
https://www.underwater-no1-ddo...External Subdomain Anchor Text duplicate Button
https://www.underwater-no1-ddo...New window External Subdomain Anchor IMG-ALT Tauchen im Dive4Life
https://www.underwater-no1-ddo...External Subdomain Anchor Text duplicate Button
/tauchlehrerIMG-ALT Unsere SSI Tauchlehrer bei Underwater No1 Köln
/tauchlehrerZum Team
https://www.u1tauchshop.de/New window External Subdomain Zum NEUEN Onlineshop
https://www.u1tauchshop.de/Tau...New window External Subdomain No Text
https://www.u1tauchshop.de/Tau...External Subdomain Schaltfläche
https://www.u1tauchshop.de/Sch...New window External Subdomain No Text
https://www.u1tauchshop.de/Sch...External Subdomain Text duplicate Schaltfläche
https://www.u1tauchshop.de/Sch...New window External Subdomain No Text
https://www.u1tauchshop.de/Sch...External Subdomain Text duplicate Schaltfläche
https://www.u1tauchshop.de/Tau...New window External Subdomain IMG-ALT Shopkategorie Unterwaser Fotografie und Kameras
https://www.u1tauchshop.de/Tau...External Subdomain Text duplicate Schaltfläche
https://goo.gl/maps/JVQ9AYZbKmL2New window External No Text
/kontaktNo Text
https://www.u1tauchshop.de/New window External Subdomain No Text
/IMG-ALT Zur Startseite
https://www.facebook.com/group...New window External Subdomain No Text
https://instagram.com/underwat...New window External No Text
/impressumImpressum
/DatenschutzDatenschutz
/agbAGB
https://www.u1tauchshop.de/External Subdomain No Text
https://www.u1tauchshop.de/New window External Subdomain Onlineshop
http://www.uebbys.com/New window External Subdomain Uebbys
http://www.expedition.underwat...New window External Subdomain Expedition Mexico
/kontaktKontaktformular

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.underwater-no1-koeln.de/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.23 seconds.
The file size of the HTML document is fine (315 kB).

HTTP Response Header

NameValue
content-typetext/html;charset=utf-8
content-length149009
dateSat, 31 Aug 2024 05:55:43 GMT
servernginx
d-cachefrom-cache
content-encodinggzip
content-security-policyframe-ancestors https://*.ionos.com https://*.ionos.at https://*.ionos.co.uk https://*.ionos.de https://*.ionos.es https://*.ionos.fr https://*.ionos.it https://*.ionos.ca https://*.ionos.mx https://*.ionos.us https://*.website-editor.net https://*.mywebsite-editor.com www.underwater-no1-koeln.de
x-content-type-optionsnosniff
varyuser-agent,accept-encoding
cache-controlno-cache, no-store, must-revalidate
expiresThu, 01 Jan 1970 00:00:00 GMT
d-geoEU
statuscode200
http_versionHTTP/2

External factors

This page has only a few links from other websites.
This page only has backlinks from 15 referring domains.
This page only has 1,802 backlinks.
This page only has few backlinks from 15 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

# Sitemap is also available on /sitemap.xml
Sitemap: https://www.underwater-no1-koeln.de/sitemap.xml
User-agent: *

Similar sites

Search preview

www.underwater-no1-koeln.de
Underwater No1 Köln - SSI Tauchschule - tauchen lernen in Köln
Tauchsportfachgeschäft und Tauchschule in 50827 Köln Bickendorf. SSI Tauchausbildung vom Schnuppertauchen bis zum Profi Taucher. Tauchen, Schnorcheln, Schwimmen.

Most important keywords

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

KeywordResultRecheck
Tauchen85%Check
Köln81%Check
Tauchen Schnorcheln70%Check
Tauchen lernen69%Check
50827 Köln68%Check
Underwater No1 Köln67%Check
Underwater65%Check
Underwater No163%Check
Tauchen Beginnen62%Check
SSI61%Check
Show more keywords and terms

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