shell.com

Checked 22 October 2026, 10:41 UTC · via 8.8.8.8
!Passed with warnings
31 passed 2 warnings 0 failed 2 info

Registration

info

.com generic · Nom-iq Ltd. dba COM LAUDE · expires 2027-07-14

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Nom-iq Ltd. dba COM LAUDE
Registered
15 July 1989
Last changed
14 June 2026
Expires
14 July 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
dns1.shell.com, dns2.shell.com, dns3.shell.com, dns4.shell.eu
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 2027-07-14 #3
    The registration is valid until 2027-07-14 (264 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update 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

dns1.shell.com, dns2.shell.com, dns3.shell.com, dns4.shell.eu

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns1.shell.com, dns2.shell.com, dns3.shell.com, dns4.shell.eu
NS in the zone
dns1.shell.com, dns2.shell.com, dns3.shell.com, dns4.shell.eu
NameserverAddressesNetwork (AS)Glue
dns1.shell.com134.146.80.20AS3917 SHELL-3917 - Shell Information Technology International B.V., EU134.146.80.20
dns2.shell.com144.199.196.20AS3918 SHELL-3918 - Shell Information Technology International B.V., EU144.199.196.20
dns3.shell.com134.163.128.20AS11355 SHELL - Shell Information Technology International, Inc., US134.163.128.20
dns4.shell.eu34.250.153.89AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to dns1.shell.com, dns2.shell.com, dns3.shell.com, dns4.shell.eu.
  • ✓ 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: dns1.shell.com, dns2.shell.com, dns3.shell.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 4 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 4 autonomous systems #11
    The nameservers are spread over: AS11355 (SHELL - Shell Information Technology International, Inc., US): 1 address; AS16509 (AMAZON-02 - Amazon.com, Inc., US): 1 address; AS3917 (SHELL-3917 - Shell Information Technology International B.V., EU): 1 address; AS3918 (SHELL-3918 - Shell Information Technology International B.V., EU): 1 address.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .eu.
  • !
    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
dns1.shell.com 134.146.80.20NOERROR, 14 ms, authoritativenoyes / yesrefused-
dns2.shell.com 144.199.196.20NOERROR, 247 ms, authoritativenoyes / yesrefused-
dns3.shell.com 134.163.128.20NOERROR, 133 ms, authoritativenoyes / yesrefused-
dns4.shell.eu 34.250.153.89NOERROR, 24 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

pass

serial 3132078 · primary dns1.shell.com

Found

Primary (MNAME)
dns1.shell.com
Contact (RNAME)
dns.shell.com
Serial
3132078
Refresh / retry
10800 s / 1080 s
Expire
2419200 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
dns1.shell.com (134.146.80.20)3132078
dns2.shell.com (144.199.196.20)3132078
dns3.shell.com (134.163.128.20)3132078
dns4.shell.eu (34.250.153.89)3132078

Checks

  • ✓ Serial 3132078 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 18m, expire 28d, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.shell.com is one of the listed nameservers.
  • ✓ Contact dns@shell.com #25
    The SOA RNAME dns.shell.com means dns@shell.com.
  • ✓ Counter serial #26
    The serial 3132078 is a plain counter.

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
10 iterations, 3-byte salt
Signatures valid until
26 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
21682RSASHA256 (8)SHA256 0577BE699302C222…NO
59155RSASHA256 (8)SHA256 FA7F62F351B1CFBF…yes

DNSKEY in the zone

Key tagRoleAlgorithm
1108ZSK (256)RSASHA256 (8)
11449ZSK (256)RSASHA256 (8)
25716ZSK (256)RSASHA256 (8)
43612KSK (257)RSASHA256 (8)
59155KSK (257)RSASHA256 (8)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • i
    Unused DS records
    These DS records match no key in the zone: key tag 21682 (SHA256). That is normal during a key rollover; otherwise remove them.
    #28
  • ✓ Modern algorithms #29
    Key algorithms: RSASHA256 (8).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 97h0m0s and created on demand; the current one was made at 2026-10-22 00:13 UTC and expires at 2026-10-26 01:11 UTC.
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 10 iterations and a 3-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

