Closed edjw closed 5 years ago
We could use "Site not found"?
The dnserror status represents a fairly broad category of DNS resolution errors.
Is a DNS Error status only ever shown when a site couldn't be found? Or are there other times when we could get DNS Error?
This example should fail at a 'whois' level?
The DNS "error" is a correct result: the domain does not exist. Ideally, we would say that, to distinguish non existent domains from DNS and hosting set up issues.
So we can say "Non-existent domain" instead of "DNS Error" in those cases then?
@dantheta – Why does TalkTalk and BT Strict have a status of "OK" for that non-existent domain?
I believe that some ISPs hijack NXDOMAIN DNS responses and return the IP address of an ISP-branded search portal. (It should probably be a separate bug report to recognise these.)
Yep, that's right. Virgin and talktalk have used a service like barefruit in the past. BT have their own, hosted on ttp://www.webaddresshelp.bt.com.
We turned it off on the A&A lines.
Is a DNS Error status only ever shown when a site couldn't be found? Or are there other times when we could get DNS Error?
We sometimes get SERVFAIL or REFUSED responses from an authoritative nameserver, in the absence of a cached record nearer to the probes. They don't happen too often and tend to be temporary misconfigurations or unavailable servers.
I'm not seeing the tooltip on the example page I gave originally https://www.blocked.org.uk/site/http://not-a-real-domain-aerg4rhafsd.com
On a result page for a non-existent domain like this here, we use "DNS Error" for the status.
Can we put a tooltip in to explain what that means?
If there's just a name for the status that is easier to understand and means we don't need a tooltip then that would be better.