search

harvard.edu

Every SSL/TLS certificate ever issued for this name, indexed from public CT logs.

csv export pro
total records
2,000
active · on this page
0
expired · on this page
20
unique issuers · on this page
2
issuers on this pageGlobal Digital Cyber…19ZeroSSL1
domainstatus
*.med.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
*.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
*.hcp.med.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
computationalbiomed.hms.harvard.educrt.sh
ZeroSSL
expired 10mo ago
*.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
*.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
admissions.gradeducation.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
cgap-msa.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
xwebservices.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
bioplex.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
amprod.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
calendars.med.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
genetics.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
www.genome.med.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
security.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
internal.parking.med.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
genome.med.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
calendars.med.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
cgap-mgb.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
admissions.gradeducation.hms.harvard.educrt.sh
Global Digital Cyber…
expired 11mo ago
Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar harvard.edu | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar harvard.edu | nuclei
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Related domains under .edu

About certificate history for harvard.edu

This page lists every X.509 (SSL/TLS) certificate ever issued for harvard.edu and its subdomains, as recorded in public Certificate Transparency (CT) logs. CT logs are an immutable, append-only record of every certificate issued by participating Certificate Authorities (CAs), as required by the major browsers since 2018.

Subdomain enumeration via CT logs is one of the highest-signal techniques in reconnaissance — every time a TLS certificate is issued, all Subject Alternative Names (SANs) on that certificate become public. Internal and forgotten subdomains regularly show up here days after they're set up.

To monitor harvard.edu for newly-issued certificates in real-time (useful for detecting unauthorized issuance, phishing variants, or shadow IT) add it to your watchlist (Pro plan).