Domain report: ups.com

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2036-04-08

Found

TLD: .com (generic)
ICANN policies apply: yes
Registrar: CSC Corporate Domains, Inc.
Registered: 7 April 1992
Last changed: 3 June 2026
Expires: 8 April 2036
Status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers: auth1.dns.cogentco.com, auth2.dns.cogentco.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, nsa.ups.com, nsb.ups.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 2036-04-08 #3

The registration is valid until 2036-04-08 (3455 days).
✓ Transfer locked #4

Registry status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
✓ Registry and delegation match #5

The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

auth1.dns.cogentco.com, auth2.dns.cogentco.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, nsa.ups.com, nsb.ups.com

Found

Parent zone: com
Delegation from: a.gtld-servers.net (192.5.6.30)
NS at the parent: auth1.dns.cogentco.com, auth2.dns.cogentco.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, nsa.ups.com, nsb.ups.com
NS in the zone: auth1.dns.cogentco.com, auth2.dns.cogentco.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, nsa.ups.com, nsb.ups.com

Nameserver	Addresses	Network (AS)	Glue
auth1.dns.cogentco.com	66.28.0.14 2001:550:1:a::d	AS174 COGENT-174 - Cogent Communications, LLC, US AS174 COGENT-174 - Cogent Communications, LLC, US	2001:550:1:a::d 66.28.0.14
auth2.dns.cogentco.com	66.28.0.30 2001:550:1:b::d	AS174 COGENT-174 - Cogent Communications, LLC, US AS174 COGENT-174 - Cogent Communications, LLC, US	66.28.0.30
cbru.br.ns.els-gms.att.net	68.94.156.132 2001:1890:1ff:9f0:68:94:156:132	AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US	-
cmtu.mt.ns.els-gms.att.net	99.99.99.132 2001:1890:1ff:9f1:99:99:99:132	AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US	-
nsa.ups.com	153.2.242.115	AS12217 UPS - UNITED PARCEL SERVICE, US	153.2.242.115
nsb.ups.com	153.2.244.155	AS12217 UPS - UNITED PARCEL SERVICE, US	153.2.244.155

Checks

✓ 6 nameservers #6

Delegated to auth1.dns.cogentco.com, auth2.dns.cogentco.com, cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, nsa.ups.com, nsb.ups.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: auth2.dns.cogentco.com (glue 66.28.0.30, zone 66.28.0.30, 2001:550:1:b::d). 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 5 IPv4 /24s and 2 IPv6 /48s.
✓ 3 autonomous systems #11

The nameservers are spread over: AS12217 (UPS - UNITED PARCEL SERVICE, US): 2 addresses; AS174 (COGENT-174 - Cogent Communications, LLC, US): 4 addresses; AS7018 (ATT-INTERNET4 - AT&T Enterprises, LLC, US): 4 addresses.
✓ Nameserver names under 2 TLDs #12

Nameserver names use the TLDs .com, .net.
i

Partly IPv6

These nameservers have no IPv6 address: nsa.ups.com, nsb.ups.com.

#13

Nameservers

fail

10 of 10 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
auth1.dns.cogentco.com 66.28.0.14	NOERROR, 8 ms, authoritative	no	yes / yes	refused	Cogent_DNS
auth1.dns.cogentco.com 2001:550:1:a::d	NOERROR, 8 ms, authoritative	no	yes / yes	refused	Cogent_DNS
auth2.dns.cogentco.com 66.28.0.30	NOERROR, 8 ms, authoritative	no	yes / yes	refused	Cogent_DNS
auth2.dns.cogentco.com 2001:550:1:b::d	NOERROR, 6 ms, authoritative	no	yes / yes	refused	Cogent_DNS
cbru.br.ns.els-gms.att.net 68.94.156.132	NOERROR, 136 ms, authoritative	no	yes / yes	refused	-
cbru.br.ns.els-gms.att.net 2001:1890:1ff:9f0:68:94:156:132	NOERROR, 113 ms, authoritative	no	no / yes	refused	-
cmtu.mt.ns.els-gms.att.net 99.99.99.132	NOERROR, 139 ms, authoritative	no	yes / yes	refused	-
cmtu.mt.ns.els-gms.att.net 2001:1890:1ff:9f1:99:99:99:132	NOERROR, 117 ms, authoritative	no	no / yes	refused	-
nsa.ups.com 153.2.242.115	NOERROR, 109 ms, authoritative	no	yes / yes	refused	-
nsb.ups.com 153.2.244.155	NOERROR, 117 ms, authoritative	no	yes / yes	refused	-

Checks

✓ All respond #14

All 10 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.
i

Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: auth1.dns.cogentco.com: "Cogent_DNS"; auth2.dns.cogentco.com: "Cogent_DNS".

