Find out if your domain is on an email blacklist before you hit send.

Check your domain or sending IP against real-time RBLs, spot reputation issues before campaigns go live, and see exactly what to fix to stay out of spam.

90+ RBL Providers

Executive-grade reports

Built for MSPs & agencies

No login required for single scans. Upgrade for scheduled monitoring.

Blacklist Scanner

Check single domains or bulk analyze multiple targets with advanced filtering

System Online

Domain or IP Address

RBL Profile (Upgrade for more)

🔒 PRO

Initializing scan...

💡 Pro tip: Try scanning "google.com" for a demo with realistic results. Free accounts include the Minimal profile (20 high-impact RBLs). Upgrade to Pro for Standard (50) or Extended (90+) profiles with advanced filtering and historical tracking.

📊 Viewing Results For: 1 of 1 domains

Scan Summary

Scan completed successfully

A+

Grade

95%

Health Score

Listed

Clean

Response Time

0.8s

↓ 15% faster

Critical Listings

↑ 1 new

Scan Coverage

RBL Providers

Provider Types

RBL Provider	Type	Status	Impact	Response Time
Run a scan to see results

Everything you need for reputation monitoring

Comprehensive tools to check, monitor, and protect your sending reputation across all major blacklists.

🔍

90+ RBL Coverage

Check against the most comprehensive list of real-time blacklists, including Spamhaus, Barracuda, SORBS, and niche providers.

Updated daily with new providers

📊

Health Scoring

Get a clear 0-100 health score and letter grade showing your domain's reputation status at a glance.

Weighted by provider impact

📋

Bulk Scanning

Check hundreds of domains at once with CSV import. Perfect for agencies managing multiple client accounts.

Up to 200 domains per scan

📈

Historical Tracking

Monitor reputation trends over time. See when listings appeared and track your delisting progress.

90-day history retention

📄

Professional Reports

Generate white-label PDF and HTML reports for clients. Add your agency branding and export in multiple formats.

Executive-ready summaries

🔔

Real-time Alerts

Get notified immediately when a domain gets listed. Catch problems before they impact your campaigns.

Email, Slack, and webhook alerts

🚀 How It Works

Check your reputation in 4 simple steps

From scan to remediation in minutes, not hours.

🌐

Enter Domain

Type your domain name or IP address and select an RBL profile.

⚡

Instant Scan

We query up to 90+ blacklist providers in real-time simultaneously.

📋

Review Results

See your health score, grade, and any listings with impact ratings.

🔧

Take Action

Follow our remediation guidance or export reports for your team.

👥 Who's It For

Built for deliverability professionals

Whether you're managing one domain or hundreds, we've got you covered.

📧

Email Marketers

Check your sending domains before campaigns go live. Catch blacklistings before they tank your open rates and damage your sender reputation.

🏢

Agencies & MSPs

Monitor client portfolios at scale. Generate branded reports, organize by client, and catch issues before your customers notice.

💼

Sales Teams

Ensure your outreach actually reaches prospects. Check your sending infrastructure before scaling cold email campaigns.

🔧

IT Administrators

Monitor mail servers and sending IPs proactively. Get alerts when your infrastructure lands on a blacklist.

💰 Pricing

Plans for every team size

Start free, upgrade when you need more power.

Monthly

Annual (Save 20%)

Free

$0/mo

Perfect for occasional checks

Unlimited single scans
Minimal RBL profile (20)
Health score & grade
Basic recommendations
Community support

Pro Monitor

$29/mo

For brands & professionals

10 monitored domains
Standard profile (50 RBLs)
Daily automated scans
Email alerts on listings
Historical tracking
PDF/HTML reports
Priority email support

Agency & MSP

$99/mo

For agencies & consultants

100 monitored domains
Extended profile (90+ RBLs)
White-label reports
Client organization
Bulk CSV imports
API access
Dedicated support

Enterprise

Custom

For high-volume senders

Unlimited domains
Custom RBL profiles
SSO/SAML authentication
Webhook integrations
Custom SLAs
Dedicated account manager
24/7 priority support

❓ FAQ

Frequently asked questions

Everything you need to know about blacklist monitoring.

An RBL (Real-time Blackhole List) or DNSBL is a database of IP addresses and domains known to send spam. Email servers check these lists to decide whether to accept, reject, or filter incoming mail. Being listed can cause your emails to be blocked or sent to spam.

For active sending domains, we recommend daily automated monitoring. For less active domains, weekly checks are typically sufficient. Our Pro and Agency plans include automated daily scans with alerts so you'll know immediately if something changes.

Don't panic. First, identify the root cause (compromised account, spam complaints, etc.). Then, follow the blacklist's delisting process. Most have online forms or automated procedures. Our tool provides specific remediation guidance for each blacklist.

High-impact lists like Spamhaus (SBL, XBL, PBL), Barracuda, SpamCop, and SORBS are used by major email providers. Being listed on these will significantly impact deliverability. Our health score is weighted based on each blacklist's real-world impact.

Yes! You can check both domains and IP addresses. For domains, we also resolve and check associated mail server IPs. Enter any valid domain name or IPv4 address in the scan field.

Yes, API access is available on Agency and Enterprise plans. The RESTful API allows you to integrate blacklist checking into your own applications, automate workflows, and build custom dashboards. Full documentation provided.