Petra4.desy.de - SEO Checker

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Overview of the SEO Check
Meta information
79% 
Page quality
51% 
Page structure
100% 
Link structure
66% 
Server
59% 
External factors
69% 
SEO Score
Response time
1.01 s
File size
42.10 kB
Words
385
Media files
18
Number of links
56 internal / 8 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
PETRA IV · Spitzenforschung in ganz neuem Licht
The length of the page title is perfect. (452 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: 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)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
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)
Words from the H1 heading are not used in the page content.
There are only 385 words on this page. Good pages should have about 800 words of useful content.
31.7% 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.
6 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 17.73 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 8 tags for this page.
Image SEO
(Somewhat important)
5 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
...logos/PETRA_IV_Schriftzug_RGB_2021_1.svgNo alt attribute provided
...me_petra4/assets/img/icons/menu-bars.svgNo alt attribute provided
.../PETRA_IV_Schriftzug_RGB_2021--white.svgLogo Petra IV
...Teaser-640x360-Gesundheit-Proben_ger.jpgTHE ALT-TAGTHE ALT-TAG
..._image/Teaser-640x360-Ressourcen_ger.jpgTHE ALT-TAGTHE ALT-TAG
...r-640x360-NachhaltigeMaterialien_ger.jpgTHE ALT-TAGTHE ALT-TAG
...-640x360-NeueTechnologien-Server_ger.jpgTHE ALT-TAGTHE ALT-TAG
...easer-640x360-ErdeUmwelt-Eisberg_ger.jpgTHE ALT-TAGTHE ALT-TAG
...turelles_Erbe_640x360teaser-card_ger.jpgKulturelles Erbe: Mit Röntgenlicht übermalte Bilder sichtbar machen.Kulturelles Erbe: Mit Röntgenlicht übermalte Bilder sichtbar machen.
...ldschirmfoto2024-10-01um11.37.18_ger.pngZwei Finger halten ein Stück Würfelzucker in eine Tasse, die mit Kaffee gefüllt ist. Der Zuckerwürfel saugt den Kaffee entgegen der Schwerkraft von unten nach oben.Zwei Finger halten ein Stück Würfelzucker in eine Tasse, die mit Kaffee gefüllt ist. Der Zuckerwürfel saugt den Kaffee entgegen der Schwerkraft von unten nach oben.
...6954/e_teaser_image/2024-06-27-2_ger.jpgTeilnehmende Personen vom FrühstückTeilnehmende Personen vom Frühstück
..._teaser_image/P4_Key_Facts_small_ger.jpgLinse als Beispiel Petra vierLinse als Beispiel Petra vier
...und-Innoation_DESY_Anne_Gaertner_ger.jpgNah-Aufnahme eines Wafers im LaborNah-Aufnahme eines Wafers im Labor
...ntent/e3591/luftbild-teaser-card_ger.jpgLuftaufnahme des DESY-CampusLuftaufnahme des DESY-Campus
...logos/PETRA_IV_Schriftzug_RGB_2021_1.svgNo alt attribute provided
..._petra4/assets/img/logos/desy-circle.svgNo alt attribute provided
/theme_petra4/assets/img/logos/helmholz.svgNo alt attribute provided
Video URLWidthHeight
...ult/9ed66754ea395ffd7fef1f7420139fe6.mp4

Page structure

H1 heading
(Critically important)
Spitzenforschung in ganz neuem Licht
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Spitzenforschung in ganz neuem Licht
H2 Navigation
H2 Forschungsbereiche
H2 Aktuelles
H2 Transfer und Innovation
H2 PETRA IV entsteht auf dem DESY-Campus in Hamburg-Bahrenfeld
H3 Gesundheit
H3 Neue Materialien
H3 Energie
H3 Neue Technologien
H3 Erde und Umwelt
H3 Kulturelles Erbe
H3 Innovative Energiegewinnung
H3 Parlamentarisches Frühstück
H3 Science Briefing PETRA IV
Baselink: https://petra4.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.
2 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 8 external links on this page.

