puppeteer examle

new.js

    const browser = await puppeteer.launch({ headless: false });
    const page = await browser.newPage();

    let openedAt = null;
    let redirectedAt = null;
    let endedAt = null;

    // Promise to track when a redirect happens
    let redirectPromise = new Promise(resolve => {
        page.on('response', response => {
            const status = response.status();
            const request = response.request();
            if (status >= 300 && status < 400) {
                const location = response.headers()['location'];
                if (location) {
                    redirectedAt = new Date();
                    console.log(`Redirected at: ${redirectedAt.toISOString()} - ${request.url()} → ${location}`);
                    resolve(); // Resolves the promise when the first redirect occurs
                }
            }
        });
    });

test.js

const puppeteer = require("puppeteer");

const START_URL = "https://start.example.com"; // Replace with your start URL
const FINAL_URL = "https://end.example.com"; // Replace with your final URL

(async () => {
    const attempts = 100; // Number of runs
    let totalDuration = 0; // To calculate the average time
    const results = []; // Store each attempt duration

    // Launch Puppeteer with your installed Chrome
    const browser = await puppeteer.launch({
        headless: false, // Run in visible mode
        executablePath: "/path/to/your/chrome", // Optional: Replace with your Chrome path if needed
        defaultViewport: null, // Use full viewport of your screen
    });

    for (let i = 0; i < attempts; i++) {
        const startTime = Date.now();

        const page = await browser.newPage();

        // Clear cookies and cache
        const client = await page.target().createCDPSession();
        await client.send("Network.clearBrowserCookies");
        await client.send("Network.clearBrowserCache");

        // Open the start URL and wait for the final URL
        await page.goto(START_URL);

        await page.waitForFunction(
            (finalUrl) => window.location.href === finalUrl,
            {},
            FINAL_URL
        );

        const endTime = Date.now();
        const duration = endTime - startTime;
        totalDuration += duration;
        results.push(duration);

        console.log(`Attempt ${i + 1}: ${duration}ms`);

        await page.close();
    }

    // Calculate the average time
    const averageDuration = totalDuration / attempts;
    console.log(`\nAverage Time: ${averageDuration}ms`);

    // Log all attempts
    console.log("\nIndividual Durations:");
    results.forEach((duration, index) => {
        console.log(`Run ${index + 1}: ${duration}ms`);
    });

    await browser.close();
})();