CAPTCHA cracking stuff: why do you always say you're a robot?
Yesterday, an e-commerce friend complained to me, said they engaged in a spike activity when the CAPTCHA system blocked the real users of 70% to 80%, so angry that the boss to lift the table. This is not uncommon, now the site anti-creeper are bewildered, even normal users are not spared. Let's nag today, how to use the proxy IP key to unlock the serial lock of the verification code.
Where the three types of CAPTCHA hit
Let's start by breaking down the big three for the guys to understand CAPTCHA:text-basedIt's like the grandpa at the end of the alley who makes you recognize crooked letters;point-and-clickIt's like looking for a product in a supermarket and having to pick a specific object from a bunch of diagrams;Slider ValidationIt's the most cockamamie, and it's like playing Hwa Yung Do to be aligned to the gap.
typology | Recognizing the Difficulties | Cracking the key |
---|---|---|
text-based | Font distortion/adhesion | OCR accuracy + semantic association |
point-and-click | Image element interference | Image Recognition Algorithms |
Slider Validation | Trajectory monitoring | Motion Trajectory Simulation |
Proxy IPs are the secret sauce.
A while ago, there is a brother doing data collection, using their own office network to engage in CAPTCHA recognition, as a result, the next day the IP was blacklisted. This is the time to offeripipgoThe masterpiece of their dynamic IP pool can make you change your identity like a Sichuan opera face, the site simply can not feel your way.
Let's talk about a true story: after a certain ticketing platform used ipipgo's residential agent, the CAPTCHA recognition rate went from42% to 78%.The secret is that their IPs are used by real people. The secret is that their IP are real people have used the "familiar number", the site system looks like a normal user in the operation.
Practical Configuration Guide
Here's a wild card for you: set the ipipgo proxy in your code to change IPs every 5 requests, like this (as an example):
Here's the pretend code proxy = ipipgo.get_proxy(rotate=5)
Be careful to chooseLong-lasting static IPDo the login session withdynamic IPRun a specific operation so that it is not easy to trigger the wind control, but also to ensure that the operation is consistent.
Guide to avoiding the pit (QA session)
Q: Why are you still recognized after changing your IP?
A: 80% is used in the data center IP, this kind of IP segment has long been recorded in the small book by the website. ipipgoResidential AgentsIt's all home broadband IPs, the same as real people surfing the web.
Q: Do I need to maintain my own IP pool?
A: Don't! ipipgo has a ready-made pool of 50 million+ IPs, which saves you a lot of trouble compared to tossing your own. They also have a smart routing feature that automatically avoids tagged IP segments.
Q: What should I do if the slide verification always fails?
A: Two tricks: 1. Use ipipgo'slocation bindingFunction fixed city IP 2. Slide trajectory should be with a little random fluctuation, don't whole too mechanical.
Let's get real.
Nowadays, proxy services on the market are mixed, and some small workshops have IPs that are dirtier than the food market. Those who have used ipipgo know that their homeIP purity testingDoing a thief's work, each IP has to pass five hurdles before going live. Recently there is also a new user benefits, register to send 5G traffic package, enough for you to test the majority of the month.
The last nagging sentence: CAPTCHA recognition is not more than who is technically cow, but who is more like a real person. Use a good proxy IP this "cloak of invisibility", with the appropriate operating rhythm, in order to be in this cat and mouse game to the last laugh.