https://zksync.api.onfinality.io/public
Posture score
83
Speed score
98
TLS version
TLS 1.3
Cipher
TLS_AES_128_GCM_SHA256
KEX group
classical
PQ class
Classical only
ALPN
h2
Cert expires in
54d
Session resumed
no
TLS handshake
29ms
Resumption
30ms
TTFB
302ms
RPC block height
72,378,523
TLS handshake
VersionTLS 1.3
CipherTLS_AES_128_GCM_SHA256
KEX groupclassical
ALPNh2
PQ classClassical only
Handshake29ms
Resumed?no
OCSP stapledno
SCTs presentno
Certificate chain
Subjectzksync.api.onfinality.io
IssuerYR2
Key typeRSA-2048
Chain length3
SANszksync.api.onfinality.io
Not before2026-09-02
Not after2026-12-01
Days to expiry54d
Chain SHA-2563075d2f58a46f0da…
Misconfigurations
- OCSP stapling not enabled
no_ocsp_staple
URL
https://zksync.api.onfinality.io/public
Chain
Chain ID
VM
Platform type
Sibling RPCs
Probes attempted
-
Successful
-
Success rate
-
Median p50
-
Median p95
-
Latest bucket
-
Class
Classical only
Key exchange
-
Cipher
TLS_AES_128_GCM_SHA256
Last seen
2026-10-07T23:57:47.436063276Z
History (30 days)
no history
This URL is fastest right now
no
Fastest p50 latency
189ms
Latest block height
-
Current fastest URL
https://zksync-era.rpc.sentio.xyzJSON-RPC eth_chainId, which verifies the endpoint is alive and reports the chain ID.
curl -X POST 'https://zksync.api.onfinality.io/public' \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'Scan reportschema rpcscan-report · captured 2026-10-10T07:39:17.388Z
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.