We’re having the same issue as in the above locked post. Been like that for weeks now. Community subdomain is fine, but tld is inaccessible. Out company network is fine config-wise and we can open the site from mobile, but that’s obviously no good.
Help appreciated 
2 Spice ups
To be clear, you’re having an issue connecting to www.spiceworks.com , correct? Do you have the same issue when in incognito mode? When you’re on a different IP? What’s the results when you ping it?
I haven’t had any issues connecting to it and not seeing any trouble signs. I did ping it from a few different VPN locations to be on the safe side.
1 Spice up
Hello Sean,
Ping goes through 0% loss, traceroute goes through, incognito changes nothing and all our internet-facing IPs result in the same error as in the ss. Tried http and https, no joy. Tried specific links, sent from my phone (on mobile data), no joy 
Hmmm, that is odd. What’s also odd is the IP you show in your image above is not what I’m seeing (at least the IP you’re accessing the Community from).
I checked Is It Down to be on the safe side: Spiceworks.com - Is Spiceworks Down Right Now? and https://downforeveryoneorjustme.com/spiceworks.com?www=1 and http://isitdown.co.uk/www.spiceworks.com to be on the safe side.
I checked Imperva (Incapsula) Status and not seeing anything weird for your region: https://status.imperva.com/
Could it be an issue with your ISP?
Can’t say, but it’s not entirely impossible; given the symptoms. I could share with you the redacted IP, but not on here.
Also, the IP on the ss is supposed to be spiceworks.com’s; that’s also what tracert resolves to.
Doh! I apparently did not have my coffee when I originally looked at this… I should have realized that is our IP (for www).
Do you have the same issue when trying to access the website from a different location (such as at home)?
This is too weird! I just realised I can open spiceworks.com on company wifi; so far i only have tried my own mobile data. No, havent tried at home, why would i do that?! 
So it seems our isp doesnt block it… what gives?!