What is URL Parameter?
Query-string values (?sort=price) that create crawlable URL variants. Parameters expand URL space and slow rendering queues, so audits decide per parameter: crawl, canonicalize, or block.
Related terms
Faceted Navigation
Filter URLs (color, size, price) that multiply crawlable combinations. Controls include noindexing thin facets, canonicalizing to parents, and parameter handling in Search Console.
Crawl Budget
The number of pages a search engine will crawl on a site in a given period, driven by server capacity and demand signals. Large or slow sites must spend it on indexable, valuable URLs.
Canonical Tag
A hint (rel="canonical") naming the preferred URL when duplicates exist. Only about three in five pages web-wide carry a valid one, so validation must cover target quality and conflicting signals.
Technical SEO
The crawling, indexing, rendering, and performance work that lets search engines reach, understand, and serve your pages. It covers directives, architecture, speed, and structured data rather than words on the page.
Crawling
How search-engine bots discover pages by following links, sitemaps, and directives. If a URL is never crawled, it cannot be indexed no matter how good its content is.
Indexing
Storing and organizing crawled pages so they can be retrieved for queries. Indexing is selective: crawled does not mean indexed, and indexed does not mean ranking.