Look up an IP address or domain against common blocklists.
Blocklist lookup
IP
203.0.113.10
Lookup
Querying
IP or domain
No signup
Enter an IP or domainWe query each list for your address.
List A
Clear
List B
Clear
List C
Listed
List D
Clear
List E
Clear
List F
Clear
203.0.113.10
Parallel
Fast
Ask every listCommon blocklists are queried in parallel.
Blocklist health
Listed
Clear
5 lists clear
1 listing
Re-check hourly
Severity
Prioritised
How serious is it?Listings differ in severity. See which ones matter.
Listing impact
AI
Blocklist AWidely used
Fix first
Blocklist BUsed by some
Then fix
Blocklist CRarely used
Low impact
Blocklist DInformational
Watch
Ranked by impact
Delist steps
AI ranks which listing matters mostNot every listing hurts equally. The model weighs each blocklist by how much it affects delivery and tells you where to start.
IP listed on [List]Start delisting
Listing clearedBack to normal
New domain listingInvestigate
Email
Chat
Webhook
Hourly checks
Alerts
Get alerted next timeMonitoring alerts you if you are listed again.
Stay clean
Validate lists before sending
Honour unsubscribes
Warm new IPs slowly
Watch complaint rate
Authenticate every domain
Prevention
Simple
Stay off the listsHabits that keep your address clean.
Enter
Query
Score
AI priority
Monitor
Prevent
IP or domain
Results
Blocklist A[Listed / Not listed]
Blocklist B[Listed / Not listed]
Blocklist C[Listed / Not listed]
Sample output. [Connect to live lookups before launch]
Monitor continuously
Reputation monitoring checks for you and alerts the team.