A TTL is larger than DNS allows.

ZONE_TTL_OUT_OF_RANGE · Severity: Error

• ErrorZONE_TTL_OUT_OF_RANGE

  A TTL is larger than DNS allows.

  A TTL is at most 2147483647 seconds (RFC 2181 section 8). Larger values are treated as zero by resolvers, so the record is not cached at all.

  Recommendation: Use a TTL of at most one week, for example 3600.

Reported by

• Zone file checker

Available through the API

• Zone file checker API

Related findings

• Warning ZONE_TTL_MISMATCH Records of one name and type have different TTLs.
• Info ZONE_TTL_UNUSUAL A TTL is below one minute or above one week.
• Warning ZONE_TARGET_IS_CNAME An NS, MX or SRV record points to a name that is a CNAME.
• Warning ZONE_TARGET_NO_ADDRESS An NS, MX or SRV target inside the zone has no address record.
• Error ZONE_CNAME_AT_APEX The zone apex has a CNAME record.
• Error ZONE_CNAME_WITH_OTHER_DATA A name has a CNAME and other records at the same time.

All findings