Desy.de - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
71% 
Page structure
100% 
Link structure
67% 
Server
21% 
External factors
100% 
SEO Score
Response time
0.52 s
File size
50.30 kB
Words
320
Media files
16
Number of links
58 internal / 13 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Deutsches Elektronen-Synchrotron DESY ·
The length of the page title is perfect. (384 pixels out of 580 max pixel length)
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: Germany
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
viewportwidth=device-width,initial-scale=1.0
langde
charsetutf-8

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Page quality

Content
(Critically important)
There are only 320 words on this page. Good pages should have about 800 words of useful content.
23.4% 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.
3 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 14.5 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
This page loads 7 JavaScript files. This may affect the load time negatively.
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)
3 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
...1/local_assets/img/logos/desy-circle.svgNo alt attribute provided
...5v1/local_assets/img/icons/menu-bars.svgNo alt attribute provided
...6/e_teaser_image/DESY-generell3_ger.webpSymbolbild für den Forschungsbereich Beschleuniger.Symbolbild für den Forschungsbereich Beschleuniger.
...e_teaser_image/MvL-Beamlines-VP_ger.webpSymbolbild für DESYs Forschung mit Photonen.Symbolbild für DESYs Forschung mit Photonen.
..._teaser_image/teilchenphysik-52_ger.webpSymbolbild für den Forschungsbereich Teilchenphysik.Symbolbild für den Forschungsbereich Teilchenphysik.
...DESY_Sciencec-Communication-Lab_ger.webpSymbolbild für DESYs Forschungsbereich Astroteilchenphysik.Symbolbild für DESYs Forschungsbereich Astroteilchenphysik.
...mage/mvl-halle-desy-marta-mayer_ger.webpSymbolbild für Anlagen & Projekte.Symbolbild für Anlagen & Projekte.
...stitute_CFEL_DESY_Timo-Grabosch_ger.webpSymbolbild für Kooperationen mit DESY.Symbolbild für Kooperationen mit DESY.
...her-an-server-Anne-Gaertner-640_ger.webpSymbolbild für Innovation und Technologietransfer bei DESY.Symbolbild für Innovation und Technologietransfer bei DESY.
...teaser_image/ET_AM_2025-5589_web_ger.jpgFoto von britischer Wissenschaftlerin Samaya NissankeFoto von britischer Wissenschaftlerin Samaya Nissanke
...ser_image/250710_IBMWE_PHT63_web_ger.jpgGruppenfoto des 'Impossible Founders'-Teams bei der Preisverleihung des Wettbewerbs ‚Startup Factories‘.Gruppenfoto des 'Impossible Founders'-Teams bei der Preisverleihung des Wettbewerbs ‚Startup Factories‘.
...h_Leemans_DESY_Daniel_Reinhardt_ger.webpDie Vorsitzende und Mitglieder des DESY-Direktoriums halten ein Modell der neuen Experimentierhalle für PETRA IV.Die Vorsitzende und Mitglieder des DESY-Direktoriums halten ein Modell der neuen Experimentierhalle für PETRA IV.
...campusscience-communication-lab_ger.webpPETRA IV Visualisierung.PETRA IV Visualisierung.
...1/local_assets/img/logos/desy-circle.svgDESY Logo
...25v1/local_assets/img/logos/helmholz.svgNo alt attribute provided
Video URLWidthHeight
...ult/fe0b122cee2a2c739b61c9a196a60722.mp4

