The honest answer: low-competition Turkish keywords can move within 2–3 months, while competitive commercial terms typically take 6–12 months of consistent work. Anyone promising page one in 30 days is selling you risk.
Why Turkish changes the timeline
Turkish is agglutinative — suffixes generate dozens of variants per root keyword. A keyword set translated from English misses most of the real demand, which means the first weeks of any serious engagement go into native keyword research and page mapping. Skipping this step is the most common reason foreign companies see no movement after six months.
A realistic phase plan
Months 1–2: technical fixes, keyword architecture, page mapping. Months 2–4: content production begins, early long-tail rankings appear. Months 4–8: commercial terms climb as authority builds. Months 8–12: map-pack and competitive head terms become winnable. Throughout, Search Console data tells us which "position 5–15" pages to reinforce — the highest-ROI work in SEO.
What you should demand from an agency
Monthly English reporting tied to pipeline, not vanity metrics; a keyword map you can read; and no guarantees — Google itself forbids them. Consistency beats intensity: six months of steady publishing outperforms a three-month sprint followed by silence.