Diagnosing organic traffic drops requires a bottom-up diagnostic sequence through five layers: Crawl, Render, Index, Rank, and Click. Fixing lower layers first prevents wasted hours rewriting content that Google never crawled in the first place.
Site architecture is the hierarchical organization of URLs, navigation paths, and internal links that determines which pages search engines discover first, crawl most often, and rank highest. When this structure breaks down, even well-written content sits unindexed and invisible.
When organic traffic drops 30% over two weeks, the first instinct matters more than most practitioners admit. Some open server logs. Others fire up a crawling tool and wait for the audit report.