Check details and timing

Overview

Each check includes detailed timing information that helps you understand where time is spent during the request. This is especially useful for diagnosing slow response times.

Timing breakdown

Hover over the response time in the check table to see the full timing breakdown:

• DNS lookup: Time to resolve the domain name to an IP address
• TCP connection: Time to establish the TCP connection
• TLS handshake: Time to complete SSL/TLS negotiation (HTTPS only)
• Wait time (TTFB): Time waiting for the first byte from the server
• Download: Time to download the response body
• Total time: Sum of all timing components

HTTP status codes

For HTTP monitors, each check records the status code. A successful check returns a 2xx status code (200-299). Other codes indicate issues:

• 3xx: Redirect responses (may indicate configuration issues)
• 4xx: Client errors (authentication, not found, etc.)
• 5xx: Server errors (internal errors, gateway issues)

Response time charts

Monitor detail pages display response time trends over time. Use these charts to identify performance patterns, detect gradual degradation, or verify improvements after optimization.