0.9,th-th ★ High-Quality & Quick

This string is a specific component used in , specifically within the Accept-Language header. It communicates a user's preference for Thai (Thailand) with a weighted "quality" (q-factor) of 0.9 . 1. Technical Decomposition

While primarily used in HTTP, this syntax appears in other technical environments:

: If English isn't available, it serves the Thai version because it has the next highest weight ( q=0.9 ). 0.9,th-TH

: Used by clients to request specific data formats or localized error messages from RESTful APIs. Summary Table: Component Meanings th Language Code ISO 639-1 code for Thai TH Region Code ISO 3166-1 alpha-2 code for Thailand 0.9 90% weight ; high priority but not the absolute first choice

The server analyzes this list to determine which version of a page to serve: This string is a specific component used in

The string breaks down into two distinct parts defined by the HTTP/1.1 specification :

: This identifies the language as Thai ( th ) and the region as ( TH ). Technical Decomposition While primarily used in HTTP, this

: If neither is found, the server provides its own default language. 3. Contextual Variance