dot.bi

duke.edu

Protected Duke University Microsoft 365
“duke” in other TLDs Compare
DNS, hosting, email and name analysis are live. Registration data, the home-page probe, the archive lookup and the other-TLD check are being fetched in the background; this page refreshes itself in a few seconds.

Registration

Source: RDAP Not available

Fetching the registry record…

DNS

Source: live resolutionResolved 2026-10-13 22:41 UTC
TypeValue
NSdns-auth-01.oit.duke.edu · dns-auth-02.oit.duke.edu · dns-nc1-01.oit.duke.edu
A152.3.70.87
A152.3.72.243
MX10 duke-edu.mail.protection.outlook.com
TXTe2ma-verification=chxfb
TXTVqIKTw/sDnE4e+9lXPalJqYaTtomECjG0+6XKvd2Nhfkaw8aAfgvcZjlAshHEjspbTHBtw4hhkk5X1ITTvdWxw==
TXTe2ma-verification=d3hfb
TXT1password-site-verification=Y3VALDXXNFEVBGZLI56XBT6MKY
TXTanthropic-domain-verification-z8t79x=2ToUeCCwAOnrDzSEM9VxiJHeX
TXTe2ma-verification=wc0fb
TXTatlassian-domain-verification=JNWA1j8qak7X8iJmucR4XqAsQOwMPSakfcNzpTn0Jc7b8aFxXcjK9cJay68Xqn9b
TXTgoogle-site-verification=VxNOqXRiTfBZEja2TbHMcwM3i0FcGUitTMxTa9CdXAg
TXTe2ma-verification=jv3cb
TXTe2ma-verification=tqqfb
TXTjamf-site-verification=2LbyJCbxBoCYL2FzaVVnoA
TXTatlassian-sending-domain-verification=3e62be3c-15a0-4c29-b220-9228dccda4d6
TXTasv=f0db2381d25189259bae9b4f5b96470a
TXTgoogle-site-verification=VTUhJp3AMqjMfqUIY6tdlBsNKZLr-E_D0oN0Z96EW_E
TXTiContact1742283
TXTiContact1673295
TXTyahoo-verification-key=m1mvmfsoVrobVlqVWZx2Cp3YBfQa4w4jqe7f1pXZsdg=
TXTiContact1567195
TXT88n3v2rofr6e5as8nu1tfnq6mg
TXTe2ma-verification=vsg
TXTiContact1053803
TXTe2ma-verification=fbqeb
TXTadobe-sign-verification=8c1cf31e238f6042bd9a6e8424ecd7af
TXTe2ma-verification=rhq
TXTMS=ms29427067
TXTiContact1560489
TXTe2ma-verification=e8qeb
TXTairtable-verification=7d15715bf3281d4f6ab41a64ff551dd6
TXTairtable-verification=979478a7fc8cd2102187835add26f443
TXTe2ma-verification=spmfb
TXTgoogle-site-verification=Cx538Bo1iba_0Qw1ca-yfo2f0E50HuiB5AzF1oasBOc
TXTcoursera-domain-verification=dOLNWQ6sTftvfDnosc2HzaPlo9Fq2JKvoTNk0TrDuQdAoJlCqcvFEumPwWJgHVfn
TXTe2ma-verification=yq0fb
TXTe2ma-verification=qqqfb
TXTe2ma-verification=sqqfb
TXTgoogle-site-verification=5TXsU4v41p3-uJbMWepQdYbg8ydDm7pZqZpyL43nBec
TXT00D1I000000nhfJ=1TBcx00000002bK
TXTciscocidomainverification=2d1dd96a4eb257ed827359fa052171ab2c46910868187a2bc9365f496904b651
TXT91TR4AEZ87EVJCSEOKTFQJ1KGWHDG7PQ4T52XL7YQ
TXTe2ma-verification=0dhfb
TXTe2ma-verification=fu4
TXTe2ma-verification=ru6fb
TXTe2ma-verification=984fb
TXTwebexdomainverification.DW7B=b34c0222-460e-4621-bb5b-7ce6ee15ead2
TXTd365mktkey=DVSS3DGKRQNGACvj4bqW577P8t7hrVqGDWyDQzJFAtwx
TXTiContact1788229
TXTe2ma-verification=9bjib
TXTd365mktkey=9UxytuxfXT7fQ5X2Wqo5UgHrC9MfXzESiUXsydjgVbkx
TXTv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
TXTairtable-verification=776ba9943f279be2814d0f5b7bf99b5c
TXTamazonses:kvjwShx2VuYQZKM31gjyJ9z5IWLmFmkF2BSfMHV5j2I=
TXTfacebook-domain-verification=z3gz759ai6md22t5oavjekfy06n11r
TXTe2ma-verification=khq
TXTwebexdomainverification.DW7A=3d54276f-7c3e-4b36-82cb-f9283bd66232
TXTgoogle-site-verification=WyhytImncSxgmBWxa1o1_nGcNS2LuzeYvzApLAE2qVA
TXTgoogle-site-verification=fohuGSMCupMBfLvJ-OqvhaNOUrd4-VJzOA_hUjfM0GQ
TXTadobe-idp-site-verification=76438831-136f-42eb-8467-627bcd13bec6
SOAdns-auth-01.oit.duke.edu datacom-hostmaster.duke.edu serial 755460869

Certificates

Source: Certificate Transparency logs
First certificate seen
2026-10-13 21:13 UTC since dot.bi started watching
Last certificate seen
2026-10-14 04:35 UTC
Certificates observed
48
Issuers
Sectigo Limited

Hosting

Source: DNS + Team Cymru
IP
152.3.70.87
Network
AS13371 · DUKE-INTERCHANGE - Duke University, US
Provider
Duke University
Country
US (network registration, not server location)
CDN
none detected
IPv6
no

Web

Source: dot.bi probe

Probing the home page…

Email

Source: DNS

Protected Mail is authenticated and spoofed mail is quarantined.

Provider
Microsoft 365
SPF
present all: softfail
DMARC
p=quarantine reports on
DKIM
found selector: selector1

Age

Source: Wayback Machine
First capture
looking up…
Years archived
—
Registry created
—
In dot.bi since
2026-10-13 · Majestic Million

Name analysis

dot.bi dictionaries EN · FR
Words
duke EN single
Length
4 characters
Digits · hyphens
none · none
Readability
high
Brandability
100 / 100 heuristic

Same name, other TLDs

DNS check, cached a day

Checking the same name on other TLDs…

History observed by dot.bi

Since 2026-10-130 events