How to Implement CAPTCHA

Written by Web Hosting Expert

November 22, 2021
How to Implement CAPTCHA

If you own a website, you probably know all about the problems regarding bots and spammers. The quality of your site can be lowered by bots and spammers attacking your contact forms and abusing your comments sections.

One of the most efficient ways to prevent bots from spamming your site is CAPTCHAs.

What is Captcha

CAPTCHAs, or Completely Automated Public Turing Tests to Tell Computers and Humans Apart, is a service that helps protect sites from bots and fraudulent form submissions. Even though it is often attempted to surpass them by attackers, they still manage to be a good line of defense. Plus, they are quite easy to implement.

What Are the Benefits of Implementing CAPTCHAs on Your Website

With CAPTCHAs, you will be able to determine whether a certain visitor is a bot or human.

Benefits of Implementing CAPTCHAs on Your Website

The benefits that CAPTCHAs offer are the following:

  • The amount of spam your site receives can be reduced with a CAPTCHA.

  • CATCHAs can be solved by humans in just a few seconds. So, real visitors that are humans won’t have a problem with access.

  • CAPTCHAs provide a great way to differentiate between fake and real traffic coming to your website.

Implementing a CAPTCHA is a great solution for any site that wants to protect itself from bots. For instance, CAPTCHAs are a perfect choice for login websites. Before you comment, many websites require visitors to register, and bots won’t be able to spam your site since it won’t get past your login.

General Steps to Set Up CAPTCHAs on Your Website

We’ve chosen to include reCAPTCHA in our article due to the fact it offers high quality, and it comes courtesy of Google. Below, we will go over the steps of implementing reCAPTCHA on your site.

  • Go to ReCAPTCHA and Register Your Site

The simplest thing in this whole process is the first step. The first step includes going to the homepage of reCAPTCHA and clicking on the button Get reCAPTCHA that is located on the top of the screen. Then, you will enter the domain for your site and a label. Once you’ve filled out both of these sections, just click on Register.

Set Up CAPTCHAs on Your Website

Then, you will receive a Secret Key and a Site Key. We will need the latter for the purpose of this article. Save the key and continue with the process.

reCAPTCHA Seceret key implementation on your webste
  • Add the Script to Your Site

Between the tags on your site, you will need to insert the following line of code:

  • Place the CAPTCHA on Your Website

You will need to add some more code to your page to display CAPTCHA. Wherever you want your CAPTCHA to be displayed, just add the following line of code:

The line includes a place where you should insert the Site Key you got during the first step.


CAPTCHAs are still a very famous method for the protection of websites, even though they are under attack constantly. Even though it is not the only method you can implement to defend your website, it is surely the most efficient and simplest method out there.

Frequently Asked Questions

Does reCAPTCHA use cookies?

A necessary cookie is set by reCAPTCHA with the goal of providing its risk analysis.

How long is the reCAPTCHA cooldown?

Tokens for reCAPTCHA expire after two minutes. To prevent replay attacks, you can only be verified once.

What types of CAPTCHA are there?

There is Fasttypers, PixProfit, CaptchaTypers, Kolotibablo, MegaTypers, ProTypers, 2Captcha, and many more.

Is reCAPTCHA expensive?

reCAPTCHA isn’t expensive. On the contrary, it is completely free to use reCAPTCHA.

Can CAPTCHA be defeated?

CAPTCHA can be defeated in several ways; however, it’s still an efficient method against bots and attackers.



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