Free Domain Blacklist Checker

Safeguard your domain reputation with our free Domain Blacklist Checker tool. Quickly verify if your domain is listed on major blacklists, ensuring your emails maintain high deliverability and your brand remains trusted by recipients and email providers.

Protect Your Domain Reputation

Protect Your Domain Reputation

Your domain is the foundation of your digital identity. When it appears on a blacklist, the consequences extend far beyond bounced emails. Major email providers use your domain's reputation to sift through incoming messages, and just a single blacklist entry can lead to delivery failures for many messages. Our Domain Blacklist Checker monitors your domain against an extensive network of Domain Block Lists (DBLs), URI blacklists, and reputation databases that email providers actually consult when making filtering decisions.

How Domain Blacklist Checker Works

How Domain Blacklist Checker Works

Unspam.email’s Domain Blacklist Checker runs multiple DNS queries on well-known blacklist operators and gets you results in under 10 seconds. The tool checks your domain against various lists that watch for different threats. Some of these blacklists focus on domains tied to phishing attacks, while others look out for malware, spammy activities, or issues stemming from poor email practices. Each database has its own rules for how domains get listed or removed, so it's important to know why and where your domain might be flagged to handle the situation effectively.

How Does Unspam Email Spam Checker Work?

Why It's Important to Monitor Your Domain Reputation

If your domain gets blacklisted, it can create a domino effect that disrupts your email operations. Many businesses only find out they're on a blacklist after seeing a drop in email deliverability and receiving numerous complaints from customers. By then, it can take weeks or even months to restore your sender reputation. Keeping an eye on your reputation can help you catch issues early, often before they become widespread. Early detection gives you the chance to dig into what went wrong, make the necessary adjustments, and ask for delisting before the issue impacts your overall email efforts.

Prioritize Issues with Tier-Based Blacklist Intelligence

Different blacklist databases carry varying levels of influence. Our tool sorts each blacklist by tier and shows you which major email providers take each database into account. This gives you a clear view of which listings could seriously harm your email operations and which ones you might be able to tackle later.

Prioritize Issues with Tier-Based Blacklist Intelligence

Maximize Inbox Placement with a Clean Domain Reputation

A clean domain reputation is key to getting your emails into inboxes. If you appear on a blacklist, it can raise red flags and lead to extra scrutiny, possibly harming your long-term reputation. Even once you're off a blacklist, the fact that you were on it can still affect future email filtering decisions. That's why it's just as important to prevent these issues as it is to fix them once they happen. Our free checker not only helps you see if you're listed but also digs into potential causes based on the kinds of blacklists that have flagged you and when they happened.

Maximize Inbox Placement with a Clean Domain Reputation

Take Action with Detailed Diagnostics and Clear Next Steps

Our Domain Blacklist Checker delivers results in an intuitive dashboard format that puts critical information front and center. Understanding your domain blacklist results involves:

1.

Overall Blacklist Status Summary:

You'll see the total number of blacklists checked and the count of any positive matches. This high-level summary lets you quickly gauge the severity of your situation, whether you're dealing with a single isolated listing or a widespread reputation problem requiring urgent attention.
2.

Domain Information Context:

Understanding your domain's characteristics helps contextualize blacklist results.
3.

Tier-Based Classification System:

Each blacklist is marked with its tier level. Industry Standard lists are Tier 1 databases with the highest impact on deliverability, while Regional and Specialized lists may have more limited adoption. This classification system helps you prioritize remediation efforts by focusing first on the listings that affect the largest portion of your email delivery infrastructure.
4.

Clean Status Verification

When your domain shows clean across all checked blacklists, you receive positive confirmation with the count of databases that verified your clean status.

Overall, our Domain Blacklist Checker is more than just a tool to check your status. It offers insights that help you understand your domain's reputation, fix any issues, and avoid future problems that could hinder your ability to communicate reliably with customers, partners, and other stakeholders.

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Testimonials
“Remove email from spam folder”
Unspam provides actionable insights for improvement, allowing me to make changes to my emails with confidence. This helps me ensure that our emails reach the inbox.
Luca C.
Luca C.
Banking
“Improve email deliverability, best tool!”
The heatmap is particularly useful because it shows you precisely which parts of your email pique interest and how to enhance them to increase CTR.
Mary A. B.
Mary A. B.
Internet Service Provider
“Fixed spam issues with email checker”
Just a couple of emails and I've already fixed several deliverability issues. Wow, this is awesome.
Ahmad Awais
Ahmad Awais
Google Dev Advisory Board