General DNS issues
In web browsers such as Safari or Chrome, there are several commonly observable DNS errors:
This site can’t be reachedThis webpage is not availableerr_name_not_resolvedCan't find the serverError 1001 DNS resolution error
Below are the most common causes for DNS resolution errors along with suggested solutions.
Verify that the domain or subdomain was correctly spelled in the request URL.
Ensure that you have the necessary DNS records in the DNS app of your Cloudflare dashboard. This includes having the following records:
- The zone apex (e.g.,
example.com) record. - Existing subdomains (
www.example.com,blog.example.com) records.
DNS resolution failures occur if DNSSEC is not disabled at your domain provider before you add the domain to Cloudflare.
If you manage DNS records via the DNS app in Cloudflare's Dashboard and your domain stops pointing to Cloudflare's nameservers, DNS resolution will stop functioning.
This can occur if your domain registrar switches the nameservers for your domain to point to their default nameservers. To confirm if this is the problem, check whether your domain uses Cloudflare's nameservers.
In rare cases, the DNS resolver in the client requesting the URL might fail to resolve a DNS record to a valid IP address.
Reload the page after a short wait to note if the problem disappears. This issue is unrelated to Cloudflare, but using Cloudflare's DNS resolver may help. Contact your hosting provider for additional help with your current DNS resolver.