ip pool: ten million IP pool resource base, crawler dedicated proxy IP solutions

Why are crawlers always blocked?

Crawlers should have encountered this situation before: the script is running high, and suddenly the403 forbiddenOr CAPTCHA bombardment. At this time do not rush to doubt their own code level, nine times out of ten is the target site to block your IP! Ordinary users visit the low frequency, the site turned a blind eye, but the high frequency of the crawler's request is like a searchlight in the dark night, minutes to expose the whereabouts.

The traditional solution is to engage in several server IP rotation, but this method is equivalent to chopping tanks with a chopper - completely inadequate. An e-commerce platform measured data: a single IP persistent request more than 20 times / minute will trigger the wind control, and ten million goods data collection requires at least 5000 + IP to ensure that the task is completed.

The right way to open an IP pool

Real professional crawlers are usingDynamic IP PoolThe main point here is to talk about ipipgo's practical skills. Their IP pool has a hard work - each request automatically switch terminal export IP, as if the crawler installed a myriad of virtual ID cards.

import requests

proxies = {
  'http': 'http://username:password@gateway.ipipgo.com:9020',
  'https': 'https://username:password@gateway.ipipgo.com:9020'
}

response = requests.get('https://target-site.com/api', proxies=proxies)
print(response.status_code)

Look at the proxy address in thegateway.ipipgo.comThis is their intelligent scheduling system. The actual test found that 10 consecutive requests get different exit IPs, and the geographic location and operator of each IP are changing randomly.

What are the hard metrics to look for when choosing a proxy IP?

The market is full of agency service providers, but there are not many reliable. Teach you a few tricks to avoid pitfalls:

1. Survival time > 24 hoursThe IP's are basically fake pools
2. be in favor ofpay per volumethat are suitable for the crawler program
3. It's got to be.IP whitelistingrespond in singingAPI Dynamic Extractionfunctionality

ipipgo in this piece to do more real, their residential proxy IP average survival time control in 30-120 minutes, just stuck in most of the site outside the wind control cycle. The actual test with his agent to capture a travel platform data, continuous work for 8 hours did not trigger any verification mechanism.

Troublesome maneuvers in the real world

Share a few solutions for real scenarios:

• The Anti-Anti-crawler Route: With random request interval (0.5-3 seconds) + IP switching, the success rate is increased by 70%
• Pinpointing Demand: Add ?city=Shanghai as a geographic identifier in the API parameter if you need a specific city IP.
• Exception handling mechanism: encountered 429 status code automatically hibernate for 1 minute, change IP and retry

Here's a cold one: ipipgo'sMobile Base Station IPIt is especially suitable for grabbing data from the APP side, because these IP segments belong to normal user behavior with the operator and are more difficult to be identified than server room IPs.

Frequently Asked Questions QA

Q: Is a larger IP pool better?
A: No! Millions of valid IPs work better than millions of spam IPs. ipipgo's pool is updated daily with more than 30% IPs to ensure availability > 92%!

Q: What should I do if I encounter a website asking me to log in?
A: withsession holdFunction, let a specific IP to maintain the login state 15-30 minutes, other requests continue to change the IP operation

Q: How can I tell if a proxy is in effect?
A: Visit http://ip.ipipgo.com/checkip, the returned IP is not the local address means the proxy is successful

Tell the truth.

Proxy IP is not a panacea, but it is indeed the immediate need of the crawler project. I have used five or six service providers, and finally locked ipipgo mainly because of three points:Price transparency(Unlike some platforms that hide hidden consumption),responsiveness(Average delay <200ms),Technical Support(Customer service really solves technical problems, not just robots that talk in platitudes). Recently they have a new hourly billing package, which is especially friendly to small-scale crawlers, so you don't have to meat the monthly fee.

Finally, to remind the newbie: do not waste time on free agents, those who claim not to pay for the IP pool, either slow to snail, or early blacklisted by the major sites. Professional things to professional tools, save time to write a few more regular expressions do not smell?