Safari is the default browser for Apple devices and refreshing it can help ensure optimal webpage experience. To refresh in Safari on macOS, click the Reload button or press Command + R for a normal refresh, or hold down Command + Option + R for a hard refresh that bypasses cache. On iPhone and iPad, pull downwards on the webpage to trigger a refresh, tap "Go" after selecting the URL in the address bar, or use keyboard shortcuts like Command + R for a standard refresh or Shift + Command + R for a hard refresh. Alternatives to manual refreshing include auto-refresh extensions and using Safari Developer Tools. Troubleshooting refresh issues may involve clearing cache and cookies, disabling browser extensions, resetting network settings, or updating Safari.