Crawl Coverage by Section

A site-wide crawl number hides the interesting part. The useful question is which sections get requested repeatedly and which have never been fetched at all.

Measures
Share of published URLs in each section that received at least one classified crawler request in the period, and the revisit rate per section.
Data Source
Raw server request logs joined against the published URL set from the sitemap.
Indicates
How a crawler has prioritized the property, which is a rough read on how it has classified the sections.
What Moves It
Internal link structure, whether a section is reachable in few steps from the home page, sitemap inclusion, and whether the section is distinguishable from its neighbours.
Does Not Prove
That the fetched sections rank better, or that the unfetched ones are worse. It shows attention, not judgement.
Status
Measured. Needs a published URL inventory to join against, which the sitemap provides.

The most common finding from this signal is uncomfortable and cheap to fix: a section that is linked once, deep in a footer, gets crawled once. Structure is not decoration, and this is the signal that shows it plainly.