Products

Tools for the job at hand

Infrastructure and security is one line of work. Education, games, and collector tools are the other — grouped below by who they are for.

Infrastructure & security

Featured. Hosted Certificate Transparency monitoring for teams.

Hosted Infrastructure · Security

Certwatch

An inventory of certificates published for your domains, built only from public Certificate Transparency logs. Expired and expiring certificates are highlighted, and a live check can show the certificate a host is actually serving.

  • Issuer, names, key, signature, and expiry
  • Expired and expiring certificates highlighted, with CSV export
  • Live endpoint checks
  • Owner, admin, and viewer roles, with an audit log
Start free View Certwatch

Education & games

Simulations and coaching tools where the useful interface is the activity itself. These pages are on playedu.games.

Alpha Athletics · Analytics

SportsMan

A football play-by-play tracker for K-12 coaches. The full page and demo are on playedu.games.

View SportsMan
Alpha Classroom · Simulation

FactorySim

A single-player factory simulation for business and engineering courses. The full page and demo are on playedu.games.

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Collectors

Catalogs, prices, and decisions that should not live in a spreadsheet. These pages are on playedu.games.

Alpha Open Source Collectors · Tools

TCG Scanner

Open-source card image recognition for trading card collectors. The project page is on playedu.games.

View TCG Scanner
Alpha Collectors · Analytics

GradeWise Comics

Comic collection intelligence: values, rarity, and whether grading will pay off. The full page is on playedu.games.

View GradeWise

Start a Certwatch account, or reach out about a game, a classroom tool, or a collector app.