As shown below, a green tick in the textbox indicates the email is valid, while a red 'X' indicates the email is not valid.
Creating an app
To start using the widget, first, create an application. Go to the Apps page and click on the Create New Application button.
You will be asked to assign Application Name which will make it easy for you to identify the application.
The domains which are intended to use this widget should be added in the Allowed Domains. QuickEmailVerification will allow only requests from those domains that are allowed by the user. The allowed_domain setting does accept any valid domain name scheme or the IP address of your domain but it will ignore any trailing part of the domain name. If you wish to restrict your application specific to a subdomain only, you can enter subdomain value there and the application will accept requests generated from that specific subdomain only.
Click on the Create button and your application is ready to install.
Once an application is created, you will see a HTML code snippet for your widget. Copy the HTML code snippet given on the application page and put it just before the </body> tag of the page where you want to install the widget.
Detecting email fields
<input type="email" name="email-field" id="email-field" value="Enter your email" /> <input name="email" id="email-field" value="Enter your email" /> <input name="email-field" id="email-field" value="Enter your email" data-qev-email-field />