.aspx and SEO

[hp11]

With all else being equal, does the .aspx extension (on every page except the home page) cause any type of problems when it comes to SEO (when compared to a site using only the .html extension on the entire site)?
Thanks.

[inbound]

The .aspx extension is not the issue, it's the output that the application creates.

The latest .Net release is much better than previos ones, but it's still too easy to get into a situation where you have nice looking sites with features that perform well but tank in search engines.

Remember that the extension can be changed to anything on many systems and you can see the following already:

htm
html
asp
aspx
php
php3
php4
shtml
cfm
do
pl
...

I would concentrate on making toyr code accessible if you don't have any other benchmark. Accessible code is always easy for search engines to read.