Domain Blacklist Checker

Enter Domain

Domain Blacklist Checker | Check 50+ Spam Databases Instantly by SEOScaleUp

No Signup Required

Check If Your Domain Is Blacklisted
Across 50+ Databases

The Domain Blacklist Checker scans 50+ spam databases, DNSBLs, and security engines to see if your domain or IP is flagged. Protect email deliverability and SEO rankings instantly.

✅ 100% Free✅ 50+ Databases✅ No login✅ Instant results

            🔍 Checking example.com

            ✅ Spamhaus: CLEAN

            ✅ SURBL: CLEAN

            ✅ Barracuda: CLEAN

            ⚠️ 0 / 52 blacklists

🛡️

50+
Databases

⚡

Instant
Scan

50+

Blacklists Checked

10M+

Checks Performed

<3s

Scan Time

100%

Free Forever

24/7

Monitoring

Reputation Security Tool

What is the Domain Blacklist Checker?

If your domain or IP gets blacklisted, emails go to spam, website traffic drops, and customers lose trust. Our tool queries 50+ real-time blacklists (DNSBLs, URIBLs, and security engines) to instantly reveal if you've been flagged.

Stop discovering blacklisting after customers complain. Proactively monitor your domain reputation, identify listing sources, and take action to get delisted — all free, no signup required.

📧 Email Blacklists🌐 DNSBL Check🔗 URIBL Scan🛡️ Security Lists

📧

For Email Marketers
Ensure your emails reach the inbox, not spam folders.

🔍

For SEO Specialists
Protect organic rankings — blacklisted domains can be penalized.

Domain Blacklist Checker dashboard showing clean vs listed results

Comprehensive scanning

Everything you need for reputation monitoring

Scan 50+ databases, get instant alerts, and protect your domain.

50+ Blacklist Databases

Includes Spamhaus, SURBL, Barracuda, SpamCop, and 45+ more.

→ Why matters: One scan covers the most important lists used by email providers.

Domain & IP Support

Check both domain names and IPv4/IPv6 addresses.

→ Why matters: Shared hosting means your IP might be listed even if your domain is clean.

Real-time DNSBL Queries

Direct queries to each blacklist — no cached or outdated results.

→ Why matters: Get current status, not stale data from last week.

Detailed Listing Reasons

Shows why your domain was listed (spam, malware, phishing, etc.).

→ Why matters: Understand the cause so you can fix it and request delisting.

Export Results

Download scan reports as CSV or PDF for documentation.

→ Why matters: Share findings with hosting providers or IT teams.

Email Alert Setup

Get notified immediately if your domain gets blacklisted.

→ Why matters: Catch blacklisting early before it impacts deliverability.

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Simple process

Check blacklist status in 3 clicks

No technical knowledge required.

Enter domain or IP

Type any domain name or IP address.

Click Check

We query 50+ blacklist databases.

Review results

See which lists flagged your domain.

Take action

Follow delisting instructions for each list.

Why monitor blacklists

Protect your email deliverability & SEO

Blacklisting kills business. Detect it before it hurts you.

✓

Save Email Deliverability
If you're on Spamhaus, your emails go to spam. Check before sending campaigns.

✓

Protect SEO Rankings
Google can penalize blacklisted domains. Maintain your organic visibility.

✓

Avoid Customer Distrust
"This site may be hacked" warnings destroy conversion rates. Stay clean.

✓

Prevent Malware Flagging
Security blacklists warn visitors — get delisted before browsers block you.

