Small, sharp tools for developers.
Each one does a single thing properly, loads instantly, and doesn’t ask you to sign up. Nothing you type is stored.
SSL certificate checker
What certificate a domain is actually serving — expiry, issuer, hostname coverage, chain length.
DNS lookup
Records across two independent resolvers, with propagation disagreements flagged.
Cron parser soon
Next fire times on a calendar, with daylight-saving hazards called out.
HTTP checker soon
Status, headers and the full redirect chain in one request.
Why these tools
Most online dev utilities either upload your input somewhere, wrap a third-party API and call it a product, or bury the answer under adverts. These read live data, run the query at request time, and store nothing.