Web Page Crawler: Web Page Proxy Crawler Download

First, the web page crawl for why always overturned? You may be missing this magic tool

The old iron who has engaged in data crawling all understand that the biggest headache is that the target site suddenly gives you aIP blockingI'm not sure if this is a good idea, but it's a good idea. Yesterday also good script, today suddenly 403, this time really want to smash the keyboard. In fact, this thing with the game open hang was blocked a reason, the same IP crazy request, the site does not block you block who?

That's when it's time toproxy IPOn the field. Like playing hide-and-seek when constantly changing vests, so that the site thinks that each request is a different person in the visit. Take ipipgo home services as a chestnut, their dynamic IP pool is large enough to give you a second IP like Sichuan opera face changing, effectively reducing the probability of being blocked.

import requests

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

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

Second, hand to teach you to ride the proxy capture environment

The whole proxy capture is actually not as complicated as imagined, the key is to choose the right tool. Here we recommend usingipipgo's API direct connect mode, three steps and you're done:

1. Go to the official website to register for a test package (free credit for newcomers)
2. Configure authentication information in the code
3. Randomized UA camouflage for request headers

Be careful to set theFailure Retry MechanismIf you encounter an IP failure, it will switch automatically. It is recommended to set the timeout at 3-5 seconds, don't wait. Here is a configuration reference table:

Third, I've stepped over these potholes for you.

1. CAPTCHA bombingDon't be a hard-ass when it comes to this: reduce the frequency of requests + change the type of IP. ipipgo uses a mix of server room IPs and residential IPs for better results.
2. data garbleRemember to check the encoding format of the response header, don't just default to utf-8!
3. I can't get up to speed.: Turn on ipipgo's exclusive bandwidth package, it's faster than the shared channel by a mile!

IV. QA time: answers to high-frequency questions

Q: What should I do if my proxy IP is not working?
A: choose ipipgo this kind of service provider with automatic switching function, their API can return the available IP in real time

Q: What if I want to crawl overseas websites?
A: ipipgo supports 200+ countries and regions nodes worldwide, just choose the export IP of the target region (pay attention not to involve sensitive content).

Q: Do free proxies work?
A: Temporary testing is fine, long-term use or professional services. The stability of free agents...let's put it this way, it's more unreliable than the first love

V. Why die for ipipgo?

Having used several proxy services, I ended up locking up ipipgo mainly because of three things:
1. Responsive enough for the top: Measured latency is more than 30% lower than peers
2. Aftermarket is hardcore enough: Technical customer service really solves problems, not repeaters
3. Billing is flexible enough: Pay-as-you-go, no monthly subscription, suitable for project-based needs.

They also recently came out withIntelligent Routing FunctionI can automatically match the optimal node. The actual test to catch the data of an e-commerce platform, the success rate from 68% directly dry to 92%, this wave is not a loss.

Finally nagging sentence: do data capture to speak of virtue, do not be a website to the death grip. Control the frequency + use a good proxy IP, in order to be a long stream. There are technical problems welcome to ipipgo official website to find customer service nagging, their technical documents written more than a novel wonderful (manual dog head)!