Indented results
A layout where a second result from the same site appears indented under the first, indicating Google judged both relevant to the query.
SERP FeaturesDomain crowdingHost crowding
Site diversity system
Google's system limiting how many results from the same site appear for a query, typically to two, so results are not dominated by one domain.
In full
Introduced in 2019, the system treats subdomains as part of the parent site in most cases, and allows more than two results when Google judges additional results from that site to be especially relevant. It is applied per query rather than universally, which is why some queries still show three or more results from one domain. The practical consequence is that a site cannot solve a competitive SERP by publishing more pages on the same topic.
Example
A publisher with five strong articles on a topic still sees only two of them ranking for the head term.
Related terms
SERP
The page a search engine returns for a query, combining organic results with ads, rich results, AI-generated answers and vertical modules.
Keyword cannibalisation
Multiple pages on a site competing for the same query, so search engines alternate between them and none establishes a strong position.
Content pruning
Systematically removing, merging or noindexing low-value pages so a site's indexed footprint reflects only content worth ranking.
Site reputation abuse
Publishing third-party content on a host site to exploit that site's ranking signals; a Google spam policy violation regardless of…