A website is no longer just a storefront; it is a continuously audited, multi-surface corporate asset. Search engines, AI answer systems, security scanners and social platforms re-read it every day. In most organisations this surface has no single owner: five disconnected scores from five tools, and no answer to what changed and does it work live. WebTrustEngine reduces this fragmentation to a single decision surface. The ten-domain readiness model gathers the technical truth — from security headers to delivery hygiene — into one score. Number discipline sits at the core of the product: checks, security patterns, measurement bridges and fixers are different units and are never merged into a single total; the detectable checks number three hundred and eleven and are counted from code. Review mode takes an evidenced baseline without touching a single file. SafeFix applies low-risk improvements on a working copy; changed files, a rollback manifest and a before-and-after score are delivered together. Build mode produces new static surfaces; authority to upload to the live server stays with the site owner. Deploy-Verify compares live headers, redirects and independent tool results against the expected set after upload; produced becomes verified live. The security approach defines its boundary openly: static review yes; active penetration testing only with written authorization and a separate scope. For visibility in the AI era, entity clarity, structured data, llms.txt and answer-ready content are built; no citation guarantee is given. The engine completes the passive scan, the evidence package and the decision report automatically, with no human-verification prerequisite; external-action guidance and post-deployment verification are part of the same chain. The first step is to see your current state with evidence. From there: SafeFix improvements, external action planning and live verification. Govern your website with evidence.