Lzh.de - SEO Checker

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Overview of the SEO Check
Meta information
75% 
Page quality
94% 
Page structure
95% 
Link structure
70% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.09 s
File size
70.50 kB
Words
529
Media files
7
Number of links
87 internal / 6 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Laser Zentrum Hannover e.V. | Laser Zentrum Hannover
There are word repetitions in the page title.
The length of the page title is perfect. (502 pixels out of 580 max pixel length)
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.lzh.de/node/1
The specified canonical link points to a different page.
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)
The specified alternate links have no errors.
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
msapplication-TileColor#ffffff
msapplication-TileImage/themes/barebones/images/ms-icon-144x144.png
theme-color#ffffff
GeneratorDrupal 10 (https://www.drupal.org)
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
langde
charsetutf-8

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Page quality

Content
(Critically important)
These Typos were found:
  • darüberhinaus => darüber hinaus
This page contains 529 words. That's ok.
34.4% 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.
11 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 13.79 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1.0" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 11 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
...air-optik-1.JPG?h=790be497&itok=APlDeFdHMehrere unterschiedliche große und geformte Optiken in einer Beschichtungskalotte.
...-UTOPI3-rot.JPG?h=790be497&itok=HM7bD3jUDas LZH entwickelt im Projekt UTOPI3 eine neue Femtosekundenquelle für die Drei-Photonenmikroskopie. (Foto: LZH)
...tiplexer-13.JPG?h=0d27ee61&itok=NckVfejjMetallische Spule mit türkis leuchtender Glasfaser.
...022/09/23/Niedersachsen-ADDITIV_LOGO.pngLogo Niedersachsen Additiv
...IZ_positive.png?h=d25f8cc2&itok=arGY4P3OLogo enterprise-europe-network-niedersachsen
...ale_Orte_RZ.jpg?h=34d3a5d0&itok=b5mNQnAWLogo Digitaler Ort Niedersachsen
...es/thumbnail/public/2021-06/LinkedIn.pngLinkedIn

Page structure

H1 heading
(Critically important)
The H1 heading is empty
Headings
(Important)
Some headings do not have any content.

