Site Speed- who to trust?

Posted on 2012-08-16
Medium Priority
Last Modified: 2012-08-16
hi- I'm trying to make sure my site is optimized, an ongoing chore. But different tools give me radically different times; which should I trust?

For our home page, Google says for the month of August it's averaged a hefty 7 seconds to load. But today it's 0.9 of a second.  I haven't made any changes, so how can that be?

Next I tried Pingdom.com tools. They say 513 ms. Seems like they're more reliable, because they break every element down, it's pretty amazing.

But they only do one page at a time. I'd like to somehow use Google to spot the slow pages, then use  Pingdom to analyze the problem. But I'm not sure I can trust Google sitespeed.

Question by:mel200
1 Comment
LVL 84

Accepted Solution

Dave Baldwin earned 2000 total points
ID: 38302157
First, you can not use just one test.  Because network conditions and the number of connections to the server vary continuously, you need to record multiple tests to get some idea of the average, minimum, and maximum access times.  Second, part of the speed is determined by the distance from the test machine to your web server.  Longer distances involving more hops take longer and are also subject to network conditions at the time of the test.

I use Uptrends http://www.uptrends.com/aspx/free-html-site-page-load-check-tool.aspx because they can test from many locations around the world.  They also display a graph of the sequence and load time of the pages.

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