Where do the ASP.NET validation controls validate data, on the Client or on the Web Server?

ASP.NET FAQS	Validation Controls FAQS >>
2. Where do the ASP.NET validation controls validate data, on the Client or on the Web Server?
ASP.NET validation controls validate data first on the client and then on the web server. If a client disables javascript on the browser then, client side validations are bypassed and validations are performed on the web server.
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