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dev.to

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

csv export pro
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11 on page · 71 matched
total records
71
active · on this page
1
expired · on this page
10
unique issuers · on this page
5
issuers on this pageLet's Encrypt7Google Trust1GoDaddy1Microsoft1Global Digital Cyber…1
domainissuervalidstatus
assets.dev.tocrt.sh
Let's Encrypt
Let's EncryptJan 6, 2026→Apr 6, 2026expired 1mo ago
media.dev.tocrt.sh
Google Trust
Google TrustDec 20, 2025→Mar 20, 2026expired 1mo ago
docs.dev.tocrt.sh
Let's Encrypt
Let's EncryptDec 14, 2025→Mar 14, 2026expired 1mo ago
shop.dev.tocrt.sh
Let's Encrypt
Let's EncryptNov 29, 2025→Feb 27, 2026expired 2mo ago
shop.dev.tocrt.sh
Let's Encrypt
Let's EncryptNov 29, 2025→Feb 27, 2026expired 2mo ago
assets.dev.tocrt.sh
Let's Encrypt
Let's EncryptNov 22, 2025→Feb 20, 2026expired 2mo ago
media2.dev.tocrt.sh
Let's Encrypt
Let's EncryptNov 22, 2025→Feb 20, 2026expired 2mo ago
shop.dev.tocrt.sh
GoDaddy
GoDaddyNov 19, 2025→Feb 17, 2026expired 2mo ago
shop.dev.tocrt.sh
Microsoft
MicrosoftNov 19, 2025→Feb 17, 2026expired 2mo ago
link.dev.tocrt.sh
Global Digital Cyber…
Global Digital Cyber…Aug 3, 2025→Nov 1, 2025expired 6mo ago
assets.dev.tocrt.sh
Let's Encrypt
Let's EncryptMar 13, 2026→Jun 11, 2026expires in 1mo
showing 61–71 · 4/4
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Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar dev.to | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar dev.to | nuclei
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About certificate history for dev.to

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