What are algorithms in SEO?
Algorithm ranking systems are vital to help search engines such as Google help sort through billions of webpages and their information. Algorithms helps Google understand key factors such as relevance and quality of the content based on your search query in a fraction of a second.
The ranking system behind a search engine is engineered from a whole series of algorithms. As well as relevance and quality, a ranking system also takes into account the keywords of your query, the adjoining words and then meaning of your query, usability of the page, page speed, device of the user, authority of the source and the location of user. This helps search engines provide more targeted results based on the initial search query. The search results are continually monitored by Search Quality Raters around the world to help Google improve their service to the user.
Learn more about how algorithms work at Google