Hi Markus
Thank for the hint regarding the delv tool.
The issue is back this morning:
$ delv @dns1.swizzonic.ch www.numberportability.ch ;; chase DS servers resolving 'numberportability.ch/DS/IN': 2a01:8100:2901::1:183:201#53 ;; REFUSED unexpected RCODE resolving 'ch/NS/IN': 195.110.124.196#53 ;; REFUSED unexpected RCODE resolving 'ch/NS/IN': 2a01:8100:2901::1:183:201#53 ;; REFUSED unexpected RCODE resolving './NS/IN': 195.110.124.196#53 ;; REFUSED unexpected RCODE resolving './NS/IN': 2a01:8100:2901::1:183:201#53 ;; REFUSED unexpected RCODE resolving 'ch/DS/IN': 2a01:8100:2901::1:183:201#53 ;; REFUSED unexpected RCODE resolving 'ch/DS/IN': 195.110.124.196#53 ;; broken trust chain resolving 'numberportability.ch/DNSKEY/IN': 195.110.124.196#53 ;; broken trust chain resolving 'www.numberportability.ch/A/IN': 2a01:8100:2901::1:183:201#53 ;; resolution failed: broken trust chain
Does anyone have a contact to a DNS technician working @ Swizzonic. Preferably with a phone number.