IP Blacklist Checker
Check if an IP address is listed on major DNS blacklists
Frequently Asked Questions
What is a DNSBL/RBL?
DNSBL (DNS-based Blackhole List) and RBL (Real-time Blackhole List) are lists of IP addresses known for sending spam or malicious traffic. Mail servers check these lists to filter incoming email.
Why is my IP blacklisted?
IPs get blacklisted for sending spam, hosting malware, being part of a botnet, or having compromised security. Shared hosting IPs can be blacklisted due to other users on the same server.
How do I get my IP removed from a blacklist?
Each blacklist has its own delisting process. Generally you need to fix the underlying issue (stop spam, patch vulnerabilities), then request removal through the blacklist provider website.
How to Use
- Enter domain, IP, or URL to check
- Copy data or export report
- Check status indicators
- Review detailed results
FAQ
Why differ from other tools?
Different tools query different servers or use different methods. We show raw responses.
What protocols are checked?
Depends on the tool — DNS, HTTP, HTTPS, WHOIS, and other standard protocols.
How accurate are results?
Queries authoritative sources in real time. Results reflect current network state.
Is my query logged?
No. Queries processed in real time and not stored.
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