- Operator
- URIBL.com
- Zones
- multi.uribl.com, black.uribl.com, grey.uribl.com, red.uribl.com
- Lists
- domain names
- Status
- Active
- Severity
- Major
- Lookup
- uribl.com
- Removal
- lookup form → delist request after registering: uribl.com
- Cost
- free (public zones)
- Turnaround
- undocumented
- Auto-expiry
- undocumented
- Source
- URIBL.com: URIBL
What is URIBL?
URIBL lists domain names seen in the bodies of spam. The multi.uribl.com zone combines three lists: black (127.0.0.2, domains URIBL considers spammer-owned), grey (127.0.0.4, domains with mixed reputation) and red (127.0.0.8, young or actively monitored domains). Sums such as 127.0.0.6 mean a domain sits on more than one. The zone answers 127.0.0.1 to a resolver it refuses, which is not a listing.
The red list is the one cold senders meet: it exists to watch newly registered domains, and a freshly bought outreach domain that starts sending links straight away fits its profile exactly. That is a reason to register domains ahead of time and to send without links in the first weeks, not a sign of a compromise.
| 127.0.0.2 | Black: Active spam domain |
| 127.0.0.4 | Grey: Mixed reputation |
| 127.0.0.8 | Red: Elevated spam activity |
| 127.0.0.6 | Black + grey |
| 127.0.0.10 | Black + red |
| 127.0.0.14 | Black + grey + red |
How serious is a URIBL listing?
Major: corporate gateways and scoring filters consult this list, so a listing costs placement at a meaningful share of receivers. Clear it promptly. The lookup at uribl.com is the reference for whether you are listed today.
Why your domain got listed
What the operator lists: Black = spammer-owned domains; Grey = likely spam; Red = young/monitored domains — cold-email domains under 30 days can hit Red.
How to remove your domain from URIBL
- 1
Look the domain up at uribl.com
The operator's own lookup shows whether the domain is listed and, where the list publishes reasons, why. Third-party checkers can lag or misread the zone.
- 2
Fix the cause before you ask
Black = spammer-owned domains; Grey = likely spam; Red = young/monitored domains — cold-email domains under 30 days can hit Red. A removal request while the cause is live is the fastest route to a repeat listing, and repeat listings are slower to clear.
- 3
Request removal at uribl.com
Lookup form → delist request after registering. Cost: free (public zones).
- 4
Verify and watch for a return
Typical turnaround: undocumented. Re-run the live check after that window; a listing that comes back means the source is still active.
- 01Look it upuribl.com
- 02Fix the causebefore you ask
- 03Self-service removaluribl.com
- 04Verifyundocumented
cost: free (public zones)
How long removal takes
Typical turnaround: undocumented. Automatic expiry: undocumented. Cost: free (public zones).
Frequently asked questions
How do I get removed from URIBL?
Lookup form → delist request after registering, at uribl.com, after the cause is fixed. Cost: free (public zones). Typical turnaround: undocumented.
How long does a URIBL listing last?
Automatic expiry: undocumented. Removal turnaround: undocumented. A listing that returns after clearing means the cause is still live.
Does URIBL removal cost anything?
Free (public zones). No third party can remove a domain from URIBL faster than the operator's own process, so paid "express delisting" offers add nothing.
What does URIBL list?
Domain names: Black = spammer-owned domains; Grey = likely spam; Red = young/monitored domains — cold-email domains under 30 days can hit Red. Zones: multi.uribl.com, black.uribl.com, grey.uribl.com, red.uribl.com.
How do I check whether I am on URIBL?
Use the operator's lookup at uribl.com, or the live check on this page, which queries multi.uribl.com directly.
Record checked against the operator's site on ; the whole set was last reviewed on . Cells that say undocumented or not found are gaps in the operator's own material, left as they are.