The best alternatives to Fluxguard are Frank Eno's Tools & Games, Visualping, and URLify. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Fluxguard?
AuthKit— The world's best login box, powered by WorkOS + Radix
Visualping is a simple service for monitoring websites for changes. You'll receive an email notification when it detects any change in the content of the page. You can either choose to monitor the whole website...
Extension for reporting suspicious sites to Safe Browsing. Help protect web users by reporting suspicious sites you see in Chrome to Google Safe Browsing.