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Pubkeyspace alternatives & similar sites

PubKeySpace - Developer Key And Identity Inventory — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Information And Network Security →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
csanchez.dev ↗	67 match 2 shared topics	CSanchezAustin \| Musings and experiments on Identity, DevOps, and Security.	en	information-and-network-security	robotsllmsaihumans	emailphone	none
0-x.dev ↗	65 match 2 shared topics	0xDev - Security Engineering & Development	en	information-and-network-security	robotsllmsaihumans	emailphone	none
gatewayapis.com ↗	65 match 2 shared topics	Ruvia - Ready Made APIs for Developers	en	information-and-network-security	robotsllmsaihumans	emailphone	none
eshard.io ↗	64 match 2 shared topics	eShard \| Security investigations for critical missions	en	information-and-network-security X-Cart	robotsllmsaihumans	emailphone	none
eshard.org ↗	64 match 2 shared topics	eShard \| Security investigations for critical missions	en	information-and-network-security X-Cart	robotsllmsaihumans	emailphone	none
eshard.net ↗	64 match 2 shared topics	eShard \| Security investigations for critical missions	en	information-and-network-security X-Cart	robotsllmsaihumans	emailphone	none
inteldevops.com ↗	64 match 2 shared topics	Intel DevOps \| Intelligence Meets Development Operations	en	technology-and-computing	robotsllmsaihumans	emailphone	none
auth0-alternative.net ↗	64 match 2 shared topics	Zitadel vs Auth0: The Definitive Comparison for Enterprise Identity Infrastructure \| ZITADEL	United States~ en	information-and-network-security Sanity	robotsllmsaihumans	emailphone	none
dotscience.com ↗	64 match 2 shared topics	DOTscience - Cybersecurity and Espionage Tactics	en	technology-and-computing WordPress	robotsllmsaihumans	emailphone	none
cryptoinheritance.org ↗	64 match 2 shared topics	Coinkite: Bitcoin Security and Fun Devices	en	technology-and-computing	robotsllmsaihumans	emailphone	none
1password.dev ↗	64 match 2 shared topics	1Password Developer Documentation - 1Password Developer	en	technology-and-computing	robots llmsaihumans	emailphone	none
neervector.com ↗	63 match 2 shared topics	Native Algorithms – Brandy Gordon's Master Level Cybersecurity Portfolio	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
nekovault.io ↗	63 match 2 shared topics	NekoVault - DeFi Security and Utility Solutions	en	technology-and-computing Shopify	robotsllmsaihumans	emailphone	none
sitecorerunner.com ↗	63 match 2 shared topics	Sitecore Runner \| Rob Reilley \| Sitecore MVP \| A place for Sitecore tips, tricks and shared experiences.	en	technology-and-computing WordPress	robotsllmsaihumans	emailphone	none
astronauticsec.com ↗	63 match 2 shared topics	Making Space Safe	en	information-and-network-security	robotsllmsaihumans	emailphone	none
astrocybersecurity.com ↗	63 match 2 shared topics	Making Space Safe	en	information-and-network-security	robotsllmsaihumans	emailphone	none
0xsp.com ↗	63 match 2 shared topics	Game of Hide and Seek: Detecting Dynamic API Resolution at Runtime With Aether - 0xsp SRD - Security Research & Development	en	information-and-network-security WordPress	robots llmsaihumans	emailphone	none
castleio.com ↗	63 match 2 shared topics	Castle – Stop bots and account abuse in minutes	en	information-and-network-security	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.