The 5 Analytics Tools Marketing Agencies Swear By (And the One That’s Secretly Killing Your ROI)

Data in 2025 has become more than just a competitive edge; it forms the basis of all effective marketing strategies. Yet while marketers now possess more analytics tools than ever, many still operate without complete visibility into how well their strategies perform.

Discovering exactly how your audience behaves and using this knowledge to drive decisions are two keys to transforming average campaigns into ROI-shattering successes. That is where behavioral targeting in marketing comes in--along with supporting analytics tools that make this possible.

In this post, we'll go over:

• The top five analytics tools relied upon by agencies.

• How these tools utilize behavioral targeting in marketing to increase conversions.

• One popular platform that could actually be draining your budget.

• How to improve your marketing strategy.

  
  

Let's dive right in!

Why Behavioral Data Is More Valuable Than Ever

Before discussing tools, let's quickly explore behavioral targeting in marketing. Behavioral targeting takes advantage of consumer digital behavior such as page visits, email opens, and purchase history to customize messaging and offers that address actual behavior rather than generalized demographic data or guesswork. Instead of targeting demographic factors or making assumptions based on guesswork alone, we can now tailor our strategies to what truly matters.

In July 2024, Google reversed its years-long plan to eliminate third-party cookies in Chrome. As of 2025, third-party cookies remain enabled by default in Chrome, but 80% of marketers still plan to accelerate first-party data collection, knowing user-choice controls are coming and Safari/Firefox already block them by default. Building behavioral targeting on first-party data is now a strategic advantage, not just a compliance requirement.

1. Google Analytics 4 (GA4) - Agencies Love It!

GA4 has quickly become the industry standard in web analytics since replacing Universal Analytics. Its focus on events and user behavior tracking provides agencies with a core platform for behavioral targeting in marketing campaigns.

Key Features:

• (Website + apps) Activity Tracking

• Machine learning predictions of customer churn and conversions

• Funnels and path analysis tools

  
  

With GA4, agencies can create audiences based on behavioral actions (for instance, "visited three product pages but didn't convert") and use Google Ads for targeted campaigns.

Use Case Example:

GA4's behavioral audiences, for example, users who viewed three or more product pages without converting, can be pushed directly into Google Ads for RLSA campaigns. Companies using GA4 audiences in Google Ads report 30–50% improvement in ROAS versus broad targeting, based on WordStream's 2025 campaign performance analysis.

2. Hotjar - Why Agencies Love It

Hotjar offers user behavior analytics at scale with heatmaps, session recordings, and real-time feedback features—perfect for marketers aiming to observe how users engage with pages they develop or market.

Key Features:

• Click and scroll tracking capabilities

• Visualization of conversion funnels

  
  

Hotjar provides more than on-page surveys and polls; it shows users why they behave the way they do—giving marketers invaluable data for targeted behavioral advertising strategies.

Use Case Example:

A SaaS company utilized Hotjar recordings to identify users leaving its pricing page early. They adjusted its layout based on this user behavior to improve page performance and refine messaging for ads through behavioral targeting in marketing.

3. Segment by Twilio - Agencies Love It

Segment by Twilio is an agency favorite customer data platform (CDP). This technology gathers, unifies, and routes customer behavioral data directly into any tool of their choosing for analysis - providing agencies with an incredible data connection hub!

Key Features:

• Data Collection for First Party Use

• Real-Time User Profiles

  
  

Segment's behavioral event triggers allow marketers to track events like "added to cart" and "completed tutorial," then send this data directly into email tools, ad platforms, and CRM systems—making behavioral targeting across channels much simpler than before.

Use Case Example:

An online retailer using Segment to pipe product-view data into Klaviyo email flows reported improved cart recovery through behaviorally triggered sequences. Klaviyo's own 2024 benchmark data shows abandoned cart flows generate an average of $5.81 revenue per recipient, 3.5x more than standard promotional emails.

4. Mixpanel - Agencies Love It

Mixpanel was specifically created for product and growth analytics. Where traditional tools largely focused on pageviews, Mixpanel tracks actions (clicks, scrolls, and opens). Furthermore, Mixpanel creates behavioral funnels as a result.

Key Features:

• Powerful for retention and personalization

• Advanced segmentation, cohort analysis, and A/B testing integration

  
  

Mixpanel's behavioral analytics engine aids user personalization—essential features in behavioral targeting strategies for digital marketers.

Use Case Example:

Mixpanel's 2024 product analytics benchmark report found that companies using cohort-based behavioral segmentation in their retention campaigns reduce involuntary churn by an average of 15–25% within the first 90 days of implementation.

5. HubSpot Marketing Hub - Why Agencies Love It

HubSpot is an all-in-one CRM, marketing automation, and analytics solution with particular strength in behavioral workflows to personalize the user journey at scale.

Key Features:

• Smart Email Workflows

• Behavior Lists and Triggers

  
  

HubSpot allows agencies to utilize behavioral targeting across marketing lifecycle stages. For instance, someone downloading an eBook receives different nurture steps than someone requesting a demo.

Use Case Example:

A B2B agency used HubSpot to build a lead scoring model based on behavior. They offered high-value leads personalized content using behavioral targeting in marketing that cut sales cycles by 30%.

The One Tool That’s Secretly Killing Your ROI

Your Social Media Analytics Dashboard: An Instrument That Undermines Return

Let's openly address what many consider an embarrassing subject—your social media analytics dashboard.

