AI Crawler: A Platform for Intelligent Parsing of Dynamic Web Pages

When crawlers meet dynamic web pages, it's time to upgrade your tools!

Engaged in web crawling friends understand, now many sites like Taobao, Zhihu these, page elements load more and more complex. Do you think you can get it done with an ordinary crawler? Open developer tools to see the data is not in the HTML source code, all dynamically generated JavaScript. This time you need to be able toIntelligent parsing of dynamic contentThe AI crawler tool, but it's not enough to have the tool...

Why is your crawler always blocked?

Recently there is an e-commerce comparison of friends and I spit: he spent a lot of money to buy the crawler system, the beginning of the use of good, the results of three days on the blocked IP. later found that the site are now learning fine, in addition to the CAPTCHA will also be detected in the access characteristics. For example:
1. Dozens of consecutive visits to the same IP page
2. Too regular an interval between visits
3. Request headers too "clean"
This time you need to put the crawler "cloak" - proxy IP to disguise as a different user access.

The right way to open a proxy IP

There are many proxy IP service providers on the market, but it is important to choose the right type:

Here's a recommendation for the one we use the most.ipipgo proxy serviceThe family has a specialty--Intelligent mixing of IP types. For example, the first 10 times with a residential IP to obtain the login state, and later cut to the data center IP batch collection, so as to ensure the success rate and control costs.

Real-world example: capture dynamic price data

Take an e-commerce platform for example, their prices are hidden in JavaScript scripts. Our configuration scenario:
1. Created in the ipipgo backendboredom tunnel(1 IP change every 5 requests)
2. Add a random wait time (0.5-3 seconds) to the crawler script.
3. After loading the complete page with a headless browser, let the AI tool recognize the price tag
This program has been tested to run continuously for 72 hours without being blocked, which is 8 times more efficient than the previous single-IP collection.

White Frequently Asked Questions QA

Q: Does proxy IP slow down the speed?
A：好的服务商会做线路优化，像ipipgo的BGP线路基本能做到<50ms，比自家宽带还快

Q: What should I do if I encounter a CAPTCHA?
A: ipipgo'sCaptcha Alert FunctionIt will be detected in real time and automatically switch IP when encountering the verification page, which is more than 10 times faster than manual processing.

Q: Do I need to maintain my own IP pool?
A: No need at all! Their pool is updated daily with 20%IP, and they can also customize exclusive IP segments by industry, and we bought securities IPs separately if we do financial data

Don't step on these potholes.

A few final bloody lessons:
1. Don't buy a shared IP for cheap, nine times out of ten it's used.
2. Dynamic web page collection must be with the rendering tool, simply change the IP is useless!
3. Don't rush to add threads when you encounter IP blocking, first check whether the User-Agent is randomized or not.
Suggest newbies go straight to ipipgo'sFully hosted programThe technical customer service can help you with a good set of anti-blocking strategy, than their own toss to save a lot of heartache.

In fact, dynamic web page collection is not as difficult as imagined, the key is to use the right combination of tools.AI crawler is responsible for parsing the content, reliable proxy IP to solve the access problem, the rest is to adjust the strategy parameters. Recently found ipipgo background addedFlow fluctuation alarmThe function can automatically optimize the IP allocation scheme, which is especially useful for those who need to run data for a long time. If you guys are also suffering from dynamic webpage collection headache, you might as well try this combo.