It establishes the maximum quantity of time a resource served from cache layer is considered as valid.
The value provided need to be at least 1 minute and not higher than 31 days, being supported the following formats:
- as number in milliseconds (e.g.,
- as humanized representation of the number (e.g.,
The following humanized number variations are supported:
https://microlink.io&ttl=1d // 86400000 https://microlink.io&ttl=1day // 86400000 https://microlink.io&ttl=1days // 86400000 https://microlink.io&ttl=1h // 3600000 https://microlink.io&ttl=1hour // 3600000 https://microlink.io&ttl=1hours // 3600000
Additionally, we provide
https://microlink.io&ttl=min // equivalent to `1m` https://microlink.io&ttl=max // equivalent to `31d`
The purpose of this API parameter is to adapt our caching layer based on your necessities:
- If you are targetting an URL that changes very often and response time is not critical for you, a small value will work better.
- If you are targetting an URL that doesn't change too much or you want to maximize cache hits, getting faster response time, a higher value works better.
The value provided will reflected as
x-cache-ttlas part of the response headers
curl -I -s -X GET https://microlink.io?url=https://www.twitter.com/microlinkhq | grep -i "x-cache-ttl"