Chatting Across Subdomains
Do you have multiple subdomains on your website? For example, you might have payments.fancyflowervases.com and www.fancyflowervases.com.
If you want Olark conversations to continue across all of your subdomains, go to the Setup page and tell us your main domain:
Now visitors will be able to continue their chats when they go from one subdomain to another. Cool!
If you are using subdomains on multiple sites, you can enter all of them by using a comma to separate multiple sites.