ct-radar_
PricingDocs
search

fly.io

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

csv export pro
Filters
20 on page · 184 matched
total records
184
active · on this page
0
expired · on this page
20
unique issuers · on this page
3
issuers on this pageGoogle Trust12Let's Encrypt4Microsoft4
domainissuervalidstatus
docker-hub-mirror.fly.iocrt.sh
Let's Encrypt
Let's EncryptMar 7, 2025→Jun 5, 2025expired 11mo ago
docker-hub-mirror.fly.iocrt.sh
Google Trust
Google TrustMar 7, 2025→Jun 5, 2025expired 11mo ago
sso.fly.iocrt.sh
Google Trust
Google TrustMar 2, 2025→May 31, 2025expired 11mo ago
sso.fly.iocrt.sh
Microsoft
MicrosoftMar 2, 2025→May 31, 2025expired 11mo ago
community.fly.iocrt.sh
Google Trust
Google TrustMar 1, 2025→May 30, 2025expired 11mo ago
community.fly.iocrt.sh
Google Trust
Google TrustMar 1, 2025→May 30, 2025expired 11mo ago
auth.fly.iocrt.sh
Google Trust
Google TrustFeb 28, 2025→May 29, 2025expired 11mo ago
auth.fly.iocrt.sh
Google Trust
Google TrustFeb 28, 2025→May 29, 2025expired 11mo ago
registry-iad.fly.iocrt.sh
Google Trust
Google TrustFeb 26, 2025→May 27, 2025expired 11mo ago
registry-iad.fly.iocrt.sh
Google Trust
Google TrustFeb 26, 2025→May 27, 2025expired 11mo ago
registry-iad.fly.iocrt.sh
Google Trust
Google TrustFeb 26, 2025→May 27, 2025expired 11mo ago
registry2.fly.iocrt.sh
Let's Encrypt
Let's EncryptFeb 25, 2025→May 26, 2025expired 11mo ago
registry2.fly.iocrt.sh
Google Trust
Google TrustFeb 25, 2025→May 26, 2025expired 11mo ago
registry3.fly.iocrt.sh
Let's Encrypt
Let's EncryptFeb 20, 2025→May 21, 2025expired 11mo ago
registry3.fly.iocrt.sh
Microsoft
MicrosoftFeb 20, 2025→May 21, 2025expired 11mo ago
litefs.fly.iocrt.sh
Let's Encrypt
Let's EncryptFeb 20, 2025→May 21, 2025expired 11mo ago
litefs.fly.iocrt.sh
Microsoft
MicrosoftFeb 20, 2025→May 21, 2025expired 11mo ago
litefs.fly.iocrt.sh
Microsoft
MicrosoftFeb 20, 2025→May 21, 2025expired 11mo ago
words.fly.iocrt.sh
Google Trust
Google TrustFeb 13, 2025→May 14, 2025expired 11mo ago
litefs-staging.fly.iocrt.sh
Google Trust
Google TrustFeb 12, 2025→May 13, 2025expired 11mo ago
showing 41–60 · 3/10
prevnext
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

Related domains under .io

elevenlabs.iokubernetes.iometamask.iotrezor.ioopensea.iomagiceden.ioblur.iocensys.ioshodan.iourlscan.iocrates.ioredis.io

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).