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Start free trial →A campaign URL is a standard website URL with UTM (Urchin Tracking Module) parameters appended to it, used to track the origin and context of traffic in analytics platforms. When a visitor arrives via a campaign URL, Google Analytics (or any UTM-aware analytics tool) reads the parameters and records exactly which campaign, channel, and source sent that visit. The five standard UTM parameters are: utm_source (e.g., google, instagram), utm_medium (e.g., cpc, email), utm_campaign (e.g., diwali-sale-2024), utm_term (for paid search keywords), and utm_content (for differentiating creative variations).
A campaign URL follows this structure:
https://yourstore.com/products/vitamin-c-serum?utm_source=instagram&utm_medium=paid-social&utm_campaign=vc-serum-launch&utm_content=reel-v1
Google provides a free Campaign URL Builder tool to generate these links without manual construction. For WhatsApp broadcasts, email newsletters, and influencer links, every link should have its own unique campaign URL so attribution is precise.
Without campaign URLs, a significant share of your paid and email traffic will appear as "direct" in your analytics, making channel attribution meaningless. For D2C brands running simultaneous campaigns across Instagram, Google, WhatsApp, and email, accurate campaign URL tracking is the difference between knowing which ₹50,000 campaign drove the most revenue and guessing. Campaign URLs allow you to compare conversion rates, average order values, and revenue per visitor by campaign — directly informing where to scale and where to cut. For Indian brands with high WhatsApp marketing investment, campaign URLs are particularly critical because WhatsApp does not pass referrer headers, meaning all untagged WhatsApp clicks show as direct traffic.
Boat's performance marketing team tags every ad creative with unique campaign URLs including utm_content values that identify the specific creative (product-shot-v1, lifestyle-v2, review-overlay-v3). This allows them to see, in GA4, which ad creative drives not just clicks but completed purchases. When they ran a Diwali campaign, the creative featuring an unboxing experience (review-overlay) had a 40% higher post-click conversion rate than the product-shot variant — a finding that directly influenced creative strategy for subsequent campaigns, all traced back to systematic campaign URL tracking.
Campaign URLs can serve a dual function in A/B testing: use utm_content to identify which ad creative a visitor came from, then compare on-site conversion rates by creative in your analytics. When combined with on-site experimentation tools, you can show different page variants to visitors from different campaigns — a particularly powerful personalisation use case.
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