defaultTtl

Specifies the default TTL for cached content served by this origin for responses that do not have an existing valid TTL (max-age or s-max-age). Defaults to 3600s (1 hour).

• The TTL must be >= 0 and <= 31,536,000 seconds (1 year)

• Setting a TTL of "0" means "always revalidate" (equivalent to must-revalidate)

• The value of defaultTTL cannot be set to a value greater than that of maxTTL.

• Fractions of a second are not allowed.

• When the cacheMode is set to FORCE_CACHE_ALL, the defaultTTL will overwrite the TTL set in all responses. Note that infrequently accessed objects may be evicted from the cache before the defined TTL. Objects that expire will be revalidated with the origin. When the cache mode is set to "USE_ORIGIN_HEADERS" or "BYPASS_CACHE", you must omit this field. A duration in seconds terminated by 's'. Example: "3s".