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How do I add reCAPTCHA to HTML form?

How do I add reCAPTCHA to HTML form?

Adding a ‘Secret Key’ to the PHP file.

  1. Step 1: Registering for Google reCAPTCHA. First, you need to go to Google reCAPTCHA panel.
  2. Step 2: Adding reCAPTCHA JavaScript API to HTML. Now, you need to paste the JavaScript API inside the header tag of your html page.
  3. Step 3: Adding the ‘Site Key’ to the HTML form.

How do I add reCAPTCHA v3 to HTML?

Register a reCAPTCHA v3 Key and Secret In the reCAPTCHA Type field, select the reCAPTCHA v3 option. Fill in the Domains and Owners information as needed. Next, read and accept the reCAPTCHA Terms of Service. Finally, click on the Submit button to save the settings.

How validate reCAPTCHA in PHP?

How to Integrate google reCAPTCHA with PHP [ With Example ]

  1. Step 1: Get the reCAPTCHA API key. You need to register your domain and get an API key from google to use reCAPTCHA.
  2. Step 2: Adding reCAPTHA to your site.
  3. Step 3: Validate the user response.

How do I add a reCAPTCHA to my website?

Follow these simple steps to set up Google reCAPTCHA for your site.

  1. Sign up for an API key pair for your site.
  2. Select ‘Admin Console’
  3. Type your website URL.
  4. Select reCAPTCHA v2.
  5. Enter your website’s URL under ‘Domains’
  6. Enter emails of the administrators.
  7. Accept reCAPTCHA Terms of Service.
  8. Submit the form.

Is Google reCAPTCHA free?

reCAPTCHA is a free service from Google that helps protect websites from spam and abuse. A “CAPTCHA” is a turing test to tell human and bots apart. By adding reCAPTCHA to a site, you can block automated software while helping your welcome users to enter with ease.

How do I get reCAPTCHA?


  1. Log on to your Google account.
  2. Select the Invisible reCAPTCHA radio button.
  3. Register your domain. Remember. Your domain is the URL of your Identity Authentication tenant.
  4. Save your Site key and your Secret key. You need them for the configuration steps in the administration console for Identity Authentication.

How do I use Google reCAPTCHA v3 PHP?

Let’s See How To Integrate Google reCAPTCHA v3 in PHP Application

  1. Create Site key and Secret Key from Google reCAPTCHA Admin console.
  2. Create a simple contact form in PHP.
  3. Create a PHP file to validate the form using Google reCAPTCHA V3 API.

How do I know if reCAPTCHA v3 is working?


  1. Get keys from Google.
  2. Load recaptcha/api. js in head of html.
  3. Hijack form submission with JavaScript and at that point get token from Google.
  4. Submit form with token to your server.
  5. Make request from your website’s backend to Google to verify the form submission.
  6. Interpret the response and proceed as necessary.

How do I use Google reCAPTCHA v2 PHP?

Very first thing you need to do is register your website on Google recaptcha to do that click here. Login to your Google account and create the app by filling the form. Select the reCAPTCHA v2 and in that select “I am not a robot” checkbox option. Once submit, Google will provide you following two information.

Is Google Captcha free?

About reCAPTCHA reCAPTCHA is a free service from Google that helps protect websites from spam and abuse. A “CAPTCHA” is a turing test to tell human and bots apart.

Why do I get I am not a robot on Google?

Your computer may be infected with malware that sends automated traffic to Google. If you are frequently seeing “I’m not a robot” message then check your computer for malicious programs and remove unnecessary browser extensions. Try the official Chrome cleanup tool if you use Chrome and Windows operating system.

How to use reCAPTCHA with PHP contact form?

The following screenshot shows the Google reCAPTCHA widget rendered with the PHP contact form. When the user resolves the reCAPTCHA code, then the response token will be returned. A new HTML element g-recaptcha-response will be dynamically created to store the user’s response token.

How to use CAPTCHA code in Google reCAPTCHA?

In the contact form, the captcha code is shown and on the form submit this code is validated. Contact Form with Google reCAPTCHA. This code is used to show the contact form to the user with the Google reCAPTCHA code.

What to do if you get a lot of spam on Google reCAPTCHA?

If you are still getting a lot of spambot messages after implementing the captcha, you can change the security level. Go back to the Google reCAPTCHA admin panel, turn the slider all the way to “most secure” under the advanced settings. Some users may get a more difficult captcha challenge, but it does filter out a lot of unwanted spam.

How to create a simple contact form in PHP?

Insert the site key into 2-form.php and secret key into 3-process.php. Change $mailTo to your own in 3-process.php. That’s all. Launch 2-form.php in the browser. If you spot a bug, please feel free to comment below. I try to answer questions too, but it is one person versus the entire world…