TL;DR: In 70 to 80% of Google Ads accounts with lead quality problems, the root cause is not the targeting — it is the conversion data being sent to Google. Two fixes account for most of the improvement: replacing click-to-call tracking with duration-gated call conversions, and replacing raw form submissions with offline conversion signals from a CRM. Fix both and Google stops optimizing for spam.

Metric	Value
Accounts where conversion data is the root cause	70-80%
Primary spam driver for calls	Click-to-call conversion tracking
Fix #1	Duration-gated calls (calls from ads or call swap)
Fix #2	CRM-based offline conversions
Required follow-up window	Same business day or within 24 hours
Advanced optimization target	Revenue events (booked appointments, closed deals)

The Two Conversion Tracking Fixes That Eliminate 80% of Google Ads Lead Spam

This post is based on a video Peterson published on the Creekside Marketing YouTube channel: How To Improve Google Ad Lead Quality.

If your Google Ads lead quality is poor — mostly junk submissions, spam form fills, and calls from people who were never going to buy — your first instinct is usually to blame the targeting. Wrong keywords. Wrong audiences. Wrong campaign type. We audit dozens of accounts each year across $20M+ in managed ad spend, and the targeting is rarely the primary issue. In 70 to 80% of cases, the root cause is the conversion data being sent to Google.

Google optimizes toward whatever you define as a conversion. If you define a bot filling out your form as a qualified lead, Google will find more bots. If you define someone tapping a phone number button as a valuable customer, Google will find more people who tap phone number buttons without ever calling. The problem is not Google. The problem is the instructions you are giving it.

Two conversion tracking mistakes cause most Google Ads lead quality problems. Fix them and the spam drops significantly.

Start with the Search Term Report: The Fast, Obvious Fix

The search term report is the most commonly cited solution for Google Ads lead quality problems, and it genuinely helps — just not as much as most people expect, and not enough on its own when the underlying conversion definition is wrong.

The process is fast: open your Search campaigns, navigate to the search terms report, sort by conversions (not clicks, not impressions — conversions), and look for terms that should not be driving conversion actions. Irrelevant searches generating conversions signal that your targeting is picking up unintended traffic. When you find them, click “add as negative keyword.” Google stops showing your ads to people who search those exact terms going forward.

Adding reCAPTCHA to your contact forms belongs in the same category. It stops bots from autofilling submissions, though it does nothing to filter unqualified humans who fill out the form intentionally.

Both of these are worth doing and worth doing regularly. The limitation is that search term hygiene and reCAPTCHA filter bad inputs. They do not teach Google what a good lead looks like. That requires better conversion data, which is where the real leverage lives.

The Root Cause of Bad Google Ads Lead Quality: Your Conversion Data

According to Creekside Marketing’s analysis across $20M+ in managed ad spend, the issue overlooked in 70 to 80% of accounts struggling with lead quality is the type and quality of conversion data being sent to Google. Most account managers know about the search term report. Almost no one outside of advanced practitioners has properly configured what they are actually telling Google to optimize toward.

Every conversion action is an instruction to the algorithm: find more people who produce this outcome. If the outcome you are measuring is not a qualified lead, Google will optimize toward the wrong outcome at scale. Performance Max campaigns in particular amplify this effect because they distribute across a much broader network than Search alone.

There are two places where this breaks down most often.

Fix #1: Stop Tracking Click-to-Call as a Conversion

Click-to-call is the most common bad conversion signal we find in underperforming accounts, and it shows up across almost every industry. It measures one thing: someone tapped your phone number on your website. No call happened. No conversation occurred. No qualification took place. Someone clicked a button and Google counted it as a successful conversion.

When you optimize a campaign toward click-to-calls, you are telling Google to find people who tap phone number links. Google is very good at following instructions. It will find those people. The problem is that tapping a phone number button and being a qualified lead are two entirely different things. Bots tap phone numbers. Accidental clicks happen constantly on mobile. Someone might tap the number, realize they called the wrong business, and hang up in three seconds. Google counted all of that as a win because that is what you told it to count.

The fix is to replace click-to-call with a duration-gated call conversion. Google offers two options that work:

Calls from ads: Tracks calls originating directly from the ad itself, with a minimum call duration you define as the threshold for a conversion.

Call swap or third-party call tracking: A call tracking tool that only records a conversion when a caller meets your minimum duration requirement, regardless of how the call was initiated.

