What is an algorithm in SEO?

Publication date : 19 March 2021 • Updated 6 December 2021.
An algorithm refers to the set of automated operations performed by search engines (Google, Bing, Baïdu, Yandex, etc.) to determine a relevant ranking of information.
Based on factors specific to search engines, algorithms evaluate the quality of a web page and position it in their results pages.
Algorithms are subject to numerous changes every year. These updates are mostly minor, but some of them can significantly affect the ranking of websites in the search results pages (SERP for Search Engine Result Page).