Hey
It was wierd for me because last night I used Open Visual Traceroute, and it ook me through TWO Hong Kong routers!
I could still get to the typhoon website.
Correctiond THREE Hong Kong Routers today - might have been 3 last night.
Here's my traceroute:
Now I don't know if it's significant, but look at the 3 Hong Kong identified routers. I seriously doubt it has anything whatsoever to do with it, because I can still open the website, load it in Safari as my homepage on my Mac. Or chrome and IE as well as Edge on my WIndows devices (don't get me started on Edge - it hangs on a LOT of pages)
Do you have a traceroute we can compare.
It's REALLY odd that you get this issue, yet can google it and open it, just not open it as a homepage via the router....
BTW, apologies if none of these links help, but I thought I'd throw them out there:
https://discussions.apple.com/thread/5958496
This one in particular suggests it happens with homepages:
The reason I suggest this one is it talks about some of the arcane stuff related to the way Apple handles certificates.
Part way down it talks about how something was related to the SMTP settings. Since you have changed from one ISP, I wonder if it got messed up in there somehow.