Dunnlab.de - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
50% 
Page structure
75% 
Link structure
52% 
Server
87% 
External factors
87% 
SEO Score
Response time
2.52 s
File size
169.20 kB
Words
477
Media files
15
Number of links
81 internal / 3 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Startseite - Dunn Labortechnik GmbH
The length of the page title is perfect. (335 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Seit über 40 Jahren Ihr zuverlässiger Partner für Life Science Produkte. Wir bieten Ihnen das komplette Sortiment für Ihr Labor aus einer Hand.
The length of the meta description is perfect. (879 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.dunnlab.de/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: de
Language defined in HTML: de-de
Server location: Germany
The following language is defined by HTML: de-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
viewportwidth=device-width, initial-scale=1
descriptionSeit über 40 Jahren Ihr zuverlässiger Partner für Life Science Produkte. Wir bieten Ihnen das komplette Sortiment für Ihr Labor aus einer Hand.
robotsindex, follow, max-snippet:-1, max-video-preview:-1, max-image-preview:large
generatorElementor 3.30.2; features: additional_custom_breakpoints; settings: css_print_method-external, google_font-enabled, font_display-swap
msapplication-TileImagehttps://www.dunnlab.de/wp-content/uploads/Offizielle_Dunn-Logo_2400-dpi.jpg
article:published_time2023-09-25T10:03:12+02:00
article:modified_time2025-07-28T08:37:06+02:00
langde-de
twitter:cardsummary_large_image
twitter:titleStartseite - Dunn Labortechnik GmbH
twitter:descriptionSeit über 40 Jahren Ihr zuverlässiger Partner für Life Science Produkte. Wir bieten Ihnen das komplette Sortiment für Ihr Labor aus einer Hand.
twitter:label1Verfasst von
twitter:data1webtonia
twitter:label2Lesedauer
twitter:data21 Minute
og:localede_DE
og:typewebsite
og:titleStartseite - Dunn Labortechnik GmbH
og:descriptionSeit über 40 Jahren Ihr zuverlässiger Partner für Life Science Produkte. Wir bieten Ihnen das komplette Sortiment für Ihr Labor aus einer Hand.
og:urlhttps://www.dunnlab.de/
og:site_nameDunn Labortechnik GmbH
og:updated_time2025-07-28T08:37:06+02:00
charsetUTF-8

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
There are only 477 words on this page. Good pages should have about 800 words of useful content.
36.5% 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 17.71 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" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The amount of tags is very high (13). We recommend using a maximum of 10 tags for this page.
Some tags are too long. With 87 characters this one is longer than 70 characters:
"gentegra® dna und gentegra® rna – der einfache und effektive schutz für nukleinsäuren –"
Image SEO
(Somewhat important)
10 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
...oads/Offizielle_Dunn-Logo_2400-dpi-1.jpgNo alt attribute provided
...ent/uploads/DunnSchriftzug-1920-frei.pngNo alt attribute provided
...epress-multilingual-cms/res/flags/en.svgEnglisch
...epress-multilingual-cms/res/flags/de.svgDeutsch
...izielle_Dunn-Logo_2400-dpi-1014x1024.jpgNo alt attribute provided
...epress-multilingual-cms/res/flags/en.svgEnglisch
...epress-multilingual-cms/res/flags/de.svgDeutsch
/wp-content/uploads/Sheldon_GERAeTE-1.jpgNo alt attribute provided
...ontent/uploads/Chemglass_VERBRAUCH-1.jpgNo alt attribute provided
...ontent/uploads/Blood_Plasma_IMMUNO_1.pngNo alt attribute provided
...loads/gentegra-products-RNA300-2880w.jpgNo alt attribute provided
/wp-content/uploads/ARI-neu-1024x409.jpgNo alt attribute provided
...ads/Bild-Geraete_Bearbeitet-1024x409.pngNo alt attribute provided
/wp-content/uploads/GenTegra_DNA_RNA.pngNo alt attribute provided
...borlabs-cookie/assets/images/cb-maps.pngGoogle Maps

