Crawler website: using proxy IP for website crawling tutorials

Crawler was anti-climbing whole crash? Proxy IP this magic tool to try

Do crawl brother understand, hard work to write the code just run for two days, the target site on your IP to seal. At this time, do not be stupid to change their own network IP, guaranteed that in two days broadband accounts have to be operator black. Today teach you a wild way - with proxy IP to the crawler wearing a vest.

What's so hacky about proxy IPs?

Simply put, it makes the target website think that the visitor is not the same person. For example, your local IP is Beijing Unicom, through the proxy transit after the display is Shanghai Telecom, and even the IP of Frankfurt, Germany. this trick against the anti-climbing mechanism is particularly effective, like playing chicken games open stealth hang, the site simply can not feel your real position.

Here's the point:Never use free proxies!Those public agent pool 99% are phishing, light can not climb the data, heavy account password leakage. Reliable still have to find a professional service provider, like the one we use.ipipgoThe company is directly connected to local carriers in more than 200 countries around the world, so it's much more stable than those second-tier carriers.

Hands-on teaching of reptilian proxies.

Using Python's requests library as an example, adding a proxy is a matter of three lines of code:

import requests

proxies = {
    'http': 'http://用户名:密码@proxy.ipipgo.com:端口',
    'https': 'http://用户名:密码@proxy.ipipgo.com:端口'
}

response = requests.get('destination URL', proxies=proxies)

Be careful to change the username and password inside to your own in theipipgoThe background to get the authentication information. Their API extraction is super easy, and the newbie docs are written like recipes, so you can use them by copying them.

How to choose the type of agent for different scenarios

Here's a point for you:

Dynamic Residential IP: Suitable for high-frequency request scenarios, affordable price (from $7.67/GB), IP pool automatically refreshed every hour
Static Residential IP: need to be used when long-term maintenance of the session, such as grabbing Maotai, spike goods, 35 dollars can be a monthly package
TK Line: a must for cross-border e-commerce data collection, go independent bandwidth without lagging

A Guide to Avoiding the Pit (Blood and Tears)

1. Don't put your eggs in one basket.Even if you use a proxy, you still need to do IP rotation, and set up a policy to change a batch of IPs every 5 minutes.
2. Fake Header to be in place: User-Agent remember to switch randomly, don't use the default python header of the requests library
3. Control of access frequencyThe best proxies can't cope with 100 violent requests per second, so it's safest to set a delay of 2-3 seconds.

Frequently Asked Questions First Aid Kit

Q: What should I do if my proxy IP is slow?
A: Priority to choose the geographical distance of the node, such as climbing the Japanese website to choose Tokyo room. ipipgo cross-border dedicated line measured latency can be pressed to 200ms or less.

Q: How do I break the CAPTCHA when I encounter it?
A: on the static residential IP + browser fingerprinting camouflage package, the specific program can find ipipgo's technical small brother to do customization, they 1v1 service thief reliable.

Q: How do I choose a package for enterprise crawlers?
A: Directly on the dynamic residential enterprise version, 9.47 yuan / GB also with the failure to retry protection, the average daily million requests without pressure.

Agent service provider selection doorway

Bloody experience having used seven or eight service providers:
1. Look at the purity of the IP: many small workshops of the IP has long been pulled by the major sites of the black
2. Check the protocol support: like ipipgo support HTTP/HTTPS/Socks5 at the same time to save the heart!
3. Trial volume to be enough: dare to give more than 3 days of test period is reliable, the kind of trial will give 10 IP pass before it is too late!

Brothers who need a specific configuration plan, directly on theipipgo official websiteFind online customer service. Remember to report the code word "crawler old driver" can prioritize the arrangement of technical docking (do not ask why you know, ask is the VIP service spoiled).