uber.com

Checked 22 October 2026, 11:14 UTC · via 8.8.8.8
!Passed with warnings
24 passed 4 warnings 0 failed 3 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2028-07-13

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
14 July 1995
Last changed
15 December 2021
Expires
13 July 2028
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net, edns126.ultradns.biz, edns126.ultradns.com, edns126.ultradns.net, edns126.ultradns.org
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 2028-07-13 #3
    The registration is valid until 2028-07-13 (629 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

dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net, edns126.ultradns.biz, edns126.ultradns.com, edns126.ultradns.net, edns126.ultradns.org

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net, edns126.ultradns.biz, edns126.ultradns.com, edns126.ultradns.net, edns126.ultradns.org
NS in the zone
dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net
NameserverAddressesNetwork (AS)Glue
dns1.p04.nsone.net198.51.44.4 2620:4d:4000:6259:7:4:0:1AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns2.p04.nsone.net198.51.45.4 2a00:edc0:6259:7:4::2AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns3.p04.nsone.net198.51.44.68 2620:4d:4000:6259:7:4:0:3AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns4.p04.nsone.net198.51.45.68 2a00:edc0:6259:7:4::4AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
edns126.ultradns.biz (parent only)204.74.67.126 2610:a1:1015::27eAS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
edns126.ultradns.com (parent only)204.74.66.126 2001:502:f3ff::27eAS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US2001:502:f3ff::27e 204.74.66.126
edns126.ultradns.net (parent only)204.74.110.126 2610:a1:1014::27eAS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
edns126.ultradns.org (parent only)204.74.111.126 2001:502:4612::27eAS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • ✓ 8 nameservers #6
    Delegated to dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net, edns126.ultradns.biz, edns126.ultradns.com, edns126.ultradns.net, edns126.ultradns.org.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: edns126.ultradns.biz, edns126.ultradns.com, edns126.ultradns.net, edns126.ultradns.org. dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net report NS dns1.p04.nsone.net dns2.p04.nsone.net dns3.p04.nsone.net dns4.p04.nsone.net. edns126.ultradns.biz, edns126.ultradns.com, edns126.ultradns.net, edns126.ultradns.org report NS edns126.ultradns.biz edns126.ultradns.com edns126.ultradns.net edns126.ultradns.org.
    #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 6 IPv4 /24s and 6 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12008 (VERCARA - Vercara, LLC, US): 8 addresses; AS62597 (NSONE - NSONE Inc, US): 8 addresses.
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .biz, .com, .net, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

16 of 16 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.p04.nsone.net 198.51.44.4NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns1.p04.nsone.net 2620:4d:4000:6259:7:4:0:1NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns2.p04.nsone.net 198.51.45.4NOERROR, 5 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns2.p04.nsone.net 2a00:edc0:6259:7:4::2NOERROR, 5 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns3.p04.nsone.net 198.51.44.68NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns3.p04.nsone.net 2620:4d:4000:6259:7:4:0:3NOERROR, 6 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns4.p04.nsone.net 198.51.45.68NOERROR, 5 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns4.p04.nsone.net 2a00:edc0:6259:7:4::4NOERROR, 5 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
edns126.ultradns.biz 204.74.67.126NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns126.ultradns.biz 2610:a1:1015::27eNOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns126.ultradns.com 204.74.66.126NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns126.ultradns.com 2001:502:f3ff::27eNOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns126.ultradns.net 204.74.110.126NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns126.ultradns.net 2610:a1:1014::27eNOERROR, 5 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns126.ultradns.org 204.74.111.126NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns126.ultradns.org 2001:502:4612::27eNOERROR, 32 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

Checks

  • ✓ All respond #14
    All 16 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: dns1.p04.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; dns2.p04.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; dns3.p04.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; dns4.p04.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; edns126.ultradns.biz: "UltraDNS Nameserver"; edns126.ultradns.com: "UltraDNS Nameserver"; edns126.ultradns.net: "UltraDNS Nameserver"; edns126.ultradns.org: "UltraDNS Nameserver".
    #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 1659494753 · primary dns1.p04.nsone.net

