Technical SEO
Fixing architecture, code and server configuration so the engine can fetch, render and index the site without obstruction.
Analogy Mental model
The foundation, plumbing and fire exits of a building. Raise the tower as high as you like, and if the foundation is wrong none of the rest matters.
In practice What you actually do
Own robots.txt and the sitemap, clear 404s and 500s, set canonicals deliberately, keep Core Web Vitals inside the thresholds, and get hreflang right when you run several locales. Write tickets a developer can act on, quoting status codes and specific requests rather than feelings.
Where people get burned Pitfalls
Most of this work lives in somebody else's backlog. If you cannot describe the problem in the language of the person who fixes it, the fix does not happen, and the ranking loss looks mysterious for another quarter.
This entry was written in English from the Chinese original, not machine-translated. Read the Chinese version →