Technically speaking, it only checks that portion of the Internet that is visible to you. But that's the only part that's important, right?
No, the checks are performed in real-time, every time you load this page.
Because routers and things.
The site will adjust its analysis for your browser's specified language. It currently supports multiple languages, including Russian and Chinese.
I don't charge for this service. For me, it's enough to know that there are legions of adoring fans who, thanks to my hard work, now know that the Internet is still functioning.
I have a strong background in Internet. Also, HTTP.