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Oooverflow alternatives & similar sites

OOO — DEF CON CTF — 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 Technology And Computing →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
ctfworld.org ↗	63 match 2 shared topics	FallWire CTF 2026 — The call of the fall	en	information-and-network-security	robotsllmsaihumans	emailphone	none
addas.online ↗	63 match 2 shared topics	Ahmad Addas — Innovation	en	information-and-network-security	robotsllmsaihumans	emailphone	none
nodataarchitecture.com ↗	62 match 2 shared topics	No-Data Architecture — Designing Systems Without Personal Data Dependency	en	technology-and-computing	robotsllmsaihumans	emailphone	none
egx.com ↗	62 match 2 shared topics	eliogrieco.com — eliogrieco.com	en	information-and-network-security	robotsllmsaihumans	emailphone	none
vlipact.com ↗	62 match 2 shared topics	VLI Pact — Verified Transactions	en	information-and-network-security	robotsllmsaihumans	emailphone	none
mcpblog.dev ↗	62 match 2 shared topics	MCPBlog.dev — The MCP Ecosystem Blog	en	information-and-network-security	robots llmsaihumans	emailphone	none
mcppedia.org ↗	62 match 2 shared topics	MCPpedia — Find the Right MCP Server	en	information-and-network-security	robots llmsaihumans	emailphone	none
1f.ai ↗	62 match 2 shared topics	1F — Drop-in blockchain infra, real-time stream, and forensics	en	technology-and-computing	robotsllmsaihumans	emailphone	none
volatilethunk.com ↗	62 match 2 shared topics	VolatileThunk — Louis Jackman's Website	en	technology-and-computing	robotsllmsaihumans	emailphone	none
leaf-community.com ↗	62 match 2 shared topics	LEAF Community	en	information-and-network-security	robotsllmsaihumans	emailphone	none
leafidentity.com ↗	62 match 2 shared topics	LEAF Community	en	information-and-network-security	robotsllmsaihumans	emailphone	none
spectator98.com ↗	62 match 2 shared topics	// Marwan Aldahmani — Researcher & Builder	en	technology-and-computing Spree Commerce	robotsllmsaihumans	emailphone	none
aliasgar.dev ↗	62 match 2 shared topics	Ali Asgar Lokhandwala — Systems Engineer	en	information-and-network-security	robotsllmsaihumans	emailphone	none
leakcatch.com ↗	62 match 2 shared topics	LeakCatch — Know Who Leaked. Every Time.	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
anchora.markets ↗	62 match 2 shared topics	Anchora — RWA Trust Infrastructure on Solana	en	technology-and-computing	robots llmsaihumans	emailphone	none
0xchiru.dev ↗	62 match 2 shared topics	Chiranjeevi Diviti — Cybersecurity Engineer	en	information-and-network-security Spree Commerce	robotsllmsaihumans	emailphone	none
mcp-scorecard.ai ↗	62 match 2 shared topics	MCP Scorecard — Trust Scores for Every MCP Server	en	technology-and-computing	robots llmsaihumans	emailphone	none
mcpscorecard.com ↗	62 match 2 shared topics	MCP Scorecard — Trust Scores for Every MCP Server	en	technology-and-computing	robots llmsaihumans	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.