: Developers use these strings to match user OS settings with available translation files.
When a web browser sends a request, it might include a header like: Accept-Language: en-US, th-TH;q=0.9 0.9,th-TH
The string breaks down into two distinct parts defined by the HTTP/1.1 specification : : Developers use these strings to match user
Are you looking to or analyze its impact on SEO and localized content delivery ? 0.9,th-TH
: If English isn't available, it serves the Thai version because it has the next highest weight ( q=0.9 ).