View Full Version : what is captcha
adrielalfredo34
09-13-2012, 02:32 AM
Here, the image is placed in which submitted a write to a given frame, or further.
bonzoi
09-24-2012, 02:46 AM
A CAPTCHA is a program that can generate and grade tests that humans can pass but current computer programs cannot.
friv4mini
09-25-2012, 01:45 AM
Thanks for sharing. I thinks i need it for my site
earvintrenton
09-25-2012, 03:28 AM
What is the weirdest or most offensive captcha you have received?
sandeep22
09-25-2012, 10:57 AM
Thanks for your suggestion friends, I am still waiting for more suggestions.
crescendo
09-25-2012, 02:41 PM
A CAPTCHA is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a person
jamsen
10-04-2012, 12:39 PM
A CAPTCHA is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a person.
chugtairizwan
10-05-2012, 09:35 AM
Hey ! According to me Captcha is something which was created to stop automated computer spam robots from filling out forms, harvesting email addresses and other..
amybruce
10-06-2012, 08:45 AM
now i know what is captcha
thank you all
kevin619
10-08-2012, 02:34 AM
A CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a challenge-response system test designed to differentiate humans from automated programs. A CAPTCHA differentiates between human and bot by setting some task that is easy for most humans to perform but is more difficult and time-consuming for current bots to complete.
webmaster3388
10-08-2012, 07:04 AM
Captcha is one type of a challenging quiz which is used to stop automatic submissions by some black hat softwares or some robots. I think captache is a paid algorithm. So you have to pay for it to place it in your site.
ashokkumar
10-08-2012, 07:14 AM
Captcha prevent robot registration.It check visitor is human or not.
Elanaz
10-08-2012, 08:35 AM
A Captcha code is a type of challenge or response or test used in computing as an attempt to ensure that the response is generated by a person. The process usually involves a computer asking a user to complete a simple test which the computer is able to grade.
sydneyrebello2
10-27-2012, 12:34 AM
To upset the attempts of the spammers the term Captcha is used. An image is put in here which has to be written on a given box before submitting something or proceeding.
Anne Shirley
10-27-2012, 01:52 AM
I think CAPTCHA is a type of challenge used in computing to ensure that the response is not generated by the computer or we can say that it is an image that generates some numerical and alphabetical code and some time its called reverse tuning test.
Beyb827
10-29-2012, 08:29 AM
The term CAPTCHA (for Completely Automated Public Turing Test To Tell Computers and Humans Apart) was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas Hopper and John Langford of Carnegie Mellon University. At the time, they developed the first CAPTCHA to be used by Yahoo.
tnhamanda
10-30-2012, 10:35 AM
Hello,
For non spam verification CAPTCHA does a good work. But it needs some softwares like GD, imagemagic, freetype to work correctly from server. It also depend upon the OS type you are using for your site.
fonsecasharon
10-31-2012, 02:03 AM
yep, catcha is made to stop automated spammers on entering your websites :)
JasmineRice
11-01-2012, 02:17 AM
The word of CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. CAPTCHA is a program that protects websites against spammers by generates and grade tests that humans can pass but current computer programs cannot. Also CAPTCHA is a very good secure for users from spam bots.
lennonrowen
11-01-2012, 07:47 AM
A Captcha is a type of challenge-response test used in computing to ensure that the response is not generated by a computer.. The process usually involves a computer asking a user to complete a simple test which the computer is able to grade. These tests are designed to be easy for a computer to generate, but difficult for a computer to solve, so that if a correct solution is received, it can be presumed to have been entered by a human.
mageworld123
11-06-2012, 04:05 AM
i think this link can considerably help you deal with this problem: https://kb.wisc.edu/cae/page.php?id=8232
AvaGray
11-07-2012, 04:35 AM
Captcha means Completely Automated Public Turing test to tell Computers and Humans Apart. It is a challenging test to ensure that the response is only generated by human and not by computer. Captcha protect websites against spammers
virtueinfo11
11-07-2012, 06:00 AM
@Oracle Thanks for you infomatic post all most folks talking about CAPTCHA feature and how to use but you are great you define all the thing..
Thanks
johncruze
11-07-2012, 08:05 AM
hello friends, can any body tell me about captcha. And can any body help me how to put it in my website. thanks for help...
