We are using Sharepoint for the search engine for our internal sites.
To get the last modified date, what does Sharepoint rely on? Is it the 'last-modified' header?
One of the sites has primarily static content, html, .doc, .ppt, .pdf etc. The search results show the last modified date for non-html pages (the ones we noticed were ppt, doc, xls, pdf).
For html/text pages, in 'some' cases we are seeing the date. However, for majority of the pages we are not seeing the date in the search results.
For the html/text pages which are showing a date, when I see the page through the browser, I see that there is a 'If-Modified-Since' request header. And, it is this date that's showing in the search results. There is not 'last-modified' header though. This is a bit confusing, perhaps partly due to my lack of proper understanding of 'If-Modified-Since' header?
Thanks for the help, Kris