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Gridlode
Rank #634Updated November 10, 2026

duke.edu

Duke University - Fueled by creativity, informed by scholarship

The site runs on Drupal, WordPress, jQuery and 5 other technologies. Its email security grade is C. Its SSL certificate is issued by Sectigo Limited and is valid for 192 more days.

Domain age
—
Technologies
8
Email security
C
SSL days left
192

DNS records

TypeValueTTL
A152.3.70.87300
A152.3.72.243300
MXduke-edu.mail.protection.outlook.com 10300
NSdns-auth-01.oit.duke.edu21600
NSdns-auth-02.oit.duke.edu21600
NSdns-nc1-01.oit.duke.edu21600
TXTVqIKTw/sDnE4e+9lXPalJqYaTtomECjG0+6XKvd2Nhfkaw8aAfgvcZjlAshHEjspbTHBtw4hhkk5X1ITTvdWxw==3600
TXTciscocidomainverification=2d1dd96a4eb257ed827359fa052171ab2c46910868187a2bc9365f496904b6513600
TXTe2ma-verification=e8qeb3600
TXT1password-site-verification=Y3VALDXXNFEVBGZLI56XBT6MKY3600
TXTe2ma-verification=ru6fb3600
TXTairtable-verification=7d15715bf3281d4f6ab41a64ff551dd63600
TXTiContact15604893600
TXTe2ma-verification=spmfb3600
TXTe2ma-verification=jv3cb3600
TXTd365mktkey=DVSS3DGKRQNGACvj4bqW577P8t7hrVqGDWyDQzJFAtwx3600
TXTairtable-verification=979478a7fc8cd2102187835add26f4433600
TXT91TR4AEZ87EVJCSEOKTFQJ1KGWHDG7PQ4T52XL7YQ3600

Technology stack

JavaScript library
Programming language

Analytics and advertising IDs

google_tag_manager:GTM-PSPVTBK

SSL certificate

ValidValid
IssuerGB, Sectigo Public Server Authentication CA OV R36, Sectigo Limited
ExpiresMay 21, 2027
Days remaining192
ProtocolTLSv1.3
Nameswww.duke.edu, duke.edu

Email security

CScore 77/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
  • goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
  • goodDMARC aggregate reports are sent to mailto:[email protected], mailto:[email protected].
  • goodDKIM keys found (selector: selector1, selector2, k2, s1, s2).
  • good1 MX record(s) found. Mail is handled by Microsoft 365.

Homepage metadata

TitleDuke University - Fueled by creativity, informed by scholarship
DescriptionFueled by creativity, informed by scholarship
Languageen-US
Canonicalhttps://www.duke.edu/
Structured dataCollectionPage, BreadcrumbList, WebSite, Organization
IndexableYes
Word count1539

About duke.edu

What technology does duke.edu use?

We detected 8 technologies on duke.edu, including Drupal, WordPress, jQuery, jQuery Migrate, PHP, Yoast SEO.

Does duke.edu protect its email with SPF and DMARC?

duke.edu scores 77/100 (grade C) for email security. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection. No TLS-RPT record, so you won't hear about failed encrypted deliveries.

What are the name servers of duke.edu?

duke.edu uses dns-auth-01.oit.duke.edu, dns-auth-02.oit.duke.edu, dns-nc1-01.oit.duke.edu.