Page Speed is an important factor of today’s’ on-page SEO optimization. To find out current score and the reason for low score, you may use the Google’s tool – PageSpeed Insights, here’s how you should use the Page Speed Insights:
First go to the Page Speed Insights.
Look into “Optimize images” section, click on “Show how to fix”, get the image name and location, download the image files from FTP and use tools like Image Optimizer listed below:
https://tinypng.com/ or http://jpeg-optimizer.com/
After you optimize each image, upload the optimized images again to the FTP. Be sure to check the image quality and adjust the setting accordingly.
If your website is based on WordPress platform, first take a backup of htaccess file and then use the following codes and upload htaccess file back to the FTP: [if you don’t do it properly, you may not be able to access your website, in such issue, remove the new htaccess file from FTP and restore the backup file].
AddOutputFilterByType DEFLATE text/plain text/html application/x-httpd-php-source
AddOutputFilterByType DEFLATE text/xml application/xml application/xhtml+xml application/xml-dtd
AddOutputFilterByType DEFLATE application/rdf+xml application/rss+xml application/atom+xml image/svg+xml
AddOutputFilterByType DEFLATE font/truetype application/x-font-ttf font/opentype application/x-font-otf
# Enable expirations
# Default directive
ExpiresDefault “access plus 1 week”
# My favicon
ExpiresByType image/x-icon “access plus 1 week”
ExpiresByType image/gif “access plus 1 week”
ExpiresByType image/png “access plus 1 week”
ExpiresByType image/jpg “access plus 1 week”
ExpiresByType image/jpeg “access plus 1 week”
ExpiresByType text/css “access 1 week”
Now run the website again on PageSpeed Insights, you should see some progress on the score. To increase more page speed, you need to install WP Super Cache plugin and configure it accordingly.