Found links on this page

LinkAttributesAnchor text
/index_ger.htmlSubdomain No Text
/faq/index_ger.htmlSubdomain FAQ
/presse/index_ger.htmlSubdomain Presse
/petra_iv/index_ger.htmlSubdomain PETRA IV
A-TITLE Fortschritt beschleunigen
/petra_iv/beschleuniger/index_...Subdomain Beschleuniger
A-TITLE Beschleuniger
/petra_iv/beamlines/index_ger....Subdomain Beamlines
A-TITLE Beamlines
/petra_iv/nutzer_und_industrie...Subdomain Nutzer und Industrie
A-TITLE Partner für Forschung und Industrie
/petra_iv/partner/index_ger.htmlSubdomain Partner
A-TITLE Partner
/petra_iv/faq/index_ger.htmlSubdomain Text duplicate FAQ
A-TITLE FAQ
/petra_iv/kontakt/index_ger.htmlSubdomain Kontakt
A-TITLE Kontakt
/forschung/index_ger.htmlSubdomain Forschung
A-TITLE Forschung
/forschung/gesundheit/index_ge...Subdomain Gesundheit
A-TITLE Gesundheit
/forschung/neue_materialien/in...Subdomain Neue Materialien
A-TITLE Neue Materialien
/forschung/energie/index_ger.htmlSubdomain Energie
A-TITLE Energie
/forschung/neue_technologien/i...Subdomain Neue Technologien
A-TITLE Neue Technologien
/forschung/erde_und_umwelt/ind...Subdomain Erde und Umwelt
A-TITLE Erde und Umwelt
/forschung/kulturelles_erbe/in...Subdomain Kulturelles Erbe
A-TITLE Kulturelles Erbe
/transfer_und_innovation/index...Subdomain Transfer und Innovation
A-TITLE Transfer und Innovation
/transfer_und_innovation/scien...Subdomain Science Briefing
A-TITLE DESY ist bereit für die Zukunft
/aktuelles/index_ger.htmlSubdomain Aktuelles
A-TITLE Aktuelles
/aktuelles/index_ger.html?year...Subdomain 2024
A-TITLE 2024
/aktuelles/index_ger.html?year...Subdomain 2023
A-TITLE 2023
/aktuelles/index_ger.html?year...Subdomain 2022
A-TITLE 2022
/aktuelles/index_ger.html?year...Subdomain 2021
A-TITLE 2021
/aktuelles/index_ger.html?year...Subdomain 2020
A-TITLE 2020
/standort/index_ger.htmlSubdomain Standort
A-TITLE Standort
/standort/gute_nachbarschaft/i...Subdomain Gute Nachbarschaft
A-TITLE Gute Nachbarschaft
/standort/bauvorhaben/index_ge...Subdomain Bauvorhaben
A-TITLE Bauvorhaben
/index_eng.htmlSubdomain English
A-TITLE English
/petra_iv/index_ger.htmlSubdomain Mehr über PETRA IV
/forschung/gesundheit/index_ge...Subdomain Text duplicate Gesundheit
/forschung/neue_materialien/in...Subdomain Text duplicate Neue Materialien
/forschung/energie/index_ger.htmlSubdomain Text duplicate Energie
/forschung/neue_technologien/i...Subdomain Text duplicate Neue Technologien
/forschung/erde_und_umwelt/ind...Subdomain Text duplicate Erde und Umwelt
/forschung/kulturelles_erbe/in...Subdomain Text duplicate Kulturelles Erbe
/aktuelles/2024/energiegewinnu...Subdomain Innovative Energiegewinnung
/aktuelles/2024/parlamentarisc...Subdomain Parlamentarisches Frühstück
/aktuelles/2024/science_briefi...Subdomain Science Briefing PETRA IV
/aktuelles/index_ger.htmlSubdomain Weitere News
/transfer_und_innovation/index...New window Subdomain Text duplicate Transfer und Innovation
/standort/index_ger.htmlSubdomain PETRA IV entsteht auf dem DESY-Campus in Hamburg-Bahrenfeld
/index_ger.htmlSubdomain No Text
/index_ger.htmlSubdomain DEDeutsch
A-TITLE Deutsch
/index_eng.htmlSubdomain ENEnglish
A-TITLE English
https://www.desy.de/impressum/...New window External Subdomain Impressum
/mediennachweis/index_ger.htmlSubdomain Mediennachweis
https://www.desy.de/datenschut...New window External Subdomain Datenschutz
https://www.desy.de/erklaerung...New window External Subdomain Barrierefreiheit
/petra_iv/index_ger.htmlSubdomain Über PETRA IV
/forschung/index_ger.htmlSubdomain Text duplicate Forschung
/aktuelles/index_ger.htmlSubdomain Text duplicate Aktuelles
/standort/index_ger.htmlSubdomain Text duplicate Standort
/faq/index_ger.htmlSubdomain Text duplicate FAQ
/transfer_und_innovation/index...Subdomain Transfer
/presse/index_ger.htmlSubdomain Text duplicate Presse
/glossar/index_ger.htmlSubdomain Glossar
/petra_iv/kontakt/index_ger.htmlSubdomain Text duplicate Kontakt
https://desy.de/New window External No Text
https://www.desy.de/facebookNew window External Subdomain No Text
https://www.desy.de/twitterNew window External Subdomain No Text
https://de.linkedin.com/compan...New window External Subdomain No Text
https://helmholtz.de/New window External No Text
https://petra4.desy.de/Anchor Zum Seitenanfang

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://petra4.desy.de/"
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is slow (1.01 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
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 (42 kB).

HTTP Response Header

NameValue
dateSun, 27 Oct 2024 22:43:31 GMT
content-typetext/html;charset=utf-8
transfer-encodingchunked
connectionkeep-alive
varyAccept-Encoding
viawaitress
x-powered-byZope (www.zope.dev), Python (www.python.org)
x-content-type-optionsnosniff
referrer-policyno-referrer
strict-transport-securitymax-age=16070400; includeSubDomains
x-frame-optionsSAMEORIGIN
content-security-policyupgrade-insecure-requests; frame-ancestors 'self';
permissions-policygeolocation=(), camera=(), microphone=()
content-encodinggzip
statuscode200
http_versionHTTP/1.1

External factors

This page has only a few links from other websites.
This page only has backlinks from 23 referring domains.
This page only has 31 backlinks.
This page only has few backlinks from 18 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

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
PETRA72%Check
Neue66%Check
Forschung66%Check
PETRA IV65%Check
PETRA IV Spitzenforschung65%Check
Licht64%Check
neuem Licht63%Check
Spitzenforschung62%Check
neuem61%Check
DESY56%Check
Show more keywords and terms

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