generated: '2026-08-13'
method: searched
source: https://intl.rrd.com/Help
limit_count: 0
rate_limits: []
headers: []
note: >-
  No rate limits are published. RRD's only named API surface — the "RR Donnelley
  API" help page at https://intl.rrd.com/Help, which states that customer-facing
  APIs require a Username and APIKey in the request header — is not reachable
  anonymously: intl.rrd.com resolves (40.70.68.247) but refuses TCP 443 from two
  independent networks. api.rrd.com resolves (162.27.32.131) with 443 and 80
  closed/filtered. connectone.rrd.com answers 401 on every path. There is
  therefore no anonymously readable document stating a quota, window, burst,
  429 behaviour, or any RateLimit-*/Retry-After response header, and no live
  unauthenticated response to observe them on. An honest zero, not an unchecked
  field.
evidence:
  - url: https://intl.rrd.com/Help
    status: 0
    detail: connection refused on TCP 443
  - url: https://api.rrd.com/
    status: 0
    detail: TCP 443 and 80 closed/filtered
  - url: https://connectone.rrd.com/
    status: 401