DNS & EMAIL
DNS Blocklist Check
See whether a public IPv4 address appears on the blocklists returned by the RIPEstat service.
39DExternal testRuns from the toolbox server
RUN TEST
DNS Blocklist Check
HOW IT WORKS
About the DNS Blocklist Check
DNS blocklists publish reputation decisions in DNS zones. RIPEstat aggregates checks and may return cached, pending or completed results depending on processing state.
How to use this result
- Run the test from this server.Use a public hostname, address, prefix or ASN in the format requested above.
- Compare with another observation point.Run a local command or use a second provider to identify location-specific behaviour.
- Correlate related evidence.Use the related tools below to compare DNS, routes, ports, TLS and application responses.
- Keep the time and context.Routing, DNS caches and reputation data change, so record when the result was collected.
Common interpretation issues
- A listing is not automatically proof of current abuse.
- Removal procedures differ between list operators.
- Mail delivery also depends on content, authentication, domain reputation and receiver policy.
NEED HELP INTERPRETING THE RESULT?
39D supports business networks, cyber security and managed IT.
For ongoing support or a larger infrastructure project, speak to the 39D team.
Frequently asked questions
Can this remove a listing?
No. Follow the instructions of the specific blocklist operator.
Why does the result change?
Reputation data and list membership are dynamic.