> Is it possible to test speed of an internet connection 
with 
> HTTrack? (Is it possible to know the difference between 
the 
> beginning and the end of a download?).

This information is normally available at the end of the 
hts-log.txt file, such as in:

HTTrack mirror complete in 7 minutes 4 seconds : 189 links 
scanned, 187 files written (10259733 bytes overall) 
[10314276 bytes received at 24326 bytes/sec], 23.8 requests 
per connection

(1 errors, 0 warnings, 0 messages)