#17
✓ Zone transfers refused #18

No nameserver allows a zone transfer to the public.
✗

No DNS over TCP

DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: cbru.br.ns.els-gms.att.net (2001:1890:1ff:9f0:68:94:156:132): read tcp [2a01:4f8:1c1c:eebf::1]:56358->[2001:1890:1ff:9f0:68:94:156:132]:53: read: connection reset by peer; cmtu.mt.ns.els-gms.att.net (2001:1890:1ff:9f1:99:99:99:132): read tcp [2a01:4f8:1c1c:eebf::1]:52754->[2001:1890:1ff:9f1:99:99:99:132]:53: read: connection reset by peer.

#19
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

SOA

pass

serial 2023534567 · primary nsa.ups.com

Found

Primary (MNAME): nsa.ups.com
Contact (RNAME): hostmaster.nowhere.null
Serial: 2023534567
Refresh / retry: 21600 s / 1800 s
Expire: 2419200 s
Negative TTL: 3600 s

Serial per nameserver

Nameserver	Serial
auth1.dns.cogentco.com (66.28.0.14)	2023534567
auth1.dns.cogentco.com (2001:550:1:a::d)	2023534567
auth2.dns.cogentco.com (66.28.0.30)	2023534567
auth2.dns.cogentco.com (2001:550:1:b::d)	2023534567
cbru.br.ns.els-gms.att.net (68.94.156.132)	2023534567
cbru.br.ns.els-gms.att.net (2001:1890:1ff:9f0:68:94:156:132)	2023534567
cmtu.mt.ns.els-gms.att.net (99.99.99.132)	2023534567
cmtu.mt.ns.els-gms.att.net (2001:1890:1ff:9f1:99:99:99:132)	2023534567
nsa.ups.com (153.2.242.115)	2023534567
nsb.ups.com (153.2.244.155)	2023534567

Checks

✓ Serial 2023534567 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 6h, retry 30m, expire 28d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver nsa.ups.com is one of the listed nameservers.
✓ Contact hostmaster@nowhere.null #25

The SOA RNAME hostmaster.nowhere.null means hostmaster@nowhere.null.
✓ Timestamp serial #26

The serial 2023534567 is a Unix timestamp (2034-02-14 12:56 UTC).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC3
NSEC3: 10 iterations, 7-byte salt
Signatures valid until: 27 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
47249	RSASHA256 (8)	SHA256 E40DB9F3D3D2098E…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
47249	KSK (257)	RSASHA256 (8)
990	ZSK (256)	RSASHA256 (8)
63691	KSK (257)	RSASHA256 (8)
18085	ZSK (256)	RSASHA256 (8)
42903	ZSK (256)	RSASHA256 (8)

Checks

✓ Signed and validated #27

The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
✓ DS matches a key #28

The DS record at the parent matches a key in the zone: key tag 47249 (SHA256).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
!

Signatures expire soon

The earliest signature expires at 2026-10-27 21:12 UTC (in 130h0m0s). Check that automatic re-signing works.

#30
!

NSEC3 with extra iterations or salt

NSEC3 uses 10 iterations and a 7-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.

