Minimum Search Term Length
Ignores searches shorter than a few characters, which return huge, useless result lists and put extra load on the database.
Snippet Library
Search snippets for WordPress
Snippets that improve WordPress search: search custom fields and post types, exclude pages, redirect single results and highlight matching words. For content-heavy sites where visitors need to find things quickly.
Rate-Limit Site Searches
Limits how many searches one visitor can run per minute and answers the rest with "429 Too Many Requests", protecting your database from search floods.