WebsiteReviews

WEBSITE REPORT

duden.de

Latest V2 analysis: 2026-09-08 · 20:24

Overall score88/100
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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
Security64Needs work7/11 passed · 4 failed
Mobile100Excellent3/3 passed · 0 failed
SEO · 7/9 passed · 2 failed

Failed: Meta description · Structured data

Technical · 10/10 passed · 0 failed

All rated checks passed.

Performance · 4/4 passed · 0 failed

All rated checks passed.

Security · 7/11 passed · 4 failed

Failed: HSTS · Content Security Policy · Referrer Policy · Permissions Policy

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

Security reputation

Checks the website against known Google Safe Browsing threats.

No known threat
APIV5
Matches0
Checked at2026-09-11 · 09:54

Website preview

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DesktopWide browser viewport
https://duden.de/
Website preview - Desktop
MobileNarrow smartphone viewport
Website preview - Mobile
REPORT SUMMARY

What matters most

Critical findings are shown before improvements.

Critical issues0
Improvements6
Strongest areaTechnical 100/100
Needs most attentionSecurity 64/100
HTTP status200
Load time111 ms
Page size114 KB
H1 headings1
Images26
Missing alt0

Search Engine Optimization

Title tagDuden | Sprache sagt alles.
Meta descriptionDuden ist die Marke der deutschen Sprache ➤ Wörterbücher, Sachbücher, Ratgeber, Lernhilfen und viele digitale Produkte (Software und Apps) ➤ Duden ist mehr als ein Wörterbuch!
Canonicalhttps://www.duden.de
Languagede
Text / HTML ratio3.8 %

Headings

H1: 1Duden | Sprache sagt alles.
H2: 16Neuerscheinungen · Große Wörter für kleine Leute · Das große Buch der deutschen Sprache
H3: 0
H4: 0
H5: 0
H6: 0

Keyword cloud

duden 11shop 8plädoyer 4große 4wörter 4sprache 3ansehen 3besseres 3miteinander 3meyers 3mut 3kleine 3leute 3schulstartbuch 2rabe 2

Search Preview

https://duden.de/
Duden | Sprache sagt alles.
Duden ist die Marke der deutschen Sprache ➤ Wörterbücher, Sachbücher, Ratgeber, Lernhilfen und viele digitale Produkte (Software und Apps) ➤ Duden ist mehr als ein Wörterbuch!
Title length27 characters
Description length175 characters
Image alt coverage100%

Keyword Consistency

KeywordCountTitleDescriptionH1
duden11✓✓✓
shop8———
plädoyer4———
große4———
wörter4—✓—
sprache3✓✓✓
ansehen3———
besseres3———
SEO & Indexability

Can search engines understand and index this page?

Indexable
TitleGood27 characters
Meta descriptionReview175 characters
Robots indexingGoodIndexing allowed
CanonicalGoodhttps://www.duden.de
Heading hierarchyGoodLogical order
Primary H1Good1 found
LanguageGoodde
Structured dataReviewNot detected
Meta robotsindex
GooglebotNo separate directive
X-Robots-TagNot set
Hreflang0 entries
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Usability & Technologies

robots.txtFound
XML SitemapFound
FaviconFound
Compressiongzip
Doctypehtml
EncodingDetected
Open GraphDetected
Twitter CardsDetected
Schema / JSON-LDDetected
Iframes1
Embedded objects0

Server, DNS & TLS

IPv43.74.60.191, 3.76.71.90
IPv6Not detected
Nameserversns-112.awsdns-14.com, ns-1670.awsdns-16.co.uk, ns-1096.awsdns-09.org, ns-1017.awsdns-63.net
Mail servers10 duden-de.mail.protection.outlook.com
TLS certificateAvailable
TLS issuerAmazon
TLS expires2026-11-26T23:59:59+00:00

Security & HTTPS

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

64/100
✓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
Enable HSTS after HTTPS works everywhere.
!Content Security Policy
Add a restrictive Content-Security-Policy header.
✓MIME sniffing
X-Content-Type-Options: nosniff is enabled.
✓Frame protection
Frame embedding is restricted.
!Referrer Policy
Add an appropriate Referrer-Policy header.
!Permissions Policy
Restrict unnecessary browser features with Permissions-Policy.
TLS issuerAmazon
TLS expires2026-11-26T23:59:59+00:00
Days remaining79
Mixed resources0
TECHNICAL & INFRASTRUCTURE

Delivery, DNS & Server

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

100/100
HTTP status200
Response time111 ms
HTML size114 KB
CompressionGzip compression
IPv43.74.60.191, 3.76.71.90
IPv6Not detected
Nameservers4
Mail servers1
Redirects2
HTTP → HTTPSYes
WWW resolvesYes
TLSAvailable
Content-Typetext/html; charset=UTF-8
Doctypehtml
Character encodingDetected
Languagede
Server headerNot disclosed
X-Powered-ByNot disclosed
Cache-Controlmax-age=86400, public
Primary IP3.74.60.191

Redirect Analysis

HTTP 301http://duden.de/ → https://duden.de:443/
HTTP 301https://duden.de:443/ → https://www.duden.de/
HTTP 200https://www.duden.de/
DOMAIN & URL

Domain & URL Analysis

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

Current URLhttps://duden.de/
HTTPSPassed
URL length17 characters
Domain length8 characters
Domain label length5 characters
Hyphen in domainNone
UnderscorePassed
IDN / PunycodeNo
Subdomains0
WWW hostNo
Canonical hostPassed
Redirect target hostPassed
SEO-friendly URLPassed

404 Error Page

Unknown URL status404
Correct 404/410 statusPassed
Custom error pageDetected
Soft 404No
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.

