Dynamic Reverse Proxy Service: Intelligent Scheduling and Resource Management for Distributed Web Crawlers

What to do when a crawler hits an anti-crawler mechanism?

Do data collection of the old iron must have encountered such a situation: yesterday was a good crawler script, today suddenly the target site pinched the neck. At this time, if you don't want to be treated as a malicious attackDynamic Reverse Proxy ServiceIt's your saving grace. This thing is like wearing a thousand-face mask to the crawler, every request for a new face, so that the site simply can not feel your true identity.

Take our common e-commerce price comparison scenarios, the same IP repeatedly check the price of iron will trigger the alarm. If you use ipipgo's residential proxy pool, each request automatically switches to a different region of the real home IP, like letting the site think that it is Zhang San Li Si Wang Wu in different cities to check the price, both to get the data and will not be shut down in the dark room.

What's so smart about an intelligent dispatch system?

A mistake many newbies tend to make is brainlessly rotating IPs, which ends up exposing them faster. Truly intelligent scheduling has to be learned(dialect) treat sb according to their social status, relationship with them etc::

ipipgo's scheduling system has a masterpiece, according to the response speed of the target site automatically adjust the switching rhythm. Like an old driver driving, the fast time to step on the gas to the end, the slow time to know the brakes, this dynamic balance is the key to a lasting war.

How do you manage 90 million IPs without scratching your head?

Clutching a huge amount of IP resources in your hand is not the same as knowing how to use them, which is just as embarrassing as giving you a key to a warehouse but not knowing where to put things. Resource Managementlit. check three times and match three times (idiom); fig. to make sure that everything is right::
1. Check IP survival status (don't use invalid ones)
2. Check regional distribution (don't bunch up with same-city IPs)
3. Check for protocol matches (don't use http proxies to access https)

ipipgo's backend management system acts like an intelligent housekeeper, automatically labeling each IP'sfreshness(Time of last use),healthiness(Success rate),GeotaggingFor example, if you need to collect a certain local website, you can directly select the area on the map. For example, if you need to collect a local website, directly on the map box select the area, the system automatically assigns the freshest local residential IP, which is much stronger than the headless fly like bumping around.

A practical guide to avoiding the pit

Seen too many people fall into these pits:
- Using data center IP as residential IP (too obvious a feature)
- Single IP concurrency set too high (self-destructive trucking behavior)
- Ignore cookie fingerprinting (changing IPs without changing cookies is the same as not changing them)

This is the time to brag about ipipgo'sFull Protocol Support, regardless of whether they go socks5 or https, they can automatically synchronize to clear the history traces. Especially their dynamic residential IP, each switch with complete information about the home network environment, more like a real person on the Internet than ordinary proxies.

QA First Aid Kit

Q: What should I choose between dynamic and static proxies?
A: Need to maintain the session for a long time (such as the login state) with static, a large number of high-frequency requests with dynamic. ipipgo can support both, it is recommended to use the dynamic mode first to test the water.

Q: What should I do if my IP suddenly fails?
A: Don't panic! ipipgo has a real-time monitoring system and will automatically kick out the problem IP when it finds lag or timeout, and the replacement IP will be able to top it up within 0.5 seconds.

Q: How can I solve the problem of too high latency on domestic websites?
A: Check the box in the ipipgo backendIntelligent Route Optimization, the system automatically selects the node that is physically closest, which is more than three times faster than manually picking an IP.

Engaging in data collection is like fighting a guerrilla war, choose the right weapon in order to both save strength and complete the task. The next time your crawler is targeted, you may want to try this combination of punches, with ipipgo's global IP resource pool, safe to let those anti-climbing mechanism can not find the north.