Intermittent DNS_PROBE_FINISHED_NXDOMAIN Issue on My Site

Website, Application, Performance DNS & Network
1

What is the name of the domain?

What is the error message?

DNS_PROBE_FINISHED_NXDOMAIN

What is the issue you’re encountering

I’m experiencing intermittent DNS_PROBE_FINISHED_NXDOMAIN errors on my website.

What steps have you taken to resolve the issue?

I have transferred our hosting and reset all Cloudflare settings

What feature, service or problem is this related to?

DNS not responding/updating

2

The domain highstreetpharma.org is currently operational and accessible with the status code below:

> GET / HTTP/2
> Host: highstreetpharma.org
> User-Agent: curl/8.7.1
> Accept: */*
>
* Request completely sent off
< HTTP/2 200
< date: Mon, 16 Dec 2024 04:23:08 GMT
< content-type: text/html; charset=UTF-8
< vary: Accept-Encoding
< link: <https://highstreetpharma.org/wp-json/>; rel="https://api.w.org/", <https://highstreetpharma.org/wp-json/wp/v2/pages/57>; rel="alternate"; title="JSON"; type="application/json", <https://highstreetpharma.org/>; rel=shortlink
< x-xss-protection: 1; mode=block
< x-content-type-options: nosniff
< x-nginx-upstream-cache-status: EXPIRED
< cf-cache-status: DYNAMIC

The error DNS_PROBE_FINISHED_NXDOMAIN typically indicates that no DNS records are configured for the domain or that DNS propagation is still in progress. For detailed information on this error, you can refer to the documentation here: Community Tip - Fixing the DNS PROBE FINISHED NXDOMAIN error

3

Hi,

Thank you for the detailed response regarding the DNS_PROBE_FINISHED_NXDOMAIN error. I’ve reviewed the documentation and thoroughly checked the DNS settings for my domain (highstreetpharma.org). Everything appears to be configured correctly.

Steps I’ve Taken:

  1. DNS Records:

All required DNS records (A, CNAME, and others) are correctly configured in the Cloudflare dashboard.
Verified propagation using external tools, and all records resolve as expected.

  1. Cloudflare Configuration:

SSL/TLS is set to Full (Strict) mode.
No misconfigurations or errors are reported in the Cloudflare dashboard.
Testing:

owever, the DNS_PROBE_FINISHED_NXDOMAIN error still occurs sporadically for some users. This suggests it might be intermittent or region-specific.

  1. Questions:

  2. Could this be related to Cloudflare’s DNS resolvers or regional propagation issues?

  3. Is there any additional diagnostic or logging mechanism I can use to track these occurrences?

  4. Could caching configurations or TTL settings play a role in this sporadic error?

I’d appreciate any further guidance or recommendations on resolving this intermittent issue.

4

Hi Team,

I have checked the Cloudflare DNS logs, and it is showing repeated NXDOMAIN errors for my domain (highstreetpharma.org).

Sample Log:

|Start Time|End Time|Count|Status|
|2024-12-16T06:46:00Z|2024-12-16T06:46:59Z|0|NXDOMAIN|
|2024-12-16T06:47:00Z|2024-12-16T06:47:59Z|0|NXDOMAIN|

This occurs intermittently, and I’d appreciate further assistance in identifying the root cause.

Please let me know if you need additional details.

5

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