royalmail.com

Checked 22 October 2026, 10:32 UTC · via 8.8.8.8
!Passed with warnings
23 passed 4 warnings 0 failed 4 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-09-11

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
12 September 1995
Last changed
7 September 2026
Expires
11 September 2027
Status
client transfer prohibited
Registry nameservers
dns1.consignia.com, dns2.consignia.com, ns1.bt.net
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 2027-09-11 #3
    The registration is valid until 2027-09-11 (323 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

dns1.consignia.com, dns2.consignia.com, ns1.bt.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns1.consignia.com, dns2.consignia.com, ns1.bt.net
NS in the zone
dns1.consignia.com, dns2.consignia.com, ns1.bt.net
NameserverAddressesNetwork (AS)Glue
dns1.consignia.com144.87.143.77AS2856 BT-UK-AS - British Telecommunications Limited, GB144.87.143.77
dns2.consignia.com144.87.143.78AS2856 BT-UK-AS - British Telecommunications Limited, GB144.87.143.78
ns1.bt.net217.32.105.91AS2856 BT-UK-AS - British Telecommunications Limited, GB-

Checks

  • ✓ 3 nameservers #6
    Delegated to dns1.consignia.com, dns2.consignia.com, ns1.bt.net.
  • ✓ 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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS2856 (BT-UK-AS - British Telecommunications Limited, GB): 3 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 .com, .net.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

info

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.consignia.com 144.87.143.77NOERROR, 30 ms, authoritativenoyes / yesrefused-
dns2.consignia.com 144.87.143.78NOERROR, 32 ms, authoritativenoyes / yesrefused-
ns1.bt.net 217.32.105.91NOERROR, 27 ms, authoritativenoyes / yesrefusedgo away

Checks

  • ✓ All respond #14
    All 3 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: ns1.bt.net: "go away".
    #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

warn

serial 2007012966 · primary dns1.consignia.com

Found

Primary (MNAME)
dns1.consignia.com
Contact (RNAME)
hostmaster.consignia.com
Serial
2007012966
Refresh / retry
600 s / 600 s
Expire
604800 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
dns1.consignia.com (144.87.143.77)2007012966
dns2.consignia.com (144.87.143.78)2007012966
ns1.bt.net (217.32.105.91)2007012966

Checks

  • ✓ Serial 2007012966 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 10m is outside 20m–1d; retry 10m should be shorter than refresh 10m. Current values: refresh 10m, retry 10m, expire 7d, negative TTL 10m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.consignia.com is one of the listed nameservers.
  • ✓ Contact hostmaster@consignia.com #25
    The SOA RNAME hostmaster.consignia.com means hostmaster@consignia.com.
  • ✓ Date-based serial #26
    The serial 2007012966 follows the YYYYMMDDnn convention (2007-01-29).

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

23 records at the apex

Found

Read from
144.87.143.77:53
TypeValueTTL
SOAdns1.consignia.com. hostmaster.consignia.com. 2007012966 600 600 604800 600600
NSdns1.consignia.com.600
NSns1.bt.net.600
NSdns2.consignia.com.600
A77.95.81.226600
MX10 royalmail-com.mail.protection.outlook.com.60
TXT"google-site-verification=mPPxSSOKErAnW-K7QuEZBgbNaIxwpyxJRJWrI1r-ULY"600
TXT"google-site-verification=LCfhnac7B5vwy8rfL5kPU05WqiMgMwFteMyoWEQB2bk"600
TXT"MS=ms65356394"300
TXT"f5ae2424-16a6-4999-b5b2-bcf89a93769b"600
TXT"apple-domain-verification=GnXEF0H93q6lygiD"600
TXT"v=spf1 ip4:157.203.56.0/22 ip4:208.72.90.64/26 ip4:134.213.149.92/32 ip4:144.87.143.0/24 ip4:146.101.28.221/32 ip4:147.29.39.0/24 " "ip4:157.203.0.0/27 ip4:20.90.138.231/32 ip4:185.29.44.6/32 ip4:191.233.96.0/20 ip4:194.140.251.4/32 ip4:208.185.235.44/32 " "ip4:209.135.36.206/32 ip4:209.167.231.208/26 ip4:212.64.130.137/32 ip4:217.64.224.67/32 ip4:35.157.226.52/32 ip4:94.46.185.189/32 " "ip4:52.50.253.173/32 ip4:54.171.224.250/32 ip4:62.209.53.0/24 ip4:79.125.0.0/17 ip4:81.138.21.4/32 ip4:81.171.203.0/24 " "ip4:82.147.17.34/32 ip4:94.126.110.195/32 ip4:146.177.43.198/32 ip4:5.61.115.80/26 ip4:217.64.233.50 ip4:217.64.233.52 " "ip4:81.149.233.242 ip4:162.13.103.194 ip4:149.72.233.190 ip4:149.72.224.180 ip4:35.214.208.81/32 ip4:35.214.213.218/32 " "ip4:35.214.183.81/32 ip4:213.52.186.141/32 ip4:213.52.186.142/32 ip4:35.214.212.238/32 ip4:129.152.0.0/17 ip4:85.158.136.0/21 " "ip4:195.245.230.0/23 ip4:67.219.240.0/20 ip4:5.61.115.32/28 include:spf.mandrillapp.com include:amazonses.com " "include:spf.protection.outlook.com include:_spf.salesforce.com -all"600
TXT"onetrust-domain-verification=419a915a023346e19486e0cd47f6a83c"600
TXT"MS=ms71783426"3600
TXT"so4e1v2hi81j9r3h1nl7s2tc9h"600
TXT"access-domain-verification=e2602dab5e6377e9345fa3cee7dcfa5ea185239105373e0299519c14e78bd780"600
TXT"access-domain-verification=e2602dab5e6377e9345fa3cee7dcfa5ea185239105373e0299519c14e78bd780" ""600
TXT"google-site-verification=MqeT05ffEOcQh7HPRTJesniXvl2K6oqKBiTUJRZuIV8"600
TXT"successfactors-site-verification=NDM1YTIxZWFmZWFhYTUzZDcxYzhjNzk4MTM4YTZlNmU2MDhlMzc0ZjNjOTIwNzhkYWM0ZDk0MWQ3OWJkZGU3OA=="600
TXT"onetrust-domain-verification=782202b84c44463ab05cf45ab862644b"600
TXT"brevo-code:03a47896a235e4b2aa4ff77b8245f224"600
TXT"atlassian-domain-verification=MLNu07lyiFp2hHCeKQg6qKAhggTIuOi/O5bpxZ831VQQSawSTLMtodtcSc2SrBdJ"600
TXT"workplace-domain-verification=BEJd6oynFk3ED6u0W4uAGMguAVnPKY"600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: MX (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 10m; 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