Subdomain SSL is not working despite valid configuration in Vercel

Help
1

Hello,

I’m trying to switch my blog domain from log.anb-network.com to blog.anb-network.com.

Currently:

  • I updated the DNS to point blog.anb-network.com to cname.vercel-dns.com.
  • and I also added CNAME “blog” in cloudflare. - I didn’t touch any setting in cloudflare except for this. I have confirmed that all previously distributed sites work well.
  • The domain shows “Valid Configuration” in the Vercel dashboard.
  • I’ve verified the DNS with dig, which resolves correctly.
  • I’ve cleared Cloudflare’s cache and disabled the proxy (DNS-only mode).
  • I’ve redeployed the project and tried both manual and automatic revalidation.
  • NOTE) I am deploying my project from Github repository.

However, I’m still getting the following error in the browser:ERR_CONNECTION_REFUSED.

When I run: curl -Iv https://blog.anb-network.com --resolve blog.anb-network.com:443:76.76.21.93,
it returns the correct site content, meaning the deployment works, but public access via HTTPS still fails.

Can you please investigate if the SSL certificate for this domain is properly provisioned or if something is blocking the traffic?
I set this setting before around 2 hours ago.

Thanks in advance!

3

Can you try a different browser? I can see that SSL has correctly setup: SSL Checker

4

Thanks for checking this question,

I cannot see my site on Chrome, Safari, and Forefox.
I’m not sure if it’s only in my region. Can you check if it works well on your computer? :thinking:

5

Yes it does:

image
image3248×1928 465 KB

What is the error you are getting? Can you run this script and share us the output?

6

Hello, I just checked that the site is working well on my phone.

However, seeing an error like this on the computer, I think it’s my computer’s problem.
I deleted the cache, but I still see this error, so something on my computer seems to have set up wrong.

screenshot
screenshot689×603 20.6 KB

I’ll find a way around the computer. As long as it works, it’s okay. Thank you for your kind help.

7

Yes this seems like an ISP block or specific to your device / network.