ListSignal
B2B sales intelligence: tech stack, Shopify apps, revenue, hiring and contacts for 16M+ domains
endpoint: https://listsignal.com/mcp
registry: com.listsignal/listsignal
D
recent success 0% (30 probes) ·
MCP handshake FAILED
· protocol —
TLS valid (57d left) · latency 292.0 ms ·
HTTP 401 · auth required ·
tools —
manifest —
· drift events seen here: 0
Embed this grade
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Recent probes
| time (UTC) | ok | grade | mcp | latency | tls | tools | hash |
|---|---|---|---|---|---|---|---|
| 2026-10-13T12:44:12Z | ✗ | D | ✗ | 292.0 ms | 57d | — | — |
| 2026-10-13T06:43:02Z | ✗ | D | ✗ | 189.0 ms | 57d | — | — |
| 2026-10-13T00:42:28Z | ✗ | D | ✗ | 127.0 ms | 57d | — | — |
| 2026-10-12T18:40:40Z | ✗ | D | ✗ | 168.0 ms | 58d | — | — |
| 2026-10-12T12:39:34Z | ✗ | D | ✗ | 179.0 ms | 58d | — | — |
| 2026-10-12T06:38:39Z | ✗ | D | ✗ | 174.0 ms | 58d | — | — |
| 2026-10-12T00:38:13Z | ✗ | D | ✗ | 177.0 ms | 58d | — | — |
| 2026-10-11T18:36:37Z | ✗ | D | ✗ | 164.0 ms | 59d | — | — |
| 2026-10-11T12:35:26Z | ✗ | D | ✗ | 213.0 ms | 59d | — | — |
| 2026-10-11T06:34:46Z | ✗ | D | ✗ | 112.0 ms | 59d | — | — |
| 2026-10-11T00:33:06Z | ✗ | D | ✗ | 163.0 ms | 59d | — | — |
| 2026-10-10T18:31:46Z | ✗ | D | ✗ | 180.0 ms | 60d | — | — |
| 2026-10-10T12:30:53Z | ✗ | D | ✗ | 378.0 ms | 60d | — | — |
| 2026-10-10T06:30:50Z | ✗ | D | ✗ | 177.0 ms | 60d | — | — |
| 2026-10-10T00:30:29Z | ✗ | D | ✗ | 286.0 ms | 60d | — | — |
| 2026-10-09T18:30:09Z | ✗ | D | ✗ | 226.0 ms | 61d | — | — |
| 2026-10-09T12:29:39Z | ✗ | D | ✗ | 269.0 ms | 61d | — | — |
| 2026-10-09T06:29:25Z | ✗ | D | ✗ | 239.0 ms | 61d | — | — |
| 2026-10-09T00:29:03Z | ✗ | D | ✗ | 245.0 ms | 61d | — | — |
| 2026-10-08T18:28:16Z | ✗ | D | ✗ | 112.0 ms | 62d | — | — |
| 2026-10-08T12:27:22Z | ✗ | D | ✗ | 131.0 ms | 62d | — | — |
| 2026-10-08T06:26:33Z | ✗ | D | ✗ | 130.0 ms | 62d | — | — |
| 2026-10-08T00:25:59Z | ✗ | D | ✗ | 72.0 ms | 62d | — | — |
| 2026-10-07T18:25:28Z | ✗ | D | ✗ | 155.0 ms | 63d | — | — |
| 2026-10-07T12:23:38Z | ✗ | D | ✗ | 58.0 ms | 63d | — | — |
| 2026-10-07T06:23:33Z | ✗ | D | ✗ | 156.0 ms | 63d | — | — |
| 2026-10-07T00:22:50Z | ✗ | D | ✗ | 158.0 ms | 63d | — | — |
| 2026-10-06T18:22:10Z | ✗ | D | ✗ | 169.0 ms | 64d | — | — |
| 2026-10-06T12:21:29Z | ✗ | D | ✗ | 101.0 ms | 64d | — | — |
| 2026-10-06T06:20:50Z | ✗ | D | ✗ | 168.0 ms | 64d | — | — |