here on DU just got a notice "checking your browser for compatibility* while opening

[msongs]

a post * - paraphrasing never seen that admonition before

[Dave Bowman]

1. It happened to me a couple of times recently.

Not sure what it is or if it's something normal, though.

[Walleye]

2. Me too, first time I've ever seen it, resolved itself quickly

[multigraincracker]

3. I think they want me to upgrade to a newer computer.

It’s only 17 years old. Like new.

[Voltaire2]

4. What browser are you using?

[msongs]

5. firefox

[Nittersing]

6. I got it with Chrome. nt

[usonian]

7. DU uses cloudflare to block hack attacks.

Cloudflare sometimes does a puzzling check.
Pretty sure I got this right.