ichotelsgroup.com

Checked 22 October 2026, 09:15 UTC · via 8.8.8.8
!Passed with warnings
22 passed 5 warnings 0 failed 4 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-01-02

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
2 January 2003
Last changed
1 December 2025
Expires
2 January 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
a1-131.akam.net, a16-66.akam.net, a26-67.akam.net, a28-64.akam.net, a5-65.akam.net, a9-66.akam.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 2027-01-02 #3
    The registration is valid until 2027-01-02 (72 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

a1-131.akam.net, a16-66.akam.net, a26-67.akam.net, a28-64.akam.net, a5-65.akam.net, a9-66.akam.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
a1-131.akam.net, a16-66.akam.net, a26-67.akam.net, a28-64.akam.net, a5-65.akam.net, a9-66.akam.net
NS in the zone
a1-131.akam.net, a16-66.akam.net, a26-67.akam.net, a4-64.akam.net, a5-65.akam.net, a9-66.akam.net
NameserverAddressesNetwork (AS)Glue
a1-131.akam.net193.108.91.131 2600:1401:2::83AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a16-66.akam.net23.211.132.66 2600:1406:1b::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a26-67.akam.net23.74.25.67 2600:1480:b800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a28-64.akam.net (parent only)95.100.173.64 2600:1480:d800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a4-64.akam.net (zone only)72.246.46.64 2600:1480:9000::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a5-65.akam.net95.100.168.65 2600:1480:b000::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a9-66.akam.net184.85.248.66 2a02:26f0:117::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-131.akam.net, a16-66.akam.net, a26-67.akam.net, a28-64.akam.net, a5-65.akam.net, a9-66.akam.net.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: a28-64.akam.net; only in the zone: a4-64.akam.net. a1-131.akam.net, a16-66.akam.net, a26-67.akam.net, a28-64.akam.net, a4-64.akam.net, a5-65.akam.net, a9-66.akam.net report NS a1-131.akam.net a16-66.akam.net a26-67.akam.net a4-64.akam.net a5-65.akam.net a9-66.akam.net.
    #7
  • ✓ 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 7 IPv4 /24s and 7 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 14 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 .net
    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

warn

14 of 14 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-131.akam.net 193.108.91.131NOERROR, 3 ms, authoritativenoyes / yesrefused41824.6
a1-131.akam.net 2600:1401:2::83NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a16-66.akam.net 23.211.132.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.27
a16-66.akam.net 2600:1406:1b::42NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33
a26-67.akam.net 23.74.25.67NOERROR, 3 ms, authoritativenoyes / yesrefused48878.26
a26-67.akam.net 2600:1480:b800::43NOERROR, 3 ms, authoritativenoyes / yesrefused48878.32
a28-64.akam.net 95.100.173.64NOERROR, 5 ms, authoritativenoyes / yesrefused48878.29
a28-64.akam.net 2600:1480:d800::40NOERROR, 3 ms, authoritativenoyes / yesrefused48878.30
a4-64.akam.net 72.246.46.64NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a4-64.akam.net 2600:1480:9000::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.26
a5-65.akam.net 95.100.168.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.6
a5-65.akam.net 2600:1480:b000::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.5
a9-66.akam.net 184.85.248.66NOERROR, 3 ms, authoritativenoyes / yesrefused41824.6
a9-66.akam.net 2a02:26f0:117::42NOERROR, 4 ms, authoritativenoyes / yesrefused41824.6

Checks

  • ✓ All respond #14
    All 14 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-131.akam.net: "41824.6"; a1-131.akam.net: "41824.7"; a16-66.akam.net: "48878.27"; a16-66.akam.net: "48878.33"; a26-67.akam.net: "48878.26"; a26-67.akam.net: "48878.32"; a28-64.akam.net: "48878.29"; a28-64.akam.net: "48878.30"; a4-64.akam.net: "48878.32"; a4-64.akam.net: "48878.26"; a5-65.akam.net: "41824.6"; a5-65.akam.net: "41824.5"; a9-66.akam.net: "41824.6". Hide or replace the version string.
    #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 2015051485 · primary a1-131.akam.net

Found

Primary (MNAME)
a1-131.akam.net
Contact (RNAME)
hostmaster.akamai.com
Serial
2015051485
Refresh / retry
86400 s / 7200 s
Expire
2419200 s
Negative TTL
172800 s

Serial per nameserver

NameserverSerial
a1-131.akam.net (193.108.91.131)2015051485
a1-131.akam.net (2600:1401:2::83)2015051485
a16-66.akam.net (23.211.132.66)2015051485
a16-66.akam.net (2600:1406:1b::42)2015051485
a26-67.akam.net (23.74.25.67)2015051485
a26-67.akam.net (2600:1480:b800::43)2015051485
a28-64.akam.net (95.100.173.64)2015051485
a28-64.akam.net (2600:1480:d800::40)2015051485
a4-64.akam.net (72.246.46.64)2015051485
a4-64.akam.net (2600:1480:9000::40)2015051485
a5-65.akam.net (95.100.168.65)2015051485
a5-65.akam.net (2600:1480:b000::41)2015051485
a9-66.akam.net (184.85.248.66)2015051485
a9-66.akam.net (2a02:26f0:117::42)2015051485

Checks

  • ✓ Serial 2015051485 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 2d is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1d, retry 2h, expire 28d, negative TTL 2d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-131.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@akamai.com #25
    The SOA RNAME hostmaster.akamai.com means hostmaster@akamai.com.
  • ✓ Date-based serial #26
    The serial 2015051485 follows the YYYYMMDDnn convention (2015-05-14).

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
193.108.91.131:53
TypeValueTTL
SOAa1-131.akam.net. hostmaster.akamai.com. 2015051485 86400 7200 2419200 1728003600
NSa16-66.akam.net.600
NSa9-66.akam.net.600
NSa26-67.akam.net.600
NSa5-65.akam.net.600
NSa1-131.akam.net.600
NSa4-64.akam.net.600
A2.16.204.15920
A2.16.204.15320
AAAA2a02:26f0:b700:5::210:cc1b20
AAAA2a02:26f0:b700:5::210:cc0a20
MX0 mxa-0036c501.gslb.pphosted.com.300
MX0 mxb-0036c501.gslb.pphosted.com.300
TXT"v=spf1 include:_spf.google.com mx ptr a:dcb.ichotelsgroup.com a:imedg1.ichotelsgroup.com a:imedg2.ichotelsgroup.com mx:imedg1.ichotelsgroup.com mx:imedg2.ichotelsgroup.com ip4:148.163.135.129 ip4:148.163.139.129 ~all"600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s). 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