Why your Google Ads leads are bad

When Google Ads produces plenty of leads and few of them are any good, the cause is almost always that the account is optimizing toward the wrong definition of a lead. Automated bidding finds more of whatever you count as a conversion. If that's every form submission including spam, every call including wrong numbers, or a thank-you page that fires on refresh, the algorithm will dutifully deliver more of those. Fix the definition and the tracking, and lead quality follows within a few weeks.

The usual causes, in order of frequency

1. Spam forms counted as conversions. Bot submissions from the contact form fire the conversion tag like any other. Bidding learns that whatever traffic produced them is good.
2. Every call counted, regardless of length. A 10-second wrong number counts the same as a 6-minute intake. Set a minimum call duration and, better, mark qualified calls in the call tracking platform.
3. No offline data. Google never learns which leads became customers, so it can't tell a $5,000 case from a tire-kicker. Offline conversion import from your CRM fixes this and is the single biggest lever on quality.
4. Double counting. GA4 and Google Ads both tracking the same form, both imported. Every lead worth two; the algorithm's signal is noise.
5. Broad match without a clean signal. Broad match with bad conversion data expands into whatever converts on paper. With good data it's fine; with bad data it's a lead-quality disaster.
6. The landing page invites the wrong people. A "free consultation" offer with no qualifying language attracts people who want free advice. One qualifying field or one sentence of expectation-setting often fixes it.
7. Search terms nobody reviews. "Free," "DIY," "salary," "jobs," competitor names, and out-of-area cities all convert on paper sometimes. Negatives need weekly review.

How to diagnose it

Pull 30 days of leads and grade each one: qualified, unqualified, spam, wrong number. Then map them back to campaign, keyword and page. The pattern is usually obvious: one campaign or one match type producing most of the junk, or one page producing spam because the form has no protection.

The fix, in order

Tracking first: spam filtering on forms, minimum call duration, deduplication between GA4 and Ads. Then offline import: a weekly upload of qualified and closed leads from the CRM, so bidding optimizes toward them. Then structure: separate the intents so the algorithm can tell them apart. Then negatives, weekly. Then the page. How we set up tracking.