Navigation Latency Audit

Analyze the real-world navigation speed of your website and discover how Speculative Loading can make it instant.

Why Measure Navigation Latency?

Beyond Core Web Vitals

Standard tools measure load (LCP), but they often miss the delay between click and fetch. This audit specifically measures the Interaction to Next Paint (INP) gap caused by network latency on mobile networks.

The Speculation Rules API

This tool is the industry's first dedicated scanner for the Speculation Rules API. We verify if your site is correctly implementing browser-native prerendering or prefetching (via instant.page or Smart Prefetch) to eliminate network latency.

Mobile Performance

With 4G RTT averaging 150ms, mobile users face significant delays. Our audit simulates these real-world conditions to show you the "hidden" latency that standard desktop speed tests miss.