F grade
http-error
— score
5737 ms
0.0% uptime over 1 measured probe
AS400940 RAILWAY - Railway, US · US
https://arbitrum-mpp-transaction-preflight-production.up.railway.app/
sigdir first seen 2026-09-07 · last seen 2026-09-12 · json
Same host
a2a × 1 agents-txt × 1 ard × 1 llms-txt × 1 robots × 1 x402 × 1
Badge
embed:
<a href="https://agentprobe.org/endpoint/288199"><img src="https://agentprobe.org/badge/288199.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | http | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|---|
| 2026-09-09 11:37 | http-error | 404 | HTTP/1.1 | 5737 | detailsmeta {"http_version":"HTTP/1.1","vantage":"us-east-1"} | HTTP 404 | ||
| 2026-09-07 11:29 | connect-fail | detailsmeta {"inferred_from":"robots","vantage":"us-east-1"} | inferred from robots: h2: Invalid input ConnectionInputs.SEND_SETTINGS in state ConnectionState.CLOSED |