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Nullcve alternatives & similar sites

NullCVE, Know What to Patch First — 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
rationaledge.io ↗	66 match 2 shared topics	RationalEdge - Know Why	en	information-and-network-security	robotsllmsaihumans	emailphone	none
mindpatch.net ↗	64 match 2 shared topics	MindPatch	en	information-and-network-security	robotsllmsaihumans	emailphone	none
hunters-sec.com ↗	64 match 2 shared topics	Hunters — the context to find the next vulnerability	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
cyze.ai ↗	64 match 2 shared topics	Cyze - Real-World Cybersecurity Guides & Community Knowledge	en	information-and-network-security	robotsllmsaihumans	emailphone	none
nullcathedral.com ↗	64 match 2 shared topics	NULL CATHEDRAL — Vulnerability Research & Disclosure	en	information-and-network-security	robotsllmsaihumans	emailphone	none
flagged.uk ↗	64 match 2 shared topics	Plain English vulnerability monitoring \| StackFlag	United Kingdom en	information-and-network-security	robotsllmsaihumans	emailphone	none
0defect.com ↗	63 match 2 shared topics	0Defect - Smart Contract Auditing Services \| ETH , BSC, SOL, MATIC, NFT	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
karrab7.com ↗	63 match 2 shared topics	Karrab \| Writeups, Hacking guides, Cyber news, and more.	en	information-and-network-security	robotsllmsaihumans	emailphone	none
exploitpedia.co.uk ↗	62 match 2 shared topics	The ultimate knowledge base for exploits \| ExploitPedia	United Kingdom en	information-and-network-security	robotsllmsaihumans	emailphone	none
petri.com ↗	62 match 2 shared topics	Homepage - Petri IT Knowledgebase	United States~ en	technology-and-computing WordPress	robots llmsaihumans	emailphone	none
cyclotronbeam.com ↗	62 match 2 shared topics	FAST Okta to Entra Migration Tool \| Cyclotron Beam	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
2sm.dev ↗	62 match 2 shared topics	2smithereens	en	information-and-network-security	robotsllmsaihumans	emailphone	none
qlabs.tech ↗	62 match 2 shared topics	qLABS – World’s First Quantum-Native Crypto Foundation	en	information-and-network-security	robotsllmsaihumans	emailphone	none
danielv.com.br ↗	62 match 2 shared topics	Bug bounty and hacking writeups from past activities	Brazil en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
0xdiyor.com ↗	62 match 2 shared topics	0xDiyor	en	information-and-network-security	robotsllmsaihumans	emailphone	none
changebase.com ↗	62 match 2 shared topics	Migration & modernization for Microsoft Platforms \| Quest	en	information-and-network-security	robotsllmsaihumans	emailphone	none
chenshiri.com ↗	62 match 2 shared topics	Home - Chen Shiri	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
icswatchdog.com ↗	62 match 2 shared topics	Home \| ICS Watch Dog	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.