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Getwhoisxmlapi alternatives & similar sites

WhoisXML API: #1 for Domain, WHOIS, IP, DNS & Threat Intelligence | WhoisXML API — 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
domaintools.com ↗	70* match	Threat Intelligence & Domain Security Platform \| DomainTools	en	Information and Network Security	–	email	none
firetwittermap.com ↗	70* match	Whois Lookup – Domain & IP Intelligence	en	Information and Network Security	robots	–	none
webroot.com ↗	65* match	Cybersecurity & Threat Intelligence Services \| Webroot	en	Information and Network Security	–	–	none
nordstellar.com ↗	65* match	NordStellar: External threat intelligence for business	en	Information and Network Security HubSpot CMS	robots	–	none
talosintelligence.com ↗	65* match	Cisco Talos Intelligence Group - Comprehensive Threat Intelligence	en	Information and Network Security	robots	–	none
recordedfuture.com ↗	65* match	Advanced Cyber Threat Intelligence \| Recorded Future	en	Information and Network Security	–	–	none
crowdsec.net ↗	65* match	Curated Threat Intelligence Powered by the Crowd \| CrowdSec	en	Information and Network Security WordPress	–	–	none
greynoise.io ↗	65* match	GreyNoise Intelligence \| Real-Time Intelligence For Modern Threats	en	Information and Network Security	robots	–	none
flare.io ↗	65* match	Cut Off Attacks at the Source \| Threat Intelligence - Flare	en	Information and Network Security WordPress WooCommerce	robots llms	email	none
slowmist.com ↗	65* match	SlowMist - Focusing on Blockchain Ecosystem Security (Exchange Security Audit \| Wallet Security Audit \| Blockchain Security Audit \| Smart Contract Security Audit \| Security Consulting \| Defense Deployment \| Blockchain Threat Intelligence \| Blockchain Security)	en	Information and Network Security	–	email	none
reversinglabs.com ↗	65* match	Software Supply Chain Security & Threat Intelligence \| ReversingLabs	en	Information and Network Security	robots	–	none
misp-project.org ↗	65* match	MISP Open Source Threat Intelligence Platform & Open Standards For Threat Intelligence Sharing	en	Information and Network Security	–	email	none
socradar.io ↗	65* match	SOCRadar Extended Threat Intelligence Platform	en	Information and Network Security WordPress	robots	–	none
av-atlas.org ↗	65* match	AV-ATLAS - The Threat Intelligence Platform by AV-TEST	en	Information and Network Security	robots	–	none
safepoint.cloud ↗	65* match	CyberServal – WAF, IP Threat Intelligence & Web Monitoring \| CyberServal	en	Information and Network Security	robots	email	none
apivoid.com ↗	65* match	Cybersecurity APIs for Threat Detection, Analysis & Prevention \| APIVoid	en	Information and Network Security	–	–	none
team-cymru.com ↗	65* match	Real-Time Threat Intelligence for Proactive Threat Hunting	United States~ en	Information and Network Security	robots llms	email	none
cogint.org ↗	65* match	Cognitive Intelligence (COGINT) \| Hybrid Threats, Private Sector	Switzerland~ en	Information and Network Security	robots	–	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.