Schule.zdf.de - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
48% 
Page structure
63% 
Link structure
98% 
Server
45% 
External factors
100% 
SEO Score
Response time
0.14 s
File size
160.20 kB
Words
70
Media files
26
Number of links
19 internal / 15 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Startseite – ZDF goes Schule
The length of the page title is perfect. (264 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
ZDF goes Schule bietet Bildungsinhalte für den Unterricht. Entdecken Sie Erklärvideos, Unterrichtsmaterial, Arbeitsblätter und Themenpakete. Auf schule.zdf.de wird für ihre Klasse alles einfach erklärt, von der Unterstufe bis zum Oberstufe und dem Abitur.
The meta description is too long: 1570 pixels from max. 1000 pixels. Optimize description
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)
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 character encoding is not specified in the HTTP header.
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
theme-color#33393f
robotsindex,follow
descriptionZDF goes Schule bietet Bildungsinhalte für den Unterricht. Entdecken Sie Erklärvideos, Unterrichtsmaterial, Arbeitsblätter und Themenpakete. Auf schule.zdf.de wird für ihre Klasse alles einfach erklärt, von der Unterstufe bis zum Oberstufe und dem Abitur.
keywordseinfach erklärt, Unterrichtsmaterial kostenlos, ZDF goes Schule, ZDF Bildung, Arbeitsblatt Unterricht, Erklärvideo
langde
og:titleStartseite – ZDF goes Schule
og:imagehttps://schule.zdf.de/assets/images/header-mobile.jpg
og:urlhttps://schule.zdf.de
og:descriptionZDF goes Schule bietet Bildungsinhalte für den Unterricht. Entdecken Sie Erklärvideos, Unterrichtsmaterial, Arbeitsblätter und Themenpakete. Auf schule.zdf.de wird für ihre Klasse alles einfach erklärt, von der Unterstufe bis zum Oberstufe und dem Abitur.
charsetutf-8

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Page quality

Content
(Critically important)
There are only 70 words on this page. Use at least 250 words to provide useful information.
Some words from the page title are not used within the pages content
No paragraphs were detected.
18.6% of the text are stop words.
No placeholders texts or images were found.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 6 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
/assets/logos/zdf_goes_schule-dark.pngZDF Logo
/assets/logos/zdf_goes_schule-dark.pngZDF Logo
/assets/icons/categories/Geschichte.svgGeschichte
/assets/icons/categories/Geografie.svgGeografie
/assets/icons/categories/Biologie.svgBiologie
/assets/icons/categories/Chemie.svgChemie
/assets/icons/categories/Physik.svgPhysik
/assets/icons/categories/Mathe.svgMathematik & Technik
/assets/icons/categories/Politik.svgPolitik
/assets/icons/categories/Wirtschaft.svgWirtschaft
/assets/icons/categories/Ethik.svgEthik & Religion
/assets/icons/categories/Gesellschaft.svgGesellschaft & Soziales
/assets/icons/categories/Sprachen.svgSprachen
/assets/icons/categories/Kunst.svgKunst
/assets/icons/categories/Sport.svgSport
...s/images/other-tx-content/tx-diedoku.jpgundefined
...s/images/other-tx-content/tx-history.jpgundefined
...s/images/other-tx-content/tx-explore.jpgundefined
...images/other-tx-content/lesch-und-co.jpgundefined
/assets/images/other-tx-content/lesch.pngundefined
.../images/other-tx-content/mrwissen2go.jpgundefined
...s/images/other-tx-content/maithink-x.jpgundefined
/assets/images/other-tx-content/nano.jpgundefined
/assets/images/other-tx-content/3sat.pngundefined
/assets/images/other-tx-content/logo.jpgundefined
/assets/images/other-tx-content/purplus.jpgundefined

Page structure

H1 heading
(Critically important)
ZDF goes Schule
Too many H1 headings
The H1 heading is too short (15 characters). It should be at least 20 Characters long.
Headings
(Important)
Some headings occur twice on the page.