CAPTCHA is a tool that validates that form and the fields data entered in it is coming from a real person and not something automated.
to install it on your website go to : captcha.net and sign up, once sign up, they ill give u API key, after that download the captcha script as zip file and use that script any where you want... Thanks
ahsanabrar
11-15-2012, 01:58 AM
Captcha is a verification code when we are submitting or registering our self on a website.This is for block spamming or spammers.
graphics art
11-18-2012, 03:29 AM
CAPTCHA is the way to insure your site not used by some kind of software or else reboots.
mattdamon
11-19-2012, 01:34 AM
Captcha is used for controlling the spammers. You can get captcha code from php at a low cost.
dotnetcreator
11-26-2012, 03:06 AM
A CAPTCHA is a program that can generate and grade tests that humans can pass but current computer programs cannot.
mitapaul16
11-26-2012, 04:42 AM
A CAPTCHA is a program that defends a websites against spiders by producing and rating assessments that people can pass but existing applications cannot. For example, people can read distorted text, but current computer applications can't.
robinpeterson12
12-14-2012, 12:24 AM
Captcha is a system through which it can be verified that whether human is their or there is any automated robot doing the text entries or directory submission.
It is a techniques used by most of the form submission sites to secure from automatic submission ,or prevent the form submission rules by any automated submission tool.
introspective12
12-15-2012, 04:22 AM
It is a program that can grade tests that human can pass. A CAPTCHA is a type of chalange responce test used in the computer.
Repfixer
12-19-2012, 07:24 AM
A Captcha is a type of challenge-response test used in computing to ensure that the response is not generated by a computer.
abhirampathak3
12-21-2012, 01:03 AM
CAPTCHA or Captcha (pronounced as cap-ch-uh) which stands for “Completely Automated Public Turing test to tell Computers and Humans Apart” is a type of challenge-response test to ensure that the response is only generated by humans and not by a computer.
johnsmith965
12-28-2012, 01:00 AM
In a CAPTCHA test (an acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart," also sometimes spelled in lowercase), an image of letters is dynamically generated. The letters, because they're part of an image and not text (e.g. text that you could cut and paste), are difficult for a spambot or other computer program to read. Yet, a person has little trouble reading the letters in a captcha image.
Using a captcha test on a website is a great way to ensure, for instance, that a person and not a spambot is filling out a web form. Also, a captcha can make it difficult for a person to continuously resubmit form information and overwhelm the form's purpose.
Thanks for this nice information....
Can you tell me that how can i create captcha in php coding.
theavi
01-02-2013, 02:45 AM
Captcha is verification code which is used for verification and used to stop spam.it can be a code, an image.
lucasyesher
01-03-2013, 02:57 AM
It is generally use for security purpose it is human verification code.
jaagitthe
01-05-2013, 04:37 AM
A CAPTCHA is a program that can generate and grade tests that humans can pass but current computer programs cannot.
partapamit
01-05-2013, 07:03 AM
Captcha is used to protect website forums from auto submissions.
brianvitori12
01-06-2013, 11:28 PM
This CAPTCHA thing is really one of the measures to stop automated bots from filling up online forms. It is a good measure to stop spamming in the web.
jayanta1
01-14-2013, 06:29 AM
A CAPTCHA is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a human being. The process usually involves a computer asking a user to complete a simple test which the computer is able to grade. CAPTCPA is mainly used to prevent automated software (bots) from performing actions on behalf of actual humans.
jackson00
01-16-2013, 06:13 AM
hey .. Captcha is a random sting... On every refresh, It gives different words..
anthonymartin78
01-21-2013, 03:12 AM
Captcha is a way by which automated robotic text input possibility can be minimized or eradicated at all. The problem of receiving spam emails can be solved with this.
jonathan321
01-21-2013, 04:37 PM
CAPTCHA (Completely Automated Turing Test To Tell Computers and Humans Apart) is a type of challenge-response test used to ensure that the response is not generated by a computer.
A Captcha encoder is a program that can generate and grade tests that most humans can pass, but which current computer programs fail.
JamieSpruson
01-22-2013, 12:57 AM
A CAPTCHA is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a human being.
preeti22
01-22-2013, 07:21 AM
A CAPTCHA is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a human being.The process usually involves a computer asking a user to complete a simple test which the computer is able to grade.
mslherry
01-23-2013, 05:22 AM
CAPTCHA is a security test put forth to prevent automated requests from computers from reaching the servers.:D
rob_marin
01-25-2013, 07:39 AM
Captcha is a program that can generate and grade tests that humans can pass but current computer programs cannot.
online auction software (http://www.softbizscripts.com/online-auction-software.php)
spygovind
01-29-2013, 06:54 AM
more known about captcha please check this link
http://www.google.com/recaptcha/captcha
JascintaFedrick
01-30-2013, 07:31 AM
The term CAPTCHA (for Completely Automated Public Turing Test to Tell Computers and Humans Apart). It is a technique used by the computer for online typing test that is easy for humans to pass. For captcha code just downloads the source file from the internet.