136 records at the apex

Found

Read from
134.146.80.20:53
TypeValueTTL
SOAdns1.shell.com. dns.shell.com. 3132078 10800 1080 2419200 60086400
NSdns2.shell.com.86400
NSdns4.shell.eu.86400
NSdns3.shell.com.86400
NSdns1.shell.com.86400
A4.210.156.184300
MX10 shell-com.q-v1.mx.microsoft.300
TXT"5rd5scsii7robjjqc7kc18nmjs"300
TXT"vfccitpee3sp44qvsgscnd1lpq"300
TXT"n8i8ceak50h50tllaatr3edhkf"300
TXT"83784732hy"300
TXT"pardot877962=43d42d10d8972bd081c2e637e06a677cbb3a07406ed9297e6b4c23f3a07a44e4"300
TXT"pardot905062=487588ed2945ae95200b9905ecdda8e918ff69e755d759e7e6b5ae533363edc1"300
TXT"nw8j50tn89gmp884nly0s70tlqbcf8cx"300
TXT"k6tpym151cnp6p3p3b6bh9f5659y990g"300
TXT"ltllqqbtqhhw684mg24g3dwwnq3jw37w"300
TXT"q1mksk7p1p6byn9g81hwy0y014126d9z"300
TXT"9kycgg9dv494rjqt1nnd06cqq2x8b7ft"300
TXT"jfz9hgryxw3rs6d1xq4ctlvqdxkx0rnj"300
TXT"f24l12r2mrp3xtc42pjgh0zz2sd51tyt"300
TXT"zsxkjt0l3138n4yz86g77689kw28g261"300
TXT"67479A2E9D885B37AF8FB5868B275E3D4DB9DF445459E4F7C03373132488AF84"300
TXT"m5pH6XJm/UMzxV/TutADz4Kl0dboUJHh7180cCyD/p+5RBHj33/LSdiPFjnEXWGPQez+uElLZVAfeeP1vorhog=="300
TXT"B0CF2F5A020200D38923562A57ACC4492AB96072A79F72B463D68009ED7B789D"300
TXT"pardot905062=71d2bb6db75d59f8fea2bdccf42eea2b1426982c29442de37411d334fb48dffd"300
TXT"d97c7xwpcymczhpklm1dpr1xr6fn3yzb"300
TXT"7ftggy6w4c5bp3w6ljt8rv9h5dsvbd7r"300
TXT"lpjr2mkhmby7w5dydndfvxc0lk98llb0"300
TXT"54z1dw6s66pmp64pmq1tbtz13f2r4l3l"300
TXT"8x9rgzz3pvy6nz9g9470084k519f27vk"300
TXT"3x493h89c0dxsgjwwsr7h9msc7p2g5k3"300
TXT"v=spf1 exists:_i.%{i}._h.%{h}._o.%{o}._spf.shell.com include:_spf.shell.com include:_spf1.shell.com include:spf.protection.outlook.com include:_spf.salesforce.com -all"300
TXT"pardot995622=e4aba6e693244a7e777d31ca2819641fd25d0de16992d173b52ec081d3d9da52"300
TXT"smartsheet-site-validation=yjjK074dTIEOnWIeLdErssobXkT14tjg"300
TXT"k5lebgsivjqnpekbv0jq81r910"300
TXT"odfm9m1iu24t0poric4590mu79"300
TXT"google-site-verification=ePLLCG-tbcqjAQ9frNo-D8FcR6e4AjSNDKg5gFYFJi0"300
TXT"duo_sso_verification=PTDBTnybb8VK0vk02mkuBA75Yqyu0KOZQdxiJL6h55TcM2QmTETmUz13zXyYNqup"300
TXT"atlassian-sending-domain-verification=7b25cdbd-c3f5-4d35-acb4-0fff16852411"300
TXT"atlassian-domain-verification=SfYQMaMissomX90WfR7MoGF8l6LQeuVp45SNlq07qdo9gatpSy/F69CAfUMOaztE"300
