NodeJS Crawler: Puppeteer Headless Browser

When the crawler meets the iron bolt: Puppeteer how to use the proxy IP to continue life

Recently, a lot of brothers asked me to use NodeJS to do Puppeteer crawl data always be blocked IP how to do? This is like wearing the same clothes every day to go to the supermarket to steal snacks, the monitor does not catch you caught who? Today, we will nag how to use the proxy IP to the crawler "change armor", focusing on our family with the smooth ipipgo service.

Why doesn't your crawler live more than three days?

A lot of newbies think that everything is fine with a headless browser and end up running for just two daysIP blacklisting. Websites are so refined now that they don't just look at UserAgent, they will:

• Check IP request frequency (like a wolf against high frequency access)
• Identify the IP segment of the server room (the IP of Ali Cloud and Tencent Cloud has long been written down in a small book)
• Detecting mouse trajectory (headless browsers operate too much like robots)

This is where a proxy IP is needed tofight a guerrilla war, especially services like ipipgo that offer residential dynamic IPs that are much more reliable than regular server room IPs.

Hands-on with changing IPs in Puppeteer

const puppeteer = require('puppeteer');

async function stealthCrawl() {
  const browser = await puppeteer.launch({
    args: [
      // Replace the proxy with the one provided by ipipgo.
      '--proxy-server=http://user:password@proxy.ipipgo.io:24000'
    ]
  }).

  // Remember to add a random wait timeout to prevent blocking
  await page.waitForTimeout(Math.random() 3000 + 2000);

  // Other crawling operations...
}

Focused attention:
1. ipipgo's proxy address format isUsername:Password@Gateway Address:Port
2. It is recommended to restart the browser and change the IP address for each task.
3. Remember to set the session hold time for the residential proxy (1-30 minutes can be set in the ipipgo backend).

Proxy IP purchase guide to avoid pitfalls

The market is a mixed bag of agency services, teaching you to see the door:

Practical Frequently Asked Questions QA

Q: What should I do if my proxy IP is not working?
A: 80% encountered IP blocked, ipipgo's automatic fusion mechanism will switch to a new IP within 30 seconds, much faster than manual processing

Q: Why does it slow down when I use a proxy?
A: Check whether the use of overseas nodes, ipipgo support by the location of the target site to select the server room, the domestic business remember to select theContinental Optimized Routes

Q: What if I need to run multiple crawlers at the same time?
A: in ipipgo background to create multiple sub-accounts, each crawler with independent authentication information, to avoid the account being blocked even sitting

Three words of advice from someone who's been there.

1. Don't save money on proxy services - being blocked is not only a loss of data, but also a possible lawsuit!
2. Dynamic IP + request randomization is the way to go (ipipgo's intelligent rotation strategy has been tested to be effective)
3. Regularly check the quality of the proxies with the ipipgo provided by theConnectivity Kanbanmonitor at any time

Finally said a heartfelt, crawler this work is Taoist foot high devil high. Last week I used ipipgo's dynamic residential IP to successfully crawl through an e-commerce platform 300,000 data, the key is toMake the site feel like every request is a real user. Remember, a good proxy service will get you out of the 80% hole less often, and the code will do the rest of the grinding.