OPEN LINK ↗
// 57d agoINFRASTRUCTURE
Cloudflare tests ISP BGP filtering
Is BGP safe yet? is a Cloudflare site that checks whether your ISP filters invalid BGP routes using RPKI origin validation. The test works by attempting to load content from an intentionally invalid route: if it succeeds, your network accepted a route it should have rejected.
// ANALYSIS
Hot take: this is less a product than a public accountability demo, and that’s exactly why it works.
- –It makes a normally invisible infrastructure risk legible to non-network folks.
- –The signal is practical, not theoretical: a pass/fail test tied to real route validation behavior.
- –It doubles as advocacy, nudging ISPs toward RPKI and MANRS without requiring users to understand BGP deeply.
- –The UX is intentionally simple, but the underlying problem is still very much not solved.
// TAGS
bgprpkirouting-securityispinternet-infrastructurecloudflarenetwork-security
DISCOVERED
57d ago
2026-04-01
PUBLISHED
57d ago
2026-04-01
RELEVANCE
8/ 10
AUTHOR
janandonly