Page structure

H1 heading
(Critically important)
Forschungszentrum DESY
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Forschungszentrum DESY
H2 Navigation
H2 DESYs Schwerpunkte
H2 DESY aktuell
H2 PETRA IV: Entdeckungsmaschine für wissenschaftliches Neuland
H3 Beschleuniger
H3 Forschung mit Photonen
H3 Teilchenphysik
H3 Astroteilchenphysik
H3 Anlagen & Projekte
H3 Kooperationen & Institute
H3 Innovation & Technologietransfer
H3 Samaya Nissanke wird neue Leitende Wissenschaftlerin bei DESY...
H3 Hamburg gewinnt Startup-Factory-Wettbewerb des Bundesministeriums für Wirtschaft und Energie
H3 PETRA IV – Beschleunigung für Europa von Hamburg aus
Baselink: https://desy.de
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
1 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 13 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://desy.de/index_ger.htmlNo Text
/desy_aktuell/index_ger.htmlDESY aktuell
A-TITLE DESY aktuell
/desy_aktuell/index_ger.html?y...2025
A-TITLE 2025
/desy_aktuell/index_ger.html?y...2024
A-TITLE 2024
/desy_aktuell/index_ger.html?y...2023
A-TITLE 2023
/desy_aktuell/index_ger.html?y...2022
A-TITLE 2022
/desy_aktuell/index_ger.html?y...2021
A-TITLE 2021
/desy_aktuell/index_ger.html?y...2020
A-TITLE 2020
/desy_forschung/index_ger.htmlDESY Forschung
A-TITLE Die Entschlüsselung der Materie
/desy_forschung/beschleuniger/...Beschleuniger
A-TITLE Beschleuniger
/desy_forschung/forschung_mit_...Forschung mit Photonen
A-TITLE Forschung mit Photonen
/desy_forschung/teilchenphysik...Teilchenphysik
A-TITLE Teilchenphysik
/desy_forschung/astroteilchenp...Astroteilchenphysik
A-TITLE Astroteilchenphysik
/desy_forschung/anlagen__proje...Anlagen & Projekte
A-TITLE Anlagen & Projekte
/desy_forschung/kooperationen_...Kooperationen & Institute
A-TITLE Kooperationen & Institute
/desy_forschung/innovation__te...Innovation & Technologietransfer
A-TITLE Innovation & Technologietransfer
/forschungszentrum_desy/index_...Forschungszentrum DESY
A-TITLE Über DESY
/desy_fuer_unternehmen/index_g...DESY für Unternehmen
A-TITLE DESY für Unternehmen
/schuelerlabor/index_ger.htmlSchülerlabor
A-TITLE DESY & Schule
/kontakt/index_ger.htmlKontakt
A-TITLE DESY kontaktieren
/desy_intern/index_ger.htmlDESY intern
A-TITLE DESY USER
/desy_kalender/index_ger.htmlDESY Kalender
A-TITLE DESY-Kalender
/desy_karriere/index_ger.htmlDESY Karriere
A-TITLE Karriere bei DESY
/desy_in_leichter_sprache/inde...DESY in Leichter Sprache
A-TITLE Leichte Sprache
/desy_in_gebaerdensprache/inde...DESY in Gebärdensprache
A-TITLE Gebärdensprache
/mediennachweis/index_ger.htmlMediennachweis
A-TITLE Mediennachweis
https://desy.de/index_eng.htmlEnglish
A-TITLE English
/microsites/petra-4/content/in...Über DESYs Entdeckungsmaschine PETRA IV
/desy_forschung/beschleuniger/...Text duplicate Beschleuniger
/desy_forschung/forschung_mit_...Text duplicate Forschung mit Photonen
/desy_forschung/teilchenphysik...Text duplicate Teilchenphysik
/desy_forschung/astroteilchenp...Text duplicate Astroteilchenphysik
/desy_forschung/anlagen__proje...Text duplicate Anlagen & Projekte
/desy_forschung/kooperationen_...Text duplicate Kooperationen & Institute
/desy_forschung/innovation__te...Text duplicate Innovation & Technologietransfer
/desy_aktuell/2025/samaya_niss...Samaya Nissanke wird neue Leitende Wissenschaftlerin bei DESY...
/desy_aktuell/2025/startup_fac...Hamburg gewinnt Startup-Factory-Wettbewerb des Bundesministeriums für Wirtschaft und Energie
/desy_aktuell/2025/petra_iv/in...PETRA IV – Beschleunigung für Europa von Hamburg aus
/desy_aktuell/index_ger.htmlMehr DESY-Meldungen
