Teach you to Scrapy to install a smart faucet Crawler brothers should have encountered the site blocked IP embarrassment, right? It's like when the water suddenly stops running in your house, and you can't do anything. If you can install a smart faucet (proxy IP pool), you can switch the water source at any time, that's great! Today we will talk about how ...

Teach you how to use Node.js to do high concurrency collection What is the most afraid of data collection? IP blocking! Especially when you need a large number of requests, a single IP will be blacked out by the website in minutes. This time we have to use a proxy IP to share the risk, just like opening a chain of stores in different locations to open a branch of the same reason. Let's take Node.js...

How low is the threshold of zero-code crawler? First look at this real car case Last year, an e-commerce friend wanted to monitor the price of competitors, their own tossing Excel table to the middle of the night, the results of the next day to find the data all messed up. Later he tried a zero-code tool, did not pay attention to the proxy IP settings, just run half an hour on the...

This may be the most worry-free Python crawler template you've ever seen The old iron of crawlers understand that the biggest headache is IP blocked and CAPTCHA interception. Today we do not talk about false, directly on the solution can run through. First of all, I would like to say a real case: last week there was a price comparison system brother, with the ordinary crawler half an hour on the ...

Teach you how to drain the memory of the headless browser Friends engaged in data collection must have encountered this situation: using Puppeteer or Playwright to climb the JS rendering of the page, running and running memory will burst. Especially the need to run for a long time to collect the task, not moving to give you a memory leak warning. ...

Browser fingerprinting is the biggest headache for crawler engineers Those who are involved in data collection should have stepped on this pit - obviously changed IP, cleared cookies, but the target site can still accurately identify the crawler. This thing is eighty percent of the browser fingerprints cause trouble, especially Canvas and WebGL, the two hardest hit areas. Just as you go ...

Why are you always stuck in the first step of CAPTCHA recognition? Friends engaged in machine learning know that practicing with MNIST dataset is like eating instant noodles - simple and fast, but not nutritious. The real scene of the CAPTCHA will be deformed, add noise, background interference, you will find that the trained model with a...

When the API error 407/429 when your proxy IP may be out of the problem Recently, many brothers with residential proxy ran to ask, tuning the interface does not move to return 407, 429 these ghost code, do not know how to deal with. Today we will take ipipgo real user cases, hand in hand to teach you to troubleshoot these pitiful problems ...

First, the cold start cartwheel site: the crawler has not worked on the blocked how to do? Newbies who have just built a distributed crawler often encounter this kind of embarrassment: the script has not been running for half an hour, the target site dumped over the 403 blocking tips. It's like just entering a casino and being taken out by the security guards, and the chips in your hand are not used up. This time the agent ...