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fly.io

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

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20 on page · 183 matched
total records
183
active · on this page
0
expired · on this page
20
unique issuers · on this page
7
issuers on this pageUnknown Issuer6GoDaddy5Google Trust4Microsoft2Let's Encrypt1Amazon1GlobalSign1
domainissuervalidstatus
registry3.fly.iocrt.sh
Google Trust
Google TrustDec 20, 2024→Mar 20, 2025expired 1y ago
registry3.fly.iocrt.sh
GoDaddy
GoDaddyDec 20, 2024→Mar 20, 2025expired 1y ago
litefs.fly.iocrt.sh
Google Trust
Google TrustDec 20, 2024→Mar 20, 2025expired 1y ago
litefs.fly.iocrt.sh
GoDaddy
GoDaddyDec 20, 2024→Mar 20, 2025expired 1y ago
words.fly.iocrt.sh
GoDaddy
GoDaddyDec 15, 2024→Mar 15, 2025expired 1y ago
get.fly.iocrt.sh
Google Trust
Google TrustDec 14, 2024→Mar 14, 2025expired 1y ago
get.fly.iocrt.sh
GoDaddy
GoDaddyDec 14, 2024→Mar 14, 2025expired 1y ago
litefs-staging.fly.iocrt.sh
GoDaddy
GoDaddyDec 12, 2024→Mar 12, 2025expired 1y ago
litefs-staging.fly.iocrt.sh
Google Trust
Google TrustDec 12, 2024→Mar 12, 2025expired 1y ago
tokenizer.fly.iocrt.sh
Let's Encrypt
Let's EncryptNov 18, 2024→Feb 16, 2025expired 1y ago
fly.iocrt.sh
Unknown Issuer
Unknown IssuerNov 11, 2024→Feb 9, 2025expired 1y ago
registry2.fly.iocrt.sh
Unknown Issuer
Unknown IssuerOct 26, 2024→Jan 24, 2025expired 1y ago
email.e.fly.iocrt.sh
Unknown Issuer
Unknown IssuerNov 11, 2024→Feb 9, 2025expired 1y ago
words.fly.iocrt.sh
Amazon
AmazonOct 16, 2024→Jan 14, 2025expired 1y ago
community.fly.iocrt.sh
GlobalSign
GlobalSignNov 13, 2025→Feb 11, 2026expired 2mo ago
web.fly.iocrt.sh
Microsoft
MicrosoftMar 23, 2023→Jun 21, 2023expired 2y ago
api.fly.iocrt.sh
Microsoft
MicrosoftJan 29, 2023→Apr 29, 2023expired 3y ago
gravitas.fly.iocrt.sh
Unknown Issuer
Unknown IssuerDec 27, 2022→Mar 27, 2023expired 3y ago
registry.fly.iocrt.sh
Unknown Issuer
Unknown IssuerNov 30, 2022→Feb 28, 2023expired 3y ago
web.fly.iocrt.sh
Unknown Issuer
Unknown IssuerNov 23, 2022→Feb 21, 2023expired 3y ago
showing 121–140 · 7/10
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Pipe results into your recon pipeline
# Python
$ pip install ct-radar
$ ct-radar fly.io | httpx -silent
# Go
$ go install github.com/imfht/ct-radar-cli/cli@latest
$ ct-radar fly.io | nuclei
Free tier: 100 searches/day · Pro $29/mo for 10,000/day

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About certificate history for fly.io

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