Guide 101: What Is PPC, and How Do You Actually Conduct an Audit on It?

Most PPC accounts that have been running for six months or more, including plenty built by people who read a PPC beginners guide and did everything right at launch, are quietly wasting a meaningful share of their budget, and the account owner usually has no idea until someone actually looks. That’s what a PPC audit is for.

What is PPC, quickly

PPC, pay-per-click, is advertising where you pay each time someone clicks your ad rather than a flat fee for it being shown. A PPC campaign is the specific structure built to run that advertising, the keywords, ad copy, targeting, and budget all working together toward one goal, whether that’s sales, leads, or bookings.

What is a PPC audit, and why it matters even for accounts that seem fine

A PPC audit is a systematic review of an active account to find what’s wasting spend, what’s underperforming, and what’s working but could work harder. “The account seems fine” is exactly the situation an audit is for, problems that are actively broken tend to get noticed and fixed quickly. It’s the quiet, gradual waste that survives, since nothing about it looks urgent enough to investigate on its own.

How to do a PPC audit, step by step

Start with account structure. Are campaigns organized logically, with tightly themed ad groups? A messy structure with unrelated keywords crammed into one ad group makes it nearly impossible to write ad copy that’s genuinely relevant to all of them, which drags down performance across the board.

Review search terms, not just keywords. The keywords you’re bidding on and the actual searches triggering your ads are often two different lists. Pulling the search terms report reveals what people are really typing, which usually surfaces irrelevant matches quietly burning through budget.

Check for missing or weak negative keywords. This is one of the most common findings in almost any PPC campaign audit. Without a solid negative keyword list, ads show up for searches that were never going to convert, and every one of those clicks costs money for nothing.

Look at quality score and ad relevance. Low quality scores mean paying more for the same position. This usually traces back to a mismatch between the keyword, the ad copy, and the landing page, three things that should all say roughly the same thing and often don’t.

Check landing page match. Every ad should send traffic somewhere directly relevant to what it promised. A generic homepage destination for a specific-intent ad is one of the more common, and more costly, mismatches an audit turns up.

Review bidding strategy against actual goals. Is the campaign optimizing toward the outcome that actually matters, sales, leads, sign-ups, or just toward clicks and impressions? Bidding strategy misaligned with the real goal is a subtle but expensive mistake that can run for months unnoticed.

Confirm conversion tracking is actually accurate. Every finding in a PPC audit depends on this being right. Broken or missing conversion tracking means every other piece of analysis in the audit is built on unreliable data.

Check for wasted spend on underperforming keywords. Some keywords in almost every account are burning budget with little or nothing to show for it. An audit identifies them specifically, rather than leaving the whole account to average out around a few strong and several weak performers.

What a proper PPC audit report should actually include

A useful PPC audit report goes well beyond a list of problems. It should prioritize findings by potential impact, not just list every issue in the order it was found. It should include specific, actionable recommendations, not vague ones like “improve targeting.” And it should quantify the actual estimated impact where possible. This issue is likely costing roughly this much per month, so the business can prioritize fixes by what actually matters most rather than by whatever’s listed first.

Ecommerce PPC audits, and Amazon specifically

An ecommerce PPC audit adds a layer beyond a standard account review: checking product feed quality, shopping campaign structure, and whether the right products are actually being promoted relative to margin and inventory. An Amazon PPC audit is its own distinct discipline entirely. It involves reviewing organic versus sponsored placement balance, ACOS by product, and search term reports specific to Amazon’s own advertising console, which works differently from Google Ads in several important ways.

Free PPC audit versus paid PPC audit services

A free PPC audit, often offered by agencies as an initial consultation, typically covers surface-level findings, enough to demonstrate real value and identify obvious issues. A paid, in-depth PPC audit service usually goes further: full historical performance analysis, competitor comparison, and a genuinely detailed action plan built around your specific account and goals. For a smaller account, a free audit may reveal enough to act on. Larger accounts with meaningful monthly spend generally get more out of paying for the deeper version.

PPC audit tools worth knowing about

Every major platform, Google Ads and Amazon included, has native reporting sufficient for a basic account audit. Beyond that, dedicated audit tools can automate parts of the process, particularly flagging structural issues across large accounts faster than a fully manual review could manage. For a single, smaller account, manual review using the platform’s own reporting is often thorough enough without needing additional tooling.