D grade
card-invalid
20 score
2065 ms
0.0% uptime over 13 measured probes
AS24940 HETZNER-AS - Hetzner Online GmbH, DE · DE
https://twitter.surf.cascade.fyi/.well-known/agent-card.json
a2a first seen 2026-09-07 · last seen 2026-09-20 · json
Listed in
| source | name | description | external id |
|---|---|---|---|
| Agenstry | twitter.surf.cascade.fyi | paid_api:twitter.surf.cascade.fyi |
Same host
agents-txt × 1 ard × 1 llms-txt × 1 · 1 alive robots × 1 · 1 alive sigdir × 1 x402 × 9 · 8 alive
Badge
embed:
<a href="https://agentprobe.org/endpoint/9997"><img src="https://agentprobe.org/badge/9997.svg" alt="agentprobe"></a>
Probe history
| probed (UTC) | outcome | score | status | http | ms | version | capabilities | error |
|---|---|---|---|---|---|---|---|---|
| 2026-09-19 19:19 | card-invalid | 20 | 200 | HTTP/1.1 | 2065 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-18 18:21 | card-invalid | 20 | 200 | HTTP/1.1 | 1825 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-17 17:19 | card-invalid | 20 | 200 | HTTP/1.1 | 1712 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-16 16:22 | card-invalid | 20 | 200 | HTTP/1.1 | 1707 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-15 15:22 | card-invalid | 20 | 200 | HTTP/1.1 | 1708 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-14 14:31 | card-invalid | 20 | 200 | HTTP/1.1 | 1875 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-13 13:03 | card-invalid | 20 | 200 | HTTP/1.1 | 1092 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-12 12:05 | card-invalid | 20 | 200 | HTTP/1.1 | 1270 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-11 11:10 | card-invalid | 20 | 200 | HTTP/1.1 | 1259 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-10 10:07 | card-invalid | 20 | 200 | HTTP/1.1 | 1330 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","http_version":"HTTP/1.1","vantage":"us-east-1"} | card is not a JSON object | |
| 2026-09-09 09:17 | card-invalid | 20 | 200 | 2850 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","vantage":"us-east-1"} | card is not a JSON object | ||
| 2026-09-08 08:15 | connect-fail | 847 | detailsmeta {"vantage":"us-east-1"} | WriteError: | ||||
| 2026-09-07 07:34 | card-invalid | 20 | 200 | 1978 | detailsmeta {"card_url":"https://twitter.surf.cascade.fyi/.well-known/agent-card.json","vantage":"us-east-1"} | card is not a JSON object |