After you have created your first campaign, it is time to put the OptiMonk JavaScript code on your website — until it is there, your popups cannot show.

If your site runs on Shopify, WordPress / WooCommerce, Magento, Bigcommerce, Unas, Gomag, Shoprenter or MerchantPro, you do not need this article: pick your platform in OptiMonk and follow the guide made for it (on Shopify there is no snippet at all — the app embed replaces it).

For a custom website, here is how to get the snippet and where to put it.

Step 1 — Open the Domains tab

  1. Log in to OptiMonk, open Settings, then the Domains tab. (The same page opens from the domain switcher in the left sidebar, with Domain settings or Install snippet.)

  2. If the site is not on the list yet, click Add domain, type it in (Type a new domain, e.g. example.com) and click Add. Every domain is installed on its own, so if you have several sites, pick the row of the one you are working on.

Step 2 — Get your snippet

  1. Click the domain row to open it, then click Connection guide. (OptiMonk looks at your site first; if it recognises the platform it tells you so with We recognized your platform: … — you can still choose something else.)

  2. Under Connect your website → What e-commerce platform do you use? choose Custom website.

  3. Your unique snippet appears. Click Copy code; the button turns into Copied when it worked.

Step 3 — Paste it into your site

Paste the snippet into the <head> section of every page of your website — anywhere after the opening <head> tag and before the closing </head> tag, just like a Google Analytics tag. It loads asynchronously and won't slow your site down.

❗ You only need to include the code once per page.

❗ Before you start, make sure you have access to the administration interface of your website. If you do not, see the next section.

If you cannot edit the site yourself

At the bottom of the guide, open Do you need help? and choose Send the instructions to my developer: We'll email them the snippet and what to do with it, so whoever looks after your-domain.com can paste it without an OptiMonk login.

  1. Fill in Their name (for example Alex) and Their email address.

  2. The email they'll get shows the whole message, with the instructions and the snippet in it. Edit it if you like — this is the whole email.

  3. Click Send the instructions. You get a confirmation: Sent to alex@example.com — the snippet and the steps are on their way. From there you can Send it to someone else as well.

You can send ten of these a day. If you try again straight away, OptiMonk asks you to wait a moment (One just went out. Give it a few seconds before sending another.); after the tenth it says That's ten for today. Please try again tomorrow.

The same Do you need help? block also links to Read the installation guides — Step-by-step articles for every platform, tag manager and cache plugin.

Step 4 — Check that it is live

Once the code is on your site, click Check now at the bottom of the guide.

  • The OptiMonk code is live on your-domain.com. — you are done, and the domain row switches to Code inserted.

  • We looked at your-domain.com and could not find the OptiMonk code yet. Make sure you saved your changes and the page is publicly reachable, then check again.

  • An OptiMonk code is on your-domain.com, but it belongs to a different account. Replace it with the code above.

  • We could not reach your-domain.com to check. This is on our side — try again in a moment.

Checking loads your site once and looks for the code — it does not need visitors.