IIRC Google safe browsing should be using its own DNS. Nevertheless, my experience with Google's DNS is that it takes at least 2 hours before DNS records would update. If anyone knows more feel free to shed any light on Google's DNS and Google SafeBrowsing. On Tue, Jun 26, 2012 at 11:51 PM, Matthew Black <Matthew.Black@csulb.edu>wrote:

Yes, isn’t it! What DNS server does Google Safe Browsing use?****

** **

matthew black****

information technology services****

california state university, long beach****

** **

** **

** **

*From:* Ishmael Rufus [mailto:sakamura@gmail.com] *Sent:* Tuesday, June 26, 2012 9:45 PM *To:* Matthew Black *Cc:* nanog@nanog.org *Subject:* Re: [MailServer Notification]Web Reputation Notification****

** **

Access the site via domain name: SaferBrowsing message****

Access the site via IP: works fine.****

** **

Interesting...****

On Tue, Jun 26, 2012 at 11:36 PM, Administrator < administrator@do.not.reply> wrote:****

www.couchtarts.com has been detected as suspicious URLs,and Tag and deliver has been taken on 6/26/2012 10:36:04 PM. Message details: Server: MAIL Sender: Matthew.Black@csulb.edu; Recipient: sakamura@gmail.com;nanog@nanog.org; Subject: Suspicious URL: RE: DNS poisoning at Google?****

** **