Reverse-Proxy Configuration

You'll need to reach out

In order to complete this process, you'll need Unstack support to activate proxying on your account after you'll followed the steps outlined in the checklist below. Support cannot help with the configuration process on your server or advise you, that will be entirely on your technical team.

Required subscription

In order for support to be able to activate this in your account you'll need to be on the Full+ plan.

Process overview

First, you'll need to configure a custom domain for your site, this domain should be the one you'd like proxied. Keep in mind, if you'd like to proxy a specific path of your domain, you'll need to make support aware of this as that change would need to happen in the backend. Additionally, you'll want to implement the steps outlined below. Then, once you've done those two actions, you may email support following this format to activate proxying.

Proxy setup checklist

  1. Ensure you're currently a Full+ subscriber with Unstack
  2. Set up a custom domain in your account.
  3. Configure proxying on your server.
  4. Send support a message following this format.

What is proxying?

Proxying, specific to Unstack is the ability to use the site you create in Unstack on your domain where you are already running a web application.

Details / Use Case

In some cases, companies have a hard requirement their web application be on the root domain of their website (e.g. Unstack provides options to proxy web traffic to your root domain to give you the best of both worlds. Note, this is advanced functionality and typically requires an engineer to set up.


Steps Pre-Server Implementation

    1. Your first step will be setting up your custom domain within the application in order to generate the DNS records that you'll need to add to your DNS registrar.

      Begin this process by going to the settings page within the app and selecting custom domain:

    2. Next, once the drawer opens you'll input your domain name which may follow the following format: [prefix].[root].[suffix], thus, this domain would be accepted: and, however, these would not be: or Once you've entered the domain, click "Set domain" this will generate the first DNS record.
    3. Next, if you're on a paying plan, you'll have the choice to enable SSL which we highly recommend if applicable. You can enable this by clicking "Add SSL".

    4. Contact Unstack Support and request your Site Connection be switched to Proxying
    5. Follow the steps below to configure proxying within your respective server:

Server types documented

Friendly note: If your server isn't listed, let us know.

Web Server Implementations


location /app {
# Point to internal resource
location / {
proxy_set_header Host $host;
proxy_set_header X-Proxy-Host $host;
proxy_set_header X-Proxy-Forwarded-For $remote_addr;

What these mean:

  1. Host tells the Unstack load balancer the URL your visitors are hitting on your web server. This will get overridden by the load balancer, but it’s important to pass this if you’re using an HTTP scheme, as the load balancer may otherwise return a redirect to an HTTPS scheme.
  2. X-Proxy-Host tells Unstack the URL your visitors are hitting on your web server. This helps us tie your traffic to your site.
  3. X-Proxy-Forwarded-For tells Unstack the IP address of your visitors’ browsers so that we can properly record the analytics for them.

Operating System Considerations

Depending on your operating system, there’s a chance you may also need to handle domain resolution in the proxy process.


For Ubuntu, you’ll probably need to set up a resolver in /etc/nginx/nginx.conf:

http {

You may also have to install dnsmasq as a handler for the DNS resolution.

sudo apt install dnsmasq

In other flavors of Linux, or if you’re using Docker containers, you may have to disable conflicting resolvers.


Apache requires the mod_proxy module to be installed, and the configuration looks like this:
<Location "/path-to-page">
ProxyPass https://{subdomain}
ReverseProxyPass https://{subdomain}
ProxyAddHeaders On
ProxyPreserveHost On
Another note for the reverse-proxy configuration article. We should tell people to reverse-proxy all of the following paths:
  • /sprk/pv
  • /sprk/ev
  • /sprk/fp
  • /sprk/up

If you do not include these paths: forms will not submit to Unstack and your analytics will not render. We have no way of retrieving the missing data.

Requesting activation

Security requirement

The person reaching out must be an Admin, Developer, or Site Owner user role. Otherwise, we cannot service the request.

Send us a message in the following format:

I would like for my site {site name} to have proxying activated for {domain}. I have gone ahead and configured this following your documentation. My server type is {server}.

Articles in this section

Was this article helpful?
0 out of 0 found this helpful