Duden
The online reference for German spelling, grammar and word meanings from the Duden editorial team.
Duden at a glance
Duden is an education website and one of the most visited sites in Germany, currently ranked #195 in the country. It was founded in 1880 by Konrad Duden and is headquartered in Berlin, Germany. Today Duden is owned by Cornelsen Verlag (Bibliographisches Institut). Our estimates put its audience at ≈ 60 million visits per month. The business earns money mainly through digital advertising, premium subscriptions, book sales. Its closest rivals include dwds.de, dict.cc, leo.org.
Traffic statistics
Traffic history
| Period | Visits | Change |
|---|---|---|
| Q1 | ≈ 56.4 million / month | +2% |
| Q2 | ≈ 58.2 million / month | +3% |
| Q3 | ≈ 60 million / month | +3% |
| Q4 | ≈ 63.6 million / month | +6% |
Traffic sources
- Organic search44%
- Direct36%
- Referral10%
- Social6%
- Paid4%
Audience & demographics
- Women51%
- Men49%
- Age 18-2434%
- Age 25-3427%
- Age 35-4419%
The audience is concentrated in Germany, skewing urban and mobile, with usage peaks in the evening hours.
Geographic reach
- Germany86%
Home market
- Diaspora and neighbouring markets7%
- Europe3%
- North America2%
- Rest of world2%
SEO profile
- Estimated organic traffic
- ≈ 18 million visits / month
- Branded share of search
- High — brand terms lead the keyword profile
- Indexed pages
- Large — category, listing or article level
- Primary search market
- Germany
Top organic keywords
| Keyword | Position | Volume | Traffic share |
|---|---|---|---|
| duden | 1 | Very high | Dominant |
| exam results | Top 10 | High | — |
| past papers | Top 10 | High | — |
| online courses | Top 10 | High | — |
Backlink profile
- Referring domains
- Tens of thousands
- Link profile
- News coverage, directories, blogs and partner sites
- Authority
- High within the Germany web
Top referral sources
- News and media31%
- Directories and aggregators24%
- Blogs and forums20%
- Partner sites14%
- Other11%
Technology stack
Website technologies
Advertising & analytics technologies
Stack details are inferred from public front-end signals and engineering communications; internal systems may differ.
Mobile app statistics
Available in the local store
Available in the local store
- App share of traffic
- ≈ 66% mobile
- Position in country
- Among the leading education apps in Germany
Company information
- Website
- duden.de
- Sector
- Education
- Owner
- Cornelsen Verlag (Bibliographisches Institut)
- Owner type
- Private company
- Founders
- Konrad Duden
- Founded
- 1880
- Headquarters
- Berlin, Germany
- Employees
- 200+
- Ownership
- Cornelsen Verlag (Bibliographisches Institut) controls the platform. Ownership details are based on public filings and press reporting.
- Revenue
- ≈ $60 million annual revenue (est.)
- Languages
- German
- Top traffic sources
- organic search, direct, referral
Financials
- Revenue
- ≈ $60 million annual revenue (est.)
- Ownership
- Private company
- Reporting
- Figures based on public filings, press reports and market estimates
Business model & revenue
Duden operates an education platform focused on Germany. The online reference for German spelling, grammar and word meanings from the Duden editorial team. Revenue comes mainly from digital advertising, supported by the other lines listed below.
- Digital advertising
- Premium subscriptions
- Book sales
Products & services
Related deals on Amazon
As an Amazon Associate, Global Site Index earns from qualifying purchases.
International presence
- Primary market
- Germany
- Expansion
- Regional and diaspora audiences beyond the home market
Employee statistics
Customer statistics
Website rankings
- Country rank (Germany)
- #195 in this index
- Sector rank
- Leading education site in Germany
- Global rank
- 1800
Main competitors
Website comparisons
| Website | Monthly visits | Rank | Notes |
|---|---|---|---|
| dwds.de | ≈ 36 million / month | #196 class competitor | — |
| dict.cc | ≈ 27 million / month | #197 class competitor | — |
| leo.org | ≈ 18 million / month | #198 class competitor | — |
What is Duden?
Duden (duden.de) is an education platform serving users in Germany. The online reference for German spelling, grammar and word meanings from the Duden editorial team. It ranks #195 among the most visited websites in the country in this index, within the education category.
Who owns Duden?
The site is operated by Cornelsen Verlag (Bibliographisches Institut), founded by Konrad Duden. The company was established in 1880 and is headquartered in Berlin, Germany. It employs around 200+.
Traffic and audience
Traffic estimates place Duden at roughly 60 million visits per month, about 2 million per day. Around 66% mobile of sessions come from mobile devices, and visitors view about 5.2 pages per visit with an average session of 9 min.
How Duden makes money
Revenue comes primarily from digital advertising, alongside premium subscriptions, book sales.
Competitors in Germany
Its closest rivals include dwds.de, dict.cc, leo.org.
Data and accuracy
Company facts are drawn from public sources. Traffic, revenue and audience figures are third-party estimates or sector benchmarks, marked with ≈ where modelled, and are reviewed periodically.
Company history & milestones
- 1880
Duden is founded in Berlin, Germany.
- Growth phase
Expands its education offering and moves to a mobile-first product.
- Today
Ranks #195 among the most visited websites in Germany.
User reviews & ratings
| Source | Score | Reviews | Notes |
|---|---|---|---|
| Google Play | ≈ 4.3 / 5 | — | Ratings from the local store listing |
| App Store | ≈ 4.5 / 5 | — | Ratings from the local store listing |
| Consumer review platforms | Mixed | — | Service and support are common themes |
App store ratings are solid, while consumer review platforms show the usual friction around support and service quality.
Pros & cons
Pros
- Free or low-cost access to study material
- Content aligned with the national curriculum
- Works on low-end devices
- Exam and result services in one place
Cons
- Peak-period slowdowns around exam dates
- Uneven content quality between subjects
- Limited personalised feedback
- Some features locked behind subscriptions
Key statistics
Frequently asked questions
Who owns Duden?
Duden is operated by Cornelsen Verlag (Bibliographisches Institut). Private company structure, based on public filings and press reporting.
Where is Duden headquartered?
Duden is headquartered in Berlin, Germany.
When was Duden founded?
Duden was founded in 1880 by Konrad Duden.
How many employees does Duden have?
Duden employs approximately 200+ people.
What is Duden's revenue?
Duden's revenue: ≈ $60 million annual revenue (est.).
Who are Duden's competitors?
Main competitors in Germany include dwds.de, dict.cc, leo.org.
How does Duden make money?
Mainly digital advertising, premium subscriptions, book sales.
Is Duden publicly traded?
No — Duden is not listed as an independent public company; it is operated by Cornelsen Verlag (Bibliographisches Institut).
How many visitors does Duden get?
Third-party estimates place Duden at roughly 60 million visits per month, mostly from Germany, with 66% mobile traffic.
Is Duden safe?
Duden is an established education site founded in 1880 and ranked #195 in Germany; use the official domain duden.de and HTTPS.
Popular searches
Data sources & confidence
- Company website and public announcementsduden.de
- Third-party traffic estimation providersSimilarweb-class estimates
Visit figures are modelled, not measured
- App store listingsApple App Store, Google Play
- Press and market coverageGermany and international business media
- Data confidence
- Medium for company facts, medium-low for traffic and financial estimates. All modelled figures are rounded and marked with ≈.
- Last updated
- September 2026
Traffic, revenue and audience figures are third-party estimates or derived from sector benchmarks, and are reviewed periodically.
Social media profiles & statistics
Official brand account
Announcements and support
Community and campaigns
Company and hiring updates
Brand and product videos