Domain Blacklist Check
Instantly check your domain against 50+ real-time DNS blacklists — spam, malware, phishing, and botnet lists.
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What we check
Spam Blacklists
Spamhaus ZEN, SpamCop, Barracuda, SORBS, UCEPROTECT and 30+ more spam-tracking lists.
Malware & Botnet
Spamhaus XBL/CBL, Abusix, and botnet tracking lists that flag infected or hijacked servers.
Phishing & URIs
SURBL, URIBL, and Spamhaus DBL/HBL for domain-level phishing and URI reputation.
IP Reputation
Cross-checks the domain's resolved IP against 40+ IP-based reputation databases.
How to use
- 01
Enter any domain name above — e.g. yourdomain.com.
- 02
We resolve its IP then run parallel DNS queries against 50+ real DNSBL zones in seconds.
- 03
Review the results. Listed entries show which blacklist flagged you and a direct link to request delisting.
What is a domain blacklist check?
DNS-based blacklists (DNSBLs) are real-time databases used by mail servers, firewalls, and spam filters to block traffic from domains and IPs with a history of spam, malware, or abuse. Being listed can cause your emails to bounce or your website to be flagged by browsers.
Fix email deliverability
Discover why your emails land in spam or get rejected by checking if your domain or mail server IP is blacklisted.
Protect sender reputation
Regularly monitor your domain's blacklist status to catch and remove listings before they impact delivery rates.
Investigate suspicious domains
Check any domain to see if it has been flagged for phishing, malware hosting, or spam activity.
Pre-send domain audit
Before launching email campaigns, verify your sending domain is clean across all major blacklists.