This is annoying and wastes paper. Insist on the provision of meaningful document titles These are not the same as what is visible on your page. In the Institute we are totally spoilt. We have a very high speed local area network which delivers pages very, very quickly. Consider how long pages will take to download over a 56K modem connection.
Large graphics are the biggest contributor to download time.
Complex tables also take time for a browser to display. Your consultants should know a range of techniques to minimise the size of graphics. Platform and Browser version issues Your pages need to be viewable on different hardware platforms and using various browsers and browser versions. Text of a given notional size is much bigger on a PC than a Macintosh. If your consultants use Macs for development make sure that text doesn't wrap awkwardly when viewed on a PC, particularly in headings and in tables.