VariantTypeDNSRegistration
uden.demissing characterActiveUnknown
dden.demissing characterActiveUnknown
duen.demissing characterActiveUnknown
dudn.demissing characterActiveUnknown
dude.demissing characterActiveUnknown
udden.detransposed charactersActiveUnknown
dduen.detransposed charactersActiveUnknown
duedn.detransposed charactersNo DNS detectedUnknown
dudne.detransposed charactersActiveUnknown

No DNS does not mean a domain is available for registration.

Domain Registration (RDAP)

Registrar—
Registered—
Domain ageUnavailable
Expires—
Days until expiryUnavailable
Expiry assessmentUnavailable
Last registry update—
Status—

PageSpeed Insights

Mobile and desktop Lighthouse performance, measured asynchronously.

Mobile

PageSpeed transport error

Desktop

91/100
Performance91
Accessibility97
SEO100
Best Practices100
LCP1,674 msGood
CLS0.054Good
TBT90 msGood
FCP725 msGood
Speed Index1,391 msGood

Lighthouse recommendations

Reduce unused JavaScriptEst savings of 466 KiB
Potential saving: 80 ms
Avoid multiple page redirectsEst savings of 230 ms
Potential saving: 230 ms
Links & Crawlability

Link analysis

Up to 12 links are checked asynchronously after the core report.
Internal links75
External domains10
Follow links110
NoFollow links0
Links without text9
Broken in sample0 / 12

Crawlability

robots.txtFound
Meta robotsindex
IndexingIndexable
Canonicalhttps://www.duden.de
Canonical hostMatches
XML sitemapFound
Hreflang entries0

Link sample

DestinationTypeRelAnchor text
https://duden.de/Internalfollow—
https://duden.de/woerterbuchInternalfollowOnline-Wörterbuch
https://duden.de/woerterbuchInternalfollowOnline-Wörterbuch
https://duden.de/sprachwissenInternalfollowSprachwissen
https://duden.de/sprachwissen/rechtschreibregelnInternalfollowRecht­schreib­regeln
https://duden.de/haeufige_fehlerInternalfollowHäufige Fehler
https://www.duden.de/Liste-der-rechtschreiblich-schwierigen-WoerterInternalfollowSchwierige Wörter
https://www.duden.de/sprache-in-zahlenInternalfollowSprache in Zahlen
https://duden.de/sprachwissen/sprachratgeberInternalfollowSprache und Stil
https://duden.de/sprachwissen/sprachratgeber/Wort-und-Unwort-des-JahresInternalfollowWörter des Jahres
https://mentor.duden.de/?itm_source=duden_de&itm_medium=leadgen_int&itm_campaign=topnavi&itm_content=schreibassistent&acq_chnl=do-mainmenu-firstlevelExternalfollowSchreibassistent
https://www.duden.de/unternehmen?itm_source=duden_de&itm_medium=premium_b2b_int&itm_campaign=startseite-do&itm_content=link-navi&acq_chnl=do-mainmenu-firstlevelInternalfollowUnternehmen
https://duden.de/fuer-schulenInternalfollowSchule
https://duden.de/fuer-schulenInternalfollowFür Schulen
https://duden.de/fuer-elternInternalfollowFür Eltern
https://duden.de/serviceInternalfollowAbos und Preise
https://mentor.duden.de/?itm_source=duden_de&itm_medium=premium_int&itm_campaign=topnavi_service&itm_content=duden-mentor-textpruefung&acq_chnl=do-mainmenu-secondlevelExternalfollowDuden-Mentor-Textprüfung
https://www.duden.de/werbefreiheit?targetGroup=pur&acq_chnl=pur-lpInternalfollowWerbe- und Trackingfreiheit
https://duden.de/service/abosInternalfollowDigitale Abonnements
https://duden.de/unsere-produkteInternalfollowBücher und Shop

SEO

✓Title presentPassed
✓Title lengthPassed
×Meta descriptionNeeds attention
✓Exactly one H1Passed
✓Heading hierarchyPassed
✓CanonicalPassed
✓Image alt coveragePassed
×Structured dataNeeds attention
✓Open Graph metadataPassed

Technical

✓HTTP status 2xxPassed
✓HTML languagePassed
✓Character encodingPassed
✓HTML doctypePassed
✓Robots allows indexingPassed
✓robots.txtPassed
✓XML sitemapPassed
✓FaviconPassed
✓Internal links presentPassed
✓WWW resolvesPassed

Performance

✓Response under 1sPassed
✓Response under 2.5sPassed
✓HTML under 500 KBPassed
✓Compression enabledPassed

Security

✓HTTPSPassed
✓HTTP redirects to HTTPSPassed
✓Valid TLS certificatePassed
✓No mixed contentPassed
×HSTSNeeds attention
×Content Security PolicyNeeds attention
✓MIME sniffing protectionPassed
✓Frame protectionPassed
×Referrer PolicyNeeds attention
×Permissions PolicyNeeds attention
✓Email privacyPassed

Mobile

✓Viewport meta tagPassed
✓Responsive viewportPassed
✓No embedded objectsPassed
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