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Sefaria: The API for Jewish Wisdom
How 29 people built the world's most sophisticated digital library of sacred texts
While Silicon Valley chases AI chatbots, a lean team in New York has quietly built the most advanced digital library of sacred texts in existence. Sefaria isn't just putting ancient scrolls online—it's creating a living, interconnected web of 3,000 years of Jewish thought that's become indispensable to 2M+ monthly users.
"Sefaria isn't a website—it's infrastructure for Jewish literacy, and it's winning because it chose depth over scale."
The Silent Takeover of Religious Tech
With 2.15M monthly visits and a #11,721 global rank, Sefaria punches way above its weight class. The real story is in the traffic: 54% direct, 41% organic. This isn't viral growth—it's habitual use. People don't discover Sefaria; they return to it like a utility. The keyword 'sefaria' alone drives 36K searches monthly, but 'talmud' (83K) and 'psalm 91' (84K) reveal the strategy: own the search intent for the entire Jewish canon, not just the brand.
The 29-Person Cathedral
Here's the founder-relevant kicker: Sefaria operates at a 100,000:1 user-to-employee ratio. For context, that's 10x more efficient than Wikipedia. Their tech stack—jQuery, Tailwind, Bootstrap—proves they're not chasing shiny objects. They're building durable software. CEO Daniel Septimus and CPO Lev Israel have engineered a product that scales through linkability: every verse, every Talmudic debate is a deep-linkable entity. This is how you build an API for an entire culture.
The product moat is the network effect of citations. When a rabbi in Brazil links to Sanhedrin 59a in a blog post, and a student in Tel Aviv clicks it, they're not just visiting Sefaria—they're reinforcing its centrality. This is why 72.7% of traffic comes from undefined regions (likely the US, Israel, and diaspora hubs): Sefaria has become the canonical source of truth, the Wikipedia of Jewish texts, but with better UX and actual revenue.
- Owns search intent for 80K+ monthly religious queries
- 54% direct traffic signals product-market fit and habit formation
- Built on ancient texts but architected like a modern API
- Profitable at $2.9M revenue with no VC funding disclosed
The Unbundling of Religious Authority
Sefaria proves that in 2024, infrastructure beats content. They don't publish—they platform. Every user becomes a distributor, every link a vote for relevance. That's how 29 people build a $2.9M business that outlasts media companies 10x their size.
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Sefaria: a Living Library of Jewish Texts Online
The largest free library of Jewish texts available to read online in Hebrew and English including Torah, Tanakh, Talmud, Mishnah, Midrash, commentaries and more.
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About sefaria.org
The largest free library of Jewish texts available to read online in Hebrew and English including Torah, Tanakh, Talmud, Mishnah, Midrash, commentaries and more.
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sefaria.org uses 24 technologies across their website including Font Awesome, Adobe Fonts, HSTS, Sentry, and more.
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Font Awesome, Adobe Fonts, Google Fonts
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HSTS
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Sentry
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PHP
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Strapi
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cdnjs, unpkg
Traffic & Audience
sefaria.org receives approximately 2.2M monthly visitors and ranks #11,721 globally. The website has a bounce rate of 29% with visitors viewing an average of 18.6 pages per visit. Users spend an average of 5:46 on the site.
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