CDN, DNS and latency optimization for a Turkey-focused SaaS
A CDN does not fix every latency problem. Measure DNS, assets, origin TTFB, API regions and database distance separately.
User-perceived latency is a stack: DNS, connection setup, assets, API round trips and database work.
CDNs help most with cacheable content. They cannot compensate for every request returning to a distant origin database.
Measure real Turkish networks, including mobile, and track p95 API latency and TTFB. Optimize in order: DNS chain, asset caching, origin response time, data-region placement and connection reuse.
Infrastructure Realities from Turkey
Field decisions for Turkey-focused SaaS: self-hosting vs cloud, local/global payments, CDN, DNS and real latency.