Web search engines
Crawling, indexing and basic architecture.
Topic hub
Search engines, crawling and indexing
Series about information retrieval, crawlers, inverted indexes, PageRank, web mining and technical SEO.
Start with search engines and inverted indexes to understand how a page goes from being crawled to being retrievable.
Then connect that theory with PageRank and technical SEO to improve internal links and quality signals.
Search indexes and inverted indexes
How searchable content is organized.
PageRank explained
Authority, links and ranking signals.
Web crawler
How a website is discovered and traversed.
Angular SEO
Rendering, metadata and crawlable routes.