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
Some headings occur twice on the page.
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H2 Willkommen bei Dunn Labortechnik!
H2 Seit über 40 Jahren Ihr zuverlässiger Partner für Life Science Produkte.
H2 Produkte
H2 Unsere Produkte
H2 Hersteller
H2 Unsere Hersteller
H2 Art Robbins Instruments
H2 Flexcell Int.
H2 Promotion
H2 Sonderaktion – bis zu 20 % Nachlass auf Geräte von N-Biotek
H2 Promotion Duplicate text
H2 Sonderaktion – bis zu 10 % Nachlass auf 6-Well BioFlex™ Platten (untreated und Collagen I) von Flexcell Int.
H2 News
H2 Produkt der Woche
H2 Kontakt
H2 So Kontaktieren Sie uns
H2 Kontaktdaten:
H3 Laborgeräte
H3 Verbrauchsmaterialien
H3 Immunoreagenzien
H3 Molekularbiologie
H4 Menü
H4 Rechtliches
H4 Suche
Some anchor texts are used more than once.
4 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 3 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.dunnlab.de/Anchor Zum Inhalt springen
https://www.dunnlab.de/Subdomain No Text
https://www.dunnlab.de/Subdomain Startseite
/ueber-uns-2/neu-im-sortiment/Subdomain Neu im Sortiment
/ueber-uns-2/lagerware/Subdomain Lagerware
/newsletter/Subdomain Newsletter
/hersteller/Subdomain Hersteller
/immunoreagenzien/Subdomain Immunoreagenzien
/ausstellungen/Subdomain Ausstellungen
https://www.dunnlab.de/ueber-uns/Subdomain Über uns
https://www.dunnlab.de/kontakt/Subdomain Kontakt
https://www.dunnlab.de/Subdomain Text duplicate Startseite
/ueber-uns-2/neu-im-sortiment/Subdomain Text duplicate Neu im Sortiment
/ueber-uns-2/lagerware/Subdomain Text duplicate Lagerware
/newsletter/Subdomain Text duplicate Newsletter
/hersteller/Subdomain Text duplicate Hersteller
/immunoreagenzien/Subdomain Text duplicate Immunoreagenzien
/ausstellungen/Subdomain Text duplicate Ausstellungen
https://www.dunnlab.de/ueber-uns/Subdomain Text duplicate Über uns
https://www.dunnlab.de/kontakt/Subdomain Text duplicate Kontakt
https://www.dunnlab.de/en/Subdomain IMG-ALT Englisch
https://www.dunnlab.de/Subdomain IMG-ALT Deutsch
https://www.dunnlab.de/kontakt/New window Phone-alt
https://de.linkedin.com/compan...New window External Subdomain Linkedin
https://www.dunnlab.de/Subdomain Text duplicate Startseite
/ueber-uns-2/neu-im-sortiment/Subdomain Text duplicate Neu im Sortiment
/ueber-uns-2/lagerware/Subdomain Text duplicate Lagerware
/newsletter/Subdomain Text duplicate Newsletter
/hersteller/Subdomain Text duplicate Hersteller
/immunoreagenzien/Subdomain Text duplicate Immunoreagenzien
/ausstellungen/Subdomain Text duplicate Ausstellungen
https://www.dunnlab.de/ueber-uns/Subdomain Text duplicate Über uns
https://www.dunnlab.de/kontakt/Subdomain Text duplicate Kontakt
https://www.dunnlab.de/Subdomain Text duplicate Startseite
/ueber-uns-2/neu-im-sortiment/Subdomain Text duplicate Neu im Sortiment
/ueber-uns-2/lagerware/Subdomain Text duplicate Lagerware
/newsletter/Subdomain Text duplicate Newsletter
/hersteller/Subdomain Text duplicate Hersteller
/immunoreagenzien/Subdomain Text duplicate Immunoreagenzien
/ausstellungen/Subdomain Text duplicate Ausstellungen
https://www.dunnlab.de/ueber-uns/Subdomain Text duplicate Über uns
https://www.dunnlab.de/kontakt/Subdomain Text duplicate Kontakt
https://www.dunnlab.de/en/Subdomain Text duplicate IMG-ALT Englisch
https://www.dunnlab.de/Subdomain Text duplicate IMG-ALT Deutsch
/hersteller/No Text
/hersteller/Laborgeräte
/hersteller/No Text
/hersteller/Verbrauchsmaterialien
/immunoreagenzien/No Text
/immunoreagenzien/Text duplicate Immunoreagenzien
/hersteller/No Text
/hersteller/Molekularbiologie
/produkt/art-robbins-instrumen...mehr Details
/produkt/flexcell-internationa...Text duplicate mehr Details
/hersteller/New window Weitere Hersteller
/wp-content/uploads/N-Biotek-S...New window Subdomain Broschüre Herunterladen
/produkt/n-biotek/New window Zu den Geräten
/produkt/flexcell-internationa...New window Subdomain Anchor Zu den Platten
/produkt/gentegra/New window Subdomain mehr zum produkt
https://policies.google.com/pr...New window Nofollow External Subdomain Mehr erfahren
https://www.dunnlab.de/Subdomain Text duplicate Startseite
/ueber-uns-2/neu-im-sortiment/Subdomain Text duplicate Neu im Sortiment
/ueber-uns-2/lagerware/Subdomain Text duplicate Lagerware
/newsletter/Subdomain Text duplicate Newsletter
/hersteller/Subdomain Text duplicate Hersteller
/immunoreagenzien/Subdomain Text duplicate Immunoreagenzien
/ausstellungen/Subdomain Text duplicate Ausstellungen
https://www.dunnlab.de/ueber-uns/Subdomain Text duplicate Über uns
https://www.dunnlab.de/kontakt/Subdomain Text duplicate Kontakt
https://www.dunnlab.de/Subdomain Text duplicate Startseite
/ueber-uns-2/neu-im-sortiment/Subdomain Text duplicate Neu im Sortiment
/ueber-uns-2/lagerware/Subdomain Text duplicate Lagerware
/newsletter/Subdomain Text duplicate Newsletter
/hersteller/Subdomain Text duplicate Hersteller
/immunoreagenzien/Subdomain Text duplicate Immunoreagenzien
/ausstellungen/Subdomain Text duplicate Ausstellungen
https://www.dunnlab.de/ueber-uns/Subdomain Text duplicate Über uns
https://www.dunnlab.de/kontakt/Subdomain Text duplicate Kontakt
https://www.dunnlab.de/impressum/Subdomain Impressum
/datenschutzerklaerung/Subdomain Datenschutzerklärung
https://www.dunnlab.de/impressum/Subdomain Text duplicate Impressum
/datenschutzerklaerung/Subdomain Text duplicate Datenschutzerklärung
/unsere-partner/unsere Partner
https://www.linkedin.com/compa...New window External Subdomain Text duplicate Linkedin

