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HTTP Latency Monitor

Verify SLA compliance with bulk TTFB and response time checks across hundreds of endpoints in a single run. Slow response times directly impact user experience, search rankings, and uptime commitments — yet most monitoring tools only check one URL at a time. Measure latency at scale with structured, API-ready results.

Features

• Response time measurement — captures total HTTP request latency in milliseconds for each URL
• Bulk monitoring — check hundreds of endpoints concurrently in a single run
• HTTP status tracking — reports the status code returned by each endpoint
• Flexible HTTP method — use HEAD for lightweight checks or GET for full-response timing
• Redirect detection — captures the final URL after any redirects
• Structured output — JSON results ready for dashboards, alerts, or SLA reports

Input

Input Example

{
"urls":[
"https://example.com",
"https://api.example.com/health",
"https://cdn.example.com/assets/main.js"
],
"method":"HEAD",
"concurrency":20
}

Output

Each URL produces one dataset record with the measured latency, HTTP status, and any errors encountered.

Key output fields:

• inputUrl (string) — the URL as submitted
• finalUrl (string) — the URL after any redirects
• status (number) — HTTP status code
• latencyMs (number) — total response time in milliseconds
• method (string) — HTTP method used for the check
• error (string | null) — error message if the request failed
• checkedAt (string) — ISO 8601 timestamp

Output Example

{
"inputUrl":"https://example.com",
"finalUrl":"https://example.com/",
"status":200,
"latencyMs":142,
"method":"HEAD",
"error":null,
"checkedAt":"2026-03-09T12:00:00.000Z"
}

Pricing

Pay only for URLs successfully checked. Respects your per-run spending limit.

Use Cases

• SLA verification — measure response times across all client endpoints to confirm uptime and latency commitments
• CDN performance audits — compare response times across CDN edge locations and origin servers
• Deployment validation — check response times before and after deployments to catch performance regressions
• Competitive benchmarking — measure competitor site speeds alongside your own for executive reporting
• Scheduled health checks — run periodic latency sweeps and feed results into alerting pipelines

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