Advantages And Disadvantages Of Using Captcha

[crebo]

Captcha isn't all that successful at stopping spam and sometimes it is hard to read. I find questions and answers are better at blocking the bots.

 

[arsalan1101]

The main Advantage is that it prevents or reduces the level of automated (bot) signups that occur as spamming.
Disadvantage of using a captcha is that it can users away, especially if the captcha is overly difficult or annoying.

 

[rose124]

Hello, I usually use Re-captcha for my website just to fight against spamming through comment posting. Thanks

 

[PariJain]

A CAPTCHA is a type of challenge-response test used in computing to determine whether or not the user is human. Advantages are:
1. The main advantage of CAPTCHAs is to help limit spam.
2.CAPTCHAs are also very easy to implement or add to an existing website.

Disadvantages are:
1.CAPTCHAs are not even readable to people.
2.When a website first starts using CAPTCHAs, they notice a considerably drop in traffic.

 

[zozoreview]

Captcha is a way to differentiate between an automated computer program and a human. It is a box with distorted text that must be deciphered in order to enter free email services, online polls, and to complete online purchases.

Advantages:
Distinguishes between a human and a machine
Makes online polls more legitimate
Reduces spam and viruses
Makes online shopping safer
Diminishes abuse of free email account services
Disadvantages:
Sometimes very difficult to read
Are not compatible with users with disablilities
Time-consuming to decipher
Technical difficulties with certain internet browsers
May greatly enhance Artificial Intelligence