Googlebot fetches with finite patience: how many URLs it will crawl per visit depends on server speed and how much the site is judged worth fetching. Small sites never touch the limit — a few hundred pages all get seen. It becomes a constraint on sites with thousands of URLs, where crawl capacity spent on parameter URLs, faceted pages, tag archives and redirect chains is capacity not spent on pages that matter.
The maintenance is housekeeping: let robots.txt and canonicals keep junk URLs out, keep internal links pointing at final destinations instead of redirecting hops, keep the sitemap clean of 404s, and keep the server fast — crawl rate adapts to a site that answers quickly.
Related terms
robots.txt
A plain-text file at the site root telling crawlers what they may fetch — an instruction to machines, not a lock on a door.
Indexing
A search engine adding a page to its searchable database — crawling fetches it, indexing makes it findable; unindexed is invisible.
XML sitemap
A machine-readable list of every URL worth indexing — last-modified dates included — so crawlers find all of it, fast.
Internal linking
Links between your own pages — how authority flows to the pages that need it and how crawlers and readers find depth.
The bench this belongs to
Web performanceA rebuild that loads on a phone on mobile data, in the country your customers are actually in. Core Web Vitals are the measurement, revenue is the point.
