Transfering domains, will spiders know where to look.

[justraquel]

I'm extremely frustrated with my hosting company. If I change hosting companies, will the spiders still be able to find me or should I expect a significant decrease in hits/users when I transfer?

[Symbios]

Do it like this;

First of all set up a new hosting account.
Then transfer all of you content up to the new host using the IP address.

Test it.

Change the domain nameservers to point to the new host.

Leave the old host/content in place for a couple of months.

In addition maybe set up some 301 redirects

[layer8]

If you are gonna repoint to the new ISP then you will not need 301 as your nearest DNS will reroute.

Simply add an entry in the robots.txt to stop all crawls once you have moved to the new server.