Cannot Load redux.js.org

[foxmicha]

What is the current behavior?
The website located at https://redux.js.org will not load on some networks.

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via https://jsfiddle.net or similar.
Navigating to https://redux.js.org within Firefox displays the following error message:

What is the expected behavior?
For the website to load.

Which versions of Redux, and which browser and OS are affected by this issue? Did this work in previous versions of Redux?
Previously the reduxjs website was hosted at reactjs.github.io/redux but in February of this year it was updated to be hosted by hosting.gitbook.com. It would appear that this new hosting is what is causing the issue. This was updated by this PR.

Other js.org websites that are not hosted by gitbook.com load just fine. I know of no firewall setting or antivirus that is in the way of my connecting to redux.js.org

Any help is greatly appreciated.

[timdorr]

What browser version are you using and what's your location? I've seen this come up as an intermittent error before, but it normally corrects itself. I'm able to see things fine from here.

Gitbook uses LetsEncrypt to build their certs. They have good trust coverage, but there are some really old browsers that don't trust their roots, so it's not 100%. But that should be exceptionally rare.

[foxmicha]

I wish I could tell you I was using an older version of any modern browser. Unfortunately I'm on the latest version of the trifecta:

Firefox:

Chrome:

IE:

I'm also located in the US.

[foxmicha]

@timdorr As a final update to this, it looks like the primary issue was a DNS lookup failure. For the length of this issue, my DNS has been resolving the website to 104.236.176.100. However, Google's public DNS has the website listed as 45.55.238.214. After a couple of cache clears, this is now cleaned up.

I'm not sure why it took so long to update my DNS. Hopefully it doesn't become common place for gitbook to jump IP addresses.