DNS Report: duke.edu

Generated: 2026-08-08T18:49:22-05:00

79/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/302 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/203 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
ERRORCAA policy0/5Certificate authority restriction.
OKDNS propagation10/10Agreement between public resolvers.
OKMX records20/201 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
OKDKIM20/20A DKIM selector was verified.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/5590 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
ERRORHTTP security headers0/350 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: www-duke-fitz.oit.duke.edu
OKIPv4 diversity35/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
OKHTTP response40/40HTTP/1.1 200 OK
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
152.3.72.243
152.3.70.87
AAAA
CNAME
MX
10 duke-edu.mail.protection.outlook.com.
TXT
"e2ma-verification=ru6fb"
"atlassian-sending-domain-verification=3e62be3c-15a0-4c29-b220-9228dccda4d6"
"airtable-verification=7d15715bf3281d4f6ab41a64ff551dd6"
"adobe-sign-verification=8c1cf31e238f6042bd9a6e8424ecd7af"
"iContact1742283"
"webexdomainverification.DW7A=3d54276f-7c3e-4b36-82cb-f9283bd66232"
"jamf-site-verification=2LbyJCbxBoCYL2FzaVVnoA"
"1password-site-verification=Y3VALDXXNFEVBGZLI56XBT6MKY"
"iContact1567195"
"e2ma-verification=qqqfb"
"e2ma-verification=rhq"
"iContact1053803"
"facebook-domain-verification=z3gz759ai6md22t5oavjekfy06n11r"
"e2ma-verification=vsg"
"e2ma-verification=d3hfb"
"e2ma-verification=9bjib"
"e2ma-verification=yq0fb"
"e2ma-verification=984fb"
"e2ma-verification=chxfb"
"00D1I000000nhfJ=1TBcx00000002bK"
"e2ma-verification=khq"
"e2ma-verification=fu4"
"VqIKTw/sDnE4e+9lXPalJqYaTtomECjG0+6XKvd2Nhfkaw8aAfgvcZjlAshHEjspbTHBtw4hhkk5X1ITTvdWxw=="
"e2ma-verification=fbqeb"
"91TR4AEZ87EVJCSEOKTFQJ1KGWHDG7PQ4T52XL7YQ"
"ciscocidomainverification=2d1dd96a4eb257ed827359fa052171ab2c46910868187a2bc9365f496904b651"
"e2ma-verification=0dhfb"
"MS=ms29427067"
"e2ma-verification=tqqfb"
"adobe-idp-site-verification=76438831-136f-42eb-8467-627bcd13bec6"
"airtable-verification=776ba9943f279be2814d0f5b7bf99b5c"
"airtable-verification=979478a7fc8cd2102187835add26f443"
"e2ma-verification=wc0fb"
"d365mktkey=9UxytuxfXT7fQ5X2Wqo5UgHrC9MfXzESiUXsydjgVbkx"
"atlassian-domain-verification=JNWA1j8qak7X8iJmucR4XqAsQOwMPSakfcNzpTn0Jc7b8aFxXcjK9cJay68Xqn9b"
"webexdomainverification.DW7B=b34c0222-460e-4621-bb5b-7ce6ee15ead2"
"e2ma-verification=spmfb"
"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
"iContact1673295"
"d365mktkey=DVSS3DGKRQNGACvj4bqW577P8t7hrVqGDWyDQzJFAtwx"
"yahoo-verification-key=m1mvmfsoVrobVlqVWZx2Cp3YBfQa4w4jqe7f1pXZsdg="
"google-site-verification=fohuGSMCupMBfLvJ-OqvhaNOUrd4-VJzOA_hUjfM0GQ"
"google-site-verification=VxNOqXRiTfBZEja2TbHMcwM3i0FcGUitTMxTa9CdXAg"
"anthropic-domain-verification-z8t79x=2ToUeCCwAOnrDzSEM9VxiJHeX"
"google-site-verification=5TXsU4v41p3-uJbMWepQdYbg8ydDm7pZqZpyL43nBec"
"88n3v2rofr6e5as8nu1tfnq6mg"
"asv=f0db2381d25189259bae9b4f5b96470a"
"e2ma-verification=jv3cb"
"google-site-verification=WyhytImncSxgmBWxa1o1_nGcNS2LuzeYvzApLAE2qVA"
"e2ma-verification=sqqfb"
"e2ma-verification=e8qeb"
"google-site-verification=Cx538Bo1iba_0Qw1ca-yfo2f0E50HuiB5AzF1oasBOc"
"iContact1788229"
"coursera-domain-verification=dOLNWQ6sTftvfDnosc2HzaPlo9Fq2JKvoTNk0TrDuQdAoJlCqcvFEumPwWJgHVfn"
"amazonses:kvjwShx2VuYQZKM31gjyJ9z5IWLmFmkF2BSfMHV5j2I="
"google-site-verification=VTUhJp3AMqjMfqUIY6tdlBsNKZLr-E_D0oN0Z96EW_E"
"iContact1560489"
NS
dns-auth-01.oit.duke.edu.
dns-nc1-01.oit.duke.edu.
dns-auth-02.oit.duke.edu.
SOA
dns-auth-01.oit.duke.edu. datacom-hostmaster.duke.edu. 755460798 1200 180 1209600 3600
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP