How to sped up my wordpress site.

You need to simply switch hosts.

I had the same problem - it was something to do with MySQL resources being over a certain limit. I just found a different host that had more power in that area.

E-mail your host and ask them if that's the problem, I'm sure it will be.

Ensure you have W3 Total Cache set up correctly and double check the pages are actually cached.

Also bear in mind if you have it set so that logged in users do not see cached pages then it will be slow for you.

It could well be that your host is not doing a good job. A decent host should be able to consult you on site speed up to a point, even on shared hosting.

Maybe it's the plugin causing the problem and not the hosting? I use Hostgator and it works great with all my WP blogs and I'm no techie either.

Have you tested the site speed other than your own computer? Maybe you have slow internet connection or a really old/slow computer.

Also, do you use a lot of plugins on the site? If so, which ones?
Do you have a lot of scripts running or ad stuff from 3rd party sites that are trying to load?

How much traffic are you getting to the site?

The more info you provide, the better we can help.

Have you tried cleaning up your database? Removing old revisions of post, traces of deleted posts, things like that. I had a blog running rather slow a few days ago and with cleaning out the database it improved a lot.

These are things to look at too, too many plugins or scripts can slow you down too, remove plugins you don't really need or that you can replace with code on your site.

Leslie

Maybe its your internet speed is slow and not the site. Have you checked your site speed using a free tool. Google it and test first. It could also be to many plugins or images. Are you using a free theme? it could be poorly coded. I doubt its your host as they all use the same servers. Maybe you have gone over your bandwidth allocation or have to many databases. I'd ask your host

be careful with w3total cache...if you ain't set it up correctly...it will slow you down...

also as was said...you need to check it as a non logged in user.

In the final analysis...a shared hosting solution is probably gonna be slow at some point. I would suggest:

1) verify that your caching solution is set up correctly...If that don't work

2) delete all the extra stuff...if you don't use a plugin..delete it. You probably need to clean up your plugins...get it down to only the essentials

2) If that don't work you might try a CDN like maxcdn.


but on a shared hosting solution you got the luck of the draw...depends on who else got put on your box...

I am using the following plugins:
Akismet
All in One SEO Pack
Disable WordPress Theme Updates
Fast Secure Contact Form
Gold Cart for WP e-Commerce
Google Analytics for WordPress
IM Online
news announcement scroll
SI CAPTCHA Anti-Spam
Stealth Login
Visitor Maps and Who's Online
WP E-Commerce Dashboard
WP e-Commerce Plugin
WP PHP widget

Besides this wordpress commerce blog, i have another 8 wp blogs, 4 vbulletin forums, a torrent tracker, but those doesn't have that much traffc, i would say 50-60 visits per day for each, and a google page rank check script, that loads quick. Also, regarding all the blogs and vbuleetin forums, they work fast, i don't have any problems with them. The only problem is with this shop.
Now, regarding

Feu of my sites you can see them on my signature, including the shop: Adwords Coupons. I have made a test speed with iweb tool and the average loading time is 3 secs.

Regarding my internet: I have a DSL 100mbps, and my computer is a quad core of 2.33 with 4 gb ram, so i don't think it will be a problem.

Just switch your host to a good one.Other wise you will keep facing this problem in future as well.
I have also faced such problem before, we must always go for good host not the cheaper one.Because quality does matter.

Hostgator and other similar hosts are notoriously slow because they are sharing the same server with other sites and accounts. So you might only have 1 site, but someone else could have 30 on the same server.

I have done the following: removed google analytics plugin and added w3 total cache, just like Richard said and now, the speed of the website had changed significatly, i can't believe my eyes. The New website speed is between 0.3 secs to max 1 sec, it loads almost instantly. Thank YOU Richard and all of you.