Domain not getting resolved with some telecom operators in Saudi Arabia

[siddharth.sahu]

One of our domains scnv.io is not getting resolved for STC telecom provider but is getting resolved for Zain Telecom provider.

With STC, if we change system settings and add Cloudflare DNS resolver(1.1.1.1), it resolves correctly.

We checked DNSSEC and it looks fine. (https://dnssec-debugger.verisignlabs.com/scnv.io)

We checked both telecom provider on same system, hence it’s not a system issue. Also, we checked for both Safari and Chrome, hence it can’t be browser issue.

Let me know if you feel anything which could cause this?

[sjr]

Same question and domain asked here…

My website is not accessible to few customers in Saudi Arabia

I have a domain DNS managed by Cloudflare https://scnv.io for the last few days, users have reported that they are not able to access the URL in Saudi Arabia. The error they get in Chrome is DNS_PROBE_FINISHED_NXDOMAIN Here is the recording shared by one of our customers

[siddharth.sahu]

Yes, we have narrowed down the issue to the telecom provider level. Also, changing the system setting and forcing users to use Cloudflare DNS(1.1.1.1) seems to resolve the issue. Any idea how to proceed further?

[sjr]

Looking at the original thread, the poster there said works when the site is proxied and is a problem with your server’s IP address. That plus…

@siddharth.sahu

Yes, we have narrowed down the issue to the telecom provider level.

…means you need to talk to the Telecom operator, or use the Cloudflare proxy.

[siddharth.sahu]

We have been reaching out to the telecom provider for multiple days but they are replying with generic answers. Unfortunately, due to our requirements, we can’t use Cloudflare proxy.

[sjr]

As it’s not a Cloudflare issue (and Cloudflare’s 1.1.1.1 or using the proxy actually works round it), you can only hope to resolve it with the telecom provider.