Load and validate license on page load, then show site message.
async function loadSiteMessage() const res = await fetch('/license_api.php?action=get_message'); const msg = await res.json(); if (msg && msg.message_text) const msgDiv = document.getElementById('site-message'); msgDiv.innerHTML = `<div class="toast-message $msg.message_type">$msg.message_text</div>`; Toad License Key And Site Message
This is designed as a (PHP/MySQL) with a simple frontend UI (HTML/JS) — but the logic can be adapted to Node.js, Python, etc. Load and validate license on page load, then
$now = new DateTime(); $expires = new DateTime($license['expires_at']); if ($now > $expires) return ['valid' => false, 'reason' => 'License expired']; const msg = await res.json()