- SEO Checker

Overview of the SEO Check
Meta information
Page quality
Page structure
Link structure
External factors
SEO Score
Response time
0.19 s
File size
52.70 kB
Media files
Number of links
45 internal / 33 external

Task list of SEO Improvements

Meta specifications

(Critically important)
Homepage – EducETH - ETH-Kompetenzzentrum für Lehren und Lernen | ETH Zürich
The page title should be shorter than 580 pixels. It is 771 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
(Critically important)
There are no problems in accessing the website.
Canonical URL
No canonical link is specified.
(Somewhat important)
Language detected in text: de
Language defined in HTML: de
Server location: Switzerland
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.
(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.
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
(Nice to have)
The favicon is linked correctly.

Meta tags

viewportwidth=device-width, initial-scale=1
apple-mobile-web-app-titleHomepage – EducETH - ETH-Kompetenzzentrum für Lehren und Lernen | ETH Zürich

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Page quality

(Critically important)
This page contains 581 words. That's ok.
32.2% 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 11.25 words is good.
(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.
This page only loads 3 JavaScript files. That's good!
Bold and strong tags
(Somewhat important)
Empty bold or strong tags were found on this page.
The following tag is repeated too often: weiterbildung
Image SEO
(Somewhat important)
1 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.
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Page structure

H1 heading
(Critically important)
Too many H1 headings
The H1 heading consists of only one word. There should be more information given.
The H1 heading is too short (15 characters). It should be at least 20 Characters long.
Some headings occur twice on the page.

