upmc.com

Checked 22 October 2026, 11:16 UTC · via 8.8.8.8
!Passed with warnings
24 passed 3 warnings 0 failed 4 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-09-17

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
17 September 1999
Last changed
13 September 2026
Expires
17 September 2027
Status
client transfer prohibited
Registry nameservers
ns3.upmc.com, ns4.upmc.com, ns5.upmc.com, ns6.upmc.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 2027-09-17 #3
    The registration is valid until 2027-09-17 (329 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

ns3.upmc.com, ns4.upmc.com, ns5.upmc.com, ns6.upmc.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns3.upmc.com, ns4.upmc.com, ns5.upmc.com, ns6.upmc.com
NS in the zone
ns3.upmc.com, ns4.upmc.com, ns5.upmc.com, ns6.upmc.com
NameserverAddressesNetwork (AS)Glue
ns3.upmc.com157.229.157.229AS122 UPMC-AS122 - UPMC, US157.229.157.229
ns4.upmc.com150.232.150.232AS122 UPMC-AS122 - UPMC, US150.232.150.232
ns5.upmc.com157.229.157.230AS122 UPMC-AS122 - UPMC, US157.229.157.230
ns6.upmc.com150.232.150.233AS122 UPMC-AS122 - UPMC, US150.232.150.233

Checks

  • ✓ 4 nameservers #6
    Delegated to ns3.upmc.com, ns4.upmc.com, ns5.upmc.com, ns6.upmc.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns3.upmc.com, ns4.upmc.com, ns5.upmc.com, ns6.upmc.com.
  • ✓ 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 (AS122 (UPMC-AS122 - UPMC, 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns3.upmc.com 157.229.157.229NOERROR, 112 ms, authoritativenoyes / yesrefused-
ns4.upmc.com 150.232.150.232NOERROR, 114 ms, authoritativenoyes / yesrefused-
ns5.upmc.com 157.229.157.230NOERROR, 113 ms, authoritativenoyes / yesrefused-
ns6.upmc.com 150.232.150.233NOERROR, 113 ms, authoritativenoyes / yesrefused-

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.
  • ✓ 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 621712896 · primary ns3.upmc.com

Found

Primary (MNAME)
ns3.upmc.com
Contact (RNAME)
dcipf.msx.upmc.edu
Serial
621712896
Refresh / retry
900 s / 3600 s
Expire
2592000 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns3.upmc.com (157.229.157.229)621712896
ns4.upmc.com (150.232.150.232)621712896
ns5.upmc.com (157.229.157.230)621712896
ns6.upmc.com (150.232.150.233)621712896

Checks

  • ✓ Serial 621712896 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 15m is outside 20m–1d; retry 1h should be shorter than refresh 15m. Current values: refresh 15m, retry 1h, expire 30d, negative TTL 5m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns3.upmc.com is one of the listed nameservers.
  • ✓ Contact dcipf@msx.upmc.edu #25
    The SOA RNAME dcipf.msx.upmc.edu means dcipf@msx.upmc.edu.
  • ✓ Counter serial #26
    The serial 621712896 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

18 records at the apex

Found

Read from
157.229.157.229:53
TypeValueTTL
SOAns3.upmc.com. dcipf.msx.upmc.edu. 621712896 900 3600 2592000 3007200
NSns6.upmc.com.86400
NSns4.upmc.com.86400
NSns3.upmc.com.86400
NSns5.upmc.com.86400
A151.195.136.79600
MX10 mxa-0002f001.gslb.pphosted.com.7200
MX20 mxb-0002f001.gslb.pphosted.com.7200
TXT"globalsign-domain-verification=16AEDABE336F984E02AF4CB3B7FF93EB"7200
TXT"google-site-verification=OmhcfmTFkwVsu0bKSpWINmxCGXcqcIe84hvExlCoSys"7200
TXT"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"7200
TXT"amazonses:wufMUUecvUIuj1ZqWjzCZIzDHAtniu7DT/F06YdZUgk="7200
TXT"_xdm9vfvca0fcuvftuklyuwx3340aejh"7200
TXT"2271901"7200
TXT"google-site-verification=tFQmDF_XH_5DPVgWcGi23QNgJegpGuaiuEVvuFzLLhc"7200
TXT"logmein-verification-code=00aa00aa-bb11-cc22-dd33-44ee44ee44ee"7200
TXT"domain-verification=f4e6658e-b539-4a6a-18ad-76bc6226a66f"7200
TXT"pardot689353=4b9d5931f46bd7dbe00e3c3e5c3f9aa5db329bc2ecc140d2a2e90588f15012c5"7200

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 2h, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; 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