Site slow? www.olieshop24.nl

Well here is your gtmetrix results: https://gtmetrix.com/reports/olieshop24.nl/rUyyBHTp

some images may be optimized but the real thing seams to be minify and caching
so my first advise could be : use bwpminify (plugin) ( set the caching intervall to 14 or 28 days)

and than prepare your htaccess file – here on board are some good hints for entries in your htaccess file:

insert it to your htaccess file but not in between these lines from wordpress itself:

# BEGIN WordPress
<IfModule mod_rewrite.c>
…
</IfModule>
# END WordPress

my standard entries for wordpress are:

# Deny from
<files wp-config.php>
order allow,deny
deny from all
</files>

 
# Directory Browsing
Options All -Indexes

# Keep-Alive
<ifModule mod_headers.c>
   Header set Connection keep-alive
</ifModule>
 
# Gzip
<IfModule mod_mime.c>
    AddType application/javascript          js
    AddType application/vnd.ms-fontobject   eot
    AddType application/x-font-ttf          ttf ttc
    AddType font/opentype                   otf
    AddType application/x-font-woff         woff
    AddType application/x-woff              woff
    AddType image/svg+xml                   svg svgz 
    AddEncoding gzip                        svgz
</Ifmodule>
 
# GZip Kompression
<IfModule mod_gzip.c>
 mod_gzip_on       Yes
 mod_gzip_dechunk  Yes
 mod_gzip_item_include file      \.(html?|txt|css|js|svg|php|pl)$
 mod_gzip_item_include handler   ^cgi-script$
 mod_gzip_item_include mime      ^text/.*
 mod_gzip_item_include mime      ^application/x-javascript.*
 mod_gzip_item_exclude mime      ^image/.*
 mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
</IfModule>

 
# Browsercache
<IfModule mod_expires.c>
 ExpiresActive On
 ExpiresDefault "access plus 1 month"
 ExpiresByType text/css "access plus 1 month"
 ExpiresByType text/javascript "access plus 1 month"
 ExpiresByType text/html "access plus 1 month"
 ExpiresByType application/javascript "access plus 1 month"
 ExpiresByType application/x-javascript "access plus 1 month"
 ExpiresByType application/x-font-ttf "access plus 1 month"
 ExpiresByType application/x-font-woff "access plus 1 month"
 ExpiresByType application/x-woff "access plus 1 month"
 ExpiresByType application/xhtml-xml "access plus 600 seconds"
 ExpiresByType image/gif "access plus 1 month"
 ExpiresByType image/jpeg "access plus 1 month"
 ExpiresByType image/svg+xml "access plus 1 year"
 ExpiresByType image/svg "access plus 1 year“
 ExpiresByType image/png "access plus 1 month"
 ExpiresByType image/x-icon "access plus 1 month"
</IfModule>

 
# Deflate by FileType
<IfModule mod_deflate.c>
 AddOutputFilterByType DEFLATE text/plain
 AddOutputFilterByType DEFLATE text/html
 AddOutputFilterByType DEFLATE text/xml
 AddOutputFilterByType DEFLATE text/css
 AddOutputFilterByType DEFLATE text/javascript
 AddOutputFilterByType DEFLATE image/svg+xml
 AddOutputFilterByType DEFLATE application/javascript
 AddOutputFilterByType DEFLATE application/xml
 AddOutputFilterByType DEFLATE application/xhtml+xml
 AddOutputFilterByType DEFLATE application/rss+xml
 AddOutputFilterByType DEFLATE application/atom_xml
 AddOutputFilterByType DEFLATE application/x-woff
 AddOutputFilterByType DEFLATE application/x-font-ttf
 AddOutputFilterByType DEFLATE application/x-font-woff
 AddOutputFilterByType DEFLATE application/javascript
 AddOutputFilterByType DEFLATE application/x-javascript
 AddOutputFilterByType DEFLATE application/x-shockwave-flash
</IfModule>
 
# ETag
Header unset ETag
FileETag None

you allways can do that! Its up to you – there are some good beginners deals – but most are associated with costs. Alot of good caching tools have integrated such settings for cdn.

But before all that i would do all the other trick before. Enable gzip for the most of my files (see htaccess) etc. pp