1. A computer implemented method for responding to hypertext requests, the computer implemented method comprising: a server receiving a hypertext request from a client; responsive to receiving the hypertext request from the client, looking up a hypertext document, wherein looking up comprises obtaining a first HyperText Markup Language (HTML) element and a second HTML element and combining the first HTML element and second HTML element into a hypertext document; parsing the hypertext document for timeliness tags; generating at least one header tag based on the timeliness tags; determining if at least one expired tag is among the timeliness tags; and responsive to a determination that at least one expired tag is among the timeliness tags, looking up a timeliness tag rule corresponding to an at least one expired tag.