Set up proxy for seo panel using following steps.
a) Login as Administrator
b) Go to Admin Panel
c) Select Proxy Manager from left menu
d) Create new proxy
You can use service of our partner below for getting proxies.
e) Check Status of proxy from action box of Proxy Manager
f) Go to System Settings
g) Change Enable Proxy to Yes
This will enable proxy feature in seo panel if any proxy is active in the system.