agentprobe.org
065 ms4,340 ms2026-09-07T06:45:53+00:00 · card-invalid · 4340 ms2026-09-07T07:40:31+00:00 · connect-fail · 1399 ms2026-09-08T08:33:30+00:00 · connect-fail · 3487 ms2026-09-09T09:35:26+00:00 · connect-fail · 1252 ms2026-09-09T10:16:22+00:00 · card-invalid · 1468 ms2026-09-10T11:16:13+00:00 · card-invalid · 2000 ms2026-09-11T12:15:40+00:00 · card-invalid · 2225 ms2026-09-12T13:09:26+00:00 · card-invalid · 2301 ms2026-09-13T14:14:25+00:00 · card-invalid · 1989 ms2026-09-07 06:452026-09-13 14:14065 ms4,340 ms2026-09-07T06:45:53+00:00 · card-invalid · 4340 ms2026-09-07T07:40:31+00:00 · connect-fail · 1399 ms2026-09-08T08:33:30+00:00 · connect-fail · 3487 ms2026-09-09T09:35:26+00:00 · connect-fail · 1252 ms2026-09-09T10:16:22+00:00 · card-invalid · 1468 ms2026-09-10T11:16:13+00:00 · card-invalid · 2000 ms2026-09-11T12:15:40+00:00 · card-invalid · 2225 ms2026-09-12T13:09:26+00:00 · card-invalid · 2301 ms2026-09-13T14:14:25+00:00 · card-invalid · 1989 ms2026-09-07 06:452026-09-13 14:14
probe history, latency (log) over time, glyph = outcome
D grade
card-invalid
20 score
1989 ms
0.0% uptime over 9 measured probes
AS400940 RAILWAY - Railway, US · US

https://app.fieldstub.com/

ard first seen 2026-09-07 · last seen 2026-09-14 · json

Same host

agents-txt × 1 llms-txt × 1 mcp × 1 · 1 alive robots × 1 · 1 alive sigdir × 1

Badge

agentprobe grade D

embed:

<a href="https://agentprobe.org/endpoint/3859951"><img src="https://agentprobe.org/badge/3859951.svg" alt="agentprobe"></a>

Probe history

probed (UTC)outcomescorestatushttpmsversioncapabilitieserror
2026-09-13 14:14card-invalid20 200HTTP/1.11989
details

meta 

{"catalog_url":"https://app.fieldstub.com/login","paths_found":["ard.json","ai-catalog.json"],"http_version":"HTTP/1.1","vantage":"us-east-1"}
not a JSON object
2026-09-12 13:09card-invalid20 200HTTP/1.12301
details

meta 

{"catalog_url":"https://app.fieldstub.com/login","paths_found":["ard.json","ai-catalog.json"],"http_version":"HTTP/1.1","vantage":"us-east-1"}
not a JSON object
2026-09-11 12:15card-invalid20 200HTTP/1.12225
details

meta 

{"catalog_url":"https://app.fieldstub.com/login","paths_found":["ard.json","ai-catalog.json"],"http_version":"HTTP/1.1","vantage":"us-east-1"}
not a JSON object
2026-09-10 11:16card-invalid20 200HTTP/1.12000
details

meta 

{"catalog_url":"https://app.fieldstub.com/login","paths_found":["ard.json","ai-catalog.json"],"http_version":"HTTP/1.1","vantage":"us-east-1"}
not a JSON object
2026-09-09 10:16card-invalid20 200HTTP/1.11468
details

meta 

{"catalog_url":"https://app.fieldstub.com/login","paths_found":["ard.json","ai-catalog.json"],"http_version":"HTTP/1.1","vantage":"us-east-1"}
not a JSON object
2026-09-09 09:35connect-fail 1252
details

meta 

{"vantage":"us-east-1"}
WriteError:
2026-09-08 08:33connect-fail 3487
details

meta 

{"vantage":"us-east-1"}
WriteError:
2026-09-07 07:40connect-fail 1399
details

meta 

{"vantage":"us-east-1"}
WriteError:
2026-09-07 06:45card-invalid20 2004340
details

meta 

{"catalog_url":"https://app.fieldstub.com/login","paths_found":["ard.json","ai-catalog.json"]}
not a JSON object