The organisation I work for uses a custom CMS from a company but the contract is up for renewal this year and we have generally been pretty unhappy with them so are looking at different avenues going forward. Our website is 1200+ pages (and slowly growing) and all of these essential. I've read that it is possible to convert CMSs to one another (as opensource CMSs all seem to have this facility) but is it possible to do this with a more bespoke CMS and such a large site? Anybody have any experience in these matters?
If you view the HTML source sometimes it can give away the CMS in the code. E.g. Wordpress will always reference wp-themes somewhere.
Ahh, I understand what you mean now - I have actually checked to find out myself before. The contracter is a development company and actually made the CMS theirselves as far as I know.