Web performance benchmarking firm Gomez and dotMobi, the company behind the .mobi mobile Internet domain, have joined forces to determine just how well the Web sites from the top airline, banking and search companies perform on mobile devices.

The Mobile Web Experience Benchmarks from Gomez and dotMobi test five aspects of the mobile Web experience: readiness, discoverability, speed, success and consistency. The initial results show that mobile Web sites are 30% slower than their computer-based counterparts.

Gomez will publish the results on a monthly basis.