Heading structure

Heading levelContent
H1 Empty heading
H1 40 Jahre Laser Zentrum Hannover e.V.
H2 Short-Menu
H2 Hauptnavigation
H2 Aktuelles
H2 LZH auf der W3+fair in Jena
H2 Tiefer ins Gewebe: Neues Lasersystem für Drei-Photonen-Mikroskopie
H2 Neuer Faserlaser für präzisere Windmessung
H2 Innovationsfelder
H2 Licht für Innovation
H2 Impulse für die Wirtschaft
H2 So erreichen Sie uns
H2 Kontakt
H2 Newsletter
H2 Folgen Sie uns
H2 Fußzeile
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
9 links don't have an anchor text.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are 6 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.lzh.de/Anchor Direkt zum Inhalt
https://www.lzh.de/No Text
/innovationsfelderInnovationsfelder
https://www.lzh.de/unser-angebotAngebot
https://www.lzh.de/publikationenPublikationen
https://www.lzh.de/pressePresse
https://www.lzh.de/karriereKarriere
https://www.lzh.de/ueber-unsÜber uns
/ueber-uns/institutsprofilInstitutsprofil
/ueber-uns/organisationsstrukturOrganisationsstruktur
https://www.lzh.de/historieHistorie
/ueber-uns/auftragsvergabenAuftragsvergaben
/kontakt-und-anfahrtKontakt und Anfahrt
/veroeffentlichungsrelevante-p...Veröffentlichungsrelevante Projekte
/sicherung-guter-wissenschaftl...Sicherung guter wissenschaftlicher Praxis
/innovationsfelderText duplicate Innovationsfelder
/innovationsfelder/smarte-optikSmarte Optik
/innovationsfelder/smarte-laserSmarte Laser
/innovationsfelder/smarte-quan...Smarte Quantentechnologien
/innovationsfelder/smarte-welt...Smarte Weltraumtechnik
/innovationsfelder/smarte-lebe...Smarte Lebenswissenschaften
/innovationsfelder/smarte-prod...Smarte Produktion
/innovationsfelder/smarte-agra...Smarte Agrartechnik
/innovationsfelder/smart-additivSmart Additiv
https://www.lzh.de/unser-angebotUnser Angebot
/de/angebot/auftragsforschung-...Auftragsforschung und Entwicklung
/unser-angebot/projektfoerderungProjektförderung
/de/angebot/prototypen-kleinse...Prototypen und Kleinserien
/angebot/anlagen-geraetebauSonderanlagenbau
/unser-angebot/beratungBeratung
/unser-angebot/direktauftraegeDirektaufträge
/de/angebot/technologietransferTechnologietransfer
/de/angebot/individuellIhre Anfrage
/veranstaltungenVeranstaltungen
https://www.lzh.de/publikationenText duplicate Publikationen
/publikationen/bibliosucheWissenschaftliche Veröffentlichungen
/dissertationen/2026Dissertationen
https://www.lzh.de/presseText duplicate Presse
https://www.lzh.de/newsletterLZH Newsletter
https://www.lzh.de/galerieBildergalerie
https://www.lzh.de/videosVideos
https://www.lzh.de/de/jahrbuchJahrbuch
A-TITLE Jahrbuch des LZH
https://www.lzh.de/karriereText duplicate Karriere
/stellenangeboteStellenangebote
/karriere/angebote-fuer-studie...Für Studierende
/karriere/angebote-fuer-schuel...Für Schüler:innen
/karriere/angebote-fuer-fachkr...Weiterbildungsangebote
https://www.lzh.de/DE
https://www.lzh.de/enEN
/pressemitteilung/2026/40-jahr...Mehr erfahren
/unser-image-videoEinblicke Unser neuer Image-Film
/film-zum-40-jaehrigen-jubilaeumEinblicke Film zum Jubiläum
/ueber-uns/institutsprofilÜBER UNS Das LZH im Profil
/unser-image-videoText duplicate Einblicke Unser neuer Image-Film
/film-zum-40-jaehrigen-jubilaeumText duplicate Einblicke Film zum Jubiläum
/ueber-uns/institutsprofilText duplicate ÜBER UNS Das LZH im Profil
/pressemitteilung/2026/lzh-auf...IMG-ALT Mehrere unterschiedliche große und geformte Optiken in einer Beschichtungskalotte.
/pressemitteilung/2026/lzh-auf...LZH auf der W3+fair in Jena
/pressemitteilung/2026/lzh-auf...Am 23. und 24. September stellt das Laser Zentrum Hannover e.V. (LZH) erstmals auf der W3+fair in Jena aus. Das LZH zeigt aktuelle Arbeiten zu optischen Komp...
/news/2026/tiefer-ins-gewebe-n...IMG-ALT Das LZH entwickelt im Projekt UTOPI3 eine neue Femtosekundenquelle für die Drei-Photonenmikroskopie. (Foto: LZH)
/news/2026/tiefer-ins-gewebe-n...Tiefer ins Gewebe: Neues Lasersystem für Drei-Photonen-Mikroskopie
/news/2026/tiefer-ins-gewebe-n...An einem neuen, kostengünstigen Verfahren zur Drei-Photonen-Mikroskopie arbeitet das LZH zusammen mit Partnern im neuen Projekt UTOPI3. Sie entwickeln dazu e...
/news/2026/neuer-faserlaser-fu...IMG-ALT Metallische Spule mit türkis leuchtender Glasfaser.
/news/2026/neuer-faserlaser-fu...Neuer Faserlaser für präzisere Windmessung
/news/2026/neuer-faserlaser-fu...Gemeinsam mit dem Unternehmen Thies Clima entwickelt das Laser Zentrum Hannover e.V. (LZH) ein neues Lasersystem für die Windmessung per LiDAR. Ziel ist ein ...
https://www.lzh.de/presseAlle Pressemitteilungen
https://www.lzh.de/presseAlle News
/stellenangeboteAlle Stellenangebote
/innovationsfelder/smarte-optikNo Text
/innovationsfelder/smarte-laserNo Text
/innovationsfelder/smarte-quan...No Text
/innovationsfelder/smarte-welt...No Text
/innovationsfelderNo Text
/innovationsfelder/smarte-lebe...No Text
/innovationsfelder/smarte-agra...No Text
/innovationsfelder/smarte-prod...No Text
/innovationsfelder/smart-additivNo Text
http://www.niedersachsen-addit...New window External Subdomain Niedersachsen ADDITIV
https://lzh.de/unser-angebotÜberblick über unser Portfolio
https://niedersachsen-additiv.de/New window External IMG-ALT Logo Niedersachsen Additiv
https://niedersachsen-additiv.de/External Text duplicate Niedersachsen ADDITIV
/enterprise-europe-network-nie...New window IMG-ALT Logo enterprise-europe-network-niedersachsen
/enterprise-europe-network-nie...Enterprise Europe Network Niedersachsen
https://digitalagentur-nieders...New window External IMG-ALT Logo Digitaler Ort Niedersachsen
https://digitalagentur-nieders...New window External Digitaler Ort Niedersachsen
/unser-angebot/beratungberaten
https://www.lzh.de/newsletterLZH-Newsletter
https://www.linkedin.com/compa...New window External Subdomain IMG-ALT LinkedIn
/datenschutzhinweiseDatenschutzhinweise
https://www.lzh.de/rechtlichesRechtliches
https://www.lzh.de/impressumImpressum
/kontakt-und-anfahrtKontakt & Anfahrt
https://www.lzh.de/Cookie-Einstellungen
A-TITLE Klicken Sie hier, um Ihre Cookie-Einstellungen anzupassen.

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.lzh.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 0.09 seconds.
The file size of the HTML document is fine (71 kB).

HTTP Response Header

NameValue
servernginx
dateTue, 20 Oct 2026 11:58:17 GMT
content-typetext/html; charset=UTF-8
content-length15073
cache-controlmust-revalidate, no-cache, private
x-drupal-dynamic-cacheUNCACHEABLE (poor cacheability)
content-languagede
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
expiresSun, 19 Nov 1978 05:00:00 GMT
x-drupal-cacheHIT
varyAccept-Encoding
content-encodinggzip
x-cache-hostc209-varnish-lavish-imbalance
x-cache-backendc209_web_unsaturated_stealer
x-cache-cacheableNO (no-cache)
x-varnish39205086
age0
x-cache-resultMISS
accept-rangesbytes
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 137 referring domains.
This page has 1,905 backlinks.
This page has backlinks from 113 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed

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Most important keywords

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

KeywordResultRecheck
LZH58%Check
Laser55%Check
Hannover55%Check
Zentrum55%Check
Laser Zentrum55%Check
Zentrum Hannover55%Check
Laser Zentrum Hannover55%Check
Laser Zentrum Hannover e.V46%Check
fair45%Check
W3 fair Jena44%Check
Show more keywords and terms

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