Heading structure

Heading levelContent
H1 ZDF goes Schule
H1 ZDF goes Schule Duplicate text
H2 Alle Fächer auf einen Blick
H2 Mehr Wissen streamen im ZDF
H3 Geschichte
H3 Geografie
H3 Biologie
H3 Chemie
H3 Physik
H3 Mathematik & Technik
H3 Politik
H3 Wirtschaft
H3 Ethik & Religion
H3 Gesellschaft & Soziales
H3 Sprachen
H3 Kunst
H3 Sport
Baselink: /
Some anchor texts are used more than once.
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 15 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://schule.zdf.de/IMG-ALT ZDF Logo
https://schule.zdf.de/Text duplicate IMG-ALT ZDF Logo
https://schule.zdf.de/merklisteMeine Merkliste
/partnerschulprogrammZDF-Partnerschulprogramm
/terraxplaincommonsTerra Xplain Commons
/nutzung-in-der-schuleNutzung der Inhalte
/kategorie/geschichteGeschichte
IMG-ALT Geschichte
/kategorie/geografieGeografie
IMG-ALT Geografie
/kategorie/biologieBiologie
IMG-ALT Biologie
/kategorie/chemieChemie
IMG-ALT Chemie
/kategorie/physikPhysik
IMG-ALT Physik
/kategorie/mathematikMathematik & Technik
IMG-ALT Mathematik & Technik
/kategorie/politikPolitik
IMG-ALT Politik
/kategorie/wirtschaftWirtschaft
IMG-ALT Wirtschaft
/kategorie/ethik-religionEthik & Religion
IMG-ALT Ethik & Religion
/kategorie/gesellschaft-und-so...Gesellschaft & Soziales
IMG-ALT Gesellschaft & Soziales
/kategorie/sprachenSprachen
IMG-ALT Sprachen
/kategorie/kunstKunst
IMG-ALT Kunst
/kategorie/sportSport
IMG-ALT Sport
https://www.zdf.de/dokumentati...New window External Subdomain IMG-ALT undefined
https://www.zdf.de/dokumentati...New window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/dokumentati...New window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/dokumentati...New window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/dokus/terra...New window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/wissen/mrwi...New window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/show/mai-th...New window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/nano-732New window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/3satNew window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/kinder/logoNew window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/kinder/purplusNew window External Subdomain Text duplicate IMG-ALT undefined
https://www.zdf.de/mt2025-nutz...New window External Subdomain Nutzungsbedingungen
https://www.zdf.de/mt2025-date...New window External Subdomain Datenschutz
https://www.zdf.de/mein-zdf/da...New window External Subdomain Datenschutzeinstellungen
https://www.zdf.de/mt2025-impr...New window External Subdomain Impressum

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://schule.zdf.de/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time is excellent with 0.14 seconds.
The file size of the HTML document is fine (160 kB).

HTTP Response Header

NameValue
accept-rangesbytes
cache-controlno-cache
content-typetext/html
dateTue, 07 Apr 2026 23:41:03 GMT
etag"69d58297-280d6"
expiresTue, 07 Apr 2026 23:41:02 GMT
last-modifiedTue, 07 Apr 2026 22:17:59 GMT
pragmano-cache
servernginx/1.29.5
content-length164054
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 55 referring domains.
This page has 109,628 backlinks.
This page has backlinks from 53 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

# Block crawling of user-specific pages
Disallow: /merkliste

Similar sites

Search preview

schule.zdf.de
Startseite – ZDF goes Schule
ZDF goes Schule bietet Bildungsinhalte für den Unterricht. Entdecken Sie Erklärvideos, Unterrichtsmaterial, Arbeitsblätter und Themenpakete. Auf schule.zdf.de wird für ihre Klasse alles einfach erklärt, von der Unterstufe bis zum Oberstufe und dem Abitur.

Most important keywords

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

KeywordResultRecheck
ZDF97%Check
Schule95%Check
ZDF goes Schule92%Check
goes84%Check
Startseite ZDF goes Schule75%Check
Startseite ZDF58%Check
Bildungsinhalte51%Check
Unterrichtsmaterial51%Check
Geschichte47%Check
Geografie47%Check
Show more keywords and terms

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