#31

Records

pass

47 records at the apex

Found

Read from: 66.28.0.14:53

Type	Value	TTL
SOA	nsa.ups.com. hostmaster.nowhere.null. 2023534567 21600 1800 2419200 3600	3600
NS	cmtu.mt.ns.els-gms.att.net.	3600
NS	auth1.dns.cogentco.com.	3600
NS	nsa.ups.com.	3600
NS	cbru.br.ns.els-gms.att.net.	3600
NS	auth2.dns.cogentco.com.	3600
NS	nsb.ups.com.	3600
A	153.2.228.130	3600
A	153.2.224.130	3600
MX	10 mxa-002b8001.gslb.pphosted.com.	3600
MX	10 mxb-002b8001.gslb.pphosted.com.	3600
TXT	"ms-domain-verification=80c37544-9962-4dd8-8bf1-06ea029a5e1b"	3600
TXT	"Dynatrace-site-verification=6c7493f5-c875-49a2-b56a-7d444ceabfd5__3mv8veqcrv2adtrqj9cjqesrbi"	3600
TXT	"pendo-domain-verification=yZLjrrOQ9UdildMdEUAwGAjIWeE"	3600
TXT	"docusign=6ba49f2d-39c3-4314-9d71-effdc9bd2256"	3600
TXT	"Dynatrace-site-verification=6804e173-b6f7-434a-9911-d4785de89104__jkn9ikqla8c2cmf8a2741f8mbm"	3600
TXT	"adobe-idp-site-verification=eef08e93-4fdf-4906-a2e7-ac21e5d6e7be"	3600
TXT	"jamf-site-verification=hw8-VnJi2jXZlB8d_Ycx3A"	3600
TXT	"onetrust-domain-verification=a72ec7481ed44f258ff6a26c7d39ec29"	3600
TXT	"docusign=22f44e31-1d36-4570-85e3-f80bebf73583"	3600
TXT	"wiz-domain-verification=be49a81b664f5e86a985ef6fc12c2f48f155f9ff2b24602666069347859a6e1e"	3600
TXT	"cisco-ci-domain-verification=4cee9d0ed8d9970a23624898d87e2a01b9e48b154d568878bb0f7a5824192a04"	3600
TXT	"canva-site-verification=0t2T76468Fz8XdjfppeuCA"	3600
TXT	"omnissa-connect-verification-fe419b26-eeb6-47f5-ba4b-1aff2e77c373"	3600
TXT	"globalsign-domain-verification=e7f81fe8aa411bfe441765ebffb8b397"	3600
TXT	"_p81wgziq3en9j1y08bgl22enp2zxtja"	3600
TXT	"_rydlwrwlr54u9u772rfeonu2s6ptkou"	3600
TXT	"docusign=d4cfe06f-650e-4c4c-a946-acaaacb806ab"	3600
TXT	"globalsign-domain-verification=o_rYP25V4fPfqOIJK_jAWgqTa6eAzMQpU0BiIQ-ocz"	3600
TXT	"globalsign-domain-verification=59f05bd80057c98bf0a778055999d8e2"	3600
TXT	"google-site-verification=9463fifxtUPXABeIJw2wUUmoIgqt9HTbadpS54HHuu4"	3600
TXT	"docusign=c4f64023-709f-42ad-b67a-ef340b6ee64e"	3600
TXT	"cursor-domain-verification-5ste0z=9ydNYa0ZYgeK18m6isp3LRfQn"	3600
TXT	"google-site-verification=Ql2LZ5Cjd3SbzB_fnwvH8Aa7ycNDWIMrnDk_fGxqElo"	3600
TXT	"smartsheet-site-validation=3y1yM9Y8zl3Zpj3gXBHCwLmiOaRpheST"	3600
TXT	"h1-domain-verification=UGPvQeXGCssoY6xN93tCEsSTLLFQAyLnasVUvrr5nnUMpHi6"	3600
TXT	"unity-sso-verification=bbc1ce19-da05-4eb6-b261-673b0a7d17b3"	3600
TXT	"wPLi4qnnaEKeqRySYuFzWZw8p1H87l3LBJwHQJo+/qiD93TE/IsBr9rO/UI89488KEvWgwXs5j/8vjvXvP2NBQ=="	3600
TXT	"google-site-verification=wjCOQ4ZX-dXduhHgn7A_BORRu-m4uE7UaF-8WrLTDwg"	3600
TXT	"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf-002b8001.pphosted.com include:spf-002b8002.pphosted.com include:spf-002b8003.pphosted.com include:spf-002b8004.pphosted.com -all"	3600
TXT	"postman-domain-verification=b3daf24645d4a3a9a800b43265ead7ff38254b1facc357e3e3399321fcc10737cbfff3206ff8299c770e3ee795953355966498445792e26413f98d8d938a1c49"	3600
TXT	"onetrust-domain-verification=ca76068e041d442dabdc2eb32bda9440"	3600
TXT	"apple-domain-verification=edIJCYjoGulFOG0z"	3600
CAA	128 issue "ica.cz"	3600
CAA	128 issue "globalsign.com"	3600
CAA	128 issue "digicert.com"	3600
CAA	128 issue "sectigo.com"	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.
✓ CAA restricts issuance #35

Certificates may be issued by: ica.cz, globalsign.com, digicert.com, sectigo.com.