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notion.so

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

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Filters
20 on page · 494 matched
total records
494
active · on this page
0
expired · on this page
20
unique issuers · on this page
2
issuers on this pageGoogle Trust14Let's Encrypt6
domainissuervalidstatus
mail.dev.notion.socrt.sh
Google Trust
Google TrustJan 30, 2025→Apr 30, 2025expired 1y ago
mail.dev.notion.socrt.sh
Google Trust
Google TrustFeb 4, 2025→May 5, 2025expired 1y ago
*.mail.dev.notion.socrt.sh
Google Trust
Google TrustFeb 4, 2025→May 5, 2025expired 1y ago
mail.dev.notion.socrt.sh
Let's Encrypt
Let's EncryptFeb 4, 2025→May 5, 2025expired 1y ago
*.mail.dev.notion.socrt.sh
Let's Encrypt
Let's EncryptFeb 4, 2025→May 5, 2025expired 1y ago
api.mail.notion.socrt.sh
Google Trust
Google TrustFeb 4, 2025→May 5, 2025expired 1y ago
api.mail.notion.socrt.sh
Let's Encrypt
Let's EncryptFeb 4, 2025→May 5, 2025expired 1y ago
mg.mail.notion.socrt.sh
Let's Encrypt
Let's EncryptFeb 2, 2025→May 3, 2025expired 1y ago
front-preview.notion.socrt.sh
Google Trust
Google TrustJan 30, 2025→Apr 30, 2025expired 1y ago
*.front-preview.notion.socrt.sh
Google Trust
Google TrustJan 30, 2025→Apr 30, 2025expired 1y ago
front-preview.notion.socrt.sh
Google Trust
Google TrustJan 30, 2025→Apr 30, 2025expired 1y ago
*.front-preview.notion.socrt.sh
Google Trust
Google TrustJan 30, 2025→Apr 30, 2025expired 1y ago
identity.notion.socrt.sh
Google Trust
Google TrustJan 30, 2025→Apr 30, 2025expired 1y ago
identity.notion.socrt.sh
Google Trust
Google TrustJan 30, 2025→Apr 30, 2025expired 1y ago
identity.notion.socrt.sh
Let's Encrypt
Let's EncryptJan 30, 2025→Apr 30, 2025expired 1y ago
mail.notion.socrt.sh
Google Trust
Google TrustJan 30, 2025→Apr 30, 2025expired 1y ago
mail.dev.notion.socrt.sh
Let's Encrypt
Let's EncryptJan 30, 2025→Apr 30, 2025expired 1y ago
front-prod.notion.socrt.sh
Google Trust
Google TrustJan 25, 2025→Apr 25, 2025expired 1y ago
front-stg.notion.socrt.sh
Google Trust
Google TrustJan 24, 2025→Apr 24, 2025expired 1y ago
front-dev.notion.socrt.sh
Google Trust
Google TrustJan 24, 2025→Apr 24, 2025expired 1y ago
showing 121–140 · 7/25
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Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar notion.so | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar notion.so | nuclei
Free tier: 100 searches/day · Pro $29/mo for 10,000/day

About certificate history for notion.so

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