Google just launched the Site Performance tool, an experimental feature in Webmaster Tools that shows you information about the speed of your site and suggestions for making it faster.
It’s likely 2010 will be “the year of site speed” and this feature can become a really important information point. However, I just noticed a really weird behavior.
Look at the following screenshot.
Google Site Performance suggestions for simonecarletti.com
Enable Ggzip compression
WTF?!? All the assets are linked from Google and Google does gzip compression. Why Google is saying Google is not Gzipping?
Headers don’t lie.
Last-Modified: Mon, 08 Jun 2009 20:49:31 GMT Content-Type: application/x-javascript; charset=UTF-8 Expires: Fri, 03 Dec 2010 07:13:27 GMT Date: Thu, 03 Dec 2009 07:13:27 GMT Vary: Accept-Encoding Content-Encoding: gzip X-Content-Type-Options: nosniff X-XSS-Protection: 0 X-Frame-Options: SAMEORIGIN Cache-Control: public, max-age=31536000 Age: 4066 Content-Length: 45879 Server: GFE/2.0 200 OK
Combine external JavaScript
Hey Google, that would be great but I can’t combine these libraries. *You* should combine them since you are serving the content and considering you are motivating webmasters to use your service.
Minimize DNS Lookup
Sorry, it’s not my fault again.
Combine external CSS
Yeah, I would be happy to do so but one style is for print media and the other is for the screen. I know, I could embed the media type directly in the CSS definition, but also you could understand they are here for different purposes.
In conclusion, 3 of 4 Google suggestions depends Google itself. Has anyone here noticed a similar behavior?
Exactly, same on my blog: analytics non gzipped, script not combined, and so on… all google faults (or wrong detections of the perf tool)