There is no Last-Modified header for SSI files by default. Here's the documentation from the Apache site:
--------------------------------------------------- http://httpd.apache.org/docs/2.0/howto/ssi.html In its default configuration, Apache does not send the last modified date or content length HTTP headers on SSI pages, because these values are difficult to calculate for dynamic content. This can prevent your document from being cached, and result in slower perceived client performance. There are two ways to solve this: Use the XBitHack Full configuration. This tells Apache to determine the last modified date by looking only at the date of the originally requested file, ignoring the modification date of any included files. Use the directives provided by mod_expires to set an explicit expiration time on your files, thereby letting browsers and proxies know that it is acceptable to cache them. --------------------------------------------------- We could switch on XBitHack Full for the nongnu.org webspace. What do you think? Thanks, Ward. -- Ward Vandewege <w...@fsf.org> Free Software Foundation - Senior System Administrator
