D grade
card-invalid
20 score
973 ms
0.0% uptime over 8 measured probes
AS13335 CLOUDFLARENET - Cloudflare, Inc., US · US
https://alpaca.markets/
ard first seen 2026-09-07 · last seen 2026-09-13 · json
Same host
agents-txt × 1 llms-txt × 1 · 1 alive mcp × 1 robots × 1 · 1 alive sigdir × 1
Badge
embed:
<a href="https://agentprobe.org/endpoint/3858085"><img src="https://agentprobe.org/badge/3858085.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | http | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|---|
| 2026-09-13 14:11 | card-invalid | 20 | 200 | HTTP/1.1 | 973 | detailsmeta {"catalog_url":"https://alpaca.markets/.well-known/ard.json","paths_found":["ard.json","ai-catalog.json"],"http_version":"HTTP/1.1","vantage":"us-east-1"} | not a JSON object | |
| 2026-09-12 13:07 | card-invalid | 20 | 200 | HTTP/1.1 | 968 | detailsmeta {"catalog_url":"https://alpaca.markets/.well-known/ard.json","paths_found":["ard.json","ai-catalog.json"],"http_version":"HTTP/1.1","vantage":"us-east-1"} | not a JSON object | |
| 2026-09-11 12:13 | card-invalid | 20 | 200 | HTTP/1.1 | 1001 | detailsmeta {"catalog_url":"https://alpaca.markets/.well-known/ard.json","paths_found":["ard.json","ai-catalog.json"],"http_version":"HTTP/1.1","vantage":"us-east-1"} | not a JSON object | |
| 2026-09-10 11:13 | card-invalid | 20 | 200 | HTTP/1.1 | 1122 | detailsmeta {"catalog_url":"https://alpaca.markets/.well-known/ard.json","paths_found":["ard.json","ai-catalog.json"],"http_version":"HTTP/1.1","vantage":"us-east-1"} | not a JSON object | |
| 2026-09-09 10:09 | card-invalid | 20 | 200 | 1293 | detailsmeta {"catalog_url":"https://alpaca.markets/.well-known/ard.json","paths_found":["ard.json","ai-catalog.json"],"vantage":"us-east-1"} | not a JSON object | ||
| 2026-09-09 09:23 | connect-fail | 1766 | detailsmeta {"vantage":"us-east-1"} | h2: Invalid input ConnectionInputs.SEND_SETTINGS in state ConnectionState.CLOSED | ||||
| 2026-09-08 08:21 | card-invalid | 20 | 200 | 2487 | detailsmeta {"catalog_url":"https://alpaca.markets/.well-known/ard.json","paths_found":["ard.json","ai-catalog.json"],"vantage":"us-east-1"} | not a JSON object | ||
| 2026-09-07 05:08 | card-invalid | 20 | 200 | 52 | detailsmeta {"catalog_url":"https://alpaca.markets/.well-known/ard.json","paths_found":["ard.json","ai-catalog.json"]} | not a JSON object |