AI Max Traffic in Google Ads: How to See Which Clicks (and Leads) Come From AI Max

You switched on AI Max for your Search campaigns. Clicks went up. Calls and form fills went up a little too. But when the owner or the clinic director asks, "Which of these leads came from AI Max, and are they any good?", the honest answer has usually been: "We can't tell for sure."

That's an uncomfortable conversation when real money is on the line.

This week, Google Ads made it easier to answer. A new tracking parameter, {search_term_matchtype}, now marks clicks that came from AI Max expansion. Google also started piloting a Customer Journey Insights card on the Overview page. This guide explains what changed, how to set it up and how to judge AI Max on lead quality, not just clicks.

Quick answer: Add {search_term_matchtype} to your Google Ads tracking template alongside {matchtype}. A value of "a" means the search term was matched by AI Max (broad expansion or keywordless). If {matchtype} is e, p or b but {search_term_matchtype} is "a", the click came from AI Max expanding one of your keywords. Pass these values into your analytics and CRM, then compare lead quality and cost per qualified lead for AI Max traffic versus your standard keyword traffic.

What is AI Max, in one paragraph?

AI Max for Search isn't a new campaign type. According to Google's AI Max help page, it's an optimisation layer you switch on inside existing Search campaigns. Its two main features are search term matching (using broad match and keywordless technology to find more queries) and asset optimisation (text customisation and Final URL expansion). Google also adds controls such as brand settings and locations of interest, plus extra detail in the search terms report.

The promise is more relevant reach. The worry for many advertisers is paying for queries they would never have chosen. Tracking is how you find out which one you're getting.

What changed this week

The new {search_term_matchtype} parameter

As Search Engine Land reported on 11 November 2026, Google added {search_term_matchtype} to its ValueTrack parameters. It records how the search term that triggered your ad was matched:

1. e: exact match
2. p: phrase match
3. b: broad match
4. a: AI Max broad expansions and keywordless matches

This is different from the older {matchtype} parameter, which records the match type of your keyword. Used together, they show when AI Max stretched one of your keywords to a new query.

The four traffic classes Google describes

Google's ValueTrack help page now has a section on tracking AI Max matches. It recommends combining {matchtype}, {targetid}, {keyword} and {search_term_matchtype}:

1. Standard keyword match. {matchtype}: e, p or b. {search_term_matchtype}: e, p or b. What it means: Your keyword matched the search in the normal way.
2. AI Max broad expansion. {matchtype}: e, p or b. {search_term_matchtype}: a. What it means: AI Max expanded one of your keywords to a new search.
3. AI Max keywordless expansion. {matchtype}: a. {search_term_matchtype}: a. What it means: AI Max matched a search with no keyword, using your site and assets ({targetid} shows kwl-).
4. AI Max keywordless URL rules. {matchtype}: a. {search_term_matchtype}: a. What it means: Keywordless match based on your URL rules.

Google's own filtering logic is simple:

1. AI Max expansion traffic: {matchtype} is e, p or b, and {search_term_matchtype} is a
2. Standard keyword traffic: {matchtype} is e, p or b, and {search_term_matchtype} is not a

Customer Journey Insights (pilot)

On the same day, Search Engine Roundtable reported a new Google Ads help document for a Customer Journey Insights card on the Overview page. It's a pilot for eligible advertisers using Performance Max, Search or Shopping. It shows how many unique users moved across four stages (Unaware, Aware, Consider and Act) before and after your ads ran, and counts actions such as branded searches.

It's useful context for upper-funnel value. But it doesn't replace click-level tracking of who actually became a lead.

Key takeaways

1. {search_term_matchtype} = a means AI Max matched the search.
2. Combine it with {matchtype} to separate AI Max expansion from your own keywords.
3. Customer Journey Insights is a pilot overview card, not a lead-quality report.

How to set it up, step by step

Step 1: Update your tracking template

Add the parameter at account level (or campaign level if you need different templates). Google's documentation gives this example:

If you already use UTM tags or a custom template, add search_term_matchtype={search_term_matchtype} to it rather than replacing it. Google notes that tracking template changes can take 24-48 hours to show in your ads, so don't judge the data on day one.

Step 2: Test the landing page

Use the template test option in Google Ads, then click a test ad or preview the final URL. Check that:

1. The page still loads normally with the extra parameters
2. Your booking widget, forms and call tracking still work
3. Your site doesn't strip or redirect away the parameters

Step 3: Capture the values with every lead

This is where most accounts stop short. Clicks alone won't tell you about lead quality.

