Web Crawler Collects Data|Enterprise API Interface Service

This is probably the most straightforward guide to avoiding proxy IPs

Dry crawler old iron should understand, engaged in data collection is most afraid of encountering three situations:IP is blocked, speed is stuck like a dog, data is misplacedThe first thing I want to do is to get the information from the server. Last year there is an e-commerce friend, monitoring peer price was identified when the crawler behavior, directly leading to the server IP was permanently blacked out, and now I think of it still meat pain.

This is the time to move out of the proxy IP this magic weapon. A lot of service providers on the market blow proxy IPs out of proportion, but if you've used it, you know thatResidential IP Quality > Server Room IP > Free IPThis chain of contempt is real. Take ipipgo, their residential IPs are mined from real home networks, which are harder to recognize than server room IPs, and are especially suited to scenarios that require stable collection over time.

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

Here's a quick drawing for newbies:

- Survival time:Dynamic IP is recommended to choose 3-10 minutes to change, static IP depends on the renewal success rate
- Protocol support:Must support at least the HTTP/HTTPS/SOCKS5 trio
- Location:It has to be specific to the city level for the positioning to be accurate enough

Having tested ipipgo's API interface before, there's one feature that's particularly useful - theIP Survival Time PredictionThe algorithm can tell you 5 minutes in advance how long the current IP can be used. Their algorithm can tell you 5 minutes in advance how long the current IP can still be used, this is simply a plug-in in the robocrawler, can effectively avoid the order to half of the IP suddenly dropped embarrassment.

How exactly do you choose a dynamic static IP?

To the guys to give a real case: a travel price comparison site needs 24 hours to capture flight data. Beginning with dynamic IP, change 200 times per hour IP, the results of one day suddenly have 30% request return 403 error. Later cut to ipipgo static long-lasting IP, with the request frequency control, stable run for three months without overturning.

Here is a tart operation: the ipipgo dynamic and static IP mixed use. For example, the core data with a static IP to ensure stability, peripheral data with a dynamic IP rush speed, so that both cost savings and not easy to trigger the wind control.

The Hidden Playbook of Enterprise API Interfaces

A lot of companies only know how to use proxy IPs for basic acquisition, when in fact, high level players are playing with these:
1. IP Quality Profiling: Labeling IPs by Historical Success Rate
2. Intelligent Routing: Automatically match the best export IP according to the target website
3. Protocol artifacts: disguise crawler requests as normal browser behavior

Recently, I helped a financial company remodel its data system, and used the ipipgo API to make aDual Channel Disaster Recovery. The main line uses U.S. residential IP to catch public data, and the backup line goes to German static IP, so even if it encounters regional blocking, it can still be switched seamlessly, which is more than one order of magnitude more stable than the single-line solution.

A must-see QA session for the little guy

Q: Why do I still get blocked even if I use a proxy IP?
A: 80% of the IP pool is too small or there is a problem with the switching strategy. ipipgo's 90 million + residential IP pool, with their intelligent rotation algorithms, basically does not appear to duplicate the IP bump.

Q: What should I do if I need to manage IPs from multiple regions at the same time?
A: directly call ipipgo geo-location API, which city you want to fill in the parameters of the IP coordinates, you can also set up automatic switching between neighboring cities, pro-tested than the manual management efficiency to enhance the 70%.

Q: What should I do if the HTTPS request always reports an error in the certificate?
A: It depends on the degree of protocol support of the proxy service provider. ipipgo full protocol support is not blowing, their intermediate certificates are updated in a timely manner, basically there will be no SSL handshake failure.

To be honest, the choice of proxy IP service is like looking for a partner, just look at the looks (surface parameters) can not, but also have to look at the family background (resource reserves) and the ability to adapt (technical services). I've used seven or eight service providers, and finally used ipipgo for a long time or because of theirFast technical support responseThe last time I raised a work order at 3:00 a.m., I received a call from a technician in ten minutes, and only then did this service dare to pile into the production environment.