I've used signup.com and signupgenius.com in the past and both worked well and have free options. But in looking around, volunteersignup.org would be my pick now and seems to be exactly what you're looking for. Source: about 3 years ago

If COTA is too far, there's Family Medical Systems up north in cedar park, and they need volunteers too. They feed you and give you a shot at the end of your shift. https://signupgenius.com/#!/showSignUp/10c0f4fa5a723a0f49-volunteer. Source: about 3 years ago

I am on mobile and can only access the mobile site (even removing “m.” in the address bar redirects me straight back to it) so here’s the address with m. And without but no promise that either work from mobile/desktop - may be easier/more accurate to scan QR code or type in URL shortener by hand! Source: about 3 years ago

I also like WP Rocket's database cleaning tool: https://wp-rocket.me/. Source: about 1 year ago

This will have a serious impact based on that kind of database. A good caching plug-in like WP Rocket should help with the overheads and speed things up. If you have server side caching like memcached or lighspeed make sure you are utilising it. Source: about 1 year ago

Purchase a license from the WP Rocket website (https://wp-rocket.me/). Source: about 1 year ago

Sounds like your colleague bought a nulled/"GPL free" copy of WP Rocket - probably not purchased from https://wp-rocket.me/. Source: over 1 year ago

One of the most beloved WordPress caching plugins is WP Rocket. They’ve managed to take something complex and make it extremely easy, yet still powerful and configurable. They have also made it easy to integrate with a CDN in just a few clicks. - Source: dev.to / over 1 year ago