Age Checker is an age verification plugin for WordPress. This plugin asks users to verify their age when loading a page. Once the user confirms that they are older than the minimum age, the content of the page is made available. Age restriction is useful for various industries such as alcohol, gambling or adult websites.

1. Age Verification Form: The plugin should provide a customizable age verification form that users must complete before accessing the restricted content.

2. Date of Birth Verification: Users should be asked to enter their date of birth to verify their age.

3. Customizable Age Restrictions: The plugin should allow you to set specific age restrictions for your website. For example, you can set the minimum age for access to be 18 or 21 years old.

4. Age Restriction for Specific Content: You should be able to apply age restrictions to specific content, pages, or products on your website.

5. Customization Options: The plugin should allow you to customize the appearance of the age verification form to match your website's design and branding.

6. Responsive Design: The age checker should be responsive and work well on both desktop and mobile devices.

7. Integration with E-commerce Platforms: If you're selling age-restricted products, the plugin should integrate with e-commerce platforms like WooCommerce to restrict access to specific products based on age.

8. Cookie-Based Bypass Prevention: To prevent users from easily bypassing the age verification, the plugin may use cookies to remember that a user has already passed the age check during their session.

9. Localization Support: The plugin should support multiple languages and provide localization options to ensure compliance with regional regulations.

10. Logging and Reporting: It should log age verification attempts and provide reporting features so you can monitor user interactions and ensure compliance with age restriction laws.

11. Auto Redirect: Once a user's age is verified, the plugin should automatically redirect them to the content or page they were trying to access.

12. GDPR Compliance: If you have users in the European Union, the plugin should be GDPR compliant in terms of data protection and user consent.

13. Exit Option: Users should have the option to exit the age verification process if they do not wish to proceed.

14. Multiple Verification Methods: Some plugins offer various verification methods, such as ID scanning, SMS verification, or CAPTCHA, to ensure accurate age verification.

15. Fallback Mechanism: In case the verification method fails, the plugin may provide a fallback option to allow users to access content after acknowledging that they are of legal age.

16. Support and Updates: It's essential to choose a plugin with a developer or support team that provides regular updates and assistance.