HTTPfy

IONOS DNS

IONOS DNS serves DNS for 21 of 9,971 popular domains we measured in November 2026.

0.2%of measured domains21 of 9,971

33.3%customers signed with DNSSECDS record at the parent zone

33.3%customers publish CAA

0other providers paired with itmulti-provider setups

IONOS DNS customers compared with all domains

Accent bars: 21 domains on IONOS DNS. Grey bars: all 9,971 measured domains.

DNSSEC signed 33.3%

all measured 10.6%

CAA record 33.3%

all measured 20.7%

DMARC enforced 61.9%

all measured 50.9%

HSTS on HTTPS 85.7%

all measured 56.4%

Name servers

NS host pattern seen	Domains
`ns<n>.ui-dns.de`	6
`ns<n>.ui-dns.com`	6
`ns<n>.ui-dns.org`	6
`ns<n>.ui-dns.biz`	6
`ns-<n>and<n>.ui-dns.de`	4
`ns-<n>and<n>.ui-dns.org`	4
`ns-<n>and<n>.ui-dns.com`	4
`ns-<n>and<n>.ui-dns.biz`	4

To move a domain to IONOS DNS, create the zone there first, copy every record, then replace the NS records at your registrar with the names it assigns. If the domain is signed, update the DS record at the registrar as part of the move.

Provider site: https://www.ionos.com/

Well-known domains on IONOS DNS

ui-dns.comgmx.netionos.derzone.destrato.deweb.demam.devmail.com1und1.deservidoresdns.netconnman.netijg.org

Check one yourself:

Inspect DNSSEC Look up NS records Full DNS report

Source: our own scan of November 2026 (2026-11-11), 9,971 of the top 10,000 domains of the Tranco list Y895G that answered in DNS. Method and data.