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usp.outlook.com

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

csv export pro
total records
4
active · on this page
4
expired · on this page
0
unique issuers · on this page
2
issuers on this pageMicrosoft3cPanel1
domainstatus
usp.outlook.comcrt.sh
Microsoft
expires in 4mo
usp.outlook.comcrt.sh
Microsoft
expires in 3mo
usp.outlook.comcrt.sh
Microsoft
expires in 3mo
usp.outlook.comcrt.sh
cPanel
expires in 2d
Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar usp.outlook.com | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar usp.outlook.com | nuclei
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About certificate history for usp.outlook.com

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