sgi.com

Checked 22 October 2026, 10:41 UTC · via 8.8.8.8
!Passed with warnings
23 passed 4 warnings 0 failed 4 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-05-11

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
10 May 1994
Last changed
9 April 2026
Expires
11 May 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns1.hpe.com, ns2.hpe.com, ns3.hpe.com, ns4.hpe.com, ns5.hpe.com, ns6.hpe.com, ns7.hpe.com, ns8.hpe.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 2027-05-11 #3
    The registration is valid until 2027-05-11 (200 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

ns1.hpe.com, ns2.hpe.com, ns3.hpe.com, ns4.hpe.com, ns5.hpe.com, ns6.hpe.com, ns7.hpe.com, ns8.hpe.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.hpe.com, ns2.hpe.com, ns3.hpe.com, ns4.hpe.com, ns5.hpe.com, ns6.hpe.com, ns7.hpe.com, ns8.hpe.com
NS in the zone
ns1.hpe.com, ns2.hpe.com, ns3.hpe.com, ns4.hpe.com, ns5.hpe.com, ns6.hpe.com, ns7.hpe.com, ns8.hpe.com
NameserverAddressesNetwork (AS)Glue
ns1.hpe.com192.170.12.194AS2165 HPINC - HP Inc., US192.170.12.194
ns2.hpe.com16.2.141.20AS13013 Hewlett-Packard-Enterprise-Maidstone - Hewlett Packard France S.A.S., FR16.2.148.110
ns3.hpe.com192.170.11.194AS2165 HPINC - HP Inc., US192.170.11.194
ns4.hpe.com16.2.132.115AS13014 HEWLETT-PACKARD-ENTERPRISE-APJ - Hewlett Packard France S.A.S., FR16.2.132.115
ns5.hpe.com16.2.148.110AS13013 Hewlett-Packard-Enterprise-Maidstone - Hewlett Packard France S.A.S., FR16.2.141.20
ns6.hpe.com16.2.138.125AS13014 HEWLETT-PACKARD-ENTERPRISE-APJ - Hewlett Packard France S.A.S., FR16.2.138.125
ns7.hpe.com16.2.148.110AS13013 Hewlett-Packard-Enterprise-Maidstone - Hewlett Packard France S.A.S., FR192.170.11.194
ns8.hpe.com16.2.132.115AS13014 HEWLETT-PACKARD-ENTERPRISE-APJ - Hewlett Packard France S.A.S., FR192.170.12.194

Checks

  • ✓ 8 nameservers #6
    Delegated to ns1.hpe.com, ns2.hpe.com, ns3.hpe.com, ns4.hpe.com, ns5.hpe.com, ns6.hpe.com, ns7.hpe.com, ns8.hpe.com.
  • ✓ 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: ns2.hpe.com (glue 16.2.148.110, zone 16.2.141.20); ns5.hpe.com (glue 16.2.141.20, zone 16.2.148.110); ns7.hpe.com (glue 192.170.11.194, zone 16.2.148.110); ns8.hpe.com (glue 192.170.12.194, zone 16.2.132.115). 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 6 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS13013 (Hewlett-Packard-Enterprise-Maidstone - Hewlett Packard France S.A.S., FR): 3 addresses; AS13014 (HEWLETT-PACKARD-ENTERPRISE-APJ - Hewlett Packard France S.A.S., FR): 3 addresses; AS2165 (HPINC - HP Inc., US): 2 addresses.
  • 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

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.hpe.com 192.170.12.194NOERROR, 115 ms, authoritativenoyes / yesrefused-
ns2.hpe.com 16.2.141.20NOERROR, 25 ms, authoritativenoyes / yesrefused-
ns3.hpe.com 192.170.11.194NOERROR, 145 ms, authoritativenoyes / yesrefused-
ns4.hpe.com 16.2.132.115NOERROR, 237 ms, authoritativenoyes / yesrefused-
ns5.hpe.com 16.2.148.110NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns6.hpe.com 16.2.138.125NOERROR, 165 ms, authoritativenoyes / yesrefused-
ns7.hpe.com 16.2.148.110NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns8.hpe.com 16.2.132.115NOERROR, 237 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

warn

serial 20260434 · primary gva01hpeibdns0a.ext.hpecore.net

Found

Primary (MNAME)
gva01hpeibdns0a.ext.hpecore.net
Contact (RNAME)
ddi-hostmaster.groups.ext.hpe.com
Serial
20260434
Refresh / retry
3600 s / 3600 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
ns1.hpe.com (192.170.12.194)20260434
ns2.hpe.com (16.2.141.20)20260434
ns3.hpe.com (192.170.11.194)20260434
ns4.hpe.com (16.2.132.115)20260434
ns5.hpe.com (16.2.148.110)20260434
ns6.hpe.com (16.2.138.125)20260434
ns7.hpe.com (16.2.148.110)20260434
ns8.hpe.com (16.2.132.115)20260434

Checks

  • ✓ Serial 20260434 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 28d, negative TTL 15m.
    #23
  • i
    Hidden master
    The primary nameserver gva01hpeibdns0a.ext.hpecore.net is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact ddi-hostmaster@groups.ext.hpe.com #25
    The SOA RNAME ddi-hostmaster.groups.ext.hpe.com means ddi-hostmaster@groups.ext.hpe.com.
  • ✓ Counter serial #26
    The serial 20260434 is a plain counter.

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

22 records at the apex

Found

Read from
192.170.12.194:53
TypeValueTTL
SOAgva01hpeibdns0a.ext.hpecore.net. ddi-hostmaster.groups.ext.hpe.com. 20260434 3600 3600 2419200 9003600
NSns3.hpe.com.3600
NSns2.hpe.com.3600
NSns1.hpe.com.3600
NSns6.hpe.com.3600
NSns8.hpe.com.3600
NSns4.hpe.com.3600
NSns5.hpe.com.3600
NSns7.hpe.com.3600
A69.8.201.863600
MX10 mxb-002e3701.gslb.pphosted.com.3600
TXT"aka edns2"3600
TXT"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all"3600
TXT"_mnkyzubopdpky8kavs5guowrmcyzf3y"3600
TXT"_1s36cnpu2lj5mfmqtknbkskak36ytlz"3600
TXT"_w3l3xzg7cex11jl5opc037dkganwwby"3600
TXT"MS=ms40939734"3600
TXT"aka edns3"3600
TXT"Location: London"3600
TXT"Location: CF"3600
TXT"aka edns4"3600
TXT"8xK89E0ZGqpqu6S285Q0W3lmDwpImbOcJIQwyk20A5k"3600

Checks

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