The right minimum call duration is business-specific. Based on Creekside Marketing’s experience across dozens of industries: set the threshold at whatever it takes your team to determine whether a caller is actually interested. Some businesses know within 30 seconds. Others need a couple of minutes of conversation. You know your sales process better than any platform default does. Use that knowledge to set the threshold.

Once you make this change, Google begins optimizing toward people who stay on the phone. Call quality improves because signal quality improved.

Fix #2: Replace Raw Form Submissions with Offline Conversion Signals

This is the larger of the two fixes, the one most accounts are missing, and the one with the most compounding upside over time. When someone submits a form on your landing page, Google counts it as a conversion immediately — no review, no filter, no quality check. A bot that autofills your form in two seconds counts the same as a $50,000 customer. One person submitting the same form five times counts as five separate conversions if your tracking is set to “every conversion,” which is the default in many accounts. The search term could be completely irrelevant, the submitter could be in another country — none of it matters because you told Google that a submitted form equals success.

Two quick improvements within form tracking itself:

Switch conversion counting from “every conversion” to “one per person.” When set to “every conversion,” each interaction is counted. Switching to one conversion per person ensures each unique visitor counts once regardless of how many times they fill out the form. This immediately reduces inflated conversion numbers and removes a misleading signal from your data.

Add reCAPTCHA to your forms. Stops automated bot submissions. Does not filter unqualified humans, but reduces one category of noise.

These are hygiene fixes. The real fix is offline conversion tracking.

How Offline Conversions Work and Why Response Time Is Not Optional

Offline conversion tracking works by withholding the Google signal until your team confirms qualification. Instead of sending Google a signal the moment someone submits a form, the submission goes into your CRM. A salesperson follows up. If the lead is qualified — they answered the phone, they can afford your service, they are genuinely interested — someone marks them as qualified in the CRM. At that point, your system pushes the conversion signal to Google.

The result is that you replace Google’s raw input (form submitted) with your qualified output (lead confirmed by a human). Google now knows which of its targeting decisions actually produced a real customer. Over time, the algorithm recalibrates who it shows your ads to based on that signal rather than the raw form submission signal.

The prerequisite is a CRM. Offline conversions require a system to record lead qualification status and push that data back to Google. If you are running paid advertising at any meaningful budget without a CRM, that investment comes before offline conversion configuration. A CRM also gives you visibility into your entire sales funnel beyond just ad performance, so it pays dividends in multiple directions.

One variable most accounts underestimate: follow-up speed is not just a sales discipline — it is a data quality issue for the algorithm. If your team takes two or three days to respond to form submissions, the offline conversion signal arrives too late to build a clear pattern. The lead has already contacted three competitors. The data lag reduces what Google can learn from the signal. Creekside Marketing’s standard is same-day follow-up or within 24 hours. This is a baseline sales practice as much as an ad optimization requirement — a slow response time means lost deals, not just noisy data.

Where This Leads: Optimizing for Revenue Events, Not Just Leads

Once offline conversions are running and producing clean signals, the next optimization target is revenue events rather than just qualified leads — which means sending Google signals tied to actual purchases or appointments, not form fills or phone calls. This is the most powerful conversion action available and requires the infrastructure built through the previous steps.

We work with a high-end cosmetic dental practice where we do not optimize for form submissions or phone calls at all. The conversion action we optimize toward is a booked appointment, specifically patients who paid a deposit and actually came in for their visit. At that practice, a single patient represents $15,000 or more in treatment revenue. When we send Google the signal that this type of person converted, we are telling it to find more people with the behavioral and demographic profile that led to that outcome.

The difference in lead quality between “someone tapped my phone number” and “someone paid and showed up” is not incremental. It is a complete replacement of the optimization target. Google has access to behavioral intent signals, demographic patterns, and purchase likelihood data that you cannot directly control or see. Give it a revenue signal and it uses those signals to find more revenue-producing customers. Give it a click-to-call signal and it finds more people who tap phone number buttons.

The progression in high-performing accounts follows a clear path: click-to-call tracking replaced by duration-gated call conversions, then offline qualified leads, then offline revenue events. Each step up the ladder is a higher quality input and a more accurate optimization target.

