Domain report: tuv.com

Registration

info

.com generic · InterNetX GmbH · expires 2027-05-21

Found

TLD: .com (generic)
ICANN policies apply: yes
Registrar: InterNetX GmbH
Registered: 20 May 1994
Last changed: 22 May 2026
Expires: 21 May 2027
Status: client transfer prohibited
Registry nameservers: emea-ns1.tuv.com, emea-ns2.tuv.com
RDAP server: https://rdap.verisign.com/com/v1/

Checks

i

.com is a generic TLD (gTLD)

Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.

#1
✓ TLD delegated and signed #2

.com is delegated in the root zone and DNSSEC-signed.
✓ Expires on 2027-05-21 #3

The registration is valid until 2027-05-21 (210 days).
✓ Transfer locked #4

Registry status: client transfer prohibited.
✓ Registry and delegation match #5

The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

emea-ns1.tuv.com, emea-ns2.tuv.com

Found

Parent zone: com
Delegation from: a.gtld-servers.net (192.5.6.30)
NS at the parent: emea-ns1.tuv.com, emea-ns2.tuv.com
NS in the zone: emea-ns1.tuv.com, emea-ns2.tuv.com

Nameserver	Addresses	Network (AS)	Glue
emea-ns1.tuv.com	195.20.221.162	AS42249 TUEV_RHEINLAND_AS - TUEV Rheinland Service GmbH, DE	195.20.221.162
emea-ns2.tuv.com	195.20.221.163	AS42249 TUEV_RHEINLAND_AS - TUEV Rheinland Service GmbH, DE	195.20.221.163

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: emea-ns1.tuv.com, emea-ns2.tuv.com.

#6
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ Glue present and correct #8

Glue is published for the nameservers inside the zone: emea-ns1.tuv.com, emea-ns2.tuv.com.
✓ All names resolve #9

Every nameserver name has an address and is not an alias.
!

Nameservers in one network

all IPv4 addresses are in 195.20.221.0/24. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).

#10
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS42249 (TUEV_RHEINLAND_AS - TUEV Rheinland Service GmbH, DE): 2 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
i

All nameserver names under .com

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

Nameservers

pass

2 of 2 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
emea-ns1.tuv.com 195.20.221.162	NOERROR, 13 ms, authoritative	no	yes / yes	refused	-
emea-ns2.tuv.com 195.20.221.163	NOERROR, 8 ms, authoritative	no	yes / yes	refused	-

Checks

✓ 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.
✓ No version disclosed #17

The nameservers don't reveal their software version.
✓ 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.

SOA

pass

serial 2026102002 · primary emea-ns1.tuv.com

Found

Primary (MNAME): emea-ns1.tuv.com
Contact (RNAME): dns-admin.tuv.com
Serial: 2026102002
Refresh / retry: 10800 s / 3600 s
Expire: 1209600 s
Negative TTL: 14400 s

Serial per nameserver

Nameserver	Serial
emea-ns1.tuv.com (195.20.221.162)	2026102002
emea-ns2.tuv.com (195.20.221.163)	2026102002

Checks

✓ Serial 2026102002 everywhere #22

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

SOA refresh 3h, retry 1h, expire 14d, negative TTL 4h.
✓ Primary is a public nameserver #24

The primary nameserver emea-ns1.tuv.com is one of the listed nameservers.
✓ Contact dns-admin@tuv.com #25

The SOA RNAME dns-admin.tuv.com means dns-admin@tuv.com.
✓ Date-based serial #26

The serial 2026102002 follows the YYYYMMDDnn convention (2026-10-20).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC3
NSEC3: 0 iterations, 0-byte salt
Signatures valid until: 5 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
46998	ECDSAP256SHA256 (13)	SHA256 6C7885C294F18C1B…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
46998	KSK (257)	ECDSAP256SHA256 (13)

Checks

✓ Signed and validated #27

The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
✓ DS matches a key #28

The DS record at the parent matches a key in the zone: key tag 46998 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Signatures valid until 2026-11-05 #30

The earliest DNSKEY/SOA signature expires at 2026-11-05 00:00 UTC.
✓ NSEC3 as recommended #31

The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

29 records at the apex

Found

Read from: 195.20.221.162:53

Type	Value	TTL
SOA	emea-ns1.tuv.com. dns-admin.tuv.com. 2026102002 10800 3600 1209600 14400	86400
NS	emea-ns1.tuv.com.	172800
NS	emea-ns2.tuv.com.	172800
A	195.20.221.164	3600
MX	10 mxb-0058f602.gslb.pphosted.com.	1800
MX	10 mxa-0058f602.gslb.pphosted.com.	1800
TXT	"k25GDPqE/30NvC4Tps78My+UGAl0ZbbvWFNVoqmew1qPScpoT8GGIgeRi/OA7qi/6UNW4GqsbW0w3KKwQPuN/w=="	3600
TXT	"00D0N000000iROk=1TBbG00000004GX"	3600
TXT	"atlassian-domain-verification=Mjgapu6byLFHSPGrf/uuiPwJmMKPAXSdF9OXRX7Tt0By6OqEFFhu2CSCGUPI7HT8"	3600
TXT	"D-TRUST=R5EUJU7P8UZZMRG2NJ2873R"	3600
TXT	"v=spf1 ip4:195.20.220.192/32 ip4:195.20.220.193/32 ip4:143.244.121.143/32 ip4:103.19.38.105/32 ip4:195.20.220.234/32 include:docebosaas.com include:_spf-dc12.successfactors.com include:spf-0058f602.pphosted.com ?all"	3600
TXT	"teamviewer-sso-verification=e3cddb63ca5547838a60c7f9907d360b"	3600
TXT	"google-site-verification=l4Ek3vyansSus4_7fmcr5R1LQDxc-kAz3tejImKQLxs"	3600
TXT	"wiz-domain-verification=034f4bee1bf20e794442932e969c665ea72376512018ae1ae415b2be7dd932e9"	3600
TXT	"miro-verification=11229ad7760026997dc67af1d8c0041301e8b555"	3600
TXT	"adobe-idp-site-verification=d74fc436-de11-4042-b67e-9dd15385f797"	3600
CAA	0 issue "globalsign.com"	3600
CAA	0 issue "actalis.com"	3600
CAA	0 issue "digicert.com"	3600
CAA	0 issue "sectigo.com"	3600
CAA	0 contactemail "domain-validation@de.tuv.com"	3600
CAA	0 iodef "mailto:netop@tuv.com"	3600
CAA	0 issue "d-trust.de"	3600
CAA	0 issue "actalis.it"	3600
CAA	0 issue "letsencrypt.org"	3600
CAA	0 issue "d-trust.net"	3600
CAA	0 issuewild "d-trust.net"	3600
CAA	0 issuewild "d-trust.de"	3600
CAA	0 issue "amazon.com"	3600

Checks

✓ TTLs within range #32

TTLs: A 1h, MX 30m, NS 2d.
✓ No CNAME at the apex #33

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

Names that don't exist return NXDOMAIN.
✓ CAA restricts issuance #35

Certificates may be issued by: globalsign.com, actalis.com, digicert.com, sectigo.com, d-trust.de, actalis.it, letsencrypt.org, d-trust.net, amazon.com.