https://api.zan.top/opt-mainnet
Posture score
78
Speed score
23
TLS version
TLS 1.2
Cipher
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
KEX group
classical
PQ class
Classical only
ALPN
h2
Cert expires in
90d
Session resumed
no
TLS handshake
799ms
Resumption
763ms
TTFB
3.10s
RPC block height
157,995,738
TLS handshake
VersionTLS 1.2
CipherTLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
KEX groupclassical
ALPNh2
PQ classClassical only
Handshake799ms
Resumed?no
OCSP stapledno
SCTs presentno
Certificate chain
Subject*.zan.top
IssuerAliyun RSA TLS DV G1
Key typeRSA-2048
Chain length3
SANs*.zan.top, zan.top
Not before2026-06-23
Not after2027-01-07
Days to expiry90d
Chain SHA-256a0545b5a2e5ea2a8…
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_ECDHE_RSA_WITH_AES_128_GCM_SHA256
Last seen
2026-10-09T23:57:31.959250131Z
History (30 days)
no history
This URL is fastest right now
no
Fastest p50 latency
1.26s
Latest block height
-
Current fastest URL
https://gateway.tenderly.co/public/optimismJSON-RPC eth_chainId, which verifies the endpoint is alive and reports the chain ID.
curl -X POST 'https://api.zan.top/opt-mainnet' \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'Scan reportschema rpcscan-report · captured 2026-10-10T06:54:50.837Z
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.