How accurate are they?

I’ve recently added a couple stat counters to my sidebar.

But over the past week, I’m cynical about how accurate they are. They all give me different numbers.

Sitemeter:

VISITS
Total 75
Average Per Day 32
Average Visit Length 1:11
Last Hour 3
Today 10
This Week 65
PAGE VIEWS
Total 120
Average Per Day 53
Average Per Visit 1.6
Last Hour 3
Today 14
This Week 106

But look at this:

Blogflux:

Unique Visitors Page Views
Today: 7 Today: 13
Last 7 Days: 200 Last 7 Days: 339
This Month: 207 This Month: 352
Total: 207 Total: 352

.

Now the reason the total is larger for Blogflux is that I set it up a few days earlier. But overall, it tells me that I’m getting fewer hits than Sitemeter says.

Both of which are less than my WordPress Stats:

Blog Stats

Total Views: 22,366

Best Day Ever: 271 — Thursday, April 10, 2008

Views today: 74

Totals

Posts: 329

Comments: 1,186

Categories: 44

Tags: 21

Now, I’m sure there’s a good reason for the difference and it probably has something to do with IP addresses, but I don’t know enough about computers, networks and the Internet to figure it out.

Thoughts anyone?