Home / Tools / Blacklist Checker

Blacklist Checker for 8.8.8.8

Check if an IP or domain is listed on email blacklists.

Results for 8.8.8.8
Checked: Jun 18, 2026 at 16:12 UTC
IP: 8.8.8.8
zen.spamhaus.org Listed
bl.spamcop.net Clean
b.barracudacentral.org Clean
dnsbl.sorbs.net Clean

What is Blacklist Checker?

Blacklist Checker tests whether an IP address appears on major email blacklists (DNSBLs). A blacklisted IP means your emails are being rejected or sent to spam. Check regularly if you run your own mail server or send bulk email.

How to use this tool

  1. Enter an IP address to check.
  2. The tool queries multiple DNSBL databases.
  3. See which blacklists list your IP and which don't.
  4. If listed, follow the blacklist's removal process.
  5. Check regularly to catch issues before they affect delivery.

Frequently asked questions

What is a blacklist/DNSBL?
A database of IP addresses known to send spam. Email servers query these lists to decide whether to accept, reject, or spam-filter incoming mail. Major lists include Spamhaus, Barracuda, and SORBS.
Why is my IP blacklisted?
Common reasons: your server sent spam (possibly from a compromised account), you're on shared hosting with a spamming neighbor, or a previous owner of the IP was a spammer. Some lists are aggressive and list entire IP ranges.
How do I get delisted?
Each blacklist has its own removal process. Spamhaus requires you to fix the issue and request removal. Some lists remove automatically after the spam stops. Check each listing's removal instructions.
Should I monitor my IP regularly?
Yes, if you send business email or newsletters. Set up monitoring to alert you when your IP gets listed. Catching it early means fixing it before customers notice delivery problems.

Recently checked

8.8.8.8

Related tools

Email Validator

Verify if an email address is valid with syntax and MX record checks.

SPF Record Checker

Verify SPF record configuration for email authentication.

DKIM Record Checker

Check DKIM DNS record for email signing verification.

DMARC Record Checker

Analyze DMARC policy and reporting configuration.

Email Header Analyzer

Parse and analyze email message headers for delivery issues.

AI Ready Checker

Check if your website is optimized to be recommended by AI assistants like ChatGPT and Claude.

Need a place to build your project?

Launch a cloud workspace with Claude Code. Your AI builds it, we host it.

Start for $5/month