GSC

GSC is an initialism that can refer to several organizations, services, and catalogs across different fields. One of the most widely known uses is Google Search Console (GSC), a free web service from Google that helps website owners monitor and optimize their site’s presence in Google Search results. It provides performance metrics, indexing status, and diagnostic tools for sitemaps, mobile usability, and security issues.

GSC also denotes GSC Game World, a Ukrainian video game developer established in the 1990s. The studio is best known for creating the S.T.A.L.K.E.R. series and has been involved in multiple projects that contributed to the post-Soviet and eastern European game development scene.

In astronomy, GSC stands for the Guide Star Catalog, a large catalog of stars used to provide reference points for telescope guiding and pointing. An expanded version, Guide Star Catalog II (GSC-II), has supported more extensive astrometric calibrations and observational workflows in both ground- and space-based astronomy.

In other contexts, GSC can refer to various groups, committees, or corporate entities, depending on the domain and organizational naming conventions. When encountering the acronym, the intended meaning is typically clarified by the surrounding subject matter.