vinepair.com

Checked 22 October 2026, 11:22 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · NameCheap, Inc. · expires 2027-10-14

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
NameCheap, Inc.
Registered
14 October 2012
Last changed
14 September 2026
Expires
14 October 2027
Status
client transfer prohibited
Registry nameservers
pdns1.registrar-servers.com, pdns2.registrar-servers.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 2027-10-14 #3
    The registration is valid until 2027-10-14 (357 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

info

pdns1.registrar-servers.com, pdns2.registrar-servers.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
pdns1.registrar-servers.com, pdns2.registrar-servers.com
NS in the zone
pdns1.registrar-servers.com, pdns2.registrar-servers.com
NameserverAddressesNetwork (AS)Glue
pdns1.registrar-servers.com156.154.132.100 2610:a1:1024::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US156.154.132.100 2610:a1:1024::100
pdns2.registrar-servers.com156.154.133.100 2610:a1:1025::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US156.154.133.100 2610:a1:1025::100

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: pdns1.registrar-servers.com, pdns2.registrar-servers.com.
    #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.
  • i
    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
  • 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
pdns1.registrar-servers.com 156.154.132.100NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns1.registrar-servers.com 2610:a1:1024::100NOERROR, 32 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns2.registrar-servers.com 156.154.133.100NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
pdns2.registrar-servers.com 2610:a1:1025::100NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

Checks

  • ✓ 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: pdns1.registrar-servers.com: "UltraDNS Nameserver"; pdns2.registrar-servers.com: "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.

SOA

pass

serial 1750451556 · primary pdns1.registrar-servers.com

Found

Primary (MNAME)
pdns1.registrar-servers.com
Contact (RNAME)
hostmaster.registrar-servers.com
Serial
1750451556
Refresh / retry
43200 s / 3600 s
Expire
604800 s
Negative TTL
3601 s

Serial per nameserver

NameserverSerial
pdns1.registrar-servers.com (156.154.132.100)1750451556
pdns1.registrar-servers.com (2610:a1:1024::100)1750451556
pdns2.registrar-servers.com (156.154.133.100)1750451556
pdns2.registrar-servers.com (2610:a1:1025::100)1750451556

Checks

  • ✓ Serial 1750451556 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 1h, expire 7d, negative TTL 1h0m1s.
  • ✓ Primary is a public nameserver #24
    The primary nameserver pdns1.registrar-servers.com is one of the listed nameservers.
  • ✓ Contact hostmaster@registrar-servers.com #25
    The SOA RNAME hostmaster.registrar-servers.com means hostmaster@registrar-servers.com.
  • ✓ Timestamp serial #26
    The serial 1750451556 is a Unix timestamp (2025-06-20 20:32 UTC).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

warn

14 records at the apex

Found

Read from
156.154.132.100:53
TypeValueTTL
SOApdns1.registrar-servers.com. hostmaster.registrar-servers.com. 1750451556 43200 3600 604800 36013601
NSpdns1.registrar-servers.com.1800
NSpdns2.registrar-servers.com.1800
A141.193.213.2160
A141.193.213.2060
MX1 aspmx.l.google.com.60
MX5 alt1.aspmx.l.google.com.60
MX5 alt2.aspmx.l.google.com.60
MX10 aspmx2.googlemail.com.60
MX10 aspmx3.googlemail.com.60
TXT"facebook-domain-verification=kxlkcovyk977ik744s03hbm5934z4w"300
TXT"v=spf1 include:_spf.google.com include:servers.mcsv.net ~all"300
TXT"google-site-verification=dEa9EReLp0jlL5bTWHsRLuneycFuM9AvJwbNje3HhwI"300
TXT"prowly-verification=a5031003f046fcdd713243e9741c9b1cb402cc1c10d83fb51415a2567df306e6"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), MX (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 30m; resolvers may use either.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    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