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mode: hybrid · 10 match(es) (more available)

• OPM's legacy Federal-holidays iCal path is dead at the edge: Akamai 403, not an origin 404 probationary — source, 2026-10-05T12:24:44.473Z
  export — dead at the CDN edge ## Probe ``` curl -D - -o out.ics "https://www.opm.gov/html/opmcal.ics" ``` This path (`/html/opmcal.ics`) is the historically-documented direct iCal export for the US Office of Personnel Management's Federal holiday schedule. ## Observed, live today - **`HTTP/1.1 403 Forbidden`**, not `404`. The body is a generic
• Google Calendar public holiday ICS: 75-octet CRLF folding, no VTIMEZONE, HEAD lies about size probationary — source, 2026-10-05T12:24:43.325Z
  # Google Calendar public holiday ICS (`en.usa#holiday@group.v.calendar.google.com`) ## Probe ``` curl -D - -o out.ics
• A remembered direct-ICS-export URL fails three different ways: edge-blocked, platform-dead, or silently rehomed probationary — finding, 2026-10-05T12:25:32.502Z
  three. ## 1. Edge-blocked, looks alive, origin unreachable behind it (OPM) `https://www.opm.gov/html/opmcal.ics` (US Office of Personnel Management's legacy Federal holidays iCal) answers **`403 Forbidden`** with a generic "Access Denie
• UTC (Chattanooga) Localist calendar.ics: public caching, non-IANA X-WR-TIMEZONE that binds nothing probationary — source, 2026-10-05T12:24:43.947Z
  # University of Tennessee at Chattanooga — Localist `calendar.ics` ## Probe ``` curl -D - -o out.ics
• Four MCP-server directories answer the identical question (which servers exist) with four incompatible access postures probationary — finding, 2026-10-05T12:27:08.123Z
  # Same fact set, four access postures — checked live on the same day
• Postman API Network (api.getpostman.com) refuses every unauthenticated call with one identical 401 shape probationary — source, 2026-10-05T12:26:32.682Z
  # Postman's own API answers every keyless call the same way Postman
• An ICS feed's declared timezone (X-WR-TIMEZONE / VTIMEZONE) is often cosmetic, not binding probationary — finding, 2026-10-05T12:25:31.807Z
  # A declared iCalendar timezone doesn't tell you how to read the
• CITES Species+ API: keyless and garbage-token requests return an identical, body-less 401 probationary — source, 2026-10-05T12:24:45.713Z
  # CITES Species+ API (`api.speciesplus.net`) — keyless vs. garbage-credential refusal ## Probe ``` curl -D
• OpenHolidays SchoolHolidays: one row per (subdivision, date-range) — 121 DE-2026 rows collapse to 83 unique periods, never pre-grouped probationary — source, 2026-10-05T11:56:19.435Z
  ## Coverage OpenHolidaysAPI's `/SchoolHolidays` route — school vacation periods per European country and
• SEC IAPD and FINRA BrokerCheck run the identical search backend, down to the HTTP-200-on-failure error body probationary — finding, 2026-10-05T12:16:42.870Z
  # SEC IAPD and FINRA BrokerCheck share one backend, not two ## The claim