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Dnsup alternatives & similar sites

DNSuP — Lookup, Health Check & Blacklist Scanner — 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 Computer Networking →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
dnsblu.com ↗	68 match 2 shared topics	DNSBLU - Professional DNS, Domain & Blacklist Analysis Platform	en	computer-networking	robotsllmsaihumans	emailphone	none
dnssleuth.com ↗	66 match 2 shared topics	DNSsleuth — DNS Lookup & Diagnostics	en	computer-networking	robotsllmsaihumans	emailphone	none
dnscheck.tools ↗	65 match 2 shared topics	dnscheck.tools - check your dns resolvers	en	computer-networking	robotsllmsaihumans	emailphone	none
sshcheck.com ↗	64 match 2 shared topics	Rebex SSH Check	en	information-and-network-security	robotsllmsaihumans	emailphone	none
dnssec.ai ↗	64 match 2 shared topics	DNSSEC.ai - Free DNSSEC Validator, DNS Lookup & Chain Visualizer Tools 2026	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
deep-dns.com ↗	64 match 2 shared topics	Deep DNS \| Professional DNS Analysis & Lookup Tool	en	computer-networking	robotsllmsaihumans	emailphone	none
dnschecked.com ↗	63 match 2 shared topics	Global DNS Propagation Checker - Online Domain DNS Resolution Checking Tool	en	computer-networking	robotsllmsaihumans	emailphone	none
mydnsleaktest.com ↗	63 match 2 shared topics	DNS check	en	information-and-network-security	robotsllmsaihumans	emailphone	none
rgherd.com ↗	63 match 2 shared topics	RG Herd — Independent Community Infrastructure	en	information-and-network-security	robotsllmsaihumans	emailphone	none
dnswatchdog.io ↗	63 match 2 shared topics	DNS Watchdog - DNS Portfolio Management & Security Monitoring	United Kingdom~ en	information-and-network-security	robotsllmsaihumans	emailphone	none
1ip.io ↗	63 match 2 shared topics	Free IP Lookup & VPN Detection \| 1ip.io	en	information-and-network-security	robotsllmsaihumans	emailphone	none
dnsvault.io ↗	63 match 2 shared topics	DNSVault — Enterprise DNS & Domain Infrastructure	en	computer-networking	robotsllmsaihumans	emailphone	none
deepdig.dev ↗	62 match 2 shared topics	deepdig — DNS, TLS, WHOIS, mail & network diagnostics	en	computer-networking	robotsllmsaihumans	emailphone	none
moddns.net ↗	62 match 2 shared topics	modDNS — Open-source DNS filtering by IVPN	en	information-and-network-security	robotsllmsaihumans	emailphone	none
sovereign-protocol.org ↗	62 match 2 shared topics	Sovereign Protocol — Infrastructure-Independent Communication with Native Data Sovereignty	en	information-and-network-security	robotsllmsaihumans	emailphone	none
dnshunt.org ↗	62 match 2 shared topics	DNSHunt.org - Domain Intelligence Tool	en	computer-networking	robotsllmsaihumans	emailphone	none
voino.shop ↗	62 match 2 shared topics	Yurich Panel — Linux & Infrastructure Notes	en	computer-networking	robotsllmsaihumans	emailphone	none
deadboltnetworks.com ↗	62 match 2 shared topics	Deadbolt Networks LLC — Managed Network & Security Services \| Dallas, TX	United States~ en	information-and-network-security Spree Commerce	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.