Free Domain Blacklist Checker: URIBL, SURBL & Spamhaus DBL Scanner
Domain blocklists are separate from IP lists — URIBL and SURBL flag the domains inside your links and from-addresses. This checker sweeps 10 domain lists including Spamhaus DBL, SURBL multi and URIBL, resolves your A-records and MX context, and links each listing to its delisting flow.
Scans domain reputations across Spamhaus DBL, SURBL Multi, URIBL, and SpamEatingMonkey. Checks whether your domain is flagged as spam, abused, or flagged under zero-reputation freshly registered domain rules.
Tool Overview: What It Does & Core Purpose
The Free Domain Blacklist Checker provides comprehensive reputation intelligence for your root domain, sending subdomains, and custom click-tracking links. In modern email filtering systems, receiving mailbox providers (including Google Workspace, Microsoft Defender, and Proofpoint) evaluate not just the sending server’s IP address, but also the reputation of every domain mentioned in the email headers, theFrom: address, and links embedded within the message body.
This tool executes real-time queries against authoritative domain blocklists including the Spamhaus Domain Blocklist (DBL), SURBL Multi, URIBL Realtime, and SpamEatingMonkey Fresh. If your domain or custom tracking domain is listed on any of these registries, your outbound emails will face severe deliverability penalties—frequently landing directly in recipient spam folders regardless of server IP reputation.
Key Advantages & Architectural Benefits
Spamhaus DBL & URIBL Multi Coverage
Inspects the two most authoritative domain reputation databases queried by enterprise spam filtering engines worldwide.
Body Link & Custom Tracking Domain Auditing
Enables marketers to test redirect domains and custom click-tracking CNAMEs before including them in outbound outreach campaigns.
Fresh Domain / Age Alerting
Detects listings on ‘Fresh’ and ‘Zero-Reputation’ registries (e.g. SpamEatingMonkey Fresh) which automatically flag newly registered domains under 15 days old.
Protection Against Shared Domain Poisoning
Identifies if your domain has been blacklisted due to past phishing attacks, compromised CMS software, or malware links.
Direct Delisting Links & Clear Guidance
Offers clear removal procedures and direct web links to submit remediation appeals once spam issues have been resolved.
Instant, Zero-Configuration Scanner
Requires no API key, credit card, or account registration. Test any domain instantly.
Email Marketing & Cold Outreach Integration
How This Tool Accelerates Email Campaigns & Deliverability
Frequently Asked Questions (FAQs)
What is a Domain Blacklist (DBL / URIBL)? ▾
A Domain Blacklist (such as Spamhaus DBL or SURBL) is a database of domain names identified as sources of spam, phishing, scams, or hosting malware. Unlike IP blacklists that track servers, domain blocklists track the domains appearing in email headers and hyperlinked within the email body.
How does a domain blacklist differ from an IP blacklist? ▾
An IP blacklist evaluates the connecting mail server’s IP address (e.g. 46.105.72.90). A domain blacklist evaluates the actual domain name (e.g. yourcompany.com) found in the From header, Return-Path, DKIM signature, or body URLs. If your domain is on a DBL, switching sending IPs will not fix your deliverability.
Why are newly registered domains frequently flagged? ▾
Spammers frequently purchase hundreds of throwaway domains to blast campaigns before abandoning them. Consequently, anti-spam systems place newly registered domains (under 14 to 30 days old) in a ‘neutral’ or ‘low-trust’ quarantine category. Registries like SpamEatingMonkey Fresh explicitly flag domains registered within the last 5 to 15 days.
Can custom tracking domains get blacklisted? ▾
Yes. If spammers or shared users of your email platform send malicious content using identical tracking domain patterns, the tracking domain can end up on URIBL or SURBL. When this happens, any legitimate email containing your tracking links will be marked as spam.
How can AutoSMTP protect domain and IP reputation? ▾
AutoSMTP provisions dedicated bare-metal PowerMTA and KumoMTA clusters with automated throttle controls, Google Postmaster spam-rate monitoring, RFC 5321 in-band bounce suppression, and custom tracking domains configured with dedicated SSL and clean DNS.
Free tools help you audit and optimize individual elements, but sustained enterprise email delivery requires dedicated bare-metal infrastructure. AutoSMTP replaces fragile shared relays with private bare-metal PowerMTA and KumoMTA clusters configured automatically in 15 minutes.
Turnkey Dedicated Bare-Metal Clusters
Provisions fully licensed PowerMTA/KumoMTA clusters on enterprise bare-metal with flat predictable pricing and zero third-party markups.
Automated Gas-Pedal IP Warming
Monitors Google Postmaster spam ratios (<0.10%) and real-time deferrals across clean IPv4 subnets to scale daily send limits safely.
Native FBL & Socket Interceptors
RFC 5321 in-band 550 bounce suppression + automated Yahoo/Outlook CFL ingest to protect sender score automatically.
Fully Managed DNS & Auth
Pre-configured rDNS/PTR, SPF, 2048-bit DKIM, strict DMARC, and BIMI integration synchronized across your domain portfolio.
Deploy Your Dedicated Email Infrastructure Today
Stop risking your sender reputation on shared pools. Get dedicated IPv4 subnets, custom reverse DNS, and automated deliverability engineering.
Key capabilities
- 10 domain/URIBL/SURBL zones
- Spamhaus DBL + SURBL + URIBL coverage
- Tracking-domain relevance explained
- Honest query-blocked reporting.
Frequently asked questions
Can a clean IP still have a blacklisted domain?
Yes — URIBL/SURBL list domains independently of IPs. If your links use a shared shortener or abused tracking domain, campaigns suffer even from pristine IPs.
How do domains get delisted?
Each zone has its own flow (linked per result); domain lists often clear automatically after abuse stops.