Netlify site fails randomly and users are unable to access it

I am using Netlify to host an externally registered client site with a custom domain “https://tagafrica.com.ng”. The site fails randomly and users are sometimes unable to access it. I’ve done all the suggested checks.

When I run this command <whois tagafrica.com.ng | grep -i “name server”> in my terminal, I get the correct Netlify assigned DNS records back but the issue persists. I’ve double-checked and the DNS records on my domain host match the registered record on Netlify.

Is there something i am missing? Please help!

With what message?
What do the users see?

Could it be their own network connection?

I don’t think it’s an issue of network connectivity. Multiple users with strong internet are unable to access the site.

The error message is usually “This site can’t provide a secure connection” “tagafrica.com.ng sent an invalid response: ERR_SSL_PROTOCOL_ERROR”

I ran the command below as seen on this support forum: [Support Guide] How to detect and fix inactive Netlify DNS zones

dig tagafrica.com.ng NS +trace | tail -n 6

and this was the response below:

tagafrica.com.ng.	3600	IN	NS	dns1.p07.nsone.net.
tagafrica.com.ng.	3600	IN	NS	dns2.p07.nsone.net.
tagafrica.com.ng.	3600	IN	NS	dns3.p07.nsone.net.
tagafrica.com.ng.	3600	IN	NS	dns4.p07.nsone.net.
;; Received 134 bytes from 198.51.44.7#53(dns1.p07.nsone.net) in 171 ms

It looks like the name server on the “Received” line is the same as the name server tied to the production domain on Netlify and not the name server of the domain registar.

Does this still mean that the Netlify DNS zone is inactive?

@Uzoamaka_01 Your results match those demonstrated as:

Example of “active” Netlify DNS zones
https://answers.netlify.com/t/support-guide-how-to-detect-and-fix-inactive-netlify-dns-zones/21742#p-59520-example-of-active-netlify-dns-zones-6

A duplicate thread of this one, with additional information, has been created here: