Enter a URL
Is your website or email server not performing as expected? There’s a chance your domain or IP address might be blacklisted. Use our Blacklist Lookup Tool to instantly check your status across major DNS-based blacklists. It’s fast, free, and requires no registration.
A Blacklist Lookup Tool allows you to check whether your domain name or IP address appears on any public DNS blacklists (DNSBLs). These blacklists are used by internet service providers (ISPs), email providers, and search engines to block spam and malicious activity.
Being blacklisted can lead to:
Emails going to spam folders
Lower search engine rankings
Blocked website access
Loss of reputation and traffic
Our tool helps you stay ahead of these issues by checking your status across multiple authoritative blacklists in real time.
Enter your domain name or IP address in the search bar.
Click the Check button.
Instantly see the blacklist status across 50+ known DNSBL databases.
Our tool checks top blacklist services including:
Spamhaus
Barracuda
SORBS
SURBL
UCEPROTECT
and many others
If your domain or IP is blacklisted, your emails may be blocked or marked as spam. It can also impact your website’s visibility and credibility.
For businesses, this can result in lost leads, reduced revenue, and damaged customer relationships.
That’s why regular monitoring is critical. Early detection allows you to fix the issue and request removal from the blacklist.
Checks against over 50 DNS-based blacklists
Fast, reliable, and easy to use
No signup or download required
Designed for webmasters, SEOs, digital marketers, and IT professionals
If your domain or IP is found on a blacklist:
Review your recent email or website activity
Scan your server for malware or spam-sending scripts
Check your SMTP configurations and authentication (SPF, DKIM, DMARC)
Visit the blacklist provider’s website and follow their removal instructions
Need help with email privacy? Try our Email Privacy Checker.
Website owners looking to protect their domain reputation
Email marketers ensuring higher deliverability
SEO experts monitoring their site's trustworthiness
System administrators keeping servers clean and secure
Staying off blacklists is essential for maintaining strong digital communication. Regular checks help ensure your site and server maintain a trustworthy online presence.
Start using the Blacklist Lookup Tool today to stay secure and ensure uninterrupted service.
A DNS-based blacklist (DNSBL) is a database of IP addresses or domains flagged for sending spam, spreading malware, or suspicious behavior. Mail servers and ISPs use these to filter traffic.
Yes, this tool is completely free to use and does not require any registration or login.
First, identify and fix the root issue (spam, malware, or misconfiguration). Then, visit the blacklist’s website and request removal or follow their delisting procedure.
It’s good practice to check monthly, or immediately if you notice issues like high email bounce rates or a sudden drop in traffic
