Stack Overflow
Question-and-answer community for professional programmers.
Stack Overflow at a glance
Stack Overflow is a technology website and one of the most visited sites in United States, currently ranked #98 in the country. It was founded in 2008 by Jeff Atwood, Joel Spolsky and is headquartered in New York City, New York, United States. Today Stack Overflow is owned by Prosus (Stack Overflow). Our estimates put its audience at ≈ 250 million visits per month. The business earns money mainly through advertising, talent/recruitment products, enterprise licensing. Its closest rivals include github.com, reddit.com.
Traffic statistics
Traffic history
| Period | Visits | Change |
|---|---|---|
| Q1 | ≈ 235 million / month | +2% |
| Q2 | ≈ 243 million / month | +3% |
| Q3 | ≈ 250 million / month | +3% |
| Q4 | ≈ 265 million / month | +6% |
Traffic sources
- Direct56%
- Organic search27%
- Referral9%
- Social5%
- Paid3%
Audience & demographics
- Men57%
- Women43%
- Age 25-3432%
- Age 35-4424%
- Age 18-2421%
The audience is concentrated in United States, skewing urban and mobile, with usage peaks in the evening hours.
Geographic reach
- United States86%
Home market
- Diaspora and neighbouring markets7%
- Europe3%
- North America2%
- Rest of world2%
SEO profile
- Estimated organic traffic
- ≈ 75 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
- United States
Top organic keywords
| Keyword | Position | Volume | Traffic share |
|---|---|---|---|
| stack overflow | 1 | Very high | Dominant |
| login | Top 10 | High | — |
| app download | Top 10 | High | — |
| pricing | Top 10 | High | — |
Backlink profile
- Referring domains
- Tens of thousands
- Link profile
- News coverage, directories, blogs and partner sites
- Authority
- High within the United States 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
- ≈ 68% mobile
- Position in country
- Among the leading technology apps in United States
Company information
- Website
- stackoverflow.com
- Sector
- Technology
- Owner
- Prosus (Stack Overflow)
- Owner type
- Subsidiary
- Founders
- Jeff Atwood, Joel Spolsky
- Founded
- 2008
- Headquarters
- New York City, New York, United States
- Employees
- 500+
- Ownership
- Prosus (Stack Overflow) controls the platform. Ownership details are based on public filings and press reporting.
- Revenue
- ≈ $110M annual revenue (est.)
- Languages
- English
- Top traffic sources
- direct, organic search, referral
Financials
- Revenue
- ≈ $110M annual revenue (est.)
- Ownership
- Subsidiary
- Reporting
- Figures based on public filings, press reports and market estimates
Business model & revenue
Stack Overflow operates a technology platform focused on United States. Question-and-answer community for professional programmers. Revenue comes mainly from advertising, supported by the other lines listed below.
- Advertising
- Talent/recruitment products
- Enterprise licensing
Products & services
Related deals on Amazon
As an Amazon Associate, Global Site Index earns from qualifying purchases.
International presence
- Primary market
- United States
- Expansion
- Regional and diaspora audiences beyond the home market
Employee statistics
Customer statistics
Website rankings
- Country rank (United States)
- #98 in this index
- Sector rank
- Leading technology site in United States
- Global rank
- 55
Main competitors
Website comparisons
| Website | Monthly visits | Rank | Notes |
|---|---|---|---|
| github.com | ≈ 150 million / month | #99 class competitor | — |
| reddit.com | ≈ 112 million / month | #100 class competitor | — |
What is Stack Overflow?
Stack Overflow (stackoverflow.com) is a technology platform serving users in United States. Question-and-answer community for professional programmers. It ranks #98 among the most visited websites in the country in this index, within the technology category.
Who owns Stack Overflow?
The site is operated by Prosus (Stack Overflow), founded by Jeff Atwood, Joel Spolsky. The company was established in 2008 and is headquartered in New York City, New York, United States. It employs around 500+.
Traffic and audience
Traffic estimates place Stack Overflow at roughly 250 million visits per month, about 8.3 million per day. Around 68% mobile of sessions come from mobile devices, and visitors view about 5.6 pages per visit with an average session of 5 min.
How Stack Overflow makes money
Revenue comes primarily from advertising, alongside talent/recruitment products, enterprise licensing.
Competitors in United States
Its closest rivals include github.com, reddit.com.
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
- 2008
Stack Overflow is founded in New York City, New York, United States.
- Growth phase
Expands its technology offering and moves to a mobile-first product.
- Today
Ranks #98 among the most visited websites in United States.
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
- Fast, reliable core product used daily
- Deep local language and market support
- Strong developer and integration ecosystem
- Free tier with broad reach
Cons
- Data collection and privacy questions from advertising
- Feature set can be complex for new users
- Limited direct customer support
- Dependence on advertising revenue
Key statistics
Frequently asked questions
Who owns Stack Overflow?
Stack Overflow is operated by Prosus (Stack Overflow). Subsidiary structure, based on public filings and press reporting.
Where is Stack Overflow headquartered?
Stack Overflow is headquartered in New York City, New York, United States.
When was Stack Overflow founded?
Stack Overflow was founded in 2008 by Jeff Atwood, Joel Spolsky.
How many employees does Stack Overflow have?
Stack Overflow employs approximately 500+ people.
What is Stack Overflow's revenue?
Stack Overflow's revenue: ≈ $110M annual revenue (est.).
Who are Stack Overflow's competitors?
Main competitors in United States include github.com, reddit.com.
How does Stack Overflow make money?
Mainly advertising, talent/recruitment products, enterprise licensing.
Is Stack Overflow publicly traded?
No — Stack Overflow is not listed as an independent public company; it is operated by Prosus (Stack Overflow).
How many visitors does Stack Overflow get?
Third-party estimates place Stack Overflow at roughly 250 million visits per month, mostly from United States, with 68% mobile traffic.
Is Stack Overflow safe?
Stack Overflow is an established technology site founded in 2008 and ranked #98 in United States; use the official domain stackoverflow.com and HTTPS.
Popular searches
Data sources & confidence
- Company website and public announcementsstackoverflow.com
- Third-party traffic estimation providersSimilarweb-class estimates
Visit figures are modelled, not measured
- App store listingsApple App Store, Google Play
- Press and market coverageUnited States 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