https://petra4.desy.de/New window External Subdomain PETRA IV: Entdeckungsmaschine für wissenschaftliches Neuland
https://desy.de/index_ger.htmlIMG-ALT DESY Logo
https://desy.de/index_ger.htmlDEDeutsch
A-TITLE Deutsch
https://desy.de/index_eng.htmlENEnglish
A-TITLE English
/leichtespracheNew window Subdomain Leichte Sprache
/ueber_desy/gebaerdensprache/i...New window Subdomain Gebärdensprache
/erklaerung_zur_barrierefreihe...New window Subdomain Barrierefreiheit
/mediennachweis/index_ger.htmlText duplicate Mediennachweis
/impressum/index_ger.htmlNew window Subdomain Impressum
/datenschutzerklaerung/index_g...New window Subdomain Datenschutzerklärung
/kontakt/index_ger.htmlText duplicate Kontakt
/infos__services/desy_user/ind...New window Subdomain DESY USER
https://accelerators.desy.de/New window External Subdomain ACCELERATORS
https://photon-science.desy.de/New window External Subdomain PHOTON SCIENCE
https://particle-physics.desy.de/New window External Subdomain PARTICLE PHYSICS
https://astroparticle-physics....New window External Subdomain ASTROPARTICLE PHYSICS
/desy_forschung/index_ger.htmlForschung
/desy_forschung/anlagen__proje...Forschungsanlagen & Projekte
https://petra4.desy.de/index_g...New window External Subdomain PETRA IV
https://www.xfel.eu/index_ger....New window External Subdomain European XFEL
/desy_forschung/kooperationen_...Text duplicate Kooperationen & Institute
https://innovation.desy.de/ind...New window External Subdomain Innovation & Transfer
/desy_aktuell/index_ger.htmlAktuelles
/aktuelles/veranstaltungen/ind...New window Subdomain Veranstaltungen
/schule/schuelerlabore/index_g...New window Subdomain Schule
/karriere/index_ger.htmlNew window Subdomain Karriere
https://v22.desy.de/index_ger....New window External Subdomain Stellenangebote
https://de.linkedin.com/compan...New window External Subdomain No Text
https://www.youtube.com/c/Deut...New window External Subdomain No Text
https://www.instagram.com/foll...New window External Subdomain No Text
https://helmholtz.de/New window External No Text
https://desy.de/Anchor Zum Seitenanfang

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://desy.de/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time of 0.52 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
This page loads 7 CSS files. This may affect the page load time negatively.
This page loads 7 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (50 kB).

HTTP Response Header

NameValue
dateThu, 24 Jul 2025 04:49:37 GMT
content-typetext/html;charset=utf-8
connectionclose
varyAccept-Encoding
x-varnish2258313
age0
accept-rangesbytes
x-content-type-optionsnosniff
referrer-policyno-referrer
strict-transport-securitymax-age=16070400
x-frame-optionsSAMEORIGIN
content-security-policyupgrade-insecure-requests; frame-ancestors 'self';
permissions-policygeolocation=(), camera=(), microphone=()
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 165 referring domains.
This page has 327 backlinks.
This page has backlinks from 134 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

No valid Robots.txt file was found.

Similar sites

Search preview

Most important keywords

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

KeywordResultRecheck
DESY83%Check
Elektronen-Synchrotron DESY66%Check
Deutsches Elektronen-Synchrotron DESY60%Check
Forschung58%Check
Forschungszentrum50%Check
PETRA48%Check
PETRA IV48%Check
Teilchenphysik48%Check
Deutsches46%Check
Elektronen-Synchrotron46%Check
Show more keywords and terms

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