http proxy information: HTTP proxy configuration information query

Teach you to check the HTTP proxy information.

What's the biggest fear of web crawlers?IP blockedDefinitely ranked in the top three! This time to rely on HTTP proxy to save the day. But many people even the basic configuration of the proxy do not understand, today we nag some real.

Find proxy settings in your browser

In Chrome, for example, type in the address barchrome://settings/systemGo straight to the Proxy Settings page. Here you can see two types of configuration: auto-detection and manual settings. For manual settings, you need to fill in theIP addressrespond in singingport numberIt's like this:

Proxy server address: 103.88.46.220
Port: 8899

Caution! The settings portal may be hidden in different places for different browsers. For example, Firefox has to set the entry in thenetwork setupLook for it in, Edge has to be rummaged through in the system settings.

Proxy passwords hidden in the code

When writing a crawler script, remember to add the proxy parameter to the request header.Python's requests library works this way:

import requests

proxies = {
    "http": "http://user:password@103.88.46.220:8899",
    "https": "http://user:password@103.88.46.220:8899"
}

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

There's a pit here:Don't write account passwords directly into the code.! It is recommended to store sensitive information with environment variables.

IPIPGO Proxy Tips

Use IPIPGO's service to remember theirIP Survival CycleIt is 15 minutes, and it is recommended to set up a timed refresh. The measured success rate of their residential agent can reach 98%, which is much more stable than ordinary agents in the market.

Guidelines on demining of common problems

Q: What can I do if the agent can't connect?
A: First check the whitelist settings, IPIPGO needs to be bound to use IP. then try the telnet command:telnet 103.88.46.220 8899It's not the agent's fault if it works.

Q: What should I do if my agent is slow?
A: 1. change the node in low latency area 2. reduce the amount of concurrent requests 3. contact IPIPGO technical support for tuning

Q: Do I need to change my IP frequently?
A: Look at the target site anti-climbing strategy. General e-commerce sites are recommended to change once in 5-10 minutes, with IPIPGO's dynamic polling function is just right.

lit. experience of avoiding a pitfall (idiom); experience in avoiding pitfalls

Recently, I helped a friend to debug a crawler, and I couldn't get the data. In the end, I found out that I didn't choose the right proxy authorization method - some service providers want toBasic CertificationSome of them have to beToken ValidationThe IPIPGO documentation is quite clear, just follow the sample code and you'll be fine.

There's another common misconception:Not all scenarios require high stash agentsThe cost of using a normal anonymous proxy is more cost-effective for high-frequency operations like data collection. For high-frequency operations like data collection, it is more cost-effective to use an ordinary anonymous proxy instead. ipipgo's package options are more flexible and can be switched at any time according to business needs.

Final reminder: don't just look at the price when you buy a proxy service. Like the quality of the IP pool, API stability, these invisible costs are more important. I've used four or five service providers, IPIPGO's fault response speed is really fast, the last time I encountered a problem with the work order in 10 minutes to reply.