Open-source SEO platform: keyword research, backlinks, rank tracking, site audits and AI visibility monitoring, self-hostable or pay-as-you-go, with MCP access for AI agents.
In February 202One-line growth story, compiled by us from public sources; speculation is marked separately below.
Checkout: checkout.stripe.com
“open-source alternative to Ahrefs; self-host; Product Hunt #1”Quote from the site
New-user source: Other (Direct / referral / email / paid). Direct 42.6%, search 43.0%, referral 8.6%; search terms are mostly brand keywords (openseo, openseo github; brand keywords 77.1%), with non-brand keywords only like backlink checker. Referrals come from stripe.com, saashub.com and ycombinator.com, and exposure also comes from Product Hunt and the open-source GitHub repo (the homepage shows 24.6k). last month visits were 47,278, up 165.29% month over month.
Top channel measured by Similarweb, others estimated by rank
| Attributable new users, last month | Share |
|---|---|
| SEO | 9% |
| Other | 91% |
Direct + brand search 77%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
| Country | Share of visits |
|---|---|
| United States | 22.91% |
| India | 17.04% |
| Indonesia | 6.3% |
| Vietnam | 5.93% |
| Germany | 4.01% |
English
X (Twitter), YouTube, Facebook
281 keywords · brand ~77% · organic 99.99% / paid 0.01%
| Similarweb top 5 keywords |
|---|
| openseo |
| open seo |
| openseo github |
| backlink checker |
| open seo github |
Non-brand queries: backlink checker
17 referring sites
| Site | Share of referrals |
|---|---|
| stripe.com | 1.19% |
| saashub.com | 0.55% |
| ycombinator.com | 0.41% |
| Category | Share of referrals |
|---|---|
| Programming and Developer Software | 92.18% |
| Computers Electronics and Technology - Other | 3.52% |
| Business Services | 0.41% |
| Search Engines | 0.22% |
| Investing | 0.1% |
About 47,278 last month (Similarweb estimate), #43 of 606; the month before was 23,146. Opening checkout is not paying, so this is not revenue.
New-user source: Other (Direct / referral / email / paid). Mostly referrals, email or paid, or mostly direct with no clear source Direct 42.6%, search 43.0%, referral 8.6%; search terms are mostly brand keywords (openseo, openseo github; brand keywords 77.1%), with non-brand keywords only like backlink checker. Referrals come from stripe.com, saashub.com and ycombinator.com, and exposure also comes from Product Hunt and the open-source GitHub repo (the homepage shows 24.6k). last month visits were 47,278, up 165.29% month over month.
Self-hosting is free; Base plan $10/month (includes $10 of usage credit), keyword lookups about $0.05 each, backlink domain overview about $0.08 each, AI prompt checks about $0.002 each; trial comes with $0.50 credit
Dossier confidence: high. Parts 1 and 2 come from reading the site and Similarweb data; part 3 from public reporting, founder posts, Wayback snapshots, WHOIS and similar, with speculation marked.
The number: checkout visits is Similarweb's estimate of visits from the site to a checkout payment page; opening checkout is not paying, so this is not revenue. Small sites land on fixed buckets.
Data through last month. Page updated 2026-10-26.
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