Create a simple real-time search traffic panel for a website

I want to create a simple real-time search-traffic panel on a website, like this mockup: [login to view URL] All the info needed to populate that will come from the user's landing URL, which will always be to the main page of the site [login to view URL] Means site will be a single-page site, just a landing page, no subfolders. The user's landing URL (generated from adwords) will be something like: [login to view URL] as well as paramaters for device, location, etc. So each time a user from paid search lands on [login to view URL] (means will have this format of pURL) I want the admin panel on /admin to update in real time. - Shows all the info pulled from the URL - Starts the 20s timer countdown - plays an audio notification Info from each new user on site just replaces the info from the user before (post, replace, post, replace...) If a new user comes and the countdown is still running that's fine, info from the new user still replaces the info from the old user (later I will build out an archive function, or show the last 5 users, etc.) This panel is only for paid search, not worried about other website traffic. Looking to get this up quite fast, will build out the idea more once I see it working. Can be php or node.js or whatever is needed, open to your suggestion. Thanks for bidding!