Why do CAPTCHAs keep coming back to haunt you?
Old iron people must have encountered this situation: login account, grab goods, suddenly popped up a verification code, anxious to drop the keyboard! In fact, the root cause of CAPTCHA isSingle IP access too oftenThe backstage of the website is like a gatekeeper. The backend of the website is like a janitor, seeing the same face frequently in and out, surely to check ID ah!
As a chestnut, an e-commerce platform sets the5 visits per minuteThe threshold. If you use your own broadband to frantically refresh the page, it will trigger the CAPTCHA in less than ten minutes. If you switch to a proxy IP, it's like changing your face every time you enter or exit, and the doorman won't remember you at all.
普通访问（作死模式）
for i in range(20):
requests.get("https://xxx.com")
触发验证码的概率：100%
使用代理IP（机智模式）
proxies = ipipgo.get_proxies() 获取ipipgo动态IP池
for i in range(20):
with requests.Session() as s:
s.proxies = {'https': proxies[i%10]} 每10次请求切换IP
s.get("https://xxx.com")
触发验证码的概率：0%
The tawdry operation of dynamic IP rotation
ipipgo's Dynamic Residential Proxy has a pool of 90 million + IPs, more than the population of the country! Here are three useful tips to teach you:
① Step delay switching
Don't be silly to change IP every second, try this rhythm: the first 5 times with a 30-second interval, 6-10 times with a 15-second interval, 10 times directly after the switch to a new IP. this not only ensures efficiency, but also let the site feel that it is a "normal human" in the operation.
② Geographic drift method
Setting in the ipipgo backendIP drift radius. For example, when doing national business, first choose Beijing IP, 10 minutes later cut to Tianjin, and then after half an hour change to Shijiazhuang. The website sees the IP move within a reasonable range, but will feel that it is a normal user.
③ Browser fingerprint disguise
It's not enough to just change the IP, remember to work with these parameters: Don't think that static IPs can only be used for long-term hang-ups! ipipgo's static residential proxy has a hidden feature:IP reputation value cultivation. Pick a clean U.S. IP and do these things with it every day: After sticking around for 3-5 days, this IP will be labeled asHigh Reputation Residential IP, which is then used for sensitive operations, the CAPTCHA trigger rate drops straight to 70%! Recently, when I helped a client to do the airfare comparison project, I found a metaphysical phenomenon: even if I used a proxy IP, the website of a certain airline company still popped up the CAPTCHA madly. Later, I used ipipgo'sIP Quality Inspection ToolOnly then did I realize that the problem was with these fields in the HTTP header: Switch to ipipgo.Highly anonymous proxy modelAfterward, all sensitive headers were automatically cleaned up and the frequency of CAPTCHA appearances dropped from 20 to 2 per hour. Q: How do I choose between dynamic and static proxies? Q: What should I do if my IP is blocked? Q: Why do I still get a CAPTCHA after using a proxy? Finally, I'll share a crushing trick: use ipipgo'sCity-level positioningfeature that links the IP switching tempo to the real transportation time. For example, an IP that cuts from Shanghai to Hangzhou should be at least 1 hour apart (high-speed rail travel time), which is more in line with human behavioral characteristics than random switching. To cite a real case: after a customer used this method, the CAPTCHA triggering interval of a ticketing system was extended from 15 minutes to 6 hours, and the average daily ticket-snatching success directly doubled by 8 times! Now their team has packaged ipipgo's Enterprise Edition package, specializing in this kind of refined IP management.
parameters
recommended value
User-Agent
Replacement every 5 times
screen resolution
Retain 3 common configurations
time zones
Follow the proxy IP location
Another great use for static IPs
A practical guide to avoiding the pit
X-Forwarded-For: 1.1.1.1 Error! Original IP exposed
Via: proxy-server error! Proxy used
Connection: close error! Should have kept the connection long
Frequently Asked Questions QA
A: dynamic (standard package) for snatching seconds, and static (enterprise package) for raising hang-ups. If you do data collection, it is recommended to use dynamic IP in the morning and cut to static IP at night.
A: Immediately stop current operations and submit in the ipipgo back officeIP unblocking work order(Response speed is 30% faster than competitors). At the same time, turn on the automatic switching mode and set the IP to change every 50 requests or 3 CAPTCHA triggers.
A: Check these three points: 1) whether the IP pool size is enough 2) whether the User-Agent has been replaced synchronously 3) whether the mouse movement track is too regular. It is recommended to turn on ipipgo'sIntelligent Behavioral Simulationfunction that automatically generates human operating trajectories.Special Tips and Tricks
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