web pages are slow to load

Had an issue where web pages were slow to load.
Couldn't see any issues on the network.
Had to look on the client to see the issue present itself.
We could see source and destination server were communicating in good time but the web page was taking a long time to display.

I compared our site load time with https://tools.pingdom.com/ (or any external connection)
In chrome go into developer tools and look on the network tab for the load time

I found the site was trying to load google analytics waiting 20 seconds sometimes.

I needed to allow the following URLs on port 443 to fix the issue
ssl.google-analytics.com
www.google.com
www.google-analytics.com

ping response meanings from cisco devices

!	Each exclamation point indicates receipt of a reply.
.	Each period indicates the network server timed out while waiting for a reply.
U	A destination unreachable error PDU was received.
Q	Source quench (destination too busy).
M	Could not fragment.
?	Unknown packet type.
&	Packet lifetime exceeded.