DNS problems with Orange, the worst technology company in existence

A while ago we needed to change the DNS records for our websites from A records to CNAMEs. Immediately after this we started getting dozens of calls from customers using Orange broadband who couldn’t get to our sites. Upon investigation, it looked as if the DNS change had triggered a problem caused by a bug or config error on Orange’s DNS cache servers; when trying to do a DNS lookup for our sites, the servers were trying to return the no-longer-existent A records instead of returning the new CNAMEs as they should have done. Consequently no Orange customers could get to our sites.

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