Backup #
BlogVault
- For all-around best backup solution
- https://wordpress.org/plugins/blogvault-real-time-backup/
Updrafts Plus
- For a robust free-tier backup solution
- https://wordpress.org/plugins/updraftplus/
Security #
Sucuri Security
- Free tier with premium firewall option
- https://wordpress.org/plugins/sucuri-scanner/
WP Cerber
- Robust, feature-rich free-tier option
- https://wpcerber.com/
SMTP #
Fluent SMTP
- Best when used with Sendinblue email API
- https://wordpress.org/plugins/fluent-smtp/
Cache #
Powered Cache
Image Optimization/Cache #
Optimole
- Less expensive option
- https://wordpress.org/plugins/optimole-wp/
Cloudinary
- Premium option with image editing features
- https://wordpress.org/plugins/cloudinary-image-management-and-manipulation-in-the-cloud-cdn/