Rapid Canonical URLs
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Reduce 301 redirects and HTTP requests by using HTML5’s history API to show visitors the correct, canonical URL.
WordPress uses 301 redirects to redirect URLs to their canonical version.
In cases where the non-canonical version will show the correct content, it is possible to use the HTML5 history API to show visitors the correct URL without the additional HTTP request.
This reduces HTTP requests, speeding up access for visitors and reducing the load on your server.
It is strongly recommended you use this plugin in association with an SEO plugin that adds canonical URL meta tags.