Using CAPTCHA for spam protection
A CAPTCHA is a test to tell wether a user is human or a robot. It allows to protect web sites from robot intrusion, while allowing human users to navigate the site normally. In this post we will scope...
View ArticleWhy are JavaScript CAPTCHAs not reliable?
While we did our CAPTCHA TEST DRIVE we realized that those JavaScript captchas we used for testing (like QapTcha and AJAX FANCY CAPTCHA) can be easily bypassed by sending a couple of simple POST...
View ArticleTEST DRIVE: CAPTCHA
The new Scraper Test Drive stage is on, called CAPTCHA. What can the scrapers perform to get through the “robot fighters”? The off-the-shelf scrapers are not designed for CAPTCHA solving by default....
View ArticleDeCaptcher Review
Recently we came across a CAPTCHA solving service called DeCaptcher. As we proceed with the new Scraper Test Drive stage, we have encountered some off-the-shelf scrapers that use a 3rd party service...
View Article8 best de-CAPTCHA solutions
In this post we want to share on CAPTCHA solving software and services that we have encountered in our web scraping experience. The CAPTCHA solving algorithms and therefore services and software split...
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