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Web Probe HTTP Timing
x402
Web Probe HTTP Timing is a paid API for AI agents from web-probe.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).
Measures detailed HTTP timing metrics (DNS, connect, TLS, TTFB, total) for a GET request to a given URL, plus status, content type, and response size.
Price / call$0.02
Success—
StatusUnknown
How this service works
Time one GET to a URL: DNS, connect, TLS, first byte and total ms, plus status, content type and size read.
Output
Returns a structured object containing timing measurements in milliseconds (dnsMs, connectMs, tlsMs, ttfbMs, totalMs), HTTP status code, content type, bytes read, HTTP version, server header, a human-readable summary, a verdict on whether the endpoint is healthy or degraded, reasons for any degradation, and metadata such as asOf timestamp and disclaimer.
Example use cases
API endpoint latency check
“Run a timing probe on https://api.myservice.com/health and break down DNS, connect, TLS, and TTFB for me — I want to know if it's slow or degraded.”
Pre-launch website performance baseline
“Before we go live, probe https://www.mynewsite.com and give me the full HTTP timing breakdown — DNS, connect, TLS, first byte, and total time — along with the status code and content type.”
Third-party dependency monitoring
“Check how fast https://cdn.thirdparty.com/script.js is responding right now — I need DNS time, TLS time, time to first byte, and total milliseconds so I know if it's affecting our page load.”
Technical details
Endpoint
GEThttps://web-probe.x402tookit.com/http-timing?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need granular HTTP timing breakdown (DNS, connect, TLS, TTFB, total) for a single URL rather than just a reachability check. Prefer it over redirect-tracing or metadata-extraction endpoints when performance measurement is the goal. Ideal for diagnosing slow APIs, monitoring CDN performance, baselining web endpoints before/after deployments, or detecting degraded third-party services.
Side effects
- URL is unreachable or times out — returns null timing fields and an error verdict
- Invalid or non-HTTPS URL provided — schema requires a full https URL, request may be rejected
- DNS resolution failure — dnsMs may be null with a failure reason in the reasons array
- TLS handshake failure for HTTPS endpoints — tlsMs null, verdict indicates TLS error
- Non-GET-accessible resource (e.g. requires auth) — returns HTTP 401/403 status with no body timing
- Network-level block from the probe host — returns null fields or incomplete timing data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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