Find Akamai server IP
dig www.jhu.edu
### Returns...
# www.jhu.edu. 3600 IN CNAME www.jhu.edu.edgekey.net.
# www.jhu.edu.edgekey.net. 17973 IN CNAME e11207.g.akamaiedge.net.
# e11207.g.akamaiedge.net. 20 IN A 23.11.132.57
# Add -staging to the CNAM like this: www.jhu.edu.edgekey-staging.net
# to find staging server IP. Leave along to find production IP.
dig www.jhu.edu.edgekey-staging.net
### Returns...
# www.jhu.edu.edgekey-staging.net. 21600 IN CNAME e11207.g.akamaiedge-staging.net.
# e11207.g.akamaiedge-staging.net. 20 IN A 23.59.21.48
# 23.59.21.48 is the IP