wpbookingcalendar.com

Checked 22 October 2026, 11:33 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 2 info

Registration

info

.com generic · NameCheap, Inc. · expires 2033-12-25

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
NameCheap, Inc.
Registered
25 December 2011
Last changed
31 July 2024
Expires
25 December 2033
Status
client transfer prohibited
Registry nameservers
dns.fastdns24.com, dns2.fastdns24.org, dns3.fastdns24.eu, dns4.fastdns24.link
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 2033-12-25 #3
    The registration is valid until 2033-12-25 (2621 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

dns.fastdns24.com, dns2.fastdns24.org, dns3.fastdns24.eu, dns4.fastdns24.link

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns.fastdns24.com, dns2.fastdns24.org, dns3.fastdns24.eu, dns4.fastdns24.link
NS in the zone
dns.fastdns24.com, dns2.fastdns24.org, dns3.fastdns24.eu, dns4.fastdns24.link
NameserverAddressesNetwork (AS)Glue
dns.fastdns24.com176.31.3.154 2001:41d0:1004:3000::2AS16276 OVH - OVH SAS, FR AS16276 OVH - OVH SAS, FR95.211.92.15
dns2.fastdns24.org5.188.30.150 2a01:5a60:5::63AS200487 OOOVPS-AS - OOO VPS, RU AS200487 OOOVPS-AS - OOO VPS, RU-
dns3.fastdns24.eu136.243.223.232 2a01:4f8:212:c16::4AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
dns4.fastdns24.link95.216.25.5 2a01:4f9:2a:195a::4AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-

Checks

  • ✓ 4 nameservers #6
    Delegated to dns.fastdns24.com, dns2.fastdns24.org, dns3.fastdns24.eu, dns4.fastdns24.link.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: dns.fastdns24.com (glue 95.211.92.15, zone 176.31.3.154, 2001:41d0:1004:3000::2). Update the glue at your registrar.
    #8
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS16276 (OVH - OVH SAS, FR): 2 addresses; AS200487 (OOOVPS-AS - OOO VPS, RU): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 4 addresses.
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .com, .eu, .link, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns.fastdns24.com 176.31.3.154NOERROR, 17 ms, authoritativenoyes / yesrefused-
dns.fastdns24.com 2001:41d0:1004:3000::2NOERROR, 16 ms, authoritativenoyes / yesrefused-
dns2.fastdns24.org 5.188.30.150NOERROR, 46 ms, authoritativenoyes / yesrefused-
dns2.fastdns24.org 2a01:5a60:5::63NOERROR, 36 ms, authoritativenoyes / yesrefused-
dns3.fastdns24.eu 136.243.223.232NOERROR, 3 ms, authoritativenoyes / yesrefused-
dns3.fastdns24.eu 2a01:4f8:212:c16::4NOERROR, 3 ms, authoritativenoyes / yesrefused-
dns4.fastdns24.link 95.216.25.5NOERROR, 25 ms, authoritativenoyes / yesrefused-
dns4.fastdns24.link 2a01:4f9:2a:195a::4NOERROR, 24 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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 2023031802 · primary dns.fastdns24.com

Found

Primary (MNAME)
dns.fastdns24.com
Contact (RNAME)
support.fastvps.hosting
Serial
2023031802
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns.fastdns24.com (176.31.3.154)2023031802
dns.fastdns24.com (2001:41d0:1004:3000::2)2023031802
dns2.fastdns24.org (5.188.30.150)2023031802
dns2.fastdns24.org (2a01:5a60:5::63)2023031802
dns3.fastdns24.eu (136.243.223.232)2023031802
dns3.fastdns24.eu (2a01:4f8:212:c16::4)2023031802
dns4.fastdns24.link (95.216.25.5)2023031802
dns4.fastdns24.link (2a01:4f9:2a:195a::4)2023031802

Checks

  • ✓ Serial 2023031802 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns.fastdns24.com is one of the listed nameservers.
  • ✓ Contact support@fastvps.hosting #25
    The SOA RNAME support.fastvps.hosting means support@fastvps.hosting.
  • ✓ Date-based serial #26
    The serial 2023031802 follows the YYYYMMDDnn convention (2023-03-18).

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

info

8 records at the apex

Found

Read from
176.31.3.154:53
TypeValueTTL
SOAdns.fastdns24.com. support.fastvps.hosting. 2023031802 10800 3600 604800 36003599
NSdns3.fastdns24.eu.3599
NSdns4.fastdns24.link.3599
NSdns.fastdns24.com.3599
NSdns2.fastdns24.org.3599
A94.130.161.373600
MX10 mail.wpbookingcalendar.com.3600
TXT"v=spf1 ip4:94.130.161.37 ~all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 59m59s. The NS TTL at the parent is 2d and in the zone 59m59s; 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.
  • 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