Found

Primary (MNAME)
dns1.p04.nsone.net
Contact (RNAME)
hostmaster.nsone.net
Serial
1659494753
Refresh / retry
43200 s / 7200 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns1.p04.nsone.net (198.51.44.4)1659494753
dns1.p04.nsone.net (2620:4d:4000:6259:7:4:0:1)1659494753
dns2.p04.nsone.net (198.51.45.4)1659494753
dns2.p04.nsone.net (2a00:edc0:6259:7:4::2)1659494753
dns3.p04.nsone.net (198.51.44.68)1659494753
dns3.p04.nsone.net (2620:4d:4000:6259:7:4:0:3)1659494753
dns4.p04.nsone.net (198.51.45.68)1659494753
dns4.p04.nsone.net (2a00:edc0:6259:7:4::4)1659494753
edns126.ultradns.biz (204.74.67.126)2019116568
edns126.ultradns.biz (2610:a1:1015::27e)2019116568
edns126.ultradns.com (204.74.66.126)2019116568
edns126.ultradns.com (2001:502:f3ff::27e)2019116568
edns126.ultradns.net (204.74.110.126)2019116568
edns126.ultradns.net (2610:a1:1014::27e)2019116568
edns126.ultradns.org (204.74.111.126)2019116568
edns126.ultradns.org (2001:502:4612::27e)2019116568

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 1659494753 on dns1.p04.nsone.net (198.51.44.4), dns1.p04.nsone.net (2620:4d:4000:6259:7:4:0:1), dns2.p04.nsone.net (198.51.45.4), dns2.p04.nsone.net (2a00:edc0:6259:7:4::2), dns3.p04.nsone.net (198.51.44.68), dns3.p04.nsone.net (2620:4d:4000:6259:7:4:0:3), dns4.p04.nsone.net (198.51.45.68), dns4.p04.nsone.net (2a00:edc0:6259:7:4::4); 2019116568 on edns126.ultradns.biz (204.74.67.126), edns126.ultradns.biz (2610:a1:1015::27e), edns126.ultradns.com (204.74.66.126), edns126.ultradns.com (2001:502:f3ff::27e), edns126.ultradns.net (204.74.110.126), edns126.ultradns.net (2610:a1:1014::27e), edns126.ultradns.org (204.74.111.126), edns126.ultradns.org (2001:502:4612::27e). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 2h, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.p04.nsone.net is one of the listed nameservers.
  • ✓ Contact hostmaster@nsone.net #25
    The SOA RNAME hostmaster.nsone.net means hostmaster@nsone.net.
  • ✓ Timestamp serial #26
    The serial 1659494753 is a Unix timestamp (2022-08-03 02:45 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