Who needs blacklist monitoring

Essential for businesses & marketers

📧

Email Marketers

✓ Check domain reputation before large email campaigns
✓ Monitor IP blacklists for dedicated sending servers
✓ Verify your domain isn't on SURBL or URIBL
✓ Investigate sudden drop in open rates
✓ Request delisting from specific blacklists

🔍

SEO Professionals

✓ Audit client domains for blacklist flags
✓ Check if malware listings hurt rankings
✓ Monitor competitors' blacklist status
✓ Include blacklist checks in technical SEO audits
✓ Verify site security before link building

🛡️

IT Security Teams

Monitor company domains across all blacklists

✓ Detect compromised servers via blacklist alerts

✓ Investigate listing reasons (spam, malware, phishing)

✓ Automate regular reputation checks

✓ Document delisting requests for compliance

🌐

Website Owners

✓ Check if your shared IP is blacklisted
✓ Monitor after migrating hosting providers
✓ Verify clean status before buying expired domains
✓ Check partner and affiliate domains
✓ Ensure contact forms aren't blacklisted

Why SEOScaleUp

Trusted by 100,000+ businesses

The most comprehensive free blacklist checker online.

50+ databases

Spamhaus, SURBL, Barracuda, SpamCop, and 45+ more.

Real-time queries

Direct DNSBL lookups — no cached or outdated results.

Free forever

No limits, no signup, no credit card required.

Spamhaus Blacklist Guide ↗SURBL Documentation ↗

Compare

SEOScaleUp vs. alternatives

Feature	SEOScaleUp ✓	Manual Single-List Check	Premium Monitoring Tools
Number of blacklists	50+	~ 1-2 manually	40-60
Domain + IP support	✓ Both	~ Limited	✓ Yes
Real-time DNSBL queries	✓ Direct	✓ Manual	✓ Yes
Listing reasons provided	✓ Detailed	~ Basic	✓ Yes
Email alerts	✓ Free	✗ No	✓ Yes
Export results	✓ CSV	✗ No	✓ Yes
Delisting instructions	✓ Included		~ Manual search	✓ Yes
Automated monitoring		✓ Coming soon	✗ No	✓ Yes
Price per month	$0 forever	Free	$29–$199+

FAQ

Common questions about domain blacklisting

What does it mean if my domain is blacklisted?+

Being blacklisted means one or more spam-tracking databases have flagged your domain or IP for suspicious activity — sending spam, hosting malware, phishing, or being compromised. Consequences include emails going to spam, browser warnings, and potential Google penalties.

How does a domain get blacklisted?+

Common causes: compromised WordPress sites sending spam, hacked servers hosting malware, poor email authentication (missing SPF/DKIM/DMARC), sending to purchased lists, or high complaint rates. Even a single infected page can trigger blacklisting.

How do I get removed from a blacklist?+

First, fix the root cause (remove malware, secure forms, set up email authentication). Then request delisting from each blacklist's website. Our tool provides delisting links for every list. Most lists delist within 24-72 hours after verification.

Does blacklisting affect SEO?+

Yes. Google can demote or remove blacklisted sites from search results, especially if flagged for malware or phishing. Security blacklists trigger "Deceptive site ahead" warnings that destroy click-through rates.

How often should I check for blacklisting?+

For active websites and email senders, daily monitoring is recommended. Use our free tool for on-demand checks, and set up email alerts to catch issues immediately. Many blacklists update in real-time.

Can I check my competitor's domain?+

Absolutely. Our tool works for any public domain or IP. Checking competitors can reveal if they're blacklisted — useful for competitive analysis or identifying spammy backlink sources.

What's the difference between IP and domain blacklisting?+

IP blacklisting affects all sites on that server (shared hosting). Domain blacklisting only affects your specific domain. Check both — you might have a clean domain on a blacklisted IP from a previous tenant.

Is your tool really free?+

Yes — 100% free with no hidden limits. We don't require signup, credit cards, or subscriptions. Run unlimited blacklist checks for any domain or IP. We offer premium monitoring as an optional upgrade, but the core checker stays free forever.

Protect Your Reputation

Check your domain against 50+ blacklists instantly — free forever

Join 100,000+ businesses using SEOScaleUp to monitor blacklist status and protect email deliverability, SEO rankings, and customer trust.

🛡️ 50+ databases • Real-time DNSBL • No signup • 100% free

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