Captcha bypass: types and services for automatic solutions



Captcha (Completely Automated Public Turing test to tell Computers and Humans apart) is a mechanism used on websites to check whether a user is human or a bot. However, with advances in technology, there are ways to automatically bypass the captcha, which has become a challenge to protect websites from automated attacks. In this article, we will look at different types of captcha circumvention and services like that offer automatic captcha solution.

1. Types of captcha traversal:
(a) Optical Character Recognition (OCR): This method uses machine learning algorithms to read and recognise characters in an image. OCR techniques can successfully bypass simple text captchas.

b) Image-based solution: Some captchas require the user to select specific objects or images. Automated scripts can use computer vision algorithms to analyse and select the correct items.

c) Mechanical Touring Test: This method requires performing a task that is simple or difficult for a computer, but simple enough for a human. An example would be a 'drag and drop' task or solving a simple mathematical equation.

2. Services for automatic captcha circumvention:
One popular service offering automatic captcha solving is This service offers an API that allows developers to integrate it into their applications and scripts. uses a combination of OCR, image analysis and human labor to bypass different types of captchas.

Services like work as follows: when a script or app encounters a captcha, it sends an image or other data to the server. The person running the 2captcha platform then solves the captcha either manually or using special software. software. The result is then sent back to the script or application, which can continue its automated work.

Captcha traversal is a constant battle between developers and attackers. While captchas are designed to protect against automated attacks, services such as offer an automated captcha solution that can be used for both legitimate and illegitimate purposes. It is important to remember that the use of such services must be legitimate and these services can also be used for legitimate tasks related to captchas on websites.