Google spider does archive dynamic urls

[Areku]

What's the difference?

I can see dyanmic URLs on google when I search for thread titles at google...

What does that mean? Google does not spider them but somehow URLs get added there?

Why "spider hacks" then?

[NTLDR]

Google doesn't spider URLs with sessionhashes in them.

[Erwin]

NTLDR is correct. In vB3 for example, sessionhash is automatically disabled for the Google spider as default.