Short-effective http proxy: short-effective HTTP proxy efficient use of the program

When crawlers meet CAPTCHA? Try this wild trick

Do data collection of the old iron is estimated to have experienced this scenario: just climbed a few pages of data, suddenly jumped out of the CAPTCHA or directly blocked IP. this timeShort-lived HTTP proxyIt's like having a master key with you, especially with a service like ipipgo that can change IPs in seconds, which is a direct solution to the snag.

Take a real case: an e-commerce price monitoring system, the original fixed IP collection, an average of 10 minutes to be blocked. After switching to ipipgo's short-lived proxy and setting up automatic IP switching for each request, it ran continuously for 6 hours without any problems. Here there is a tawdry operation - the proxy validity period is set to a single request, equivalent to each visit to wear a new vest.

import requests
from ipipgo import ShortProxy ipipgo official SDK

def crawler(): proxy = ShortProxy.get_proxy(lifetime=60)
    proxy = ShortProxy.get_proxy(lifetime=60) 60 seconds autodestroy
    response = requests.get(
        'https://target.com',
        proxies={'http': proxy.url}
    )
    print(f "This time using IP: {proxy.ip} Destroyed by execution")

Three Tips for Playing Short-Acting Agents

Tip #1: Dynamically Match Survival Cycles

Not all scenarios require a second IP change, with flexible settings based on the target site's anti-climbing mechanism:

Tip #2: The Great IP Warm-Up

Do not get a new IP immediately do the job, first let the IP to visit a few ordinary pages. For example, with ipipgo IP pool, you can set up automatic access to Baidu, Sina and other sites, the IP "mature" and then perform the task, the survival rate can be increased by 40% or more.

Tip #3: Abnormal Meltdown Mechanisms

Add a judgment in the code: when three consecutive IP requests fail, automatically switch the data center node. ipipgo supports global switching in eight regions, so as to avoid the situation where a certain regional IP is blocked en masse.

A practical guide to avoiding the pit

Recently, I found a typical problem when I debugged a crawler for a client: obviously using a proxy, it was still recognized as a robot. Later found that the browser fingerprint leakage, here to teach you two tricks:

1. Every time you change IP, synchronize the change of User-Agent (ipipgo's SDK comes with this function).
2. Disable WebRTC to prevent real IP leakage

// Browser incognito mode settings
const puppeteer = require('puppeteer');
const ipipgo = require('ipipgo-proxy');

async function stealthCrawl() {
  const proxy = await ip ipgo.getBrowserProxy();
  const browser = await puppeteer.launch({
    args: [ `--proxy-server=${proxy.url}` ]
  });
  // Automatically process the fingerprint information
  await ipipgo.applyFingerprint(page);
}

5 Questions You Might Ask

Q: Are short acting agents cheaper than long acting ones?
A: ipipgo's short-lived proxy uses thevolumetric billingmode, especially suitable for sudden tasks. For example, when you do spike monitoring, you can use as much as you want and save 60% cost compared to a monthly subscription.

Q: Will the IP be recognized if I change it too quickly?
A: the key to look at the quality of IP. ipipgo's residential agent pool contains 5 million + real home IP, with intelligent switching algorithms, measured per second to change 3 IP will not trigger the wind control!

Q: What authentication methods are supported?
A: It is recommended to use whitelist to bind the server IP, and it also supports username and password authentication. If you are in a hurry, the configuration can be done in 5 minutes on the official console.

Q: Can I specify a city or carrier?
A: When you create a task in the background of ipipgo, you can check a specific province or even city, and the operator supports mobile, unicom and telecom networks.

Q: What should I do if I encounter a connection failure?
A: First check whether the proxy format is correct, it is recommended to use the official SDK to obtain automatically. If persistent anomalies, submit a work order in the console, the average response time of technical customer service <3 minutes

Why ipipgo?

Last week there was a customer doing live data monitoring, originally using a free proxy to always lose data. After changing to ipipgo, three obvious changes:
1. Request success rate soared from 671 TP3T to 99.21 TP3T
2. Higher IP availability in the early morning hours (thanks to the addition of residential IPs in Europe and the United States).
3. Accidental discovery of geographically limited content that can be captured (use within compliance)

Their technical director's exact words, "This is money well spent, much more cost-effective than recruiting two programmers to maintain the proxy pool." In fact, many customers have finally done the math, the use of professional proxy services, the comprehensive cost, than self-built proxy servers lower than at least 40%.

There's also a new feature that recently went live on ipipgo - theIntelligent IP SchedulingThe system automatically learns business scenarios and dynamically adjusts IP replacement strategies. For example, if it detects that the response of the target website is slowing down, it will automatically extend the IP usage time, and this month it has already helped e-commerce customers to reduce the proxy consumption of 17%.