Spidering IP Addresses in order

Does Google? (and other questions.)

[Clark]

There's been talk in the past about Google indexing all domains, be they linked to by anyone else or not. This is in the same vein.

1. Does Google go through all IP Addresses, pretty much in order, to find new content that has no links from anywhere but is open to the web?

2. If not (or even if so) should it?

3. I'm not sure how many pages that would be, but I'm sure a techie can figure it out pretty quickly and let us know ;)

4. P.S. If google finds a domain, be it an IP or just a straight domain name, should it be given a "minimum" homepage PR just for having its own domain name even if there are absolutely zero sites linking to it?

[Dolemite]

1. No

2. No

3. 256⁴ = 2³² = 4,294,967,296 IPv4 IPs

4. No

[mcavic]

No, pages shouldn't indexed unless they're submitted or have at least one link to them. Lots of pages are open to the net, but don't want to be indexed.

Plus, one IP can host many domains.