How to know whether a VPN is blocking a website or a website is blocking a VPN

So I’ve got two VPN subscriptions, let’s call them VPN A and VPN B. And I like going to a somewhat popular website, which I’ll call Site C.
I’m a new customer to VPN B, and I’ve noticed that I can’t access Site C while using VPN B. I can a… Continue reading How to know whether a VPN is blocking a website or a website is blocking a VPN

How to secure a web-only chat with message persistence and ability to delete a message?

I want to create a website for internal secure chat. I want to be able to give people a user name and log in and then they can log in to a portal at a website; then I can chat to them solely in a chat interface on this website. If they hav… Continue reading How to secure a web-only chat with message persistence and ability to delete a message?