generated: '2026-08-12' method: probed source: >- live probes of Interpublic Group hosts 2026-08-12 plus openapi/interpublic-wp-rest-discovery-original.json versioning: scheme: namespace-in-path current: wp/v2 namespaces: - wp/v2 - wp-abilities/v1 - oembed/1.0 - root docs: https://developer.wordpress.org/rest-api/ note: >- Versioning is WordPress core's, not a policy Interpublic Group authored or publishes. There is no provider versioning statement. deprecation: policy_url: null sunset_header: false evidence: >- No Sunset or Deprecation response header observed on any endpoint; no deprecation policy page exists on any Interpublic Group host. No `Deprecation` pointer is emitted in apis.yml. sla: url: null uptime_target: null status_page: url: null evidence: >- status.interpublic.com does not resolve (DNS failure, 2026-08-12). No status page is linked from any reachable Interpublic Group page. No `StatusPage` pointer is emitted in apis.yml. deprecated_operations: [] surface_lifecycle: state: succeeded-by-acquisition detail: >- Omnicom completed its acquisition of Interpublic Group; www.interpublic.com now 301-redirects to https://www.omc.com/ for every HTML path, and newsroom permalinks 301 to investors.interpublic.com. The apex host interpublic.com still serves the original WordPress origin, and the REST API on it remains live and anonymous-readable. Content on it has stopped: the most recent post returned by GET /wp-json/wp/v2/posts is dated 2025-11-24, and the sitemap index reports lastmod 2025-11-26. Treat this API as a frozen archive of 346 corporate news posts rather than a maintained surface. evidence: - url: https://www.interpublic.com/ status: 301 note: terminates at https://www.omc.com/ - url: https://interpublic.com/wp-json/wp/v2/posts?per_page=2 status: 200 note: 'X-WP-Total: 346; newest post date 2025-11-24T09:58:23' - url: https://interpublic.com/sitemap_index.xml status: 200 note: 'newest lastmod 2025-11-26T23:29:52+00:00' gateway: host: api.interpublic.com vendor: Apigee state: live-but-unrouted detail: >- api.interpublic.com resolves and answers every path - including a nonsense control - with an Apigee fault (`messaging.adaptors.http.flow.ApplicationNotFound`, "Unable to identify proxy for host"). An API gateway is genuinely deployed on Interpublic Group's own domain, but no API proxy is bound to that virtual host publicly, so no basepath, spec or documentation can be discovered anonymously. Sixteen candidate basepaths were swept; all returned the same fault. evidence: - url: https://api.interpublic.com/ status: 404 - url: https://api.interpublic.com/nonexistent-control-xyz status: 404