Baseline Widely available
The HTTP Last-Modified response header contains a date and time when the origin server believes the resource was last modified. It is used as a validator in conditional requests (If-Modified-Since or If-Unmodified-Since) to determine if a requested resource is the same as one already stored by the client. It is less accurate than an ETag for determining file contents, but can be used as a fallback mechanism if ETags are unavailable.
Last-Modified is also used by crawlers to adjust crawl frequency, by browsers in heuristic caching, and by content management systems (CMS) to display the time the content was last modified.
Last-Modified: <day-name>, <day> <month> <year> <hour>:<minute>:<second> GMT
<day-name>
One of "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", or "Sun" (case-sensitive).
<day>
2 digit day number, e.g., "04" or "23".
<month>
One of "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" (case-sensitive).
<year>
4 digit year number, e.g., "1990" or "2016".
<hour>
2 digit hour number, e.g., "09" or "23".
<minute>
2 digit minute number, e.g., "04" or "59".
<second>
2 digit second number, e.g., "04" or "59".
Greenwich Mean Time. HTTP dates are always expressed in GMT, never in local time.
Last-Modified: Wed, 21 Oct 2015 07:28:00 GMT
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4