I Love Browser Sniffing

When I finished the new homepage for Zootool there was a big, fat screenshot of Zootool in Safari on there and the first few hours sign-ups went down and almost 90% of new sign-ups were with Safari. So I decided to build in a browser sniffer to show browser-specific screenshots for each visitor to make them feel at home. It worked a charm. Sign-ups went up on all browsers again and even increased by about 10%.