ClaimedDR12Ahrefs DR: 12/100. Bottom 25%. Measured by Ahrefs. Median 44.eDR100Effective DR: 100/100. Top 25%. Measured by StartupHub.ai. Median 68.Agent59Agent Readiness: 59/100. Top 25%. Measured by StartupHub.ai. Median 41.Speed100Site Speed: 100/100. Top 25%. Measured by Google PageSpeed. Median 62.
FreeISBN provides affordable ISBN registration, barcodes, and distribution resources for independent authors and small publishers.
FreeISBN is a publishing initiative by Bookllo Publishing LLC that offers affordable ISBN registration, barcodes, and distribution resources for independent authors and small publishers. They aim to simplify the ISBN acquisition process and provide essential tools and guidance for self-publishing, including ISBN lookup, barcode generators, and comprehensive guides.
Homepage lists free tools, free barcodes, and free technical support, and states free ISBNs are included with publishing packages. No specific prices are listed in the provided text.
Plans as published by FreeISBN, checked October 2026.
Tech stack
Detected on freeisbn.com, last scanned 14 Oct 2026.Run your own scan
Our own read on real cross-surface visibility rather than raw backlink authority. A site can carry a high Domain Rating and still be invisible where people actually look, which is what this measures.
Our own read on real cross-surface visibility rather than raw backlink authority. A site can carry a high Domain Rating and still be invisible where people actually look, which is what this measures.
How well an AI agent can read and use this site: structured data, clean markup, and whether key facts are reachable without running JavaScript. We scan the live site.
How well an AI agent can read and use this site: structured data, clean markup, and whether key facts are reachable without running JavaScript. We scan the live site.
Whether this company is a safe place to put your data: security posture, privacy signals, and reputation evidence we could verify.
Whether this company is a safe place to put your data: security posture, privacy signals, and reputation evidence we could verify.
API & MCP SecurityMeasured by StartupHub.ai
Measured live, on request
What this measuresHide
What this company’s API or MCP server gives an anonymous stranger: transport, whether anything answers without credentials, CORS, response headers and, when an MCP server replies, which of its tools can be called with no key. Scanned live, on request, because a security verdict months old is worse than none.
What this company’s API or MCP server gives an anonymous stranger: transport, whether anything answers without credentials, CORS, response headers and, when an MCP server replies, which of its tools can be called with no key. Scanned live, on request, because a security verdict months old is worse than none.
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