up.com

Checked 22 October 2026, 11:15 UTC · via 8.8.8.8
!Passed with warnings
23 passed 3 warnings 0 failed 5 info

Registration

info

.com generic · Network Solutions, LLC · expires 2028-05-13

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Network Solutions, LLC
Registered
12 May 1994
Last changed
14 October 2026
Expires
13 May 2028
Status
client transfer prohibited
Registry nameservers
eth0.omhqp13d10.uprr.com, omsdp1131e.uprr.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 2028-05-13 #3
    The registration is valid until 2028-05-13 (568 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

eth0.omhqp13d10.uprr.com, omsdp1131e.uprr.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
eth0.omhqp13d10.uprr.com, omsdp1131e.uprr.com
NS in the zone
eth0.omhqp13d10.uprr.com, omsdp1131e.uprr.com
NameserverAddressesNetwork (AS)Glue
eth0.omhqp13d10.uprr.com45.54.254.90AS10405 UPRR-ASN-01 - Union Pacific Railroad Company, US45.54.254.90
omsdp1131e.uprr.com173.229.252.139AS10405 UPRR-ASN-01 - Union Pacific Railroad Company, US173.229.252.139

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: eth0.omhqp13d10.uprr.com, omsdp1131e.uprr.com.
    #6
  • ✓ 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 (AS10405 (UPRR-ASN-01 - Union Pacific Railroad Company, US): 2 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

warn

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
eth0.omhqp13d10.uprr.com 45.54.254.90NOERROR, 111 ms, authoritativenoyes / yesrefused9.14.12
omsdp1131e.uprr.com 173.229.252.139NOERROR, 117 ms, authoritativenoyes / yesrefused9.20.27

Checks

  • ✓ All respond #14
    All 2 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: eth0.omhqp13d10.uprr.com: "9.14.12"; omsdp1131e.uprr.com: "9.20.27". 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

pass

serial 2261014296 · primary omsdp1131e.uprr.com

Found

Primary (MNAME)
omsdp1131e.uprr.com
Contact (RNAME)
netengr.uprr.net
Serial
2261014296
Refresh / retry
3600 s / 900 s
Expire
604800 s
Negative TTL
5400 s

Serial per nameserver

NameserverSerial
eth0.omhqp13d10.uprr.com (45.54.254.90)2261014296
omsdp1131e.uprr.com (173.229.252.139)2261014296

Checks

  • ✓ Serial 2261014296 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 15m, expire 7d, negative TTL 90m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver omsdp1131e.uprr.com is one of the listed nameservers.
  • ✓ Contact netengr@uprr.net #25
    The SOA RNAME netengr.uprr.net means netengr@uprr.net.
  • ✓ Timestamp serial #26
    The serial 2261014296 is a Unix timestamp (2041-08-25 03:31 UTC).

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

15 records at the apex

Found

Read from
45.54.254.90:53
TypeValueTTL
SOAomsdp1131e.uprr.com. netengr.uprr.net. 2261014296 3600 900 604800 54007200
NSeth0.omhqp13d10.uprr.com.7200
NSomsdp1131e.uprr.com.7200
A69.58.254.2171200
A69.58.254.1531200
MX10 up-com.mail.protection.outlook.com.7200
TXT"v=spf1 ip4:198.47.234.241 ip4:173.229.254.166 ip4:173.229.253.227 ip4:72.37.125.107 ip4:173.229.253.230 ip4:198.47.235.132 " "ip4:198.47.234.228 ip4:173.229.226.27 ip4:173.229.227.171 ip4:52.32.219.230 ip4:35.160.111.225 include:spf.protection.outlook.com ~all"7200
TXT"apple-domain-verification=CgY976OL5YPCKcas"7200
TXT"snowflake-verification=ce04ab2f-019f-1000-800c-0000000007da"7200
TXT"_qlwwg2wry34ufhkhymayoy8wye09ftf"7200
TXT"atlassian-domain-verification=GNp/2IvSdTLZ7jag5ptwkIIo0lGQKO4XfvXTDbHCLmL/bP5qOwh1NdVrwydszgcN"7200
TXT"adobe-idp-site-verification=a784fb078c8e9b8a2ca01c0627d068824d26fc814d59da0d7cbbdf16078cfd6e"7200
TXT"jamf-site-verification=AHcIzofdkmyLqp_f3bibQA"7200
TXT"webexdomainverification.=63d51544-21b6-4d3f-b651-e6aa9d5058fe"7200
TXT"asv=6bba16026648fecd06442746b19d9295"7200

Checks

  • ✓ TTLs within range #32
    TTLs: A 20m, MX 2h, NS 2h. The NS TTL at the parent is 2d and in the zone 2h; 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