Treasure Tools

Email Blacklist Checker

Check if your IP address or domain is listed on major email blacklists. Test against 20+ DNSBLs instantly

Web & SEO
Instant results

Enter an IPv4 address to check directly, or a domain name to resolve and check its IP.

Quick test:

Related Email & DNS Tools

SPF Record Generator
Create valid SPF TXT records for email authentication
DKIM Record Generator
Generate DKIM DNS records and RSA key pairs
DMARC Record Generator
Build DMARC policies for email domain protection
MX Record Lookup
Look up MX records and detect email providers