Unable to access .org websites

You can test if it's a DNS issue, which I'd bet it is. On a Mac, open the Terminal app and execute this to look up Wikipedia's IP address:

dig +short wikipedia.org

If it doesn't output anything, then DNS doesn't work properly. You can try with a custom DNS server:

dig +short wikipedia.org @1.1.1.1

If it works, it'll output an IP address, something like 208.80.154.224 or 2620:0:861:ed1a::1

Check again with that broadband provider. This is usually an indication that their DNS service is broken.

murali275 wrote:

For the last few days I am unable to access any website ending with .org from all my devices-Checked with broadband provider who has confirmed none of the sites have been blocked. Any suggestions?

Did you try a different browser?

I can only guess that there was a DNS issue at your ISP or somewhere upstream from there, and that the issue is now fixed.

Maybe when the ISP representative checked, their phone used a VPN, a different DNS server, or switched automatically to cellular and that's why it worked for them.

If it happens again for specific domain names, you can check if resolving some DNS names works using the dig command again, then you can ask the ISP, "Hey, I can resolve the google.com domain name but not wikipedia.org, how come?"

dig +short google.com
dig +short apple.com
dig +short wikipedia.org
dig +short mozilla.org

Does https://wikipedia.org load in Safari? 🤔

If not, what's the error message?

Did you install any third party apps that claim to protect, any VPN/proxies? If so, remove these.

Well, if this command actually caused the issue to be fixed, then there's something severely messed going on at the ISP or in the router. 😃

We know it's not the computer, because other devices were affected as well. The dig command doesn't do configuration changes, it just looks up a domain name, which Safari and apps also do when they start loading something.