dgtlmoon123B

You should use a real web server infront of it in this case, see https://github.com/dgtlmoon/changedetection.io/wiki/Running-changedetection.io-behind-a-reverse-proxy (nginx apache etc)

How about every site on the internet? just use your imagination…

manual.bubble.io documentation, https://www.canyon.com bikes
https://www.eriksbikeshop.com https://www.onbuy.com/ i mean… just use your
magination job sites https://www.ninefeettall.com/careers/
https://www.network-n.com/careers/ https://www.merityre.co.uk/recruitment
https://www.thriftbooks.com amazon.com ebay , software updates, bestbuy restock alerts, etc etc etc etc
etc
etc

Btw, check out our tutorials page for some inspiration https://changedetection.io/tutorials