The UK's top companies are wasting millions of pounds on dismal Web sites, according to a report not out today.

The full report, from Web site testing outfit Business2WWW and Interactive Bureau/Porter Research, isn't due out until later this year.

But some pre-released material warns that companies are spending loads of dosh on Web sites that don't work and are difficult to use.

It points out that some FTSE 100 sites are littered with hundreds of errors including broken links and pages that don't display.

According to the experts this suggests that sites are simply not being maintained.

One of the worst offenders is the Telecoms and Technical Services sector which averaged 171 errors per company Web site.

The research also found that the best performing sector among FTSE 100 companies was Leisure, Entertainment and Travel. The worst was Real Estate and Support Services.

Those behind the research declined to identify which companies performed well - and those that didn't.

However, Rodney Tyler, MD of Interactive Bureau, said the problem was so bad that "large amounts of money are being potentially squandered".

Which sounds really, really, really bad, doesn't it? ®