FU10 crawls are exclusive in that they usually target a specific subset of the index — e.g., high-frequency updated content, e-commerce product feeds, or news sections — rather than a full site crawl.

He clicked.

software used to track keyword rankings or scrape data from the Yandex search engine Functionality

Crawling Night refers to a hypothetical concept where web crawlers, also known as spiders or bots, operate under the cover of darkness, indexing and gathering data from websites at an unprecedented rate. This phenomenon is often associated with search engines, such as Yandex, which utilize crawlers to scan and catalog the vast expanse of the internet.

Based on the phrasing, this appears to be a description of a search engine result page (SERP) snapshot or a technical log related to web crawling