The SOA refresh is outside 20 minutes to 12 hours.

SOA_REFRESH_OUT_OF_RANGE · Severity: Info

• InfoSOA_REFRESH_OUT_OF_RANGE

  The SOA refresh is outside 20 minutes to 12 hours.

  Refresh is how often secondary servers ask for a new serial. RFC 1912 section 2.2 suggests 20 minutes to 12 hours (1200 to 43200 seconds); with NOTIFY a longer value is common and harmless.

Reported by

• SOA record check
• Zone file checker

Available through the API

• SOA record check API
• Zone file checker API

Related findings

• Warning SOA_RETRY_NOT_BELOW_REFRESH The SOA retry is not shorter than the refresh.
• Warning SOA_EXPIRE_BELOW_REFRESH The SOA expire is not longer than refresh plus retry.
• Info SOA_EXPIRE_SHORT The SOA expire is shorter than two weeks.
• Info SOA_NEGATIVE_TTL_LONG The SOA minimum (negative caching TTL) is longer than three hours.
• Info SOA_NOT_FOUND The name has no SOA record, so it is not the apex of a zone.
• Info SOA_SERIAL_NOT_DATE The SOA serial is not in the YYYYMMDDnn date form.

All findings