Chemlin.de - SEO Checker

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Overview of the SEO Check
Meta information
96% 
Page quality
42% 
Page structure
100% 
Link structure
86% 
Server
42% 
External factors
100% 
SEO Score
Response time
0.05 s
File size
14.00 kB
Words
207
Media files
11
Number of links
4 internal / 21 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
ChemLin Stoffdaten
The page title is too short. (180 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Datenbank für Stoffe und chemische Verbindungen.
The length of the meta description is perfect. (317 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.chemlin.de/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: de
Language defined in HTTP-Equiv meta tag: 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)
No doctype markup was found.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1.0
authorAndreas Jaeck
publisherAndreas Jaeck
copyrightAndreas Jaeck
robotsindex, follow
Revisit-after7 Days
allow-searchYES
audienceall
ratingChemie, Stoffe, Verbindungen
page-topicChemie, Stoffe, Verbindungen
identifier-urlwww.chemlin.de
titleChemLin Stoffdaten
descriptionDatenbank für Stoffe und chemische Verbindungen.
keywordsStoffe, chemische, Verbindungen, Stoffdaten, Datenbank, online
Content-Typetext/plain; charset=UTF-8
Content-Languagede
charsetutf-8

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Page quality

Content
(Critically important)
There are only 207 words on this page. Use at least 250 words to provide useful information.
These Typos were found:
  • ausser => außer
32.9% of the text are stop words.
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 12.5 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
Multiple viewport tags are given. There should only be one.
No Apple touch icon is specified.
This page loads 4 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, minimum-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
Some tags are too long. With 75 characters this one is longer than 70 characters:
"bitte geben sie den suchbegriff ein (formel, cas, genaue bezeichnung, inci)"
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
/grafik/icons/navi.pngNavigationsmenüNavigations Menu
/grafik/icons/email.pngeMaile-Mail an ChemLin
/grafik/icons/twitter.pngTwitterChemLin bei Twitter
/grafik/icons/facebook.pngFacebookChemLin bei Facebook
/grafik/icons/suchen.pngSuchenSeite durchsuchen
/grafik/icons/minus.pngMenü ausblendenMenü ausblenden
/grafik/icons/minus.pngMenü ausblendenMenü ausblenden
/grafik/icons/minus.pngMenü ausblendenMenü ausblenden
/grafik/icons/minus.pngMenü ausblendenMenü ausblenden
/grafik/icons/minus.pngMenü ausblendenMenü ausblenden
/grafik/icons/minus.pngMenü ausblendenMenü ausblenden

Page structure

H1 heading
(Critically important)
Stoffdatenbank ChemLin
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Stoffdatenbank ChemLin
H2 Chemische Verbindungen und ihre Eigenschaften.
H2 Datenbank-Suche
H2 Suchergebnis:
H2 Hinweise zur Suche
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
There are too few (4) internal links on this page.
Every linktext is unique.
None of the anchor texts is too long.
There are 21 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://twitter.com/ChemieLexikonNew window External IMG-ALT Twitter
https://fb.me/InternetchemieNew window External IMG-ALT Facebook
https://www.chemlin.de/ChemLin
https://www.internetchemie.inf...External Subdomain About
https://www.internetchemie.inf...External Subdomain Kontakt
https://www.internetchemie.inf...External Subdomain Impressum
https://www.internetchemie.inf...External Subdomain Datenschutz
/sitemap.phpSitemap
https://www.internetchemie.inf...External Subdomain Chemie Index
https://www.internetchemie.inf...External Subdomain Chemie-Lexikon
https://www.internetchemie.inf...External Subdomain Chemikalien
https://www.internetchemie.inf...External Subdomain Elemente
https://www.internetchemie.inf...External Subdomain Geräte + Instrumente
https://www.internetchemie.inf...External Subdomain Jobbörse, Stellenangebote
https://www.internetchemie.inf...New window External Subdomain Crowdfunding Chemie
https://www.internetchemie.inf...New window External Subdomain Text veröffentlichen
https://www.chemlin.de/Home
https://www.internetchemie.inf...External Subdomain Chemie A - Z
https://www.internetchemie.inf...External Subdomain Produkte, Geräte für Labor und Industrie
https://www.internetchemie.inf...External Subdomain Chemikalien und chemische Verbindungen
https://www.internetchemie.inf...External Subdomain Stellenbörse für Chemie-Jobs
https://www.internetchemie.inf...External Subdomain Impressum, Kontakt
https://www.internetchemie.inf...External Subdomain Text duplicate Crowdfunding Chemie
/stoffdaten/index.php?Datei=CR...CR-31-B
https://www.internetchemie.inf...External Subdomain Mehr erfahren

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.chemlin.de/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
This page loads 4 JavaScript files. This may affect the load time negatively.
The page response time is excellent with 0.05 seconds.
This page only loads 1 CSS files. That's ok.
The file size of the HTML document is fine (14 kB).

HTTP Response Header

NameValue
transfer-encodingchunked
content-typetext/html; charset=UTF-8
dateSat, 01 Apr 2023 11:54:37 GMT
serverCM4all Webserver
statuscode200
http_versionHTTP/1.1

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This website has excellent links from other websites.
This page has backlinks from 276 referring domains.
This page has 7,195 backlinks.
This page has backlinks from 241 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Allow: /
User-agent: Mediapartners-Google* 
Disallow:

Similar sites

Search preview

www.chemlin.de
ChemLin Stoffdaten
Datenbank für Stoffe und chemische Verbindungen.

Most important keywords

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

KeywordResultRecheck
ChemLin77%Check
ChemLin Stoffdaten66%Check
Suche53%Check
Verbindungen50%Check
chemische50%Check
Stoffdatenbank50%Check
chemische Verbindungen50%Check
Suchbegriff39%Check
Bezeichnung39%Check
gestartet39%Check
Show more keywords and terms

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