TXT"fastly-domain-delegation-594378-0ZM4amkwMltEWmCIidYB-04-2023"300
TXT"ba371u8b1vl9131qrk0f1frm3h"300
TXT"mongodb-site-verification=QT1Vu4DO1Q6VWQPepOCIJXiHj26PZoIu"300
TXT"R0IGT1MG1NUTSAYSH4CRX58HXZ9LXWIOV068SSV8E"300
TXT"mongodb-site-verification=p5sfueWDgHybEayDekRFIQaqQYpRucfZ"300
TXT"twilio-domain-verification=0178223b1df951657aa3e1e2def8991a"300
TXT"formstack-domain-verification=7182f5bd68e108664a843725ce0b1bbe"300
TXT"bw=ByUMJFZWrkr5cE3IR5PdTjBbqxK91zzHO+N4SQLbcrRB"300
TXT"mixpanel-domain-verify=61dfbc63-3e0f-4b53-ad62-26977e529056"300
TXT"hcp-domain-verification=c1780cf85dee1d22876a0131e4642ee4998ba9e794102457bb7565fb27c46a94"300
TXT"hcp-domain-verification=8b8626010d390830e0af71dc9445743231a89e755f783804897c7df5950de525"300
TXT"mindmanager-verification=46eaa26621e4955c1675b55d446c6d03325f458b59a465f898d42924010e7286"300
TXT"9v7lgkl5vn6qu138hnacm87m7d"300
TXT"muvfg8qupf7tveph8up5k72o7r"300
TXT"duo_sso_verification=WojFyyjSjqR6aEVhlNeJGxsEbub6J7DLeiA8y88ZatRECfEEkqjYaFmWwg1tuiHY"300
TXT"j1e32iga06qkpukb87v0g0eqp0"300
TXT"jef44p27d386qk9drqed3tkr0g"300
TXT"becmf9keiapknkqktt5kcdsk4u"300
TXT"onetrust-domain-verification=1ac702ebcb2d40dca863857f087cf057"300
TXT"5cl4k0oed72ehkvoa10v4ipn6o"300
TXT"openai-domain-verification=dv-yjC9VWvOIxJjQxOMtFY8vZpx"300
TXT"h28ra7n9j438lmumemkatjbdel"300
TXT"_klgb1b8sryh5foz9v2y25abn2ufi6am"300
TXT"rpe0qoigpc4sj3qmvjq35fosbj"300
TXT"kladatf8hsar5nhtrutg6jf86"300
TXT"7je83da3qj3bpnldt2ca22lq2b"300
TXT"tbcl5jgt1h3u8ap8f3bg9miivr"300
TXT"obfkioj6fnfj047cl71cj7u3cg"300
TXT"r6tntvvor04ptd8ir8cbhljc5h"300
TXT"6pvhf1tdsrh005si06puiqbr0i"300
TXT"gus7b7acbcj5d1c4edtjcntpbg"300
TXT"2ntnl8vh9en2hncob7rl5uflh3"300
TXT"al5io4qpg7hacjoot3obv8uspl"300
TXT"lh3rvq1apj99p27nmf46oarjt8"300
TXT"figma-domain-verification=186c2ce377b23e5d486d11e2fba9bc4fff13f477d57796f069b7dce4aa35b349-1780561731"300
TXT"hr0hkqtrggenijuok94b6ah8er"300
TXT"2cvdelq28dfffl3of8ilrk5rjm"300
TXT"k8ju4fp2b626vf7t936i00f06h"300
TXT"ccvr86rnkbdsohci43etof4v4t"300
TXT"igg8jcvasuic3hu4g1sukbopnn"300
TXT"p9aflk6bf1u5hobmpvg2la2ogs"300
TXT"cihsu14j9h5f6kg3qvrcipdbla"300
TXT"e5s5q5n3fdl5r70japmuioagv6"300
TXT"fiuq9uin7llbpc88cst6uva6oe"300
TXT"c4r67hren2akeccdt7vvs2s7tn"300
