# RootCerts.com — LLM.txt
Domain: https://rootcerts.com
Purpose: An open, editorial reference that tracks the standards, technologies, and operational practices behind digital certificates, PKI, automation, and post-quantum security.
Audience: PKI engineers, platform teams, security architects, compliance officers, developers, and executives who need to understand what changed, how it works, and what to do next.

What you will find here:
- Today feed: a high-signal summary of current digital-trust developments and deadlines.
- Certificate Atlas: every major certificate type explained side-by-side (subject, issuer, validity, protocols, failure modes, PQC implications).
- Use cases: where certificates are used (TLS, mTLS, code signing, email, IoT/OT, SPIFFE, etc.).
- Management model: an eight-stage operating model for certificate lifecycle, ownership, and renewal.
- 47-Day TLS Center: timeline, workload calculator, and action plan for the CA/B Forum short-lived certificate transition.
- Standards Radar: ballots, RFCs, and regulatory updates with impact and effective dates.
- Post-Quantum Center: PQC algorithms, size/cost estimates, migration timelines, and a crypto-agility readiness assessment.
- Newsroom: curated industry digest articles.
- Tools: interactive visualizers and labs (trust chain, Merkle proofs, lifecycle, workload calculator, readiness assessment).
- Glossary: plain-language PKI vocabulary.
- Sources: the evidence hierarchy and references used across the site.

How to use this site:
- Use the command palette (⌘K / Ctrl+K or “/”) to jump to any page, tool, or term.
- Each page has its own metadata, structured data, and canonical URL.
- Content is grouped into three pillars: Understand (what it is), Change (what is changing), and Operate (how to run it).

Editorial policy:
- Claims are tied to a source tier: standards body, root program, government, certification authority, or research.
- Effective dates, ballot numbers, and RFCs are cited where possible.
- The site does not sell certificates; it explains how the ecosystem works.

For a complete machine-readable index of pages, tools, and concepts, see https://rootcerts.com/llm-full.txt.