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Rank #4,126Updated November 10, 2026

cert.org

CERT | CMU Software Engineering Institute

cert.org is registered with Amazon Registrar, Inc. since December 31, 1991 (34.9 years). The registration expires on November 19, 2034. The site runs on Django, Python, Content Security Policy and 3 other technologies. Its email security grade is D. Its SSL certificate is issued by InCommon, LLC and is valid for 79 more days.

Domain age
34.9 yrs
Technologies
6
Email security
D
SSL days left
79

Registration

RegistrarAmazon Registrar, Inc.
IANA ID468
RegisteredDecember 31, 1991
ExpiresNovember 19, 2034
UpdatedAugust 12, 2026
Statusclient transfer prohibited
Name serversns-1403.awsdns-47.org, ns-1794.awsdns-32.co.uk, ns-28.awsdns-03.com, ns-916.awsdns-50.net
DNSSECNot signed

DNS records

TypeValueTTL
A147.72.252.2423600
MXtilton.sei.cmu.edu 103600
MXtingley.sei.cmu.edu 103600
NSns-1403.awsdns-47.org172800
NSns-1794.awsdns-32.co.uk172800
NSns-28.awsdns-03.com172800
NSns-916.awsdns-50.net172800
CAAiodef 0 mailto:[email protected]3600
CAAissue 0 emsign.com3600
CAAissuewild 0 emsign.com3600
TXTDBCAA5143AC8DA050F83A2DCA34D21353600
TXTGjlKiHz4O+yqufLrRIiCkmyaNeKDsFtlP0EdfJ5Hd0ERRCB3rBFfT0hjRz5KpuVbK7z1iW6Vh6MtnSK/dHi1Lg==3600
TXTMS=ms993263953600
TXTgoogle-site-verification=XOhFzgbzrxnwXF_zY4WWTJSkIyRfIjEI8eaOJCx4WiI3600
TXTv=spf1 ip4:147.72.252.0/26 include:spf.protection.office365.us ?all3600

Technology stack

Programming language
Web framework
Web server

Analytics and advertising IDs

google_tag_manager:GTM-M62LG9

SSL certificate

ValidValid
IssuerUS, InCommon ECC OV SSL CA 3, InCommon, LLC
ExpiresJanuary 28, 2027
Days remaining79
ProtocolTLSv1.3
Nameswww.cert.org, cert.org

Email security

DScore 51/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnSPF ends with ?all, which tells receivers nothing. Use ~all or -all.
  • warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
  • warnDKIM key found (selector: selector1, selector2) but it is only 1024 bits; 2048 is recommended.
  • 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.
  • goodDMARC aggregate reports are sent to mailto:[email protected].
  • good2 MX record(s) found.

Homepage metadata

TitleCERT | CMU Software Engineering Institute
DescriptionThe Software Engineering Institute is leading and advancing software and cybersecurity to solve the nation's toughest problems.
Languageen
Canonicalhttps://www.sei.cmu.edu/divisions/cert/
IndexableYes
Word count986

About cert.org

Who is the registrar of cert.org?

cert.org is registered with Amazon Registrar, Inc. (IANA ID 468).

When does cert.org expire?

The current registration of cert.org expires on November 19, 2034. It was first registered on December 31, 1991.

What technology does cert.org use?

We detected 6 technologies on cert.org, including Python, Content Security Policy, HSTS, Google Tag Manager, Django, Uvicorn.

Does cert.org protect its email with SPF and DMARC?

cert.org scores 51/100 (grade D) for email security. SPF ends with ?all, which tells receivers nothing. Use ~all or -all. DMARC policy is none (monitoring only). Spoofed mail is still delivered.

What are the name servers of cert.org?

cert.org uses ns-1403.awsdns-47.org, ns-1794.awsdns-32.co.uk, ns-28.awsdns-03.com, ns-916.awsdns-50.net.