TXT"fjbe1q74kq9jvvr1l5hr71tjhb"300
TXT"airtable-verification=ca11314ec3c03ff04943429a6c0da5d5"300
TXT"pcrg48b94rbagcolqvmerh40qi"300
TXT"loob7nflgteavfror2tob1bod9"300
TXT"b9uicqrea9u28o26qh8v1v9qb3"300
TXT"cggba1bqf07eu8eob87llaeiu3"300
TXT"mtfaktc612htslmu6c821tu5vk"300
TXT"iq5r1r8f07do21qhgp9utbh84s"300
TXT"v1v27r6aqau2jdpe1ul375hd78"300
TXT"n9s5ge9lm2n4v8rv6bficvtu8c"300
TXT"kfgi51bfbdgo1aaich7v9t5jdi"300
TXT"rvigiuhm9l6pluuh42vf1ma4d8"300
TXT"jotl51gr909igud0kjhroca5g6"300
TXT"7luna82ve8ulssp32rb0q33rba"300
TXT"t37blc7fas2n23j0vgeml2g7tc"300
TXT"5ttmrgpth1j7c8b1vl37vvhpg6"300
TXT"17u62s0sr9inaenrblo7buj184"300
TXT"pp5tf7mrr52squ0n7ikrgbsjrk"300
TXT"_xyesq5lmiyll8oga980zaxc9oavbupb"300
TXT"_bd2uedspa7478b28a2odh7v0ddvox64"300
TXT"c6p03slqs54833crf42kvhnmjj"300
TXT"6n2kjbcpjd3srar96ros0r2abt"300
TXT"84veg32vpg20t7artph8seo4al"300
TXT"7m6133mlokjiusifgv3ajgmno9"300
TXT"m9hqp8l6cado1sicei24g5f8in"300
TXT"svu0gapviahdc7hprk3066ku8n"300
TXT"5uubnh5vmp7jt6povqojjvfk6f"300
TXT"rccpmbpf42gf6epvj434sjuk0g"300
TXT"jest3vipj2uvihtbk8pvin8kdq"300
TXT"of2p67t8n599pbtu36qsea656h"300
TXT"gbou8q7lik2gi0fmpg4u7udcp6"300
TXT"q6hr2r2efh2cr9mfaaemq9noaq"300
TXT"dtivdosoe9t8n9tofn21sa5hrg"300
TXT"kc54eneh9jq0jiu56vmec0b0qs"300
TXT"akctnq7v36ov8teton2n7kl6kb"300
TXT"adobe-idp-site-verification=2dcd60bb-a70f-4f4c-9832-e36e4f08745e"300
TXT"google-site-verification=2RWUzwfEqaFFEu-YXOetJGyDYW_jM1QzfbK63hd_Qec"300
TXT"x7idUCqz9nWCEY0CcyH2/URUlRj3Hzo9Vfm8JmQdziLc1EEjjy+rRjBGMqI0Nn47Ru8/sDAOvHiuOZQ96IbeYQ=="300
TXT"pardot270112=15e5e42b1e301512adf3e51a8a7605206daec3bc1aa68afa18f90b2c8634424d"300
TXT"docusign=ebc4433c-7318-4b65-b3cf-c4d01acf5b55"300
TXT"docusign=47717a16-0808-482b-b670-362c050ee218"300
CAA0 issue "entrust.net"3600
CAA0 issue "symantec.com"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "digicert.com"3600
CAA0 issue "www.digicert.com"3600
CAA0 issuemail "digicert.com"3600
CAA0 issue "amazon.com"3600
CAA0 iodef "mailto:ipladmin@shell.com"3600
CAA0 issue "godaddy.com"3600
CAA0 issue "globalsign.com"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: entrust.net, symantec.com, letsencrypt.org, digicert.com, www.digicert.com, amazon.com, godaddy.com, globalsign.com.