Keyword stuffing stopped working 30 years ago. The maths explains why.
BM25, the lexical ranking algorithm behind Elasticsearch, Solr and (in some form) Google's term-matching signals, has a saturation function built in. With a typical k₁ of 1.2:
How to get Videos indexed and featured in search?
Technical requirements for video indexing, from page layout signals to byte range support and complete structured data markup.
