Python Crawler Advanced: Playwright Invisible Patterns in Action

Playwright Stealth Mode + Proxy IP Anti-Blocking

Recently, some friends who do data collection always complained to me that using Playwright to write crawlers always triggers the website to climb back, either by popping the CAPTCHA or directly blocking the IP.Today, we will talk about the ultimate solution to this problem - thePlaywright Stealth Mode + Dynamic Proxy IPsThe combo, focusing on how to use the ipipgo home proxy service to take care of the puzzle.

Why does your crawler always get caught?

There are two key points that many newcomers tend to overlook: browser fingerprints and IP addresses. although Playwright can simulate a real person's actions, the site detects the browser's environmental parameters. Stealth mode partially hides fingerprints, but this alone is not enough. Combined with proxy IP rotation, it can realizedual protectionThe

Four Steps to Real-World Configuration

Here's an example of ipipgo's residential proxy, focusing on a few configuration details that are easy to step on:

Key Step 1: Proxy Authentication Processing

Many tutorials teach people to fill in the proxy directly in the launch parameter, but when it comes to the need for account password authentication, you will be blind. The correct way to do this is to use theproxy-serverparameter with authentication information:

browser = playwright.chromium.launch(
    proxy={
        "server": "http://ipipgo-proxy.com:8000",
        "username": "your account",
        "password": "your key"
    }
)

Key Step 2: Automatic IP Rotation

Don't be a fool and use a fixed IP, ipipgo's proxy supportsession_idParameters automatically change the exit IP. add a random number each time a new context is created:

context = browser.new_context(
    proxy={"server": f "http://{random number}:your_password@ipipgo-proxy.com:8000"}
)

Debugging Tips

Don't panic when you encounter a proxy that doesn't take effect, we'll teach you two ways to verify it:

1. Add a test page to the code:page.goto("https://ipipgo.com/checkip")View the displayed IP
2. Catch proxy errors with try-except and automatically switch alternate IP pools

White Frequently Asked Questions QA

Q: What should I do if the proxy IP is invalid after using it?
A: It is recommended to use ipipgo's dynamic residential agent, their IP survival cycle is long, encountering failure will automatically allocate a new IP, the stability of the actual test than the rest of the market is higher than 30% or so.

Q: How do I get around the need to collect data from different regions?
A: In the proxy request plus the region parameters on the line, for example, to the United States IP on the passcountry=USipipgo supports 200+ countries and regions for directional allocation, and can also specify city-level positioning.

Q: Why is it still recognized after using a proxy?
A: Check three things: 1. whether the stealth mode is on 2. whether the proxy type is high anonymity 3. whether there is any handling of WebRTC leaks. We recommend using ipipgo's socks5 proxy, which comes with an anti-leakage mechanism.

Guide to avoiding the pit

Finally, a few tears to remind lessons: do not try to cheap with a free proxy, 90% are public proxy pool; pay attention to the request frequency control, even if you use the proxy do not bombardment; encountered CAPTCHA do not hard just, it is recommended to access ipipgo CAPTCHA identification API automatic processing.

Configured according to this scheme, our team's project blocking rate dropped from 40% to below 5%. Especially ipipgo'sLong-term residential agentThe first one is the one that can be used for 12 hours on a single IP without failing, which is especially powerful in the scenarios where the session needs to be maintained!