Visual Crawler Tools: Visual Agent Crawler Development

Why are crawlers always blocked? Try Visual Proxy

Recently, there are always people complaining to me that using ready-made crawler tools to capture data, every now and then the IP will be blocked, especially the brothers engaged in e-commerce price comparison, public opinion monitoring, often get up at 3:00 a.m. to change the IP. in fact, this is really no need to be so tortuous, and now a lot of visualization tools support theDirect Proxy Pooling, today we will teach you how to play with the proxy IP of ipipgo crawler.

Build a visual proxy crawler in three steps

Let's start with an open source oneOctoparseorParseHubFor this type of tool (don't use the homegrown ones that you have to charge a membership for), focus on the network settings module in the configuration. In the Proxy Settings field, select Custom Mode and paste in the API address provided by ipipgo. Note that there is a pitfall here: dynamic residential IPs should be selected.polling modeRemember to check the "Static IP" box.stationary sessionThe

// Example configuration code (in Python)
proxies = {
    "http": "http://user:pass@gateway.ipipgo.net:9020",
    "https": "http://user:pass@gateway.ipipgo.net:9020"
}
response = requests.get(url, proxies=proxies)

Agent selection know-how for different business scenarios

Here's a quick note for you guys based on my experience with real-world testing:

Practical Tips for Anti-Counter-Climbing Strategies

Don't think that just because you've hooked up a proxy, everything will be fine! Websites are installed now.Fingerprint Recognition System, teach you a few wildcards:

1. Change the time zone setting in your browser's fingerprint to match the proxy IP location.
2. Randomize the window resolution every time you switch IPs (don't use 1024×768 or something lame like that).
3. Include in the request header aX-Forwarded-Forparameter, the content is filled with three random IPs

Common pitfalls QA

Q: Proxy IP shows successful connection, but the actual request fails?
A: Ninety percent of the protocol did not choose the right, e-commerce sites with HTTPS protocol, social platforms are recommended to go Socks5

Q: How to calculate the traffic in the Dynamic Residential IP package?
A: ipipgo is billed by downstream traffic, 1GB can probably grab 50,000 product detail pages (don't open the image download)

Q: What if I need to manipulate multiple crawler tasks at the same time?
A: Create multipleIndependent Agent ChannelThe Enterprise package supports 50 concurrent ports.

Stream Saving Package Selection Guide

Beginners are advised to start withDynamic residential (standard)Package practice, 7.67 yuan / GB of cabbage price, there are 500MB of trial traffic per day. If you do cross-border e-commerce business that requires a fixed IP, directly on the static residential package, although 35 dollars an IP, but can bind the MAC address anti-association.

One last piece of cold knowledge: many people leave out of their visualization tools theDNS resolution settingsThis will cause the proxy IP to work, but the request will still go to the local network. Remember to check the "Remote DNS resolution" in the advanced settings, this option is hidden deep, 80% of new hands are planted here.