Page Loading Speed

AMPSound · 20-09-2010 2:27pm #1

blue4ever · 20-09-2010 5:05pm

Load seems to be a factor - user experience etc.

You can check if your page is gzipped :

http://www.whatsmyip.org/http_compression/

C

AMPSound · 20-09-2010 5:08pm

Thanks very much for that handy link. It all seems to be working:

http://ampsoundsystems.com is gzipped
Original Size: 87 KB
Gzipped Size: 14.37 KB
Data Savings: 83.48%

http://ampsoundsystems.com/tag/greystones-theatre is gzipped
Original Size: 32.64 KB
Gzipped Size: 7.08 KB
Data Savings: 78.31%

So any other tips for reducing the load time?

AMPSound · 20-09-2010 5:23pm

Just thinking about those results though - 87KB seems very small for my homepage! The banner is huge, and there are loads of images in blog posts etc that should make the homepage much larger. Any thoughts on that one?

blue4ever · 20-09-2010 6:02pm

This will be short an sweet - iPhone doesn't cater for the larger fingered variety!

This is taking an age;
http://ampsoundsystems.com/site/wp-includes/js/prototype.js?ver=1.6
This is dead I think;
http://ampsoundsystems.com/site/wp-content/plugins/wpg2/css/wpg2.css
This is huge;
http://static.ak.fbcdn.net/rsrc.php/z5ZQ0/hash/6bzs6vtx.CSS
And the associated files are big too

You have about 130 items on the pahe to load - see if they are all necessary

Compress your js an CSS files (not gzip- actual - you can do it online)

C

blue4ever · 20-09-2010 6:18pm

This will be short an sweet - iPhone doesn't cater for the larger fingered variety!

This is taking an age;
http://ampsoundsystems.com/site/wp-includes/js/prototype.js?ver=1.6
This is dead I think;
http://ampsoundsystems.com/site/wp-content/plugins/wpg2/css/wpg2.css
This is huge;
http://static.ak.fbcdn.net/rsrc.php/z5ZQ0/hash/6bzs6vtx.CSS
And the associated files are big too

You have about 130 items on the page to load - see if they are all necessary

Compress your js an CSS files (not gzip- actual - you can do it online)

Your page may be 80 odd kb - but with all the 129 items a browser is loading - it's 1195kb!!!

C

AMPSound · 20-09-2010 6:28pm

Ok I just installed W3 Total Cache - and it is amazing!

I also found this great tool http://analyze.websiteoptimization.com/wso to see loading times and recommendations on what to do to speed it up.

There is a function in Total Cache called Minify which moved all my CSS and JS into the HEAD and now it only calls one CSS instead of 7 and 4 scripts instead of 19.

So I went from:

Total HTTP Requests: 136
Total Size: 907208 bytes

to

Total HTTP Requests: 115
Total Size: 572133 bytes

and got my loading time down from 32.01 seconds on T1 to 26.03.

I very much recommend W3 Total Cache for any wordpress install.

pixeldesign · 20-09-2010 8:44pm

I also recommend you guys(tested by me recently) putting all of your javascript files on a subdomain.The speed should increase a lot.

AMPSound · 20-09-2010 9:47pm

pixeldesign wrote: »

I also recommend you guys(tested by me recently) putting all of your javascript files on a subdomain.The speed should increase a lot.

Oh really? Can you explain in more detail please?

pixeldesign · 21-09-2010 8:47am

Just create a subdomain, as for example www.js.domain.com .Put all of your javascript files on the subdomain called js and test it.

PaulPinnacle · 21-09-2010 11:41pm

AMPSound wrote: »

Just thinking about those results though - 87KB seems very small for my homepage! The banner is huge, and there are loads of images in blog posts etc that should make the homepage much larger. Any thoughts on that one?

What files have you set to be compressed?

It's only listing the original and compressed size of the HTML/text file (which is all that is being compressed when the page is requested) hence the low file size mentioned of 87KB.

The total page size is 1368KB (at the moment), with a very significant portion of that being made up of the javascript files (so the area you really want to tackle).

You can easily set the .js and .css files to be compressed along with the html/text files. (It won't help reduce the image file sizes as these are already compressed, but you can make savings there by serving the correct sized images and optimizing the images for web).

mneylon · 22-09-2010 7:15am

Reducing the number of DNS lookups can have a HUGE impact.

So unless a widget from a 3rd party site is absolutely essential dump it

RedCardinal · 23-09-2010 9:42am

AMPSound wrote: »

Ok I just installed W3 Total Cache - and it is amazing!

Next step - set up a CDN with W3 and watch things improve even more. Amazon Cloudfront has it's EU DC in Dublin, so it's absolutely perfect for Irish sites.

RedCardinal · 23-09-2010 9:44am

pixeldesign wrote: »

Just create a subdomain, as for example www.js.domain.com .Put all of your javascript files on the subdomain called js and test it.

And ensure it's a cookieless domain. You could actually use multiple subs to get even more juice from this technique, but moving to CDN will give you both the parallel download improvement alongside greater speed.

mneylon · 27-09-2010 1:25pm

RedCardinal wrote: »

And ensure it's a cookieless domain. You could actually use multiple subs to get even more juice from this technique, but moving to CDN will give you both the parallel download improvement alongside greater speed.

Not necessarily
Every DNS lookup you add can slow things down.
Blindly advising people to setup CDNs is probably going to cause more issues for a lot of people than solve them

AMPSound · 27-09-2010 2:56pm

Blacknight wrote: »

Blindly advising people to setup CDNs is probably going to cause more issues for a lot of people than solve them

Ok so where do we stand with the CDN? Yay or Nay?

mneylon · 27-09-2010 3:23pm

AMPSound wrote: »

Ok so where do we stand with the CDN? Yay or Nay?

I'd be wary ..

If everything else is optimised AND you are getting a LOT of traffic then it might help ... ..

RedCardinal · 30-09-2010 10:35pm

Blacknight wrote: »

I'd be wary ..

If everything else is optimised AND you are getting a LOT of traffic then it might help ... ..

Well given that Amazon have their DC in Dublin I think Cloudfront makes a lot of sense for Irish sites. Fairly easy to set up, so I'm not sure why you think it will cause trouble for people Michele? Given this thread is about W3TC adding CDN support is trivial.

mneylon · 30-09-2010 11:44pm

RedCardinal wrote: »

Well given that Amazon have their DC in Dublin I think Cloudfront makes a lot of sense for Irish sites. Fairly easy to set up, so I'm not sure why you think it will cause trouble for people Michele? Given this thread is about W3TC adding CDN support is trivial.

Richard - it adds extra DNS lookups, which slows things down regardless of location. It also adds an extra degree of complexity that a lot of people neither need nor understand. You also cannot know if both the end user's ISP and their host is actually peering with Amazon, which would add more load time to the entire thing.

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