Know before your SSL or domain expires
Watches certificates and domains so renewals don't sneak up on you. Live TLS handshakes, public RDAP lookups, on-device reminders. Your list never goes to a SudoCod cloud.
Google Play available · Yearly Pro with 14-day free trial (~$0.99/year; may vary by country)
Powered by SudoCod · Package com.sudocod.domaincanary · API 34+
Pricing model
~$0.99 / year
Yearly via Google Play · product pro_subscription_1 · plan pro-yearly · offer trial-14d. Price may vary by country.
Free trial
14 days
Eligible new subscribers get a 14-day free trial before yearly billing.
Platform
Android 14+
Package com.sudocod.domaincanary · API 34+
Capability matrix
Key features
Hybrid checks, urgency filters, and local reminders, without another cloud account.
- Hybrid expiry checks
- SSL via live TLS + domain expiry via RDAP; set dates manually when needed.
- Hostname verified
- TLS hostname verification always runs, so a mismatched cert cannot spoof expiry.
- Clear urgency view
- Filter Critical / Soon / Healthy using local calendar days until expiry.
- Rich certificate details
- Issuer, subject, SANs, valid-from, and TLS version. Leaf expiry even when chain validation fails.
- Rich domain details
- Registrar, registered/updated dates, status, and name servers.
- Local reminders
- Configurable thresholds (default 30 / 14 / 7 / 1 days before expiry).
- Backup your way
- Android Auto Backup plus JSON export/import. Offline Pro entitlement cache is excluded.
- Private by design
- No login, no ads, no analytics SDK, no SudoCod servers for your domain list.
Signal pipeline
How it works
- 01
Add a hostname
Drop in a host with optional notes. Your list stays on-device.
- 02
Run signal checks
Auto-check SSL + domain expiry, or enter dates yourself when lookup isn’t enough.
- 03
Get early warning
Local reminders fire before Critical / Soon windows hit.
Operators
Who it's for
- Freelancers and indie hackers managing a handful of sites
- Small teams who want a phone-side expiry checklist without another SaaS
- Anyone who wants phone-side SSL/domain expiry tracking with a simple yearly plan
Privacy highlights
- No account
- Data stored on device
- Hostname verification always runs on TLS checks
- Network only to your hosts (TLS) and public RDAP for lookups
- Backups under your control; offline Pro entitlement cache excluded from Auto Backup
- Edge-to-edge layout uses window insets only; no extra personal data or permissions
Protocol
FAQ
- Does it need internet?
- Yes for fresh SSL/RDAP checks. Once dates are stored, you can still view them offline.
- Do you see my domains?
- No. SudoCod does not run a backend for your list.
- Is it a subscription?
- Yes. Yearly via Google Play (product pro_subscription_1, base plan pro-yearly, trial offer trial-14d) with a 14-day free trial for eligible new subscribers. About USD $0.99 per year after the trial (or the local equivalent; may vary by country). Cancel anytime in Google Play subscription settings.
- Can I move to a new phone?
- Yes. Android Auto Backup and/or JSON export/import in Settings restore domains and reminder settings. The offline Pro entitlement cache is not restored; the app re-checks Google Play when online.
- Is there an iOS app?
- This product page and privacy policy cover the Android app (API 34+). An iOS listing is not covered here.
Deploy
Put a canary on your domains
Yearly plan with a 14-day free trial on Google Play. Local-first monitoring for SSL and domain expiry.