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ReCaptcha JS Alert provides the [recaptcha-js-alert] shortcode, which (if necessary) informs visitors of your website that a form requires JavaScript …

Is your site available behind the Chinese Firewall? Check for free using the Blocked in China API.

Shows a warning in the WordPress administration header when the option "Search Engine Visibility: Discourage search engines from indexing this si …

This plugin provides a search form to check if URLs are filtered, blocked or censored.

Count visitors who has ad-blockers enabled

Detect fatal errors that might be produced by the installed active Plugins, provide secure backdoor for deactivating the target Plugin.

Detects if the visitor have AdBlock (or another) plugin/extension installed and if not, gives URL to download it

Display the 'Search Engines Discouraged' notification in the WordPress Toolbar if the blog_public option has been checked.