Blacklist Checker

The Blacklist Checker scans if a domain or IP is listed on anti-spam databases—e.g., "example.com on Spamhaus?" Enter a URL or IP, and it checks dozens of blacklists, flagging issues that block emails or site access. Webmasters maintain reputation, marketers ensure campaign success, and businesses avoid downtime. Accessible online with no downloads, it’s fast and thorough, offering delisting tips if flagged. For SEO, blacklisting hurts traffic—search engines may penalize inaccessible or spammy sites. Pair it with the Find DNS Record tool to verify MX settings, fixing email issues tied to blacklists. It’s critical for shared hosting users, where neighbors’ actions can affect you. By confirming blacklist status, this tool safeguards deliverability, supports SEO through consistent uptime, and protects user trust—essential for ranking well and growing an engaged audience.