groups.facebook.com

updated:
blocklistlinkstatusdescription
green
bl.deadbeef.com        
in.dnsbl.org        
ex.dnsbl.org        
rddn.dnsbl.net.au        
jwrh.dnsbl.net.au        
dnsrbl.swinog.ch  link      
dyndns.rbl.jp        
Check that your domain name or IP number is not listed in any rbl / dnsbl and protect against false spam listings.

Google Safe Browsing
Norton Safe Web
AVG ThreatLabs
Web of Trust

more information about groups.facebook.com dns delegation
What IP addresses does groups.facebook.com use? Groups.facebook.com uses the three IP addresses 66.220.156.2 , 69.171.230.5 and 173.252.74.22 which also m.messenger.com use. Which mail servers does gr... www.robtex.comwww.robtex.com:groups.facebook.com

related links by robtex:
examples: 112.104.174.81 78.183.9.77 78.165.124.164 116.53.29.17 79.204.189.16 50.62.160.16 qooxy.com 119.14.95.14 27.150.91.58 176.239.191.196 122.161.140.195 owl.virtua.com.br 203.144.138.31 204.210.241.107 85.107.205.25 85.110.39.188 83.6.107.162 78.173.8.115 97.244.3.153 85.107.172.120
rblsmke2 rblsmka8a