One URL. Unique for every subscriber.

The anatomy of a personalised image URL

When you create a personalised image in Driphue, the platform generates a URL that contains your design template ID and merge tag placeholders for subscriber data.

When your ESP sends the email, it replaces the merge tags with actual subscriber data. So Sarah from London receives an image URL with her specific values, and the Driphue server renders an image customised just for her.

Why URL-based rendering works everywhere

Email clients render images by fetching them from URLs — this is how every email image works. Driphue's personalised images use the exact same mechanism, which means they work in every email client without any special compatibility requirements.

There are no plugins to install, no JavaScript to embed, no API integration needed. You paste a URL into an <img> tag in your email template, just as you would with any static image. The personalisation is handled entirely by the URL parameters.

One URL per subscriber = one unique image

Because each subscriber's merge tags resolve to different values, each subscriber gets a unique URL. This is important for two reasons. First, every person sees an image personalised with their own data. Second, email clients like Gmail cache each unique URL separately, so caching actually helps rather than causing problems.

Works with any ESP

Driphue generates the correct merge tag format automatically based on your ESP. Whether you use Klaviyo's {{ first_name }} syntax, Mailchimp's *|FNAME|* format, or any other platform's tag system, Driphue handles the translation.

For the complete merge tag reference across all supported ESPs, see our ESP integration guide. For a deeper technical dive into how personalised URLs work, read our blog post on dynamic image URL mechanics.

No code required

You never need to construct URLs manually. Import your design from Canva, add merge tag layers in Driphue's visual editor, select your ESP, and the URL is generated for you. Copy it, paste it into your email template, and you are done.