agentprobe.org
073 ms5,471 ms2026-09-07T11:17:00+00:00 · connect-fail · 1997 ms2026-09-09T11:13:24+00:00 · http-error · 5471 ms2026-09-07 11:172026-09-09 11:13073 ms5,471 ms2026-09-07T11:17:00+00:00 · connect-fail · 1997 ms2026-09-09T11:13:24+00:00 · http-error · 5471 ms2026-09-07 11:172026-09-09 11:13
probe history, latency (log) over time, glyph = outcome
F grade
http-error
— score
5471 ms
0.0% uptime over 2 measured probes
AS400940 RAILWAY - Railway, US · US

https://arbitrum-mpp-transaction-preflight-production.up.railway.app/

robots first seen 2026-09-07 · last seen 2026-09-12 · json

Same host

a2a × 1 agents-txt × 1 ard × 1 llms-txt × 1 sigdir × 1 x402 × 1

Badge

agentprobe grade F

embed:

<a href="https://agentprobe.org/endpoint/288198"><img src="https://agentprobe.org/badge/288198.svg" alt="agentprobe"></a>

Probe history

probed (UTC)outcomescorestatushttpmsversioncapabilitieserror
2026-09-09 11:13http-error 404HTTP/1.15471
details

meta 

{"http_version":"HTTP/1.1","vantage":"us-east-1"}
HTTP 404
2026-09-07 11:17connect-fail 1997
details

meta 

{"vantage":"us-east-1"}
h2: Invalid input ConnectionInputs.SEND_SETTINGS in state ConnectionState.CLOSED