Microsoft owns four of the UK’s five most popular web destinations, according to new research from Jupiter MMXI measuring unique visitors to websites.

Of the 18.5 million Britons who went online last month, over 50% paid a visit to or, while just under half went to or the software giant’s email offering

The only non-Microsoft site in the first five was in fourth place.

The top ten sites (with unique visitor numbers and digital reach in parentheses) were:

1. (9.57m, 51.7%)
2. (9.54, 51.5%)
3. (9.1m, 49.2%)
4. (8.42m, 45.5%)
5. (7.71m, 41.7%)
6. (5.98m, 32.3%)
7. (5.82m, 31.5%)
8. (5.43m, 29.3%)
9. MSN messenger service (5.35m, 28.9%)
10. (5.03m, 27.2%)

Data sourced from: BrandRepublic (UK); Jupiter MMXI; additional content by WARC staff