function startRedirect() {
            // Get URL from query parameter
            const urlParams = new URLSearchParams(window.location.search);
            const redirectUrl = urlParams.get('url') || 'https://example.com'; // Default URL if none provided

            // Validate URL
            if (!redirectUrl.startsWith('http://') && !redirectUrl.startsWith('https://')) {
                alert('Invalid URL!');
                return;
            }

            // Display target URL
            const targetUrlElement = document.getElementById('targetUrl');
            targetUrlElement.innerHTML = redirectUrl;

            // Display countdown and progress bar
            let timeLeft = 10;
            const countdownElement = document.getElementById('countdown');
            const progressBar = document.getElementById('progressBar');
            countdownElement.style.display = 'block';
            progressBar.style.display = 'block';
            countdownElement.innerHTML = `Redirecting in ${timeLeft} seconds...`;

            // Disable button
            document.querySelector('.btn').disabled = true;

            // Start countdown
            const countdown = setInterval(() => {
                timeLeft--;
                countdownElement.innerHTML = `Redirecting in ${timeLeft} seconds...`;
                
                if (timeLeft <= 0) {
                    clearInterval(countdown);
                    window.location.href = redirectUrl; // Redirect
                }
            }, 1000);
        }

        // Display target URL on page load
        window.onload = function() {
            const urlParams = new URLSearchParams(window.location.search);
            const redirectUrl = urlParams.get('url') || 'https://example.com';
            document.getElementById('targetUrl').innerHTML = redirectUrl;
        };