⛔ Free Tool
Domain Blacklist Checker
Check if your sending IP or domain is listed on major anti-spam blacklists like Spamhaus, SORBS, and Barracuda.
How the Domain Blacklist Checker Works
We query the DNS records of over 100 prominent DNSBLs (DNS-based Blackhole Lists) with your IP or domain to check if any have flagged you as a source of spam.
✅ Key Features
- 100+ Blacklists Checked
- IP & Domain Support
- Real-time Lookup
- Delisting Guidance
Frequently Asked Questions
What do I do if I am blacklisted?
First, stop sending campaigns. Identify why you were listed (usually high bounces or spam trap hits). Clean your list with ZeroBounce AI, then follow the specific blocklist's delisting procedure.
How often should I check my blacklist status?
If you are actively doing cold outreach or high-volume sending, you should monitor your IP and domain status daily or weekly.
Need higher volume?
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