HTTP 412 precondition-failed
Meaning of HTTP 412.
endpoint: https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-412/mcp
registry: io.github.sadri-dridi/http-412
A
recent success 100% (30 probes) ·
MCP handshake OK
· protocol 2025-03-26
TLS valid (53d left) · latency 67.0 ms ·
HTTP 200 · auth open ·
tools 31
manifest 8e91a564a968f4bc
· drift events seen here: 4
Embed this grade
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Recent probes
| time (UTC) | ok | grade | mcp | latency | tls | tools | hash |
|---|---|---|---|---|---|---|---|
| 2026-10-12T04:50:53Z | ✓ | A | ✓ | 67.0 ms | 53d | 31 | 8e91a564a968f4bc |
| 2026-10-11T22:49:48Z | ✓ | A | ✓ | 86.0 ms | 54d | 31 | 8e91a564a968f4bc |
| 2026-10-11T16:49:15Z | ✓ | A | ✓ | 119.0 ms | 54d | 31 | 8e91a564a968f4bc |
| 2026-10-11T10:48:09Z | ✓ | A | ✓ | 82.0 ms | 54d | 31 | 8e91a564a968f4bc |
| 2026-10-11T04:47:03Z | ✓ | A | ✓ | 119.0 ms | 54d | 31 | 8e91a564a968f4bc |
| 2026-10-10T22:45:33Z | ✓ | A | ✓ | 125.0 ms | 55d | 31 | 8e91a564a968f4bc |
| 2026-10-10T16:43:39Z | ✓ | A | ✓ | 84.0 ms | 55d | 31 | 8e91a564a968f4bc |
| 2026-10-10T10:41:46Z | ✓ | A | ✓ | 94.0 ms | 55d | 31 | 8e91a564a968f4bc |
| 2026-10-10T04:40:40Z | ✓ | A | ✓ | 135.0 ms | 55d | 31 | 8e91a564a968f4bc |
| 2026-10-09T22:38:35Z | ✓ | A | ✓ | 87.0 ms | 56d | 31 | 8e91a564a968f4bc |
| 2026-10-09T16:38:00Z | ✓ | A | ✓ | 62.0 ms | 56d | 31 | 8e91a564a968f4bc |
| 2026-10-09T10:37:23Z | ✓ | A | ✓ | 73.0 ms | 56d | 31 | 8e91a564a968f4bc |
| 2026-10-09T04:37:16Z | ✓ | A | ✓ | 121.0 ms | 56d | 31 | 8e91a564a968f4bc |
| 2026-10-08T22:34:07Z | ✓ | A | ✓ | 67.0 ms | 57d | 31 | 8e91a564a968f4bc |
| 2026-10-08T16:33:38Z | ✓ | A | ✓ | 86.0 ms | 57d | 31 | 8e91a564a968f4bc |
| 2026-10-08T10:32:25Z | ✓ | A | ✓ | 118.0 ms | 57d | 31 | 8e91a564a968f4bc |
| 2026-10-08T04:31:42Z | ✓ | A | ✓ | 97.0 ms | 57d | 31 | 8e91a564a968f4bc |
| 2026-10-07T22:30:58Z | ✓ | A | ✓ | 101.0 ms | 58d | 31 | 8e91a564a968f4bc |
| 2026-10-07T16:30:43Z | ✓ | A | ✓ | 155.0 ms | 58d | 31 | 8e91a564a968f4bc |
| 2026-10-07T10:28:29Z | ✓ | A | ✓ | 55.0 ms | 58d | 31 | 8e91a564a968f4bc |
| 2026-10-07T04:27:24Z | ✓ | A | ✓ | 68.0 ms | 58d | 31 | 8e91a564a968f4bc |
| 2026-10-06T22:26:17Z | ✓ | A | ✓ | 63.0 ms | 59d | 31 | 8e91a564a968f4bc |
| 2026-10-06T16:25:45Z | ✓ | A | ✓ | 61.0 ms | 59d | 31 | 8e91a564a968f4bc |
| 2026-10-06T10:24:03Z | ✓ | A | ✓ | 159.0 ms | 59d | 31 | 8e91a564a968f4bc |
| 2026-10-06T04:23:25Z | ✓ | A | ✓ | 132.0 ms | 59d | 31 | 8e91a564a968f4bc |
| 2026-10-05T22:21:58Z | ✓ | A | ✓ | 61.0 ms | 60d | 31 | 8e91a564a968f4bc |
| 2026-10-05T16:21:34Z | ✓ | A | ✓ | 45.0 ms | 60d | 31 | 8e91a564a968f4bc |
| 2026-10-05T10:19:43Z | ✓ | A | ✓ | 61.0 ms | 60d | 31 | 8e91a564a968f4bc |
| 2026-10-05T04:18:39Z | ✓ | A | ✓ | 56.0 ms | 60d | 31 | 8e91a564a968f4bc |
| 2026-10-04T22:17:35Z | ✓ | A | ✓ | 76.0 ms | 61d | 31 | 8e91a564a968f4bc |