Performance Max Amplifies Both the Good and the Bad

Conversion data quality matters significantly more when running Performance Max campaigns than when running standard Search campaigns alone. Performance Max distributes ads simultaneously across Google Search, YouTube, the Display Network, Gmail, Maps, and Discover, with the algorithm deciding where to show your ads and to whom based entirely on your conversion data and goals. Broader distribution means more surface area for bad signals to generate bad results at scale.

Standard Search campaigns are more constrained — they only show on Google search results. That constraint limits both reach and the damage from poor conversion signals. Performance Max has no such constraint. Good signals give it a massive targeting advantage. Bad signals give it a large problem to scale efficiently.

If you are running Performance Max with click-to-call as the primary conversion action, you are giving Google permission to find click-happy people across the entire Google ecosystem. The impression and click volume will look impressive. The lead quality will not match.

For a closer look at Performance Max mistakes that hurt account performance, see Stop Managing Google Ads Like It’s 2020.

Frequently Asked Questions

What is the fastest single fix for Google Ads lead quality?

The fastest single change is replacing click-to-call as your primary conversion action. Swap it for a duration-gated call conversion using calls from ads or a call tracking tool with a minimum call length threshold. This can be implemented in an afternoon and immediately changes what Google selects for starting with the next optimization cycle. The threshold should match how long it takes your team to screen an incoming caller — 30 seconds works for some businesses, a couple of minutes for others.

Do I need a CRM to use offline conversions?

Yes. Offline conversion tracking requires a system that records lead qualification status and can push that data back to Google when a lead is confirmed as qualified. A CRM is the standard tool for this workflow. Running paid advertising at meaningful budgets without a CRM also creates visibility gaps across your entire sales funnel, so the investment serves multiple purposes beyond just Google Ads.

How long does offline conversion data take to improve lead quality?

Targeting improvement is gradual. Google needs data to recalibrate its understanding of who your best leads are. Most accounts see meaningful changes in lead quality over 30 to 90 days of consistent offline conversion signals. The timeline depends on your monthly lead volume and how quickly your sales team follows up and qualifies leads in the CRM. Higher volume and faster follow-up accelerates the learning cycle.

Should I use offline conversions with Performance Max?

Yes, and it matters more with PMax than with Search. Make sure the offline conversion action is set as the primary goal for the campaign. If click-to-call or raw form submissions remain as the primary conversion, Google will continue to optimize toward those regardless of what offline signals you add as secondary goals.

Is the search term report still worth reviewing if conversion tracking is fixed?

Both are necessary and work differently. Search term hygiene filters out irrelevant traffic sources before they enter the funnel. Offline conversion tracking improves what Google is trained to optimize toward. Search term review is the floor — it catches obvious irrelevant traffic. Conversion data quality is the ceiling — it defines what success means. For a step-by-step walkthrough of auditing your conversion tracking setup, see The Fastest Way to Audit Google Ads Conversion Tracking and Catch Broken Tags.

The Bottom Line

Google Ads lead quality is almost always a conversion data problem, not a targeting problem. The targeting will not improve until the data does. Google can only optimize toward the signal you give it, and most accounts are giving it signals that have nothing to do with qualified buyers.

According to Creekside Marketing’s analysis across $20M+ in managed ad spend: fix what you are telling Google a conversion looks like, and the algorithm recalibrates. Replace click-to-call with duration-gated calls. Replace raw form submissions with CRM-qualified offline conversions. Set up response processes so follow-up happens within 24 hours. Then, as data matures, migrate toward revenue event optimization rather than just lead optimization.

This is not a shortcut. Setting up offline conversions properly requires a CRM, a consistent follow-up process, and some technical configuration. But it is the kind of infrastructure that compounds over time. Every day you run the account with cleaner signals, Google gets better at finding the right people. The gap between where you start and where you end up after 90 days of clean data is where the real return on ad spend lives.

If you want an honest assessment of your conversion tracking setup and a clear picture of what it would take to move from noise optimization toward revenue optimization, the 10K Profit Audit is where we start with every new client. We look at exactly what conversion actions are running, what they are actually measuring, and what the path to better data looks like for your specific account.

For more on how we build and manage Google Ads accounts around this approach, see our Google Ads management service page.

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About the Author

Peterson Rainey is the founder of Creekside Marketing, where the team manages $20M+ in paid ad spend across Google Ads and Meta Ads. He writes about what actually works in performance advertising, built on real client campaigns across dozens of industries. Request a free Google Ads audit to find out where your conversion tracking stands and what it is costing you in lead quality.