websites use captcha

Chapter 4 scrapy crawls well-known Q & A websites and Chapter 4 scrapy Crawlers In chapter 5, it seems that the practice project in Chapter 4 is nothing more than a simulated logon. The records are recorded in different sections and the knowledge

When logging on to many websites, they no longer use simple English and digital verification codes. In order to prevent attacks by disgusting registration and group-sending software, they are now using Chinese verification codes.Today, we will share

PrefaceOn the face of it, JMeter seems to have little to do with this series of courses, but it actually plays an important role in many of the later scenarios: how do you know if you've modified some code or settings to improve or decrease the

Article Walker link: http://www.cnblogs.com/rgbw/archive/2012/12/26/2834567.htmlVerification Code of yesterday, today and tomorrowWhy use a verification codeWithout a verification code, an attacker would use unwanted programs to automatically

A month ago, I tried to use python to implement a simple douban. fm client. I plan to gradually improve it into a replacement for the douban. fm client of the web version in Ubuntu. But since... A month ago, I tried to use python to implement a

Verification Code yesterday, today, and tomorrow Why use the verification code? Without a verification code, attackers can use harmful programs to automatically register a large number of Web Service accounts, and then attackers can use these

Most blog websites do not set the user logon function. If no verification code mechanism is added to the form, you will be waiting for spammer to launch a crazy attack. I once suffered a big loss: on average, a previous website had dozens of spam

In Web development and design, everything is not a good thing. We are often warned not to reinvent the wheel "child" (don't reinvent the wheel ), large-scale and comprehensive development is not only a huge burden, but also brings more security

This article is from my upcoming ASP. NET AjaxProgramDesign the I-volume Server ASP. NET Ajax extensions and ASP. NET Ajax Control Toolkit (tentative name) Chapter 10th section 1st. Please give your suggestions and comments. 10.1Nobot: Reject

A joke about verification code What is a verification code "Verification Code" (CAPTCHA) in fact, not everyone is always seen on different websites of the illegible letter combination pronoun, but "fully automatic distinction between computer and