Captcha tests, which have become more and more common in recent years, you must be filling out in some way almost every day. Thanks to captcha, a program designed to protect websites against bots, when you log into a website, it is proven that you are a real person. Because the questions in the captcha tests consist of questions that computers cannot answer, but that people can easily answer.
What is Captcha?
Developed for the security of websites, captcha is a very effective solution used for prevention against bots. Captcha plugins consist of tests that humans can easily solve but computers cannot. For example; When a person examines a picture in the test, he can easily interpret and give the correct answer. Since computers do not have such a capability, they cannot interpret and choose the right option.
The word captcha does not have a direct dictionary meaning. Captcha, short for a long phrase such as Completely Automated Public Turing test to tell Computers and Humans Apart, was designed in 2000 by Luis von Ahn, Manuel Blum, Nicholas Hopper, and John Langford. These tests, which can be easily downloaded from the Internet, can be easily used by people to prevent bots on their websites.
Especially when you sign up for a site or perform a new transaction on a website, you encounter very simple tests that you have to solve. All of these tests are not actually tests that affect the end user for any purpose. Almost all of them are used for the security of the site and for the statistical data to be realistic.
Therefore, you do not need to hesitate to solve these captcha tests when entering a website, registering or doing similar actions. Between these tests, which will take only a few seconds, you can both contribute to the security of websites and contribute to the regulation of the digital world, which has turned into a complex environment due to bots.
Where is Captcha Used?
Implemented as a security measure for websites, captcha can be used for various purposes. Captcha, which is used to block bots that are malicious software and damage sites, blocks all mechanical applications as it consists of tests that can only be passed with human will. It also makes a great contribution to site statistics.
Because it blocks more fake logins than people can enter, only real user logins are allowed, and accordingly, the site owner receives only accurate and realistic site statistics. Therefore, it can be said that the statistics of a site with a captcha test are much more realistic. Of course, captcha is used in many more areas.
While one of them is a blog, entries made to blogs as spam can also be blocked. Captcha is also used to prevent spammy comments in order to rank higher in search engines. Thanks to captcha, which makes it possible to comment on blogs without being a member, it is proved that the commenters are real people and unfair competition in digital environments can be prevented to a certain extent.
It is also frequently used in captcha website memberships. Sometimes websites have millions of members. Thanks to these numbers, it can be unfairly ranked at the top of the search engines. When the Captcha application is used, the real and correct number of members of the sites can be revealed, as the members prove that they are real people.
Another area where real people are needed is surveys. Virtual surveys are sometimes used to conduct public opinion polls. However, since data from real individuals is needed, especially in surveys, bots that are automatically filled by the system and shadow the results can be blocked. Using the Captcha application, users can prove that they are real people and fill out the survey.
Of course, captcha usage areas are not limited to these. For example; Captcha tests can be applied to protect from encrypted login bots, to protect from worms or spam, and to block search engine bots. Therefore, if you want to prevent bot infestation on your personal website or venture, you can place a captcha test on your site in a very practical way.
If you want to add a captcha application to your personal website, you do not have to stick to a single test type. You can download a captcha test that you think will fit your site in terms of appearance and usability and integrate the project into your website immediately. Do not worry; All tests have similar effect and are easily solved by humans.
In addition, in some captcha tests, it may not be possible to pass the word correctly, especially in tests with letters that are difficult to read and written in a blurry way. In such cases, of course, the captcha application does not completely prevent you from entering the site or commenting. If you think the test is too complex to be solved, you can request a new test by pressing the refresh button on the side of the question.
Captcha Types
When you think of a captcha test, you should not think of a uniform test. There are various captcha tests that site owners frequently use. There are different types of captcha tests that are increasingly used, asking questions to identify numbers, fields or images. You, too, “Choose pictures that include the front of a shop.” or “Choose pictures with street signs.” You may have come across captcha tests that require image confirmation.
In addition to tests that require this type of image to be selected, there are also test types that require a certain area to be triangular. Thanks to all these methods, processes that computers cannot do using bots, but are actually very easy for humans, easily distinguish real people from bots. The most important feature of captcha tests is that they do not contain a problem that cannot be done with human will.
RECAPTCHA
Recaptcha is usually designed to block spam access to websites. In these tests, the user is asked to write random, hard-to-read and fluffy texts in the box. When the correct answer is written in the box, the verification process takes place by the system.
SQ-PIX
In this captcha test, users are given 3 pictures and the user is asked to scribble all the correct pictures in the question. Thanks to these systems, which usually require the scribbling of relevant pictures, it is easily understood that real users are logged into the system.
ESP-PIX
In Esp-pix captcha tests, users are given four pictures this time and they are asked about the common subject of these pictures. If the correct answer is given, it is easily confirmed that the people logging into the system are real people, not bots.
