Use our Blocklist Lookup tool to see if your domain or IP is listed on spam databases or blacklists in real time.
We check your domain or IP against major RBL and DNSBL databases to ensure your digital reputation is safe.
Blacklisting affects email deliverability. Use our tool regularly to prevent your server or domain from being blocked.
FAQS
What is a Blocklist Lookup?
This tool checks if a domain or IP address is listed on any known spam or blacklist monitoring services.
How do I check for blacklisting?
Just enter your domain or IP address into the Blocklist Lookup tool above to scan across major DNSBLs and RBLs.
Why is my domain blacklisted?
Domains can be blacklisted due to spam activity, malware hosting, misconfigured mail servers, or compromised content.
What happens if I’m on a blocklist?
Your emails might get rejected or flagged as spam. You may also lose SEO credibility or server trust rating.
How can I fix blocklist issues?
You can request removal from most blacklists by fixing the cause and submitting a delisting request to the authority.
Is this lookup tool free?
Yes. The Blocklist Lookup tool is 100% free, fast, and does not require registration or sign-up to run checks.