Heading structure

Heading levelContent
H1 Hauptnavigation
H1 Navigationsbereich
H1 MINT Lernzentrum
H1 Unterrichtsmaterialien
H1 Weiterbildung
H1 EducETH: Forschung für die Praxis.
H1 Hauptinhalt
H1 Jetzt aktuell
H1 Buch-Neuerscheinung: "Professionelles Handlungswissen für Lehrerinnen und Lehrer"
H1 MINT-Lernzentrum
H1 Weiterbildungsangebot
H1 Literatur
H1 Unterrichtsmaterialien Duplicate text
H1 Forschungs-Kolloquium
H1 Weitere Informationen
H2 EducETH - ETH-Kompetenzzentrum für Lehren und Lernen
H2 Departemente
H2 Sprachauswahl
H2 Science Meets School!
H2 Footer
H3 Services
H3 Suche
H3 Services Duplicate text
H3 Departemente Duplicate text
H3 Ressourcen
Some internal link anchor texts are too long.
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.
There are 1 links with a trivial anchor text.
The number of internal links is ok.
There are too many external links (33) on this page.
LinkAttributesAnchor text
A-TITLE Direkt auf die Startseite springen Navigation
A-TITLE Direkt zur Navigation springen
A-TITLE Direkt zur Suche springen Inhalt
A-TITLE Direkt zum Inhalt springen Footer
A-TITLE Direkt zum Footer springen
A-TITLE Direkt zu Kontakt springen
A-TITLE Inhaltsverzeichnis IMG-ALT Logo der ETH Zürich, zur Startseite
A-TITLE Zur Startseite der ETH Zürich - ETH-Kompetenzzentrum für Lehren und Lernen
A-TITLE Startseite duplicate Startseite
/ueber-uns.htmlÜber uns
/forschung-und-literatur.htmlForschung und Literatur
/schnittstelle-eth-und-schule....Schnittstelle ETH und Schule Studierendenportal
A-TITLE Informationen für ETH-Studierende Subdomain Alumni-Vereinigung
A-TITLE Website der ETH Alumni-Vereinigung Services & Ressourcen
A-TITLE Zur Plattform Services & Ressourcen
/utils/kontaktText duplicate Kontakt
A-TITLE Öffnet eine Kontaktseite
A-TITLE Login mit ETH Userkonto ETH Zürich
A-TITLE Zur Startseite der ETH Zürich
A-TITLE EducETH - ETH-Kompetenzzentrum für Lehren und Lernen
/lernzentren/mint-lernzentrum....MINT Lernzentrum Wir optimieren schulische Lernangebote für die Fächer Mathematik, Informatik, Naturwissenschaften und Technik.
IMG-ALT MINT Lernzentrum
/unterrichtsmaterialien.htmlUnterrichtsmaterialien Wie entsteht ein Regenbogen? Eine Unterrichtseinheit zu diesem Thema - und zu mehr als 500 anderen Themen - finden Sie bei den Unterri...
IMG-ALT Unterrichtsmaterialien Teaser
/weiterbildung.htmlWeiterbildung Wir stellen für jedes Semester ein vielfältiges Weiterbildungsprogramm für Lehrpersonen aus Gymnasien und anderen Bildungsinstitutionen zusammen.
IMG-ALT Weiterbildung Teaser
/ueber-uns.htmlEducETH: Forschung für die Praxis. Bei EducETH arbeiten Lehr- und Lern-Forscher zusammen mit erfahrenen Lehrpersonen. Das macht unsere Stärke aus.
IMG-ALT EducETH Portrait
/_jcr_content/par/twocolumn_0/...IMG-ALT Jetzt aktuell Teaser Mehr zu diesem Buch (Kohlhammer-Verlag) window External Link zum Interview (PDF, 297 KB) window External Zur Broschüre (PDF, 10.5 MB) window External Text duplicate Zur Broschüre (PDF, 10.5 MB)
/unterrichtsmaterialien/mathem...Komplexe Zahlen Subdomain Link zu den Brückenkursen
https://experimente.phys.ethz....External Subdomain Link zu den Materialien Link zu den Videoaufzeichnungen
/unterrichtsmaterialien/mathem...Stochastische Modellierung im Gymnasialunterricht Weitere Informationen, Leseproben und Bestellen!
/_jcr_content/par/twocolumn_0/...IMG-ALT MINT
/lernzentren/mint-lernzentrum....Zur MINT-Homepage
/_jcr_content/par/twocolumn/pa...Text duplicate IMG-ALT Weiterbildung
/weiterbildung.htmlZum Weiterbildungsangebot...
/_jcr_content/par/twocolumn/pa...IMG-ALT Literatur Teaser
/forschung-und-literatur/liter...Literatur zum Thema
/_jcr_content/par/twocolumn/pa...IMG-ALT Unterrichtsmaterialien Teaser
/unterrichtsmaterialien.htmlZu den Materialien...
/_jcr_content/par/twocolumn/pa...IMG-ALT MINT Kolloquium Teaser
/forschung-und-literatur/kollo...Kolloquium Lehr- und Lern-Forschung und Fachdidaktik
/ueber-uns.htmlTrivial anchor text
/Greutmann.vcard.vcf?persid=13...V-Card (vcf, 1kb)
A-TITLE V-Card Text duplicate Studierendenportal
A-TITLE Informationen für ETH-Studierende Subdomain Text duplicate Alumni-Vereinigung
A-TITLE Website der ETH Alumni-Vereinigung Text duplicate Services & Ressourcen
A-TITLE Zur Plattform Services & Ressourcen
/utils/kontaktText duplicate Kontakt
A-TITLE Öffnet eine Kontaktseite
/login/de.html?resource=/conte...Text duplicate Login
A-TITLE Login mit ETH Userkonto Subdomain D-ARCH Architektur
A-TITLE D-ARCH Subdomain D-BAUG Bau, Umwelt und Geomatik
A-TITLE D-BAUG Subdomain D-BIOL Biologie
A-TITLE D-BIOL Subdomain D-BSSE Biosysteme
A-TITLE D-BSSE Subdomain D-CHAB Chemie und Angewandte Biowissenschaften
A-TITLE D-CHAB Subdomain D-ERDW Erdwissenschaften
A-TITLE D-ERDW Subdomain D-GESS Geistes-, Sozial- und Staatswissenschaften
A-TITLE D-GESS Subdomain D-HEST Gesundheitswissenschaften und Technologie
A-TITLE D-HEST Subdomain D-INFK Informatik
A-TITLE D-INFK Subdomain D-ITET Informationstechnologie und Elektrotechnik
A-TITLE D-ITET Subdomain D-MATH Mathematik
A-TITLE D-MATH Subdomain D-MATL Materialwissenschaft
A-TITLE D-MATL Subdomain D-MAVT Maschinenbau und Verfahrenstechnik
A-TITLE D-MAVT Subdomain D-MTEC Management, Technologie und Ökonomie
A-TITLE D-MTEC Subdomain D-PHYS Physik
A-TITLE D-PHYS Subdomain D-USYS Umweltsystemwissenschaften
/footer/inhaltsverzeichnis.htmlText duplicate Inhaltsverzeichnis
A-TITLE Inhaltsverzeichnis
A-TITLE Impressum
A-TITLE Disclaimer
A-TITLE Copyright
A-TITLE Datenschutz Eidgenössische Technische Hochschule Zürich

Server configuration

HTTP redirects
(Critically important)
This page redirects to ""
HTTP header
The HTML page should be transferred using GZip compression.
The X-powered header is sent within the response header. (unnecessary)
(Somewhat important)
The page response time is excellent with 0.19 seconds.
This page only loads 2 CSS files. That's ok.
This page only loads 3 JavaScript files. That's good!
The file size of the HTML document is fine (53 kB).

HTTP Response Header

dateSat, 26 Dec 2020 09:52:21 GMT
x-powered-byETH Informatikdiensten

External factors

(Critically important)
This website is not classified "for adult only".
This website is not listed on the Shallalist.
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 475 referring domains.
This page has 7,022 backlinks.
This page has backlinks from 410 different ip addresses.
Facebook popularity
(Somewhat important)
This page is not very popular on facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.


No valid Robots.txt file was found.

Facebook popularity

Shares / Likes / Comments

Only the data for the given URL is shown. We cannot determine the social actions for a linked fan page.

Most important keywords

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

ETH Zürich63%Check
Lehr Lern55%Check
Lehren und Lernen55%Check
Alumni ETH52%Check
Homepage EducETH49%Check

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