When a website suddenly stops loading, the cause is not always the hosting server. It could be DNS resolution, nameserver settings, DNS records, CDN configuration, SSL, browser cache, or the web server itself. In website support cases, checking the domain and DNS setup early can often save time. For people managing websites, client projects, or hosting customers, what is your normal first check? Do you start with DNS and nameservers, or go straight to the hosting server, logs, and uptime monitoring?
Check your CPU usage (and ideally RAM and disk as well). If performance is still poor, try restarting the server or specific services, for example, the SQL Server service. DNS and nameserver issues are hardly ever the cause, though.