CDN can help in more than just improving site-speed for SEO. It can aid in better targeting, mobile friendliness, domain authority and more. Read about where CDNs are of use for your SEO efforts.
Google is very nuanced in the way it handles the Site speed. It appears to rely on some combination of TTFB coupled with rendering metric like Time to first paint / start render or DomInteractive. However, it is very hard to find the exact metric. So focus on delivering the best performance to user and Google will automatically rank you well!
Every year, in the month of December, calendar.perfplanet.com invites the experts from Web Performance to contribute their ideas as one blog post a day. It has some very insightful articles and hints at the upcoming technologies.
In this second part of the blog series, I look at the distribution on the usage of the <meta> tags across the Alexa top 1000 website.