§ bgp

bgp.

Layer-3 introspection. Given an IP or AS number, fetch what RIPE's Routing Information Service has on it: origin AS, RPKI validation status, sample AS-paths from public BGP collectors, and the prefix list the AS announces.

input

an IPv4/IPv6 address (1.1.1.1, 2606:4700::) or an AS number (13335 or AS13335). IPs are first resolved to their covering prefix via RIPE's network-info; ASes skip that step.

rpki

valid = a published ROA authorizes this AS to originate this prefix. invalid = ROAs exist but none match (often a sign of route hijacking or misconfiguration). unknown = no ROA covers the prefix.

as_paths

each line is one BGP collector's view of how packets reach the origin AS, leftmost peer is the collector's neighbor. multiple distinct paths = the AS is multi-homed or anycast-announced.

share

the input is reflected in the URL after lookup. the result page is a permalink to the same query.

upstream: stat.ripe.net (free public API).