https://rpc.flashbots.net/fast
Posture score
83
Speed score
67
TLS version
TLS 1.3
Cipher
TLS_AES_128_GCM_SHA256
KEX group
classical
PQ class
Classical only
ALPN
h2
Cert expires in
135d
Session resumed
yes
TLS handshake
174ms
Resumption
92ms
TTFB
825ms
RPC block height
26,143,942
TLS handshake
VersionTLS 1.3
CipherTLS_AES_128_GCM_SHA256
KEX groupclassical
ALPNh2
PQ classClassical only
Handshake174ms
Resumed?yes · 92ms
OCSP stapledno
SCTs presentno
Certificate chain
Subjectrpc.flashbots.net
IssuerAmazon RSA 2048 M04
Key typeRSA-2048
Chain length3
SANsrpc.flashbots.net
Not before2026-08-06
Not after2027-02-19
Days to expiry135d
Chain SHA-25647d5b225969cc424…
Misconfigurations
- OCSP stapling not enabled
no_ocsp_staple
Probes attempted
-
Successful
-
Success rate
-
Median p50
-
Median p95
-
Latest bucket
-
Class
Classical only
Key exchange
-
Cipher
TLS_AES_128_GCM_SHA256
Last seen
2026-10-07T23:57:31.941883348Z
History (30 days)
no history
This URL is fastest right now
no
Fastest p50 latency
825ms
Latest block height
-
Current fastest URL
https://eth.blockrazor.xyzJSON-RPC eth_chainId, which verifies the endpoint is alive and reports the chain ID.
curl -X POST 'https://rpc.flashbots.net/fast' \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'Scan reportschema rpcscan-report · captured 2026-10-10T06:51:07.891Z
SHA-256 of canonical content
computed in your browser
computing…
The hash covers every field above the JSON serialization with sorted keys. Re-running this computation against the downloaded artifact must produce the same hash; that's how RPCScan's future on-chain proofs (rpcscanchain) will let anyone verify a published snapshot wasn't tampered with.