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Slow & Large Pages

Reports page-load performance gathered during scans, measured without browser cache from a cloud crawler.

Modes​

A toggle switches the page between Slowest Pages and Largest Pages.

  • Slowest Pages: a donut chart buckets pages by load time (under 1s, 1–3s, 3–5s, over 5s) or by time to first byte (under 200ms, 200–500ms, 500ms–1s, over 1s) — toggle between the two.
  • Largest Pages: a donut chart buckets pages by size, on either a raw (uncompressed) or resource (transferred) bytes basis — toggle between the two.

Two callout widgets show the single slowest page load and the single largest page, each with its URL and date.

Trend and detail​

Below the summary, a trend chart and a "Top 20" score table show per-URL trends over time, bucketable by day, week, or month with a date-range picker. Clicking a cell opens a detail dialog breaking that page's load down by resource type — document, image, script, stylesheet, font, media, XHR, other — with size and time per type.

If no performance data exists yet, the page prompts to run a scan.