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.dunnlab.de/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
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 very slow (2.52 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.
The file size of the HTML document is fine (169 kB).

HTTP Response Header

NameValue
link<https://www.dunnlab.de/wp-json/>; rel="https://api.w.org/", <https://www.dunnlab.de/wp-json/wp/v2/pages/5>; rel="alternate"; title="JSON"; type="application/json", <https://www.dunnlab.de/>; rel=shortlink
strict-transport-securitymax-age=0
varyAccept-Encoding
content-encodinggzip
content-length23723
content-typetext/html; charset=UTF-8
dateSat, 02 Aug 2025 14:36:17 GMT
serverApache/2.4.58 (Ubuntu)
statuscode200
http_versionHTTP/2

External factors

This page is very well linked from other websites.
This page has backlinks from 29 referring domains.
This page has 260 backlinks.
This page has backlinks from 24 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

Sitemap: https://www.dunnlab.de/sitemap_index.xml

Similar sites

Search preview

www.dunnlab.de
Startseite - Dunn Labortechnik GmbH
Seit über 40 Jahren Ihr zuverlässiger Partner für Life Science Produkte. Wir bieten Ihnen das komplette Sortiment für Ihr Labor aus einer Hand.

Most important keywords

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

KeywordResultRecheck
Labor70%Check
Dunn68%Check
Dunn Labortechnik61%Check
Produkte59%Check
Art56%Check
Labortechnik55%Check
Partner55%Check
Jahren55%Check
40 Jahren55%Check
Life Science Produkte55%Check
Show more keywords and terms

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