search

edx.org

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

csv export pro
total records
1,878
active · on this page
0
expired · on this page
20
unique issuers · on this page
2
issuers on this pageGoogle Trust13Let's Encrypt7
domainstatus
masters.edx.orgcrt.sh
Google Trust
expired 10mo ago
cms.edx.orgcrt.sh
Google Trust
expired 10mo ago
cms.edx.orgcrt.sh
Let's Encrypt
expired 10mo ago
checkout.stage.edx.orgcrt.sh
Let's Encrypt
expired 10mo ago
checkout.stage.edx.orgcrt.sh
Google Trust
expired 10mo ago
checkout.stage.edx.orgcrt.sh
Google Trust
expired 10mo ago
zt01.edx.orgcrt.sh
Google Trust
expired 10mo ago
zt01.edx.orgcrt.sh
Google Trust
expired 10mo ago
*.sandbox.edx.orgcrt.sh
Google Trust
expired 10mo ago
*.sandbox.edx.orgcrt.sh
Google Trust
expired 10mo ago
dev.cms.edx.orgcrt.sh
Google Trust
expired 10mo ago
dev.cms.edx.orgcrt.sh
Let's Encrypt
expired 10mo ago
dev.cms.edx.orgcrt.sh
Google Trust
expired 10mo ago
access.edx.orgcrt.sh
Google Trust
expired 10mo ago
access.edx.orgcrt.sh
Let's Encrypt
expired 10mo ago
partnerships.edx.orgcrt.sh
Let's Encrypt
expired 11mo ago
partnerships.edx.orgcrt.sh
Let's Encrypt
expired 11mo ago
checkout.edx.orgcrt.sh
Let's Encrypt
expired 11mo ago
edx-exams.edx.orgcrt.sh
Google Trust
expired 11mo ago
edx-exams-internal.edx.orgcrt.sh
Google Trust
expired 11mo ago
Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar edx.org | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar edx.org | nuclei
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Related domains under .org

About certificate history for edx.org

This page lists every X.509 (SSL/TLS) certificate ever issued for edx.org 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 edx.org for newly-issued certificates in real-time (useful for detecting unauthorized issuance, phishing variants, or shadow IT) add it to your watchlist (Pro plan).