warn

54 records at the apex

Found

Read from
198.51.44.4:53
TypeValueTTL
SOAdns1.p04.nsone.net. hostmaster.nsone.net. 1659494753 43200 7200 1209600 36003600
NSdns1.p04.nsone.net.3600
NSdns2.p04.nsone.net.3600
NSdns3.p04.nsone.net.3600
NSdns4.p04.nsone.net.3600
A104.36.194.542
MX2 aspmx.l.google.com.100
MX5 alt1.aspmx.l.google.com.100
MX5 alt2.aspmx.l.google.com.100
MX10 alt3.aspmx.l.google.com.100
MX10 alt4.aspmx.l.google.com.100
TXT"AD5-G1R-7NJ"300
TXT"autodesk-domain-verification=wa1khlrPnOY-93pE5_nH"300
TXT"MS=607A6B094E5395250B2F88D76D42FFB6DC2C18A4"300
TXT"apple-domain-verification=NGLGgklojeSRTo9T"300
TXT"docker-verification=e121526a-c4bd-4829-8f6b-c4a3c93f0029"300
TXT"docusign=635f0402-4f58-42de-8e07-e1da6d8a971a"300
TXT"docusign=ce93a9f0-d430-4abb-aee8-ec66524c1f12"300
TXT"duo_sso_verification=efpKKW3WtEX7Ln6CBDAQyyNA5mwOU0KxFopDN2LtcawWUcGa6BByYIq5LG69lDrq"300
TXT"workplace-domain-verification=HhUs1CkDiWsL4Nlmkdb6IOVjrebKb1"300
TXT"facebook-domain-verification=fgnbsxqefhg2pzugzl4vcw82ylgagg"300
TXT"google-site-verification=9kwu-dlf_JSf0XtaHK2xK-Cowpra8TnHbfTRCa7NBk0"300
TXT"google-site-verification=yHvJ7x6qUkjrzRfaPzSO5Iu42eP70uSS0Q88xPFBbSU"300
TXT"google-site-verification=bywbMPdGdGaSev-nAuHwbdYjZziw9oPeGkOgBD5UyK0"300
TXT"v=spf1 include:uber.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:mailgun.org ~all"300
TXT"mixpanel-domain-verify=a35ee3f7-3848-4a0b-822e-d429b507c0c6"300
TXT"notion-domain-verification=ReKaEX54F5cGF2V3IKgyilPZF3TjQ34Iua63ng0LHDC"300
TXT"paloaltonetworks-site-verification=f567a8ba5a35da704fb1e540c1e50bbaa33bc2ea6b87193c22e1c9ae29348b2a"300
TXT"paloaltonetworks-site-verification=3327f3297af9c72f67c1c913632810f16877ddb0b9f24330f5a6ff76e915035d"300
TXT"stripe-verification=79f7b9921824c7fd1cd4ffc20fc10f662a5322317c8290f124b4e18d9ebd19e0"300
TXT"uber-site-verification=56157b0f-0f5f-4bdc-8a64-9c313ac173a5"300
TXT"ca3-ffffa27c6ab6493ba5e2ffd4f8961467"300
TXT"SFMC-4eGhjXSll4RESL8vyX0CBVbTfffzejZShsyAXBrT"300
TXT"crz6wwryflvvfk4kvk5lqfk78p02dc7m"300
TXT"_26a8qlr3df4hbl6zve94e918z0g5wud"300
TXT"openai-domain-verification=dv-wtb3VIyo0DtnGsiQN4DnZ4c7"300
TXT"f621e431-a485-4094-8587-2f76f441ccab"300
TXT"postman-domain-verification=4c640467e16a94ba218b31f435eb42e0749d16ab4168939f9ad5eb4ec3abb91cd63ca90ef5ccd3e4a8f4049444c3a267225ffde0ea6a9c8d84bb6e904034a1cc"300
TXT"atlassian-domain-verification=MMotF76tU47LiNcsEf06+lzKmWly4PgbYpYZqHy3a9YdTdY4S43ay72YkkxTmzff"300
TXT"Dynatrace-site-verification=95915cac-be11-4e1a-81b7-9580122d59d1__vrv8sf7b41uebre15lgg3c5tko"300
TXT"atlassian-domain-verification=M5S2mTVz1nn58QsIgP0q4BLRplQvKva5IHHG5usoAYecrD00FTI5zR2tzAmNnI9L"300
TXT"atlassian-sending-domain-verification=0302bdf3-f835-4464-979d-7beeda0dbe97"300
TXT"beautifulai-site-verification=ed0fad99-1b20-4963-ab5b-538f0f915117"300
TXT"hpe-greenlake-domain-verification=6553304837784b7232736d71514737737353622d6854354e343534554c71754f"300
TXT"lovable_verification=workspace_01jz0y1v0ff9cv8hsxkbvawqhx"300
TXT"c9s6q2+D+iTzxyax7z2ol/gbj0Rqq8Loojleaq22ZDM="300
TXT"dtm-domain-verification=EtPupN9aHsJIAtWeUzmu_aAa6o5BQsvO73iDfQIKkx4"300
TXT"tiktok-developers-site-verification=cCZKENHfoFc48Ks8x4K7IMa9NCyD1ggk"300
TXT"omnissa-connect-verification-da151bda-e79c-445f-9099-1fead7f31add"300
TXT"google-site-verification=p21addAHCLTiBqVhN6P3leSJNO2ob8edJtQbICdXCj8"300
TXT"apple-domain-verification=Da2R4Md5eAUVUg038WJnE-_ifFtCwYYc_Dlmx3EaPsU"300
TXT"duo_sso_verification=EArnP8qJQk9QUv3i30tGmhVOfsuivQxEgBlNLIF8EaD3ZimeyV2Iq5rBJQHWcaUMl"300
TXT"mandrill_verify.5Qnmy5yihDZ4mJwXJ0VP7w"300
TXT"mandrill_verify.UYz1FLL51N9Ky3RCgCUZGQ"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (42s), MX (1m40s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1h; 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