WEBSITE REPORT

cornelsen.de

Latest V2 analysis: 2026-09-08 · 21:29

Overall score92/100

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This report still uses an older scoring model. Re-run the analysis to calculate the current category scores.

SEO78Good7/9 passed · 2 failed

Technical100Excellent10/10 passed · 0 failed

Performance100Excellent4/4 passed · 0 failed

Security82Good9/11 passed · 2 failed

Mobile100Excellent3/3 passed · 0 failed

SEO · 7/9 passed · 2 failed

Failed: Exactly one H1 · Image alt coverage

Technical · 10/10 passed · 0 failed

All rated checks passed.

Performance · 4/4 passed · 0 failed

All rated checks passed.

Security · 9/11 passed · 2 failed

Failed: Permissions Policy · Email privacy

Mobile · 3/3 passed · 0 failed

All rated checks passed.

Category scores are calculated directly from the individual checks: passed divided by all rated checks. Unrated or not-applicable checks are shown separately and are not counted as passed.

GOOGLE SAFE BROWSING

Reputação de segurança

Verifica o site contra ameaças conhecidas do Google Safe Browsing.

A verificação do Safe Browsing está na fila.

APIV5

Correspondências0

Verificado em—

A verificação do Safe Browsing está na fila.

Website preview

Open in new tab

DesktopWide browser viewport

https://cornelsen.de/

MobileNarrow smartphone viewport

Screenshot is being created …

REPORT SUMMARY

What matters most

Critical findings are shown before improvements.

Critical issues0

Improvements3

Strongest areaTechnical 100/100

Needs most attentionSEO 78/100

HTTP status200

Load time91 ms

Page size250 KB

H1 headings2

Images45

Missing alt8

Search Engine Optimization

Title tagCornelsen Verlag | Cornelsen

Meta descriptionDer Cornelsen Verlag bietet Bildungsmedien wie Schulbücher, Arbeitshefte und Materialien für den Unterricht für Lernende und Lehrende.

Canonicalhttps://www.cornelsen.de/

Languagede

Text / HTML ratio4.0 %

Headings

H1: 2Startseite Cornelsen Verlag · Registrieren und Vorteile genießen

H2: 6Unsere Empfehlungen für Sie · Aktuelles · Neue und beliebte Unterrichtshilfen

H3: 17Arbeitsblätter zum Download · Schulplaner 2026/27 · Digital unterrichten

H4: 2Aktuell, sofort einsetzbar und zeitsparend · Organisationshilfe für Lehrkräfte

H5: 0

H6: 0

Keyword cloud

buch 6scriptor 5praxis 5unterricht 5auflage 4cornelsen 4unsere 3wissen 3webcode35 3umgang 3unterrichtsstörungen 3sketchnotes 3materialien 3schule 3day 2

Search Preview

https://cornelsen.de/

Cornelsen Verlag | Cornelsen

Der Cornelsen Verlag bietet Bildungsmedien wie Schulbücher, Arbeitshefte und Materialien für den Unterricht für Lernende und Lehrende.

Title length28 characters

Description length135 characters

Image alt coverage82%

Keyword Consistency

KeywordContagemTitleDescriptionH1

buch6———

scriptor5———

praxis5———

unterricht5—✓—

auflage4———

cornelsen4✓✓✓

unsere3———

wissen3———

SEO e indexabilidade

Os motores de busca conseguem entender e indexar esta página?

Indexável

TitleBom28 caracteres

Meta descriçãoBom135 caracteres

Robots indexingBomIndexing allowed

CanonicalBomhttps://www.cornelsen.de/

Heading hierarchyBomLogical order

Primary H1Rever2 found

IdiomaBomde

Structured dataBomBreadcrumbList, ListItem, WebSite, SearchAction

Meta robotsindex,follow

GooglebotNo separate directive

X-Robots-TagNot set

Hreflang2 entradas

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Technical root causeWhy an issue occurs

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Usability & Technologies

robots.txtFound

XML SitemapFound

FaviconFound

Compressiongzip

Doctypehtml

EncodingDetected

Open GraphDetected

Twitter CardsNot detected

Schema / JSON-LDDetected

Iframes1

Embedded objects0

Server, DNS & TLS

IPv463.178.178.230, 3.67.110.233, 52.29.171.46

IPv6Not detected

Nameserversns-1277.awsdns-31.org, ns-264.awsdns-33.com, ns-771.awsdns-32.net, ns-1757.awsdns-27.co.uk

Mail servers0 cornelsen-de.mail.protection.outlook.com

TLS certificateAvailable

TLS issuerAmazon

TLS expires2027-03-24T23:59:59+00:00

Security & HTTPS

Transport encryption, certificate health, browser security headers and insecure resources.

82/100

✓HTTPS

Website is served over HTTPS.

✓HTTP → HTTPS

HTTP requests are redirected to HTTPS.

✓TLS certificate

Certificate is available and valid.

✓Mixed content

No insecure HTTP resources detected.

✓HSTS

Strict-Transport-Security is enabled.

✓Content Security Policy

A Content-Security-Policy header is present.

✓MIME sniffing

X-Content-Type-Options: nosniff is enabled.

✓Frame protection

Frame embedding is restricted.

✓Referrer Policy

Referrer-Policy is configured.

!Permissions Policy

Restrict unnecessary browser features with Permissions-Policy.

