Toro_Unit (Hiroshi Urabe)

megane9988

Replace OGP and Twitter card by <a href="https://ja.wordpress.org/plugins/wp-sitemanager/" rel="nofollow ugc">WP SiteManager</a> to <a href="https://ja.wordpress.org/plugins/mypace-custom-title-tag/" rel="nofollow ugc">mypace Custom Title Tag — WordPress Plugins</a>.

WPS Mypace CTT Adapter

Mypace Custom Title Tag support for WP SiteManager.

Bernhard Kau

This plugin checks the title of a new post/page or any other post type for uniqueness. The plugin provides a filter <code>unique_title_checker_arguments</code>, which enables you to modify the <code>WP_Query</code> arguments used to find duplicate titles. You may use it to search in more than only current post type for a duplicate title.
This plugin is an enhancement of the <a href="https://wordpress.org/plugins/duplicate-title-checker/" rel="ugc">Duplicate Title Checker</a> by <a href="https://profiles.wordpress.org/ketanajani/" rel="nofollow ugc">ketanajani</a> which only supports posts but not pages or custom post types.

Unique Title Checker

Useful plugin to check duplicate page titles!

A simple plugin that checks the title of any post, page or custom post type to ensure it is unique and does not hurt SEO.

WPS Mypace CTT Adapter vs Unique Title Checker