Latency Test
Performance & Uptime Monitoring for APIs and Websites·latencytest.me
Latency Test measures HTTP latency for APIs and websites, breaking each request into DNS lookup, TCP connection, TLS handshake, TTFB, and content transfer phases. It offers 24/7 uptime monitoring with alerts sent to Email, Slack, PagerDuty, or OpsGenie, plus shareable public performance reports covering 24h, 7d, 30d, or 90d windows. Monitoring data can be accessed programmatically via a REST API or queried through an MCP server from AI tools like Claude and Cursor.
What it's for
Features 14
- 24/7 uptime monitoring with alerts
- 6-month historical data retention
- Average latency analytics across 24h/30d/90d windows
- Configurable redirect-following behavior
- Custom HTTP requests with all methods, headers, and request body
- MCP server for querying monitoring data from AI tools
- Multi-channel alert integrations (Email, Slack, PagerDuty, OpsGenie)
- Per-phase latency breakdown (DNS, TCP, TLS, TTFB, content transfer)
- Project-based endpoint configuration and dashboard
- REST API for programmatic access to metrics
- Shareable public performance reports (24h/7d/30d/90d)
- Status code distribution analytics
- Support for GET, POST, PUT, PATCH, DELETE HTTP methods
- Threshold-based alerts with auto-resolution
At a glance
Integrations
Pricing
The one-off latency test on the homepage is free to use without an account. Paid tiers are billed either as $79/year (with a 7-day risk-free trial) or as a one-time $225 lifetime payment; both appear to include the same monitoring quota (15 endpoints/URLs, up to 788,400 requests/month, 6 month history).
Includes a 7-day risk-free trial.
15 endpoints/URLs, up to 788,400 requests/month, 6 month data history
One-time lifetime purchase of $225 instead of a recurring subscription.
One-time payment; same monitoring limits as the annual plan (15 endpoints/URLs, up to 788,400 requests/month, 6 month history)