agentprobe.org
054 ms2,929 ms2026-09-07T04:58:40+00:00 · http-error · 9 ms2026-09-08T08:19:40+00:00 · card-invalid · 2929 ms2026-09-09T09:21:34+00:00 · connect-fail · 867 ms2026-09-09T10:16:24+00:00 · card-invalid · 592 ms2026-09-10T11:17:40+00:00 · card-invalid · 1036 ms2026-09-11T12:17:08+00:00 · card-invalid · 725 ms2026-09-12T13:10:53+00:00 · card-invalid · 1017 ms2026-09-07 04:582026-09-12 13:10054 ms2,929 ms2026-09-07T04:58:40+00:00 · http-error · 9 ms2026-09-08T08:19:40+00:00 · card-invalid · 2929 ms2026-09-09T09:21:34+00:00 · connect-fail · 867 ms2026-09-09T10:16:24+00:00 · card-invalid · 592 ms2026-09-10T11:17:40+00:00 · card-invalid · 1036 ms2026-09-11T12:17:08+00:00 · card-invalid · 725 ms2026-09-12T13:10:53+00:00 · card-invalid · 1017 ms2026-09-07 04:582026-09-12 13:10
probe history, latency (log) over time, glyph = outcome
D grade
card-invalid
20 score
1017 ms
0.0% uptime over 7 measured probes
AS14618 AMAZON-AES - Amazon.com, Inc., US · US

https://dheeraj2121-letter.hf.space/

ard first seen 2026-09-07 · last seen 2026-09-13 · json

Same host

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

Badge

agentprobe grade D

embed:

<a href="https://agentprobe.org/endpoint/3863397"><img src="https://agentprobe.org/badge/3863397.svg" alt="agentprobe"></a>

Probe history

probed (UTC)outcomescorestatushttpmsversioncapabilitieserror
2026-09-12 13:10card-invalid20 200HTTP/1.11017
details

meta 

{"catalog_url":"https://dheeraj2121-letter.hf.space/.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 12:17card-invalid20 200HTTP/1.1725
details

meta 

{"catalog_url":"https://dheeraj2121-letter.hf.space/.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 11:17card-invalid20 200HTTP/1.11036
details

meta 

{"catalog_url":"https://dheeraj2121-letter.hf.space/.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 10:16card-invalid20 200HTTP/1.1592
details

meta 

{"catalog_url":"https://dheeraj2121-letter.hf.space/.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 09:21connect-fail 867
details

meta 

{"vantage":"us-east-1"}
h2: Invalid input ConnectionInputs.SEND_SETTINGS in state ConnectionState.CLOSED
2026-09-08 08:19card-invalid20 2002929
details

meta 

{"catalog_url":"https://dheeraj2121-letter.hf.space/.well-known/ard.json","paths_found":["ard.json","ai-catalog.json"],"vantage":"us-east-1"}
not a JSON object
2026-09-07 04:58http-error 5039
details
HTTP 503