The problem isn't that social dashboards lack data. Meta and LinkedIn both offer pixel-based conversion tracking and off-site behavioral signals. The problem is attribution: built-in dashboards use last-click or platform-native models that overcount their own contribution by an average of 30-40% compared to GA4's data-driven attribution (Meta's own MMM studies, 2024). Without cross-platform stitching through Segment or a CDP, you're optimizing on inflated numbers.

Here's why that could be harmful:

• Engaging audiences instead of trying to convert them is what matters.

• No single platform allows us to link behavior.

  
  

Attribution can become murky. Many marketers invest too heavily in channels that seem promising because they cannot see behind clicks to identify how individuals behave.

What to Do Instead:

Use tools that dig deeper into the customer journey. Integrating GA4 with Hotjar, Segment, or Mixpanel for full funnel visibility and behavioral targeting effectively in marketing strategies.

What Behavioral Targeting Delivers: Benchmarks Your Campaigns Should Hit

This page explains the tools, but it does not set any performance targets that readers can use to gauge their current performance. We should insert a new section of performance targets, just before the section on Best Practices, using the following targets:

1. Behavioral targeting can increase ad conversion rates by more than 600% using advanced data segmentation techniques.

2. Retargeted visitors are 70% more likely to convert compared to visitors who aren’t retargeted.

3. Advanced personalization techniques can deliver an average return on investment of $20 for every $1 spent.

4. Companies that use behavioral segmentation see an additional 40% in revenues generated by their personalization efforts.

5. Customer acquisition costs can fall by up to 50% using precise behavioral targeting, compared to more general targeting based on demographics.

These targets give readers a good performance benchmark to see if their current tool set is working for them or if they should make some changes.

Best Practices for Behavioral Targeting in Marketing

Collect First-Party Data

As cookies continue to decline in usage, owning your data is key for long-term success.

Use Behavioral Triggers

Automate emails, ads, or in-app messages based on user actions to save time and increase customer retention.

Refine Segments Continuously

People change, so your segments should evolve too. Take advantage of real-time tools for continuous optimization of segments.

Don't Go Overboard

Engaging in creepy or excessively personal messaging could backfire. Make your messages relevant without becoming intrusive.

Integrate Platforms

Integrating analytics tools with CRM and advertising platforms enables smooth execution.

Final Thoughts

Data-driven marketing has become the new norm. Successful agencies in 2025 don't rely on big budgets alone—instead, they use behavioral targeting through smart analytics tools for effective results. By shifting towards behavior-based strategies, you will lower costs, boost engagement, and better comprehend your audience on an intimate level.

Remember: Being aware of what someone did is great—understanding why they did it is what will propel action forward.

FAQs

1. What Is Behavioral Targeting in Marketing?

   Behavioral targeting refers to the practice of providing personalized ads or offers based on an individual user's actions, such as browsing history, purchases made, or clicks on specific webpages.

   
   

2. What Analytics Tools Support Behavioral Targeting in Marketing?

   Popular tools like GA4, Hotjar, Segment, Mixpanel, and HubSpot offer features that allow behavioral targeting through data collection and segmentation.

   
   

3. Is Behavioral Targeting Still Effective When Cookies Are Restricted?

   Yes—especially when first-party data is utilized. Segment and HubSpot offer tools that facilitate behavioral targeting within marketing without depending on third-party cookies for effectiveness.

   
   

4. How Can Small Businesses Utilize Behavioral Targeting?

   Start small! Email software such as Mailchimp or ConvertKit, equipped with behavioral automation, is an easy and efficient way for small businesses to experiment with behavioral marketing tactics that could bring significant gains in engagement and returns on investments.

5. Are third-party cookies gone in 2025, and does that affect behavioral targeting?

No. Google has now backpedaled on their 2024 plans to phase out third-party cookies in Chrome. By 2025, third-party cookies in Chrome have them enabled by default with an opt-out option for users. Meanwhile, Safari and Firefox have disabled third-party cookies for years, making up a quarter of total browser traffic. This means that third-party cookie-based behavioral targeting is still effective in Chrome but not reliably so across the whole user base.

6. What is the difference between behavioral targeting and contextual targeting?

   With behavioral targeting, the ad trail follows the consumer’s path of what pages they have visited, what products they have peeked at, and what emails they have opened. With contextual targeting, the ads are relevant to what the consumer is currently interacting with. In other words, contextual targeting does not track the consumer. However, contextual AI targeting has closed the gap significantly by 2025.

7. How does GA4 support behavioral targeting compared to Universal Analytics?

   Universal Analytics used sessions and pageviews as its basic metrics. GA4, on the other hand, focuses on events and user parameters, making it more suitable for behavioral targeting. This is because any action a user performs, whether it's scrolling down a page, a video's start time, a button click, or a start of a form, becomes an event that can help you define a behavioral audience segment. The GA4 audiences are directly applicable to Google Ads and Display & Video 360 for targeted campaigns.

8. Can behavioral targeting work without personal data or consent?

   Yes, there are two ways to go. First, contextual behavioral targeting leverages what the user is currently reading or viewing, the content signals, instead of the personal tracking information, and therefore doesn’t require consent under the GDPR. Second, the Google Privacy Sandbox Topics API provides a form of aggregated behavioral targeting through cohorts, grouping users by interest category without exposing any personal browsing history. When you collect first-party behavioral data, consent is required under the GDPR, but the data is yours to use.