Whois & Analysis for 2captcha.com

A CAPTCHA (a backronym for "Completely Automated Public Turing test to tell Computers and Humans Apart") is a type of challenge-response test used in computing to determine whether or not the user is human.

In computer programming, an Application Programming Interface (API) is a set of subroutine definitions, protocols, and tools for building application software.

In general terms, it is a set of clearly defined methods of communication between various software components.

A good API makes it easier to develop a computer program by providing all the building blocks, which are then put together by the programmer.

Computer vision is an interdisciplinary field that deals with how computers can be made for gaining high-level understanding from digital images or videos.

From the perspective of engineering, it seeks to automate tasks that the human visual system can do.

Educational technology is defined by the Association for Educational Communications and Technology as "the study and ethical practice of facilitating learning and improving performance by creating, using, and managing appropriate technological processes and resources".

A web service is a service offered by an electronic device to another electronic device, communicating with each other via the World Wide Web.

In a Web service, Web technology such as HTTP, originally designed for human-to-machine communication, is utilized for machine-to-machine communication, more specifically for transferring machine readable file formats such as XML and JSON.

In practice, the web service typically provides an object-oriented web-based interface to a database server, utilized for example by another web server, or by a mobile application, that provides a user interface to the end user.

Another common application offered to the end user may be a mashup, where a web server consumes several web services at different machines, and compiles the content into one user interface.