If your emails aren’t reaching inboxes or your website traffic has dropped unexpectedly, your domain or IP address might be blacklisted. A Blacklist Lookup tool helps you quickly check your status across global blacklists and take action before it impacts your online credibility.
A Blacklist Lookup is an online tool that scans DNS-based blacklists (DNSBLs) and Real-time Blackhole Lists (RBLs) to determine if your website or mail server has been flagged for spam, malware, or suspicious behavior. These blacklists are maintained by security organizations, ISPs, and email service providers to reduce cyber threats.
If your IP or domain is listed, it could cause:
Email delivery failures
Loss of customer trust
Decline in website SEO rankings
IP blocking by major networks
Being on a blacklist means your emails might go to spam or be blocked altogether. Regular checks ensure your marketing efforts aren’t wasted.
A blacklisted domain sends red flags to users and search engines, signaling your site may be unsafe—even if the listing was accidental.
Early detection of blacklist status can help uncover malware infections or server vulnerabilities before they escalate.
Search engines may penalize blacklisted domains, affecting your visibility and ranking in search results.
Use a Reliable Tool
Trusted platforms like MXToolbox, BlacklistAlert, or UltraTools allow quick scans across dozens of blacklists.
Enter IP or Domain Name
Input your server’s IP address or domain into the search field.
View the Results
The tool will list whether you’re blacklisted, and on which specific blacklist(s).
Take Action if Listed
If blacklisted, follow the removal instructions provided by the specific blacklist or consult your hosting/email provider for support.
Spam Email Campaigns
Sending unsolicited bulk emails is a leading cause.
Infected Website Files
Malware or viruses hosted on your domain can lead to automatic blacklisting.
Compromised Email Accounts
Hackers may use your domain/IP to send spam.
Shared IP Reputation
If you're on shared hosting, another site on your IP could be the cause.
A Blacklist Lookup tool is essential for anyone managing a website or email server. Staying off blacklists helps ensure strong email deliverability, solid SEO rankings, and a trusted online presence.
