I have noticed that sites with Youtube videos call a file from ytimg that seems to take a long while to load meaning in Firefox the user sees the following transferring data from xx.ytimg dot com ( the domain name does not inspire confidence ) ,
On checking it is just an additional image Youtube loads but I do wonder if the ordinary visitor seeing this might think it's some sort of spyware or even worse and be put off staying on the page .
The first time I saw it was on a site I did not know much about and left the site pretty pronto ( my philosophy better safe than sorry ) .
Unsure if it displays the same thing for adsense video adds
Any thoughts on possible user concerns or are ordinary users still pretty blind to this sort of stuff