To enable GZIP COMPRESSION in WordPress using htaccess. Add the following code in your htaccess file located in WordPress root folder.
# BEGIN GZIP COMPRESSION <IfModule mod_deflate.c> # Compress HTML, CSS, JavaScript, Text, XML and fonts AddOutputFilterByType DEFLATE application/atom+xml AddOutputFilterByType DEFLATE application/javascript AddOutputFilterByType DEFLATE application/json AddOutputFilterByType DEFLATE application/ld+json AddOutputFilterByType DEFLATE application/manifest+json AddOutputFilterByType DEFLATE application/rdf+xml AddOutputFilterByType DEFLATE application/rss+xml AddOutputFilterByType DEFLATE application/schema+json AddOutputFilterByType DEFLATE application/vnd.geo+json AddOutputFilterByType DEFLATE application/vnd.ms-fontobject AddOutputFilterByType DEFLATE application/x-font AddOutputFilterByType DEFLATE application/x-font-opentype AddOutputFilterByType DEFLATE application/x-font-otf AddOutputFilterByType DEFLATE application/x-font-truetype AddOutputFilterByType DEFLATE application/x-font-ttf AddOutputFilterByType DEFLATE application/x-font-woff AddOutputFilterByType DEFLATE application/x-javascript AddOutputFilterByType DEFLATE application/xhtml+xml AddOutputFilterByType DEFLATE application/xml AddOutputFilterByType DEFLATE font/opentype AddOutputFilterByType DEFLATE font/eot AddOutputFilterByType DEFLATE font/otf AddOutputFilterByType DEFLATE font/ttf AddOutputFilterByType DEFLATE image/bmp AddOutputFilterByType DEFLATE image/svg+xml AddOutputFilterByType DEFLATE image/vnd.microsoft.icon AddOutputFilterByType DEFLATE image/x-icon AddOutputFilterByType DEFLATE text/cache-manifest AddOutputFilterByType DEFLATE text/css AddOutputFilterByType DEFLATE text/html AddOutputFilterByType DEFLATE text/javascript AddOutputFilterByType DEFLATE text/plain AddOutputFilterByType DEFLATE text/vcard AddOutputFilterByType DEFLATE text/vnd.rim.location.xloc AddOutputFilterByType DEFLATE text/vtt AddOutputFilterByType DEFLATE text/x-component AddOutputFilterByType DEFLATE text/x-cross-domain-policy AddOutputFilterByType DEFLATE text/xml </IfModule> # END GZIP COMPRESSION
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