web dev//SEO

SEO (search engine optimization) is the work of making web content discoverable and rankable by search engines. It rests on three pillars: crawlability (whether engines can find the pages), indexability (whether they will store them) and relevance (whether they will rank them).

SEO (search engine optimization) is the work of making web content discoverable and rankable by search engines. It rests on three pillars: crawlability (whether engines can find the pages), indexability (whether they will store them) and relevance (whether they will rank them).

Technical SEO works on what a machine, the crawler, reads: robots.txt, the sitemap, canonical URLs, structured data (JSON-LD, schema.org, rich snippets), page speed and mobile-friendliness. Its counterpart for social platforms is Open Graph, which controls how a link previews on WhatsApp, X or Discord.

On-page SEO works on the page itself: title tags, meta descriptions, heading hierarchy, internal linking and the quality of the content.

AI has made AEO a parallel discipline. Search engines still matter, but LLMs are becoming a primary way people find information, and where SEO optimizes for ranking in a list, AEO optimizes for being cited in an answer.

The other side of every signal here is the reader: the stages a crawler runs through are under crawling. Within SEO itself, canonical and redirect decide which copy counts, indexability separates known from crawlable from indexable, RSS announces what is new, and spam is the line not to cross.