This is a list of most-visited websites worldwide as of October 2025, along with their change in ranking compared to the previous month.

Keyword research The objective of keyword research is to generate, with good precision and recall, a large number of terms that are highly relevant yet non-obvious to the given input …

Search engine optimization (SEO) is the process of improving the quality and quantity of website traffic to a website or a web page from search engines. [1][2] SEO targets unpaid search traffic …

Search engine marketing uses at least five methods and metrics to optimize websites. [16] Keyword research and analysis involve three "steps": ensuring the site can be indexed in the …

From the point of view of a given web resource (referent), a backlink is a regular hyperlink on another web resource (the referrer) that points to the referent. [1] A web resource may be (for …

Keyword advertising is a form of online advertising in which an advertiser pays to have an advertisement appear in the results listing when a person uses a particular phrase to search …

PageRank is a link analysis algorithm and it assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" …

In Internet marketing, search advertising is a method of placing online advertisements on web pages that show results from search engine queries. Through the same search-engine …

List of search engines Search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market …

A web query or web search query is a query that a user enters into a web search engine to satisfy their information needs. Web search queries are distinctive in that they are often plain text and …