Sns.uba.de - SEO Checker

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Overview of the SEO Check
Meta information
58% 
Page quality
48% 
Page structure
100% 
Link structure
96% 
Server
100% 
External factors
15% 
SEO Score
Response time
0.17 s
File size
7.10 kB
Words
226
Media files
2
Number of links
23 internal / 3 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
SNS Portal
The page title is too short. (100 pixels of 580 max pixel length) Optimize title
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: 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)
No favicon is linked in the HTML code.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1.0
csrf-paramauthenticity_token
csrf-token1qf_IbzHzroWoBbQzya2LMOFxsYjC7Z5oIKi-ITQiBnubPFxiLUdrLCOlRbeZ9rpOJsSC40-U-eyk_IHq388Og
langde

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Page quality

Content
(Critically important)
There are only 226 words on this page. Use at least 250 words to provide useful information.
Words from the H1 heading are not used in the page content.
30.5% of the text are stop words.
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 18.25 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.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 6 tags for this page.
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
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
...and-9383e6bd0abe4d43a1f4ab9a39167f38.pngUmweltbundesamt Logo
...and-9383e6bd0abe4d43a1f4ab9a39167f38.pngLogo des UBA — Umweltbundesamt

Page structure

H1 heading
(Critically important)
Semantischer Netzwerkservice SNS
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Semantischer Netzwerkservice SNS
H2 Integrierte Anwendungen und Dienste
H2 Über
H2 Anwendungen & Dienste
H2 Links
H3 Umweltthesaurus UMTHES
H3 Ähnliche Begriffe
H3 Textverschlagwortung
H3 API-Dokumentation
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 3 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://sns.uba.de/Start
https://sns.uba.de/umthesUmweltthesaurus
/umthes/de/similar/new.htmlÄhnliche Begriffe
/umthes/de/classification.htmlTextverschlagwortung
https://sns.uba.de/chronikUmweltchronik
https://sns.uba.de/de/apiAPI
https://sns.uba.de/de/kontaktKontakt
https://sns.uba.de/umthesUmweltthesaurus UMTHES Über 50.000 untereinander vernetzte Begriffe
/umthes/de/similar/new.htmlÄhnliche Begriffe Synonyme und Ähnliche Begriffe zu Ihrer Sucheingabe
/umthes/de/classification.htmlTextverschlagwortung Verschlagworten Sie Ihre Dokumente mit Umweltfachsprache
https://sns.uba.de/de/apiAPI-Dokumentation Details zur Integration der Dienste/Schnittstellen
https://sns.uba.de/umthesText duplicate Umweltthesaurus
https://creativecommons.org/li...External CC BY-NC 4.0
https://sns.uba.de/de/apiSchnittstellen zur Integration in Drittsysteme
https://sns.uba.de/umthesUmweltthesaurus UMTHES
A-TITLE Umweltthesaurus UMTHES
https://sns.uba.de/chronikText duplicate Umweltchronik
A-TITLE Umweltchronik
/umthes/de/documents/newAutomatische Textanalyse
A-TITLE Automatische Textanalyse
/umthes/de/similar/newText duplicate Ähnliche Begriffe
A-TITLE Ähnliche Begriffe
https://sns.uba.de/de/impressumImpressum
A-TITLE Impressum
https://sns.uba.de/de/datenschutzDatenschutz
A-TITLE Datenschutz
/de/erklaerung-zur-barrierefre...Erklärung zur Barrierefreiheit
A-TITLE Erklärung zur Barrierefreiheit
/de/leichte-spracheLeichte Sprache
A-TITLE Leichte Sprache
https://www.umweltbundesamt.de/New window External Subdomain IMG-ALT Logo des UBA — Umweltbundesamt
A-TITLE UBA []
https://sns.uba.de/Home
https://sns.uba.de/de/impressumText duplicate Impressum
A-TITLE Impressum
https://umweltbundesamt.de/External © Umweltbundesamt - Alle Rechte vorbehalten

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://sns.uba.de/de"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.17 seconds.
The file size of the HTML document is fine (7 kB).

HTTP Response Header

NameValue
alt-svch3=":443"; ma=2592000
cache-controlno-cache
content-encodinggzip
content-security-policydefault-src https: 'self';
content-typetext/html; charset=utf-8
cross-origin-embedder-policyrequire-corp
cross-origin-opener-policysame-origin
cross-origin-resource-policysame-origin
link</assets/stylesheets/application-b2c57e0b43e4ae2eede8106ce1da3edf.css>; rel=preload; as=style; nopush,</assets/javascripts/jquery-e8ccccf65576748dbf403cf4e74a4c4c.js>; rel=preload; as=script; nopush,</assets/javascripts/bootstrap.bundle.min-26c386afd896f44412f9b6efb65b2ab0.js>; rel=preload; as=script; nopush,</assets/javascripts/application-af6b4a41324c96aabf15635e33dae243.js>; rel=preload; as=script; nopush
permissions-policygeolocation=(), camera=(), microphone=()
referrer-policystrict-origin-when-cross-origin
varyAccept-Encoding
via1.1 Caddy
x-content-type-optionsnosniff
x-dns-prefetch-controloff
x-frame-optionsSAMEORIGIN
x-permitted-cross-domain-policiesnone
x-request-id86f54e74-9a8e-4465-b263-f714ab35550f
x-runtime0.002876
x-xss-protection0
dateWed, 10 Jun 2026 10:49:10 GMT
statuscode200
http_versionHTTP/2

External factors

This page has only a few links from other websites.
This page only has backlinks from 5 referring domains.
This page only has 18 backlinks.
This page only has few backlinks from 5 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-Agent: ClaudeBot
User-Agent: Claude-SearchBot
User-Agent: Amazonbot
User-Agent: Amzn-SearchBot
User-Agent: meta-externalagent
User-Agent: meta-webindexer
User-Agent: GPTBot
Disallow: /

User-Agent: *
Crawl-Delay: 10

Similar sites

Search preview

sns.uba.de
SNS Portal

Most important keywords

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

KeywordResultRecheck
SNS72%Check
Netzwerkservice SNS63%Check
Semantische Netzwerkservice SNS59%Check
Netzwerkservice55%Check
Semantischer55%Check
Semantische51%Check
Dienste47%Check
Anwendungen47%Check
Anwendungen Dienste47%Check
SNS Portal44%Check
Show more keywords and terms

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