Free Blacklist Checker Tool
Check whether your IP address or domain is on any blacklist. Uncover the reasons, avoid spam placement, and protect your email deliverability.
Protect your sender reputation from every angle.
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What is an IP Blacklist Checker?
An IP blacklist checker is a tool that scans your IP and domain against the same blacklists that receiving mail servers check before accepting your message. If you're listed, your email can land in spam or get blocked outright.
The Snov.io Blacklist Checker scans major blacklist databases in a single check, so you don't have to check each one manually. It shows whether your IP or domain has been listed, and where.
Spot issues early
Run the IP blacklist check to detect blacklist listings before they impact your email deliverability.
Know exactly where you're listed
See which blacklist databases have listed your IP address or domain.
Take the right action
Use your blacklist check results to fix issues before requesting delisting.
How to use Snov.io Blacklist Checker
Run a blacklist check in five simple steps
Enter your domain
Provide the domain you want to check.
Run the check
Let the tool scan your domain against multiple email blacklist databases.
Review the results
See whether your domain has been listed and by which blacklist providers.
Analyze the listings
Review the reported issue to understand why your domain was blacklisted.
Resolve the issue
Address the cause of the listing and request delisting if needed.
Frequently asked questions
What is an email blacklist?
An email blacklist is a database of IP addresses and domains flagged for spam or suspicious activity. If you're listed, your emails may end up in spam or get rejected. By running an IP blacklist check regularly, you can catch and resolve the issue early.
How do I check my blacklist status?
Simply enter your domain into the Snov.io Blacklist Checker. It scans multiple blacklist databases at once and shows you exactly where you've been listed, if anywhere.
What does "blacklist check" mean?
A blacklist check is a process of verifying whether your IP address or domain appears on one or more email blacklist databases.
Where can I check my blacklist?
You can scan your domain and IP against major email blacklists and see exactly where you've been listed using the free Blacklist Checker from Snov.io.
How do I get off a blacklist?
First, fix the issue that caused the listing; then request delisting if the provider requires it. Learn more in our guide to getting off a blacklist.
Why did I get blacklisted?
Common causes include spam complaints, high bounce rates, compromised accounts, poor email list hygiene, etc.
How long does it take to get removed from a blacklist?
Removal can take anywhere from a few hours to several days; it depends on the blacklist provider. Some listings are removed automatically, while others require a delisting request.
Which blacklists matter most for email?
Different mail providers rely on different blacklists, which is why checking multiple databases matters. Major ones to watch include Spamhaus, Barracuda, SpamCop, and UCEPROTECT.
Can one bad campaign get me blacklisted?
Yes, if it results in high spam complaint rates and excessive bounces, or displays suspicious sending patterns, you can get blacklisted.
Does being blacklisted affect my whole domain?
Not always. Some blacklists list domains, while others list IP addresses. The Snov.io Blacklist Checker checks both, helping you identify which one has been affected.