Watch & Diff: liveness and freshness headers
https://watch-diff.agent-utils.workers.dev/v1/headers?url=https%3A%2F%2Fexample.com%2FOverview
Is this URL alive and did it change? Status, redirects, ETag, Last-Modified, cache headers and response time without downloading the body.
Protocol
x402
Price
$0.0050
Payment Asset
USDC
Payment Network
base
Category
monitoring
Provider
Agent Utils
Source
self-registered
Indexed
2026-09-06 19:07:00
Health
Status
healthy
Latency (p50)
394ms
Uptime (30d)
100.0%
Reliability Score
95/100
Last Checked
2026-09-20 12:18:05
Last Healthy
2026-09-20 12:18:05
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-09-20 12:18:05 | healthy | 402 | 328ms | |
| 2026-09-20 03:39:33 | healthy | 402 | 48ms | |
| 2026-09-19 19:09:44 | healthy | 402 | 377ms | |
| 2026-09-19 09:41:55 | healthy | 402 | 394ms | |
| 2026-09-18 20:28:30 | healthy | 402 | 513ms | |
| 2026-09-18 14:10:38 | healthy | 402 | 399ms | |
| 2026-09-18 06:16:32 | healthy | 402 | 360ms | |
| 2026-09-17 20:48:54 | healthy | 402 | 546ms |