Three steps to protect email deliverability and reputation with automated blocklist monitoring.
Add IP addresses and domains to monitor. Supports IPv4, IPv6, IP ranges, CIDR blocks, and domains. Upload hundreds via CSV or use our REST API for automated management.
Continuously checks your hosts against widely-used RBLs, URIBLs, DNS filters, and threat exchanges. Set check frequency from 48 hours to custom intervals. Proprietary technology reduces false positives through intelligent cross-referencing.
Receive immediate notifications when listings are detected through your chosen channels. Configure contact groups, set notification schedules, and integrate with incident management workflows via webhooks and API callbacks.
Monitoring technology that reduces false positives and delivers reliable results.
Not all blocklist sources are equally reliable. Some have high false positive rates or list IP ranges too broadly. Our technology cross-references multiple sources and applies intelligent filtering to reduce false alarms.
Checks from multiple geographic locations account for regional DNS variations, catching listings only visible in certain regions.
Each alert includes complete context: which blocklist, listing reason, impact assessment, and removal instructions. Reduces time spent researching and enables faster resolution.
Unlike manual point-in-time checks, continuous monitoring catches listings as they appear, minimizing reputation impact and enabling faster delisting.
Start monitoring with our free plan. No credit card required.