Serve images in nextgen formats wordpress
<IfModule mod_setenvif.c>
# Vary: Accept for all the requests to jpeg and png
SetEnvIf Request_URI "\.(jpe?g|png)$" REQUEST_image
</IfModule>
<IfModule mod_rewrite.c>
RewriteEngine On
# Check if browser supports WebP images
RewriteCond%{HTTP_ACCEPT}image/webp
# Check if WebP replacement image exists
RewriteCond%{DOCUMENT_ROOT}/$1.webp-f
# Serve WebP image instead
RewriteRule(.+)\.(jpe?g|png)$$1.webp[T=image/webp]
</IfModule>
<IfModule mod_headers.c>
Header append Vary Accept env=REQUEST_image
</IfModule>
<IfModule mod_mime.c>
AddType image/webp .webp
</IfModule>