“Yes, I did it. For a year, I operated OpenSourceParking.org and
all of its parked sites on Lighttpd, and spoofed the server-name
header to Apache in order to give Apache the credit in the Netcraft
report. At that time, Lighttpd would have been scored by Netcraft
as ‘other,’ which wasn’t useful. The server-name header also
contained the phrase ‘; Hello Netcraft!’, pointing out what I’d
done. Lighttpd and Apache are both Open Source web servers.“Netcraft finally noticed a year later, when they implemented
web server detection that relied on fine details of the headers,
including their order and contents, rather than the server-name
string…”