TLS issuerAmazon

TLS expires2027-03-24T23:59:59+00:00

Dias restantes197

Mixed resources0

TECHNICAL & INFRASTRUCTURE

Delivery, DNS & Server

How the website is delivered before content and SEO are considered.

100/100

HTTP status200

Response time91 ms

HTML size250 KB

CompressionGzip compression

IPv463.178.178.230, 3.67.110.233

IPv6Not detected

Nameservers4

Mail servers1

Redirects2

HTTP → HTTPSYes

WWW resolvesYes

TLSAvailable

Content-Typetext/html;charset=UTF-8

Doctypehtml

Character encodingDetected

Languagede

Server headernginx

X-Powered-ByNot disclosed

Cache-ControlNot sent

Primary IP63.178.178.230

Redirect Analysis

HTTP 301http://cornelsen.de/ → https://cornelsen.de:443/

HTTP 301https://cornelsen.de:443/ → https://www.cornelsen.de/

HTTP 200https://www.cornelsen.de/

DOMAIN & URL

Domain & URL Analysis

Local URL-quality checks using data already collected by the core analysis.

Current URLhttps://cornelsen.de/

HTTPSPassed

URL length21 characters

Domain length12 characters

Domain label length9 characters

Hyphen in domainNone

UnderscorePassed

IDN / PunycodeNo

Subdomains0

WWW hostNo

Canonical hostPassed

Redirect target hostPassed

SEO-friendly URLPassed

404 Error Page

The 404-page check is running asynchronously or unavailable.

DOMAIN PROTECTION

Typo Domains

Common typo variants are generated locally and DNS-tested asynchronously. A missing DNS record is not proof that a domain is available to register.

Typo-domain check is running asynchronously or unavailable.

Domain Registration (RDAP)

RDAP data unavailable for this domain. The check runs asynchronously and does not delay the core report.

PageSpeed Insights

Mobile and desktop Lighthouse performance, measured asynchronously.

Deferred during crawler run

Links & Crawlability

Análise de links

Up to 12 links are checked asynchronously after the core report.

Links internos244

Domínios externos11

Follow links257

NoFollow links0

Links sem texto0

Broken in sample0 / 0

Rastreabilidade

robots.txtFound

Meta robotsindex,follow

IndexingIndexable

Canonicalhttps://www.cornelsen.de/

Canonical hostMatches

XML sitemapFound

Hreflang entries2

Amostra de links

DestinoTipoRelTexto âncora

https://cornelsen.de/InternalfollowStartseite Cornelsen Verlag

https://cornelsen.de/magazinInternalfollowMagazin

https://cornelsen.de/service/kundenserviceInternalfollowService & Hilfe

https://cornelsen.de/service/internationalInternalfollowInternational

https://cornelsen.de/shop/direktbestellungInternalfollowDirektbestellung

https://cornelsen.de/digitalInternalfollowDigitale Medien

https://cornelsen.de/grundschuleInternalfollowGrundschule

https://cornelsen.de/grundschule/faecher/deutschInternalfollowDeutsch

https://cornelsen.de/grundschule/faecher/englischInternalfollowEnglisch

https://cornelsen.de/grundschule/faecher/ethikInternalfollowEthik

https://cornelsen.de/grundschule/faecher/franzoesischInternalfollowFranzösisch

https://cornelsen.de/grundschule/faecher/mathematikInternalfollowMathematik

https://cornelsen.de/grundschule/faecher/musikInternalfollowMusik

https://cornelsen.de/grundschule/faecher/katholische-religionInternalfollowKatholische Religion

https://cornelsen.de/grundschule/faecher/sachunterrichtInternalfollowSachunterricht

https://cornelsen.de/grundschule/faecherInternalfollowAlle Fächer

https://cornelsen.de/reihen/einstern-mathematik-310001920000InternalfollowEinstern

https://cornelsen.de/reihen/einsterns-schwester-360002330000InternalfollowEinsterns Schwester

https://cornelsen.de/reihen/jo-jo-mathematik-310000510000InternalfollowJo-Jo Mathematik

https://cornelsen.de/reihen/jo-jo-fibel-360000360000InternalfollowJo-Jo Fibel

SEO

✓Title presentAprovado

✓Title lengthAprovado

✓Meta descriptionAprovado

×Exactly one H1Requer atenção

✓Heading hierarchyAprovado

✓CanonicalAprovado

×Image alt coverageRequer atenção

✓Structured dataAprovado

✓Open Graph metadataAprovado

Technical

✓HTTP status 2xxAprovado

✓HTML languageAprovado

✓Character encodingAprovado

✓HTML doctypeAprovado

✓Robots allows indexingAprovado

✓robots.txtAprovado

✓XML sitemapAprovado

✓FaviconAprovado

✓Internal links presentAprovado

✓WWW resolvesAprovado

Performance

✓Response under 1sAprovado

✓Response under 2.5sAprovado

✓HTML under 500 KBAprovado

✓Compression enabledAprovado

Security

✓HTTPSAprovado

✓HTTP redirects to HTTPSAprovado

✓Valid TLS certificateAprovado

✓No mixed contentAprovado

✓HSTSAprovado

✓Content Security PolicyAprovado

✓MIME sniffing protectionAprovado

✓Frame protectionAprovado

✓Referrer PolicyAprovado

×Permissions PolicyRequer atenção

×Email privacyRequer atenção

Mobile

✓Viewport meta tagAprovado

✓Responsive viewportAprovado

✓No embedded objectsAprovado

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