
The biggest headache in data crawling.
The brothers who do content handling must have encountered this situation: obviously run well with scripts, suddenly the platform blocked IP. What's even more annoying is that some platforms will purposely give you the chance toReturn false dataThe problem is that the anti-climbing mechanism of the platform is getting more and more sophisticated. In the end, the problem lies in the platform's anti-climbing mechanism is more and more refined, ordinary single IP simply can not carry.
How did proxy IPs become a lifesaver?
To put it bluntly, it's a game.face changing game. Assuming you change your IP address every time you visit, the platform's anti-crawling system won't be able to tell if you're a real person or a bot. There are three key points to note here:
As a chestnut: Python requests sets up a proxy
import requests
proxies = {
"http": "http://用户名:密码@gateway.ipipgo.com:端口",
"https": "http://用户名:密码@gateway.ipipgo.com:端口"
}
response = requests.get('destination URL', proxies=proxies)
1. IP pool should be large enough (at least tens of thousands of dynamic IPs)
2. Switching frequency should be natural (not neatly every 5 seconds)
3. Must be usedHigh Stash Agents(Don't let the platform find out you're using a proxy.)
Hands on with ipipgo for data collection
Here we recommend using our own product ipipgo'sDynamic Residential Agents, the actual test can carry a certain sound and a certain red book of perverted anti-climbing. The specific operation is divided into four steps:
1. Generate API extraction link in ipipgo background.
2. Set the interval of automatic IP replacement (recommended 30-120 seconds random)
3. Use with User-Agent rotation.
4. important! Add 3 seconds random delay to avoid regular visits
Note that there is a pitfall here: many people forget to set a timeout when using proxies and end up getting stuck in the process. It is recommended to add aretry mechanismIf a connection timeout is encountered, the connection is automatically retried.
First Aid Guidelines for Common Rollover Scenes
| symptomatic | method settle an issue |
|---|---|
| Suddenly a large number of 403 errors are returned | Immediately change the IP segment and check the request header for completeness |
| Acquisition is getting slower and slower | Increase IP pool capacity to reduce the frequency of individual IP usage |
| Excessive data duplication | Check the de-duplication logic and add page feature value validation |
A must-see QA session for the little guy
Q: Why am I still blocked when I use a proxy?
A: eighty percent is with a low-quality data center agent, change ipipgo's residential IP immediately effective, pro-test collection success rate can be pulled from 40% to 90% +!
Q: Do I need to maintain my own IP pool?
A: Don't! ipipgo's API can automatically filter invalid IPs, which is much more reliable than writing your own maintenance scripts. There was once a customer who had to do it himself, and as a result, the IPs of 30% were all invalid, and he suffered a loss!
Q: What if the platform requires login to capture?
A: Use ipipgo'ssession hold functionThe same IP is bound to one account, so that it will not trigger an off-site login alarm, but also to ensure data integrity.
Tell the truth.
In fact, nowadays, when you do data collection, the spell isIP Resources and Strategies. Having used five or six service providers, in the end it was ipipgo that had the highest survival rate. They have a unique skill - they can automatically match the ASN number of the target site, in short, it is to make the platform think that you areLocal real usersIn access. This is a feature that you really haven't seen in other homes, it's kind of an industry black art.
Lastly, I would like to remind you that there are millions of data collection rules, but the first rule is to follow the rules. Don't catch a platform to the death grip, reasonable set collection frequency is the way of the long term. When you encounter a platform that is particularly difficult to handle, it is recommended that you go directly to ipipgo's customized solution, which is much more worrying than tossing by yourself.

