ExpiryRadar Certificate Watch

SSL expiry and config drift alerts for small site owners

Problem

Small site owners and indie developers juggle several domains and servers, tracking SSL expiry and config drift from memory until one expires and the whole site throws alarms. Existing monitors are either heavy or treat certificates as an afterthought, so there is no lightweight tool focused on cert chains, expiry, and config issues.

Solution

Users paste domains in bulk and the service periodically checks certificate chain, expiry, TLS config, and common misconfigurations, sending tiered reminders before expiration. A free instant self-check page serves as the acquisition funnel.

Users

Indie developers, small site owners, and solo ops consultants or small agencies

MVP

Bulk domain onboarding with expiry countdown; cert chain and TLS config checks; 30/7/1-day email reminders; free single-domain instant check page; Slack/webhook notifications

Revenue

Low-cost annual subscription by domain count; free single-domain check for acquisition; agency tier grouped by client

Why now

Free certificates mean more domains with shorter cycles, and outsourced ops means nobody watches certs full-time; entry cost is low with a clear acquisition path