Comments on: Runtime Page Optimizer

By: Ed Robinson

Ed Robinson — Wed, 03 Dec 2008 01:55:03 +0000

Basheer: Yes, the expiration date is configurable.
Mr Speedy: Your browser should be detected correctly now.

By: Basheer

Basheer — Thu, 20 Nov 2008 07:21:34 +0000

.axd file sets up the content expiration date for a period of 1 year, Is this a default seeting or is it customizable?. pls advise.

By: Ed Robinson

Ed Robinson — Tue, 21 Oct 2008 00:51:26 +0000

If the RPO doesn’t recognize the user agent, the website is returned unoptimized.

I’m guessing this is happening here. Mr Speed: if you email me offline I can help diagnose what’s going on.

By: Steve Souders

Steve Souders — Mon, 20 Oct 2008 15:28:04 +0000

Definitely looks like RPO is off for you. Ed from RPO - can you comment? Is it the User-Agent not being recognized?

By: Mr.Speed

Mr.Speed — Mon, 20 Oct 2008 09:20:47 +0000

Hi Steve,

Here is the info. Hope it helps!
Initially my UA had some additional info added in the end (because of FirePHP), but I have disabled all plugins that change the UA, so my UA is now :
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3

But even with other UA variants, like
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3 FirePHP/0.2.b.4

The RPO should work, don’t you think?

The YSlow info I get is :
YSlow for Firebug
————————————————————————
URL:http://www.getrpo.com/
Performance
*Performance Grade: C (73)*

F 1. Make fewer HTTP requests

This page has 7 external JavaScript files.

This page has 4 external StyleSheets.

This page has 31 CSS background images.

By: Ed Robinson

Ed Robinson — Sun, 19 Oct 2008 03:54:19 +0000

I think almost every page on getrpo.com gives 92 YSlow score (A for everything except CDN). For most sites (even SharePoint) the RPO lifts YSlow by 20-40 points.

If you’re not seeing this, I’m guessing there is something up with the browser’s user agent. Email me at ed.robinson@aptimize.net and I can help.

By: Arnout

Arnout — Sat, 18 Oct 2008 11:09:51 +0000

Oh thats great. I refresh and check aggain…
And they get a 92..

Performance Grade: A (92) Expand All Collapse All
A 1. Make fewer HTTP requests
F 2. Use a CDN
Using these CDN hostnames from your preferences: media.hotels.nl
These components are not on a CDN:

* [HTTP headers] http://www.getrpo.com/rpo.axd/7/wqjqxGPF8StlqsFc-gq-NA
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:08:12 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Encoding: gzip
Content-Length: 27866
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:08:12 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: text/javascript
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/2MVVB8kFaNvhbiV9qYDNEg
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:08:12 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Encoding: gzip
Content-Length: 475
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:08:12 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: text/css
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/5iTI-AiY-gsULpMwbRdFaw
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:08:12 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Encoding: gzip
Content-Length: 12429
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:08:12 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: text/css
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/memK7aNxuZwfe8zE2XSTfQ
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:08:12 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Length: 34786
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:08:12 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: image/jpeg
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/QZLKZEKftWjsjeJV8LC0eA
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:08:13 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Length: 8317
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:08:13 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: image/gif
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/2P8KEdTvm8vKPxzvgBzgg
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:08:13 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Length: 25712
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:08:13 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: image/jpeg
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/HWC0H3TlHR2KHrQNahAtw
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:08:13 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Length: 104670
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:08:13 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: image/jpeg
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/1×1
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:08:14 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Length: 44
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:08:14 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: image/gif
Loading…

A 3. Add an Expires header
A 4. Gzip components
A 5. Put CSS at the top
A 6. Put JS at the bottom
A 7. Avoid CSS expressions
n/a 8. Make JS and CSS external
Only consider this if your property is a common user home page.
A 9. Reduce DNS lookups
A 10. Minify JS
A 11. Avoid redirects
A 12. Remove duplicate scripts
A 13. Configure ETags

Something weird is going on.. :p

By: Arnout

Arnout — Sat, 18 Oct 2008 11:07:58 +0000

Hmzz.. Im getting an 88 for the RPO site:

Performance Grade: B (88) Expand All Collapse All
A 1. Make fewer HTTP requests
F 2. Use a CDN
Using these CDN hostnames from your preferences: media.hotels.nl
These components are not on a CDN:

* [HTTP headers] http://www.getrpo.com/rpo.axd/7/wqjqxGPF8StlqsFc-gq-NA
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:06:26 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Encoding: gzip
Content-Length: 27866
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:06:26 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: text/javascript
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/2MVVB8kFaNvhbiV9qYDNEg
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:06:26 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Encoding: gzip
Content-Length: 475
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:06:26 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: text/css
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/5iTI-AiY-gsULpMwbRdFaw
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:06:27 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Encoding: gzip
Content-Length: 12429
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:06:27 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: text/css
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/memK7aNxuZwfe8zE2XSTfQ
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:06:27 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Length: 34786
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:06:27 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: image/jpeg
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/QZLKZEKftWjsjeJV8LC0eA
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:06:27 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Length: 8317
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:06:27 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: image/gif
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/2P8KEdTvm8vKPxzvgBzgg
*
ParamsHeadersPost
Response Headers
Date: Sat, 18 Oct 2008 11:06:27 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Content-Length: 25712
Cache-Control: private, max-age=31536000
Expires: Sun, 18 Oct 2009 11:06:27 GMT
Last-Modified: Tue, 01 Jan 2008 18:00:01 GMT
Content-Type: image/jpeg
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/7/HWC0H3TlHR2KHrQNahAtw
*
ParamsHeadersPost
Response Headers
Loading…
* [HTTP headers] http://www.getrpo.com/rpo.axd/1×1
*
ParamsHeadersPost
Response Headers
Loading…

C 3. Add an Expires header
These components do not have a far future Expires header:

* [HTTP headers] (no expires) http://www.getrpo.com/rpo.axd/1×1
*
ParamsHeadersPost
Response Headers
Loading…
* [HTTP headers] (no expires) http://www.getrpo.com/rpo.axd/7/HWC0H3TlHR2KHrQNahAtw
*
ParamsHeadersPost
Response Headers
Loading…

A 4. Gzip components
A 5. Put CSS at the top
A 6. Put JS at the bottom
A 7. Avoid CSS expressions
n/a 8. Make JS and CSS external
Only consider this if your property is a common user home page.
A 9. Reduce DNS lookups
A 10. Minify JS
A 11. Avoid redirects
A 12. Remove duplicate scripts
A 13. Configure ETags

Also, using FF3

By: Steve Souders

Steve Souders — Fri, 17 Oct 2008 18:09:27 +0000

@sofia: Thanks for the pointer to smartoptimizer. I’ll mention it in the 2nd edition of my book.

@Mr. Speed: (love the name) I also get a 92 in YSlow. Every rule is an “A” except rule 2 (”F”). Reply with your rule scores, and we can figure this out.

By: Mr.Speed

Mr.Speed — Fri, 17 Oct 2008 14:42:59 +0000

Well, YSlow is not available for all browsers, so it is easy to guess the browser I’m using.

And no, I’m not using any UA switcher.
I’m using FF3 (v3.0.3).

And actually your score is 72 and the number of files served are the ones indicated in a previous post.

Maybe you should check this out.
With the querystring it did worked ok!