To measure the effectiveness of your referral program and better understand how your subscribers are sharing your newsletter with their friends, it’s important to track where each subscriber is coming from.

Handily, SparkLoop automatically does that for you.

Even so, there’s often a certain segment of traffic that falls under the “Unknown category.”

To minimize the amount of traffic that falls within the “Unknown” category, you can add special query parameters to your links.

With SparkLoop, you can use standard UTM parameters.

For instance, if running a Facebook Ads campaign and want to track how many people are signing up to your newsletter from that campaign, you can simply append the utm_source parameter to your link:

http://mylandingpage.com?utm_source=facebook-ads

When a person clicks on that link, "facebook-ads" will be listed as a source in your SparkLoop dashboard.

ref, source and utm_source query parameters are all valid and supported.

Examples of links with the different query parameters that are supported by SparkLoop include:

​http://mylandingpage.com?utm_source=facebook-ads
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​http://mylandingpage.com?source=facebook-ads
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​http://mylandingpage.com?ref=facebook-ads

SparkLoop supports the utm_campaign parameter, too, so you can also use that in your links.

For instance,

http://mylandingpage.com?utm_source=facebook-ads&utm_campaign=paid

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