What are the factors to consider when deciding whether to switch servers for SEO purposes?

When deciding whether to switch servers for SEO purposes, it is important to consider factors such as server location, server speed, server uptime, and server security. These factors can impact website performance, user experience, and ultimately SEO rankings.

// Sample PHP code snippet for checking server location
$serverLocation = $_SERVER['SERVER_ADDR'];

if ($serverLocation == '123.456.789.0') {
    echo 'Server location is optimal for SEO.';
} else {
    echo 'Consider switching servers for better SEO performance.';
}