Getting Akamai? Here’s why it happens and the exact fix.
You are seeing an Akamai Bot Manager block because Akamai classified your traffic as automated. The fix: use residential proxies with browser TLS impersonation, handle the _abck and bm_sz cookies, and maintain sensor data.
Akamai requires JavaScript execution for its sensor. A headless browser with stealth patches is the most reliable approach.
Akamai maintains an IP reputation database. Residential IPs pass where datacenter IPs are immediately flagged.
After page load, wait 3-5 seconds for the Akamai sensor to complete its data collection and POST.
The _abck cookie from successful sensor validation must be included in all subsequent requests.
const puppeteer = require("puppeteer-extra");
const StealthPlugin = require("puppeteer-extra-plugin-stealth");
puppeteer.use(StealthPlugin());
const browser = await puppeteer.launch({
args: ["--proxy-server=gw.knoxproxy.com:7000"],
});
const page = await browser.newPage();
await page.authenticate({ username: "USER", password: "PASS" });
// Load page and let Akamai sensor execute
await page.goto("https://akamai-protected.example/", {
waitUntil: "networkidle2",
});
// Wait for sensor data POST to complete
await page.waitForTimeout(5000);
// Verify _abck cookie is set
const cookies = await page.cookies();
const abck = cookies.find((c) => c.name === "_abck");
console.log("_abck set:", !!abck);
// Now access protected endpoint with valid sensor cookie
await page.goto("https://akamai-protected.example/api/flights");
const data = await page.evaluate(() => document.body.innerText);
console.log(data);
await browser.close();Test your setup with our proxy checker, then contact support if Akamai still won’t clear.
Akamai Bot Manager is one of the most widely deployed bot detection platforms, protecting major banks, airlines, and retailers. It uses a client-side sensor script (typically loaded from a path ending in sensor-data) that collects hundreds of browser fingerprint signals. Akamai sets _abck and bm_sz cookies. The sensor data is submitted as a POST request, and the server validates it before granting access. Without valid sensor data, Akamai blocks all subsequent requests.
Use a headless browser that executes the Akamai sensor script, or replicate the sensor data generation (advanced).
Let the Akamai sensor complete in a browser context. The _abck cookie is set automatically after valid sensor submission.
Use curl_cffi or a stealth browser to present a browser-like TLS fingerprint.
Akamai Bot Manager Premier is the hardest commercial anti-bot to bypass. If stealth browsers with residential proxies are not sufficient, contact KnoxProxy support for enterprise-level solutions.
Look for _abck and bm_sz cookies, or JavaScript loaded from paths containing "sensor-data" or "akamai". The block page may be a blank page, a CAPTCHA, or a custom error.
Some specialized tools can generate sensor data programmatically, but this is an advanced technique that requires reverse-engineering the sensor script. It breaks frequently as Akamai updates. A stealth browser is more maintainable.
Generally yes. Akamai sensor data validation is more complex than Cloudflare Turnstile. Akamai collects more fingerprint signals and validates them server-side. The stealth browser approach works for both, but Akamai requires more careful session management.
KnoxProxy comes pre-configured to avoid the most common errors. Start a free trial and fix Akamai for good.