Show HN: Every Site Knows (everysiteknows.ferrucc.io)

17 points by 0xferruccio 7y ago ↗ HN

9 comments

[ 3.5 ms ] story [ 33.1 ms ] thread

jefflombardjr 7y ago ↗

Neat! Good work!

0xferruccio 7y ago ↗

Thanks :)

patatino 7y ago ↗

Nice, it detected spotify and dropbox for me. Didn't recognize twitter or gmail.

0xferruccio 7y ago ↗

Yeah unfortunately I can’t detect twitter anymore.. I have to come up with something new to detect logged in users for it

barbarbar 7y ago ↗

Very nice, it got everything right in Chrome. But a little confused in Brave (said I had Reddit account). But very cool app.

0xferruccio 7y ago ↗

Thanks for letting me know about the reddit bug! will download Brave to see if I can fix it

bhargav 7y ago ↗

I recommend adding a slide on how you are doing this for educating those of us who do not know. From a high level, I assume the logins are detected via cookies.

Edit: interesting! Its by checking if favicon images would be loaded.

Edit 2: Found this old thread by hoppinh through webkay https://news.ycombinator.com/item?id=11415462

anoncake 7y ago ↗

Turns out I dont have any social accounts. Interestingly, http://webkay.robinlinus.com/ detects that Im logged into Flickr although I dont even have an account there.

anotheryou 7y ago ↗

location on mobile was scarily good. how does that one work?