Phil

There are many uses for restricting content based on age, be it movie trailers, beer or other adult themes. This plugin allows you to set a restriction on what content can been seen or restricted based on the age of the user.
Features
<ul>
<li>Ask users to verify their age on page load</li>
<li>SEO Friendly – common bots and crawlers are omitted from age checks</li>
<li>Ability to add custom user agents for less common bots</li>
<li>Shortcode for in content restrictions</li>
<li>Choose to restrict an entire site, or selected content</li>
<li>Select a different age on individual content</li>
<li>Allow certain content to not be age gated under “all content” mode</li>
<li>Three choices for input; dropdowns, input fields or a simple yes/no button</li>
<li>Customise the order of the inputs based on your region (DD MM YYYY or MM DD YYYY)</li>
<li>Allow a “remember me” check box if desired</li>
<li>Ability to omit logged in users from being checked</li>
<li>Add your own logo</li>
<li>Update the text displayed on the entry form</li>
<li>Select background colour/image, foreground colour and text colour</li>
<li>Use built in styling out of the box, or your own custom style</li>
<li>Ability to add legal note or information to the bottom of the form</li>
<li>Redirect failed logins to a URL of your choice e.g. an alcohol awareness website.</li>
<li>Ability to use a non caching version</li>
<li>Various hooks to add even more customisation such as additional form fields</li>
<li>Compatible with multilingual plugins WPML, Polylang (2.3+), WP Multilang</li>
</ul>

Age Gate

the plugin does it's job properly, but it spams the dashboard with nags about next version age gate; you click dismiss and it's back there... very very annoying.

spamming dashboard with announcements

A plugin to check the age of a visitor before view site or specified content

Do you have to filter out younger people? With this super simple age gate you’ll fix those age restrictions quickly. 
This plugin is ment for webshops and other types of websites that has to have a curtain where people below your set age can’t peek behind. 
With some nice customisable items and features and the option to add a cookie notice this is a complete plugin for those who need is.
<h4>Super Simple Age Gate contains the following features:</h4>
<ul>
<li>Simply put in an age and activate the plugin.</li>
<li>Have the visitor confirm their age by using a “yes, I confirm” button OR by letting them fill in their full birth date.</li>
<li>Custom background, display text and logo for ease of use. If you don’t like the embedded themes, just change the css yourself in a non-destructive way.</li>
<li>Enable or disable the cookie notice. This is useful for websites that operate in Europe.</li>
<li>Whitelist some policy pages that need to be shown.</li>
<li>Google-bot friendly. Those crawlers go right underneath the curtain…</li>
</ul>

Super Simple Age Gate

Do you have to filter out younger people? With this super simple age gate you'll fix those age restrictions quickly. Ment for webshops and other …

Age Gate vs Super Simple Age Gate