Regenerating thumbnails is one of those “under the radar” tweaks in WordPress that is an obvious need on many sites once the webmaster knows about it.

The two big benefits of regenerating thumbnails in WordPress is that it will make sure the images you have (not just the thumbnails) are the right size of the theme you’re using.

If you have switched themes at any time AFTER you’ve already uploaded images to your site you probably need to regenerate the thumbnails.

Second, if you have switched themes and regenerated thumbnails, a little manual image removal will allow you to save substantial disk space on your server.
//*
Backup tutorial: https://www.youtube.com/watch?v=D1aYbayFpfU&list=PLlgSvQqMfii4l2cVV1TZ7j_kHs_2qmf4b

Local by Flywheel tutorial: https://www.youtube.com/watch?v=nVi13qWdcvE&list=PLlgSvQqMfii43lqtvwI8vxHoY_ujdc0ug

Join our private Facebook group today! https://www.facebook.com/groups/wplearninglab
//*
Here are 20+ reasons why I host all my sites with SiteGround: https://wplearninglab.com/siteground-wordpress-hosting-review/
//*
Post videos of your WordPress success using the hashtag #WPLLCommunity!

Get on the Unofficial Ultimate Guide To Elementor course waiting list here (no obligation): https://elementor.convertri.com/elementor-guide-waiting-list

Here’s the link for Elementor Pro (aff): https://wplearninglab.com/recommends/elementor

Grab your free 17-Point WordPress Pre-Launch PDF Checklist: http://vid.io/xqRL

Download your exclusive 10-Point WP Security Checklist: http://bit.ly/10point-wordpress-hardening-checklist

I hope this information helps you! If you have any questions leave a comment below or ping me @WPLearningLab on Twitter.

WP Learning Lab Channel: http://www.youtube.com/subscription_center?add_user=wplearninglab

source