1. Store keyword, matchtype and search_term_matchtype in hidden form fields
2. Pass them into your CRM, hospital information system or lead sheet with each enquiry
3. Make sure call tracking and WhatsApp enquiries carry the same source details where your tools allow it

Step 4: Build an AI Max view in your reports

Create a simple segment or filter in your analytics tool and CRM:

1. AI Max expansion: matchtype in (e, p, b) and search_term_matchtype = a
2. Keywordless AI Max: matchtype = a
3. Standard keyword traffic: everything else

Then compare the two groups on the numbers that matter to your business.

Judge AI Max on lead quality, not clicks

Search Engine Land makes an important point: the new parameter shows how a search term was matched. It doesn't automatically prove AI Max is adding extra value, and it doesn't add new bidding or targeting controls.

So look past the click count. For each traffic class, compare:

1. Cost per lead and cost per qualified lead
2. Lead-to-appointment or lead-to-sale rate
3. Revenue or value per lead, where you can measure it
4. Wrong-fit enquiries, such as services you don't offer or locations you don't serve

For clinics and hospitals, "qualified" usually means a real patient enquiry for a service and location you provide, ideally one that turns into a booked consultation. A burst of cheap clicks for broad symptom searches can look good in Google Ads and still waste your front desk's time.

What to do with the results

1. AI Max leads look as good or better: keep it on and give it room, as long as budgets allow. Google notes AI Max won't be effective if a campaign is limited by budget.
2. AI Max leads are clearly worse: review the search terms report (which now shows headlines and URLs), add negative keywords, tighten brand and location controls, or turn off search term matching for specific ad groups.
3. Too little data to tell: wait for enough conversions before deciding. Small numbers swing a lot from week to week.

Key takeaways

1. Capture the match values with every lead, not just every click.
2. Compare cost per qualified lead, not cost per click.
3. Use controls and negatives before switching AI Max off completely.

Extra care for healthcare advertisers

Healthcare searches are sensitive, and AI-driven matching can reach queries you didn't plan for. If you run ads for a hospital, clinic or diagnostic centre:

1. Check AI Max search terms regularly for irrelevant, emergency or sensitive queries
2. Make sure ad text and landing pages Google generates or selects stay accurate and compliant
3. Keep claims factual and avoid guaranteed outcomes, in line with Google Ads healthcare policies and Indian advertising rules for medical practices
4. Review Final URL expansion so patients don't land on pages that don't match their search

We covered how to review AI-generated ad content in our guide to Google Ads AI content labels in India, and how to split budgets across channels in Google Ads channel prioritisation.

How Pengwin Solutions helps

Pengwin Solutions runs AI-based performance marketing with tracking built in from day one. For AI Max and Search campaigns, we:

1. Set up tracking templates, hidden form fields and CRM fields to capture match types with every lead
2. Build simple dashboards comparing AI Max and keyword traffic on cost per qualified lead
3. Review search terms, negatives, brand controls and landing pages every week
4. Keep healthcare campaigns accurate, compliant and focused on real appointments

Explore our Google Ads and search engine marketing services, our wider digital marketing services and our work for hospitals and clinics. For the bigger picture, read our guide to AI performance marketing for more leads and better ROI.

Frequently asked questions

What is the search_term_matchtype parameter in Google Ads?

It's a ValueTrack parameter that records how the search term that triggered your ad was matched: e for exact, p for phrase, b for broad and a for AI Max broad expansions and keywordless matches.

How do I identify AI Max traffic in Google Ads?

Add {matchtype} and {search_term_matchtype} to your tracking template. Clicks where matchtype is e, p or b and search_term_matchtype is a came from AI Max expansion. Clicks where matchtype is a are AI Max keywordless matches.

What is the difference between matchtype and search_term_matchtype?

{matchtype} shows the match type of your keyword. {search_term_matchtype} shows how the actual search term was matched. Together they reveal when AI Max expanded a keyword to a search you didn't target directly.

Does the new parameter show whether AI Max is worth it?

Not on its own. It labels the traffic, but you still need to compare conversions, lead quality and cost per qualified lead for AI Max traffic against standard keyword traffic.

How long do tracking template changes take?

Google says changes to tracking templates take 24 to 48 hours to be reflected in your ads, so allow time before checking the data.

What is Customer Journey Insights in Google Ads?

It's a pilot reporting card on the Google Ads Overview page for eligible Performance Max, Search and Shopping advertisers. It shows how users moved through Unaware, Aware, Consider and Act stages around your ads.

Find out what AI Max is really bringing you

Call +91 90326 18332, email hello@pengwinsolutions.com, or contact Pengwin Solutions for a Google Ads tracking and AI Max review focused on qualified leads, not just clicks.