How should a multilingual SEO strategy be built for content localization?

Short answer: The strategy is built on per-market intent research, not on translation: a separate keyword set for each language, content adapted to local queries, and a clean URL structure connected with hreflang. Word-for-word translation produces pages optimized for the wrong terms.

Build order

• Market and intent map: collect real query data in the target language; a translated Turkish list does not count as keyword research.
• Terminology glossary: fix market equivalents for product and industry terms, including country variants of the same language, in one glossary.
• Content layering: fully localize commercial pages (prices, units, legal copy, examples); adapt informational content; write some topics from scratch for the market.
• Technical linking: a subfolder per language or country, reciprocal hreflang plus x-default; local date, currency, and unit formats.
• Local proof: E-E-A-T signals per market; a local imprint, local references, and authors who know the market.

TYS Digital Performance starts localization with in-market search data; the quality bar is that each language version matches the real queries of its own market, and that match is measured regularly against a baseline.