Jonas Sicking wrote: > It would be really interesting to get some hard numbers on this. Just > looking at the current logs will not really say anything since very few > people browse with a mozilla with this pref turned on. So we need to come up > with some way to approximate the number of 404s per (for example) month in > the event of a browser with, say, 30% marketshare using the current > configuration.
Last I heard, the industry averages were supposed to be something like 3:1 pageviews-to-users ratio and 50% repeat visitors. So the number of favicon 404s would be approximately 1/6 of the total number of pageviews. However, that's only an average and the effect on the number of requests and bandwidth consumed would vary wildly depending on the individual site. Every site without a favicon would suffer--it's just a question of degree. Good thing no browser I'm aware of has an equivalent policy for CSS (which would benefit me at the expense of people without external CSS), JS (which would benefit people using external JS files at the expense of everyone else), etc.
