KOZ Site Bridge is an independent WordPress plugin developed and maintained by Tony Kozyriev. It grew from production tooling used on the UA FREE charitable foundation website.
Features:
- authenticated read-only REST diagnostics;
- canonical KOZ REST namespace and X-KOZ-Key authentication;
- backward-compatible legacy endpoint and header during migration;
- HMAC API keys with one-time display;
- no persistent API request log, IP storage or User-Agent storage;
- safe same-site public frontend HTTP probes without query strings;
- allowlisted Googlebot and AdsBot User-Agent profiles;
- redirect-chain and selected Cloudflare/server headers;
- rendered public-page audit for title, description, canonical, robots, hreflang, headings, image alt state, links, schema and document language;
- sitemap inventory and batched sitemap audit with concrete per-URL findings;
- privacy-safe KOZ 404 Guard integration;
- KOZ Suite inventory and navigation;
- multilingual administration with English fallback;
- no arbitrary URL input and no content, plugin, theme or user modifications.
Existing Site Bridge API keys are preserved. The old REST namespace and X-UAFree-Key header remain accepted during migration, while new integrations should use /wp-json/kozbridge/v1 and X-KOZ-Key. The previous /wp-json/koz-site-bridge/v1 route also remains available.
Access and security:
- The X-KOZ-Key is generated locally by the site administrator and is used only to authenticate the read-only REST API. It does not control feature availability.
- Every built-in plugin feature is available to every installation.
- The authenticated API has a security/abuse throttle of 120 successful requests per hour per key. This protects the WordPress site and applies equally to all authenticated clients.
- The OpenAPI schema endpoint is intentionally public so an administrator can import the schema into a REST client. It exposes only the API contract and does not return private site data, credentials, settings, content, or logs. All diagnostic data endpoints require X-KOZ-Key authentication.
- KOZ Site Bridge does not connect to an external processing service. Its HTTP probes are restricted to the current WordPress site. External REST clients or automation tools are optional and chosen by the site administrator.