3 ms·
How do you get more than 86,400 unique “identifiers” when they only change every second?
by jagged-chisel 4y ago
How do you get more than 86,400 unique “identifiers” when they only change every second?
- toast0 4y agowho says Last-Modified has to be a current date? you've got the potential for 1669827111 users as of when I was composing this comment without giving your users future dates.
- koliber 4y agoThere are also many timezones and you can encode information in the timezone indicator as well. Also, you can use different days. You can stretch this number into millions. For a website that gets a certain number of unique visitors per year, this may be unique enough.
- tedunangst 4y agoSubdomains. (Not sure why I immediately thought subdomains and not just multiple resources.)
- WirelessGigabit 4y agoYou don't have to. A unique visitor is someone who comes in without a last-modified header. Set the header, that person is no longer unique.
- marshray 4y agoA malicious site can put a different identifier on every resource loaded by the browser. There really is no bottom, is there.