graphics art
01-30-2013, 10:21 PM
Captcha is a way of fillter the software users and stop the spaming.
angelolee88
02-06-2013, 11:37 PM
It is to be noted that the thing called as the CAPTCHA was really brought into existence for the prevention of this thing called as spamming that is totally prevalent these days.
addictiveharish
02-07-2013, 04:37 AM
Captcha which stands for Completely Automated Public Turing test to tell Computers and Humans Apart, is a type of challenge response test to ensure that the response is only generated by humans and not by a computer.
richardomartin1
02-08-2013, 01:39 AM
Captcha is a confirmation process for human minds. It is put in place to minimize the usage of spams and adulterations. This a very effective way of detecting any non human presence.
canadian678
02-11-2013, 05:14 PM
A CAPTCHA is a web program, it is used for Human Verification. It is one of the Challenge response test and it is used for computing as an attempt to ensure generated by a Human. Captcha Stands for “ Completely Automated Public Turing test to tell Computers and Humans Apart”.
Martinguptill12
03-06-2013, 02:00 AM
Captcha is a tool that stops any filing of online forms and email addresses by computer automated software. This is really very useful one to restrict sending of countless spam emails.
graphics art
03-14-2013, 04:02 PM
Captcha is simple plugin that we instal on our sites for avaoid spamy things on the site.
kencurtis16
03-19-2013, 11:41 PM
Hello...
Captcha was a helpful tool to keep free from spambot...
semaphore.v
04-15-2013, 01:32 AM
CAPTCHAs now use pictures instead of words where the user is presented with a series of pictures and asked what is the common element among all of the pictures.
Andymurray715
04-15-2013, 05:55 AM
Humans use the Captcha in order to indicate to search engines that they are not one of those webs based bots that fill in forms in sites.
digital forum
05-14-2013, 03:58 AM
CAPTCHA is "Completely Automated Public Turing Test To Tell Computers and Humans Apart"
innovativeweb
05-14-2013, 06:08 AM
Hello Guys,
Thank you very much for your help.Captcha is good thing to prevent from spam.
aishasony
05-14-2013, 06:24 AM
CAPTCHA or Captcha which stands for “Completely Automated Public Turing test to tell Computers and Humans Apart” designed to differentiate humans from automated programs. A CAPTCHA differentiates between human and bot by setting some task that is easy for most humans to perform but is more difficult and time-consuming for current bots to complete.
martinbrown786
05-31-2013, 01:51 AM
The use of Captcha is an attempt to bypass the spammers. Captcha reflects an image and you need to enter the text in the box itself.
sanamgupta
11-17-2014, 01:00 AM
a computer program or system intended to distinguish human from machine input, typically as a way of thwarting spam and automated extraction of data from websites.
divorceclass
11-17-2014, 01:50 AM
A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot.
markellis312
11-17-2014, 02:18 AM
Captacha just like a Verification code.
paulbrighton
11-17-2014, 06:15 AM
Captcha is a program or system intended to distinguish human from machine input.
robertmiker
11-19-2014, 01:37 AM
CAPTCHA is to ask for human verification.
netxsolution
11-20-2014, 01:19 PM
Captcha is the best thing , actually captcha is the difficult wording mixture , which helps you save your website, software with any type of spamming and bulking. thanks
DoloresPiper
11-26-2014, 12:51 AM
A captcha is a program which is used to distinguish human from machine. It is a way of catching the spammers and automated extraction of data from website.
singhabhishek25
11-26-2014, 07:03 AM
I do not believe that there could be 322 reply for this simple question somewhere and this is 323rd, but obviously not an answer,but a concern for the spamming. I am wondering how many varieties of answer can be found here. I am going to read all of them one by one.
christopher12
12-01-2014, 01:19 AM
captcha is the verification code for verificatio
123johnsin
12-01-2014, 06:59 AM
verification code is called captcha.
harry26
12-02-2014, 04:52 AM
captcha is need for any website for stop to automated spam or only authorize unique visitors to access any site.
Bluesky94
10-31-2016, 11:43 AM
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.
The term was coined in 2003 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper, and John Langford.The most common type of CAPTCHA was first invented in 1997 by two groups working in parallel: (1) Mark D. Lillibridge, Martin Abadi, Krishna Bharat, and Andrei Z. Broder; and (2) Reshef, Raanan and Solan. This form of CAPTCHA requires that the user type the letters of a distorted image, sometimes with the addition of an obscured sequence of letters or digits that appears on the screen. Because the test is administered by a computer, in contrast to the standard Turing test that is administered by a human, a CAPTCHA is sometimes described as a reverse Turing test.
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