Domain report: britishcouncil.de

Registration

info

.de country-code

i

.de is a country-code TLD (ccTLD)

Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.

#1
✓ TLD delegated and signed #2

.de is delegated in the root zone and DNSSEC-signed.
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Registration data not available

No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.

#3

info

udns1.cscdns.net, udns2.cscdns.uk

Nameserver	Addresses	Network (AS)	Glue
udns1.cscdns.net	204.74.66.1 2001:502:f3ff::201	AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US	-
udns2.cscdns.uk	204.74.111.1 2001:502:4612::201	AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US	-

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: udns1.cscdns.net, udns2.cscdns.uk.

#6
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ No glue needed #8

All nameservers are outside the zone, so no glue records are needed.
✓ All names resolve #9

Every nameserver name has an address and is not an alias.
✓ Nameservers in different networks #10

The nameservers are spread over 2 IPv4 /24s and 2 IPv6 /48s.
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS12008 (VERCARA - Vercara, LLC, US): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
✓ Nameserver names under 2 TLDs #12

Nameserver names use the TLDs .net, .uk.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

info

4 of 4 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
udns1.cscdns.net 204.74.66.1	NOERROR, 3 ms, authoritative	no	yes / yes	refused	UltraDNS Nameserver
udns1.cscdns.net 2001:502:f3ff::201	NOERROR, 3 ms, authoritative	no	yes / yes	refused	UltraDNS Nameserver
udns2.cscdns.uk 204.74.111.1	NOERROR, 13 ms, authoritative	no	yes / yes	refused	UltraDNS Nameserver
udns2.cscdns.uk 2001:502:4612::201	NOERROR, 31 ms, authoritative	no	yes / yes	refused	UltraDNS Nameserver

✓ All respond #14

All 4 nameserver addresses answered.
✓ All authoritative #15

Every responding nameserver answers authoritatively for the zone.
✓ No recursion #16

The nameservers do not answer recursive queries for other domains.
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Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: udns1.cscdns.net: "UltraDNS Nameserver"; udns2.cscdns.uk: "UltraDNS Nameserver".

#17
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✓ TCP supported #19

All nameservers answer over TCP.
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

pass

serial 2018073272 · primary udns1.cscdns.net

✓ Serial 2018073272 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 1d, retry 30m, expire 1000h, negative TTL 1d.
✓ Primary is a public nameserver #24

The primary nameserver udns1.cscdns.net is one of the listed nameservers.
✓ Contact hostmaster@cscdns.net #25

The SOA RNAME hostmaster.cscdns.net means hostmaster@cscdns.net.
✓ Timestamp serial #26

The serial 2018073272 is a Unix timestamp (2033-12-13 07:54 UTC).

warn

Signed, but no DS at parent

!

Signed but not delegated securely

The zone is signed but the parent has no DS record, so the signatures are not used. Publish the DS record at your registrar.

#27
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Signatures valid until 2026-11-01 #30

The earliest DNSKEY/SOA signature expires at 2026-11-01 08:32 UTC.
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NSEC

The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.

#31

warn

16 records at the apex

Type	Value	TTL
SOA	udns1.cscdns.net. hostmaster.cscdns.net. 2018073272 86400 1800 3600000 86400	21600
NS	udns1.cscdns.net.	86400
NS	udns2.cscdns.uk.	86400
A	23.55.161.53	4
A	23.55.161.75	4
MX	10 britishcouncil-de.mail.protection.outlook.com.	86400
TXT	"MS=ms12245930"	86400
TXT	"docusign=f5ae8d6e-bd8d-4337-983d-2d4a3c35900d"	86400
TXT	"facebook-domain-verification=0txqglt9apbfncewcuujkrmplhn3t4"	86400
TXT	"google-site-verification=igJ9yNFhLPfnA8yY8VatePIAaU-n-sZfT45-oBgqZw4"	86400
TXT	"ltrpXBhwaBPu71uZMn4Fi+FpyK7cnjRvEK1qENh/ER2THSTT1I8gHFJkniWIqtWj2R8gipLumRzs+NJEtMTGpQ=="	86400
TXT	"atlassian-domain-verification=33ikTgnfsuT67cLnfuaf17SCEpiEB8P1hGm74dZxq5KcGh/L67sxcPHqtEnB43Fi"	86400
TXT	"atlassian-domain-verification=oIwQZaz/MRtMsmoTYe5W6WLa1J3fT6UJkyvv2JrBnFsQ/wyfiNSdMcnzqZ7GDHGP"	86400
TXT	"v=DMARC1; p=none; rua=mailto:fkwre5pq3l@rua.powerdmarc.com,mailto:dmarc_agg@vali.email; ruf=mailto:fkwre5pq3l@ruf.powerdmarc.com; fo=1; pct=100"	86400
TXT	"k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCh2pWzHoMNBbtc8q4i0ZZIRFaZA+LUGNXL+y3I3cG4YpHn4LA1DkC29ko+6l0oZ1IoBY9YMfjNq3Ak0/baA8rxjdMk9ra3pppxGzYBGaF0nXDqRRlv0uGdMiZ1HlrgIp1cvZ/PYs6RnrFYkQkBE0v5zozxApEJkB+dk4gh2hIxfwIDAQAB"	86400
TXT	"v=spf1 ip4:52.18.23.154 ip4:52.18.43.91 ip4:52.17.241.150 ip4:52.18.16.92 ip4:52.18.25.116 ip4:52.18.36.148 include:spf.protection.outlook.com include:spf.messagelabs.com include:_spf.salesforce.com include:_spf.createsend.com -all"	86400