Domain report: tuv-at.be

Registration

info

.be country-code

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.be 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

.be 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 .be offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.

#3

warn

ns1.tuev-a.at, ns3.tuv.at

Nameserver	Addresses	Network (AS)	Glue
ns1.tuev-a.at	194.242.41.131	AS20684 TUEV-AS - TUEV AUSTRIA HOLDING AG, AT	-
ns3.tuv.at	80.121.144.3	AS8447 A1TELEKOM-AT - A1 Telekom Austria AG, AT	-

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.tuev-a.at, ns3.tuv.at.

#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 0 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS20684 (TUEV-AS - TUEV AUSTRIA HOLDING AG, AT): 1 address; AS8447 (A1TELEKOM-AT - A1 Telekom Austria AG, AT): 1 address.
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All nameserver names under .at

All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.

#12
!

No IPv6

None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

#13

info

2 of 2 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.tuev-a.at 194.242.41.131	NOERROR, 10 ms, authoritative	no	yes / yes	refused	Not implemented
ns3.tuv.at 80.121.144.3	NOERROR, 12 ms, authoritative	no	yes / yes	refused	Not implemented

✓ All respond #14

All 2 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: ns1.tuev-a.at: "Not implemented"; ns3.tuv.at: "Not implemented".

#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.

warn

serial 2018061417 · primary ns1.tuev-a.at

Nameserver	Serial
ns1.tuev-a.at (194.242.41.131)	2018061417
ns3.tuv.at (80.121.144.3)	2018061417

✓ Serial 2018061417 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 7d, negative TTL 1h.

#23
✓ Primary is a public nameserver #24

The primary nameserver ns1.tuev-a.at is one of the listed nameservers.
✓ Contact domain@tuv.at #25

The SOA RNAME domain.tuv.at means domain@tuv.at.
✓ Date-based serial #26

The serial 2018061417 follows the YYYYMMDDnn convention (2018-06-14).

warn

Not signed

info

6 records at the apex

✓ TTLs within range #32

TTLs: A 1h, MX 1h, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
✓ No wildcard #34

Names that don't exist return NXDOMAIN.
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No CAA records

Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.

#35