Very long-term persistent cookies are 6 times more common on Windows-based websites than on Unix-based sites.

29 out of 30 websites don't support IPv6.

32.6% of .mil (US military) websites are IPv6-ready. More than on any other top level domain.

1% of all websites support SPDY.

ETags may save bandwidth. Interestingly, popular sites are less likely to use ETags than average sites.

High traffic sites tend to use cookies that expire in years or decades, whereas low traffic sites prefer shorter expiry periods.

50% of all websites now use HTTP compression, up from 40% one year ago.

IPv6 is meant to be the future of Internet communication. With a world-wide adoption rate of 2.7% we are certainly not there yet.

A new section of our surveys shows the usage of Etags on websites.

94.3% of vBulletin sites use HttpOnly cookies, compared to less than 3% of WordPress, Joomla and Drupal sites.

97.6% of all sites that use http compression use gzip, only 2.4% use deflate.

84% of the top 1000 websites use HTTP compression, compared to 45.6% of all sites.

Top 1,000 sites are more than 6 times as likely than average sites to use cookies that expire after more than 10 years.

12.4% of Korean language websites use framesets (vs. 1.2% of all sites).

Most websites use external CSS, but almost as many use inline CSS too: Usage of CSS for websites.

Usage of HTTP compression is highest in France and Poland (over 60%) and lowest in Japan (14%).

We start showing historical trends for our latest reports on the usage of social widgets and for site elements.

IIS based servers are 4 times as likely to use HttpOnly cookies than Apache based servers.

Top 1,000 sites are more than twice as likely to use persistent cookies than average sites: usage of persistent cookies broken down by ranking.

A new type of surveys covers certain optional technical properties or features of websites.