I have run these tests again this morning and got the following results
EDIT Just as I thought, the figures didn't show as planned and so to clarify, the first figure (ms) is the PING, the second is the download and the third is the upload. I expect you all know that anyway
Internet Speed tracker (no PING figure) 5mbps 3mbps
Speedof.me 42ms 27.3mbps 8.65mbps
Speedtest.net 19ms 27.9mbps 9.49mbps
Ookla <1ms 34.98mbpps 14.35mbps
Broadband Speed Checker 78ms 16.97mbps 7.95mbps
Do these people use different methods of checking the speeds and if so, why? Surely some must be right and some must be wrong, but which is which?
I hope that the figures shown appear in their correct layout when I click on 'Post' as sometimes when you do similar in an email they end up all over the place!