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olcsupport.office.com

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

csv export pro
total records
7
active · on this page
2
expired · on this page
5
unique issuers · on this page
4
issuers on this pageLet's Encrypt4Microsoft1DigiCert1GlobalSign1
domainstatus
olcsupport.office.comcrt.sh
Microsoft
expires in 3mo
olcsupport.office.comcrt.sh
Let's Encrypt
expired 11mo ago
olcsupport.office.comcrt.sh
Let's Encrypt
expired 1y ago
olcsupport.office.comcrt.sh
Let's Encrypt
expired 11mo ago
olcsupport.office.comcrt.sh
Let's Encrypt
expired 11mo ago
olcsupport.office.comcrt.sh
DigiCert
expired 5mo ago
olcsupport.office.comcrt.sh
GlobalSign
expires in 23d
Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar olcsupport.office.com | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar olcsupport.office.com | nuclei
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Related domains under .com

About certificate history for olcsupport.office.com

This page lists every X.509 (SSL/TLS) certificate ever issued for olcsupport.office.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 olcsupport.office.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).