Check if your domain or IP is on email blacklists
Enter a domain or IP address to check against email blacklists
Blacklist Checker is a powerful free online tool that checks if a domain or IP address is listed on major email blacklists and spam databases. Scan against 10 popular DNSBLs including Spamhaus, Barracuda, SpamCop, and more.
The Blacklist Checker is a free online tool available on AllToolHub that checks if a domain name or IP address appears on major email blacklists (DNSBLs). Being blacklisted can cause your emails to be rejected or sent to spam. The tool scans against 10 popular blacklist databases to give you a comprehensive status report.
Enter a domain or IP address and click Check. If a domain is entered, the tool first resolves it to an IP address. Then it reverses the IP octets and queries each DNSBL (DNS-based Blackhole List) via Google DNS API. If a response is found, the IP is listed on that blacklist. Results show clean or listed status for each database.
The Blacklist Checker is a free online tool on AllToolHub that checks if a domain or IP address is listed on major email blacklists (DNSBLs) like Spamhaus, Barracuda, and SpamCop.
It checks 10 major DNSBLs including Spamhaus ZEN, Barracuda, SpamCop, SORBS, CBL, UCEPROTECT, PSBL, S5H, and SpamRATS.
Contact the blacklist operator to request delisting. Most have a removal process on their website. Also investigate and fix the root cause (compromised server, spam, etc.).
Yes, the Blacklist Checker is 100% free with no signup required.
Yes, it is fully responsive and works on all devices.