How many SSL certificates have been issued for zendesk.com?

Our index has recorded 2,212 certificates for zendesk.com across public Certificate Transparency logs. This includes the apex domain and all subdomains.

How can I monitor new certificates for zendesk.com?

Sign up for a free account to add zendesk.com to your watchlist. CT Radar will alert you whenever a new certificate is issued for the domain or any subdomain. Useful for detecting unauthorized issuance, phishing, or shadow IT.

What subdomains exist for zendesk.com?

Certificate Transparency logs reveal historical subdomains because every TLS certificate's Subject Alternative Names (SANs) are publicly logged. The result table on this page lists subdomains discovered for zendesk.com. For programmatic access, use the ct-radar CLI: `pip install ct-radar && ct-radar zendesk.com`.

Is this data official?

Yes. Certificate Transparency is a Google-led initiative (RFC 6962) requiring all Certificate Authorities to publicly log every certificate they issue. CT Radar continuously ingests Cloudflare Nimbus and Google Argon CT logs. Data is canonical, not crowdsourced.

zendesk.com

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

csv export pro

total records

2,212

active · on this page

expired · on this page

unique issuers · on this page

issuers on this pageLet's Encrypt11Google Trust9

domain	issuer	valid	status
a4b.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
a4b.zendesk.com crt.sh Google Trust	Google Trust	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
acheimega.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
acheimega.zendesk.com crt.sh Google Trust	Google Trust	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
abu9161.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
abu9161.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
abu9161.zendesk.com crt.sh Google Trust	Google Trust	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
4service.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
4service.zendesk.com crt.sh Google Trust	Google Trust	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
11g.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
11g.zendesk.com crt.sh Google Trust	Google Trust	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
accentsupplychain1707800928.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
accentsupplychain1707800928.zendesk.com crt.sh Google Trust	Google Trust	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
agmarvinpteltd.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
agmarvinpteltd.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
agmarvinpteltd.zendesk.com crt.sh Google Trust	Google Trust	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
afterfit.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
afterfit.zendesk.com crt.sh Google Trust	Google Trust	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
abm2984.zendesk.com crt.sh Let's Encrypt	Let's Encrypt	Apr 1, 2025→Jun 30, 2025	expired 10mo ago
abm2984.zendesk.com crt.sh Google Trust	Google Trust	Apr 1, 2025→Jun 30, 2025	expired 10mo ago

Pipe results into your recon pipeline

# Python
$ pip install ct-radar
$ ct-radar zendesk.com | httpx -silent

# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar zendesk.com | nuclei

Free tier: 100 searches/day · Pro $29/mo for 10,000/day

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About certificate history for zendesk.com

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