How VIP Holiday Booker Decreased Spam Leads by 76% and Boosted Valid Conversions by 30.5%

Brand

Verticals

Travel & Hospitality

Geography

Croatia

Google Ads Product

Search Ads

About VIP Holiday Booker

VIP Holiday Booker is a premier luxury villa rental agency based in Split, Croatia, specializing in high-end coastal and island accommodations. Founded in 2013, the company has scaled its portfolio to over 1,000 premium properties.

To complement these elite rentals, they provide 24/7 personalized concierge services, ensuring a seamless, authentic, and five-star vacation experience for high-net-worth travelers.

Challenge

To sustain this growth, the brand heavily relies on Google Search Ads to capture high-intent international travelers looking for premium Croatian villas.

While the paid search campaigns were successful at generating a high volume of inquiries, the company hit a major roadblock with lead quality. A staggering 12.20% of all incoming leads from paid ads were fraudulent or spam.

This created a significant disconnect between marketing metrics and actual business value. While Google Ads reported stellar performance, the reality on the ground was a sales team wasting valuable hours filtering through junk data. The core issue wasn’t a lack of traffic, but rather a distorted feedback loop. Because the Smart Bidding algorithm treated every form submission as a success, it continuously optimized for and spent budget on the exact user signals and placements that generated spam.

Key Objectives:

Drastically lower the spam inquiry ratio.
Retrain Google’s AI to focus strictly on high-value, legitimate leads.
Improve overall conversion volume without increasing the cost per acquisition (CPA).

High conversion metrics vs. low booking volume

Prioritizing inquiry quantity over lead quality

Stagnant sales efficiency due to 12.20% spam

Strategy

The Approach

To bridge the gap between spam inquiries and actual revenue, VIP Holiday Booker—with the strategic guidance of Coob Ads—shifted from a quantity-first approach to a value-first data strategy. Instead of letting Google optimize blindly for every form submission, the company’s CRM data was connected directly with the ad platform. By feeding clean offline data back into the system, the Smart Bidding algorithm received the exact signals it needed to differentiate genuine luxury travelers from fraudulent bots.

Implementing Offline Conversion Tracking (OCT): A strategy built around assigning a unique Lead ID to all ad traffic, successfully bridging the gap between offline CRM activity and online ad clicks to track true lead quality.
Creating a Negative Feedback Loop: The infrastructure was set up to automatically send data back to Google Ads whenever the sales team flagged a lead as spam, explicitly retracting the fraudulent conversion.
Higher-quality signals for Google Ads algorithms: By removing spam conversions from the system, the campaigns began sending clearer data about relevant audiences and placements, helping redirect the budget toward users with greater potential to submit genuine inquiries.
Retraining Smart Bidding for High-Value Intent: Fueling the AI exclusively with verified data allowed Google’s machine learning to accurately optimize for the behavioral patterns of real luxury renters.

Tools & Technologies

Offline Conversion Tracking

Success

The Results

From January to February 2026, compared with November to December 2025, by fixing the data loop and aligning internal CRM data with the ad platform, VIP Holiday Booker successfully unlocked the full potential of Google’s Smart Bidding algorithm.

The automated systems stopped chasing fraudulent metrics and instead channeled the budget toward genuine, high-intent luxury travelers. This strategic shift not only cleaned up the sales pipeline but also significantly improved the efficiency of the entire sales operations.

-76.2%

decrease in spam leads (from 12.2% to 2.9%)

+30.5%

increase in legitimate conversions

"Before implementing offline conversion import, spam leads accounted for 12.20% of all conversions, including a portion of inquiries from Google Ads campaigns. The team at Coob Ads helped us connect qualified leads with actual campaign results, providing support via email, Google Meet calls, and in-person meetings. Following the implementation, the share of spam dropped to 2.93%, while conversions increased by 30.5%. We now have a much clearer insight into lead quality and campaign effectiveness, allowing us to invest smarter and ultimately achieve a better ROI."

VIP Holiday Booker