Most Google Ads accounts reviewed by a professional have the same problems: too many keywords, too little negative keyword coverage, and bids set and forgotten. After nine years running a marketing agency, the patterns stop surprising you — but the wasted spend never does.
A proper Google Ads review isn't a one-off health check; it's the foundation of every decision you make about where your budget goes, which campaigns earn more, and which ones get switched off.
What a Google Ads Review Actually Covers
A Google Ads review is a structured audit of a Google Ads account that evaluates campaign structure, bid strategy, keyword relevance, Quality Score, ad copy performance, landing page alignment, and budget allocation. The goal is to identify where spend is wasted, where opportunity is being missed, and what changes would most improve return on ad spend (ROAS).
That definition matters because the term gets used loosely. Some agencies call a PDF with three screenshots a review. Others treat it as a 60-page document that takes three weeks to produce and results in a proposal to hire them. Neither is particularly useful for a small or medium-sized business that needs to make decisions quickly.
A useful google ads review answers specific questions: which keywords are eating budget without converting, which ad groups have Quality Scores below six, whether conversion tracking is actually firing correctly, and whether the bid strategy matches the business objective. If your review doesn't answer those questions, it's more a report than a review.
For a deeper look at what the account management layer involves day-to-day, this guide on what Google Ad management actually involves covers the ongoing mechanics well.
How to Do a Google Ads Review Yourself
You don't need a specialist to run a google ads review — you need access to the right reports and a methodical approach. The Google Ads interface surfaces most of what you need, though it takes time to know where to look.
Start with the Search Terms report. This shows what people actually typed before clicking your ad, as opposed to the keywords you're bidding on. In almost every account we've ever audited, there are irrelevant search terms consuming budget. Adding these as negative keywords is usually the highest-impact, lowest-effort change available.
Next, look at your Quality Scores at keyword level. Google scores ads from one to ten based on expected click-through rate, ad relevance, and landing page experience. Keywords scoring below six are costing you more per click than they should. Either tighten the ad copy to match intent, improve the landing page, or pause the keyword and restructure.
Then check your conversion tracking. It sounds basic but in a significant portion of accounts, conversions are either not tracked, tracked twice, or attributed to the wrong action. Google's own conversion tracking documentation is worth reading before you draw any conclusions from performance data.
Finally, look at device performance, time-of-day data, and geographic breakdown. You'll often find that mobile converts at half the rate of desktop but is receiving the same bids, or that a particular city is responsible for a disproportionate amount of wasted spend. These adjustments are mechanical once you see the data — the challenge is actually looking.
| Review Area | What to Look For | Common Problem Found |
|---|---|---|
| Search Terms Report | Irrelevant queries triggering ads | Budget lost to unrelated intent |
| Quality Score | Keywords scored below 6 | Inflated cost-per-click |
| Conversion Tracking | Firing correctly, no duplication | Misleading performance data |
| Device Performance | CPA variance across device types | Mobile underbidded or overbidded |
| Negative Keywords | Coverage across campaigns | Broad match eating budget |
| Budget Distribution | Spend share across campaigns | Top performers underfunded |
Why Regular Review Matters More Than a One-Off Audit
One of the things we learned early in agency life is that a google ads review done once and filed away is worth almost nothing. Google Ads is a live auction. Competitor bids shift, Quality Scores fluctuate, seasonal demand changes, and Google's own algorithm updates affect how campaigns behave. What was working in January may be haemorrhaging money by April.
This is the operational reality that most small businesses don't account for when they set up their first campaign. They do the initial setup carefully — or pay someone to do it — and then assume the account will more or less run itself. It won't. Campaigns drift. Bids become misaligned with market conditions. Keywords that were once relevant accumulate irrelevant search terms without anyone noticing.
The businesses that get the best results from Google Ads treat it as an ongoing management task, not a campaign launch. That means reviewing performance weekly at minimum, adjusting bids based on conversion data, pausing keywords and ads that aren't converting, and reallocating budget toward what's working. For context on what that management layer actually costs when you outsource it, see what SMEs actually pay for Google Ads.
The frequency argument also applies to the review itself. A quarterly google ads review is a reasonable minimum. Monthly is better. Weekly is what the accounts that actually perform well tend to get — whether from a human or, increasingly in 2026, from an AI agent that monitors and adjusts continuously.
What an AI Agent Does That a Manual Review Misses
Manual reviews have a ceiling. A human can spend a few hours in an account, identify the obvious problems, make changes, and move on. What they can't do is monitor the account continuously and respond to changes as they happen — pausing a keyword at 2am when it starts burning through budget on irrelevant traffic, or shifting bids in real time when a competitor drops out of an auction.
This is where Overtime operates differently. Rather than producing a periodic google ads review document, it logs directly into your Google Ads account, monitors performance continuously, adjusts bids, pauses underperforming keywords and ads, and reallocates budget toward what's converting. It then sends a plain-English summary of what it did and why.
For an SME without a dedicated PPC manager, this closes a significant gap. The account gets the consistent attention it needs without requiring the business owner to become a Google Ads expert or pay agency retainer fees for someone to check in once a month. If you want to understand what that looks like in practice, the detailed breakdown of how it works is the clearest starting point.
That said, an AI agent isn't a substitute for strategic thinking. If your offer is wrong, your landing page doesn't convert, or your market is too competitive for your budget to generate meaningful volume, no amount of bid adjustment will fix it. Overtime handles the execution layer — the continuous, mechanical work of running a well-managed account. The strategy layer still requires human judgement.
For a comparison of this approach against the traditional agency model, this piece on AI PPC agency versus traditional agency covers the trade-offs honestly.
The Cost of Skipping a Google Ads Review
The financial case for a regular google ads review is straightforward. Unreviewed accounts tend to accumulate waste over time — spend on irrelevant search terms, inflated CPCs from low Quality Scores, budget going to campaigns that haven't converted in months. In our agency experience, the first review of an account that's been running unmanaged for six months or more typically finds 20 to 40 per cent of spend going to activity that can be immediately paused or refined.
At small SME budgets — say £1,000 to £3,000 per month — that's a meaningful number. At the higher end, it's the difference between an account that funds itself and one that quietly drains cash without anyone noticing.
The cost of reviews varies depending on how you get them done. Agency audits can run from a few hundred pounds for a basic report to several thousand for a full account restructure recommendation. Doing it yourself is free but takes time and requires the knowledge to interpret what you're seeing. An AI agent like Overtime's approach to Google Ads management sits at a different price point — see Overtime's pricing for current figures.
The cleaner question isn't what a review costs. It's what not reviewing costs. For most SMEs running Google Ads without active management, the answer is: more than they realise.
If you've identified high cost per acquisition as a specific problem in your account, this guide on fixing high CPA in Google Ads is worth reading alongside this one.
Before you do anything else today, pull your Search Terms report for the last 30 days and look at how much of your spend went to queries that have nothing to do with your business. That number is your starting point. A structured google ads review will tell you what to do with it — and if you'd rather have an AI agent handle the ongoing work of acting on that data, Overtime is built specifically for that.
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Frequently Asked Questions
What does a Google Ads review include?
A Google Ads review covers campaign structure, keyword performance, Quality Scores, ad copy relevance, conversion tracking accuracy, and budget allocation. The aim is to identify wasted spend and missed opportunity. A useful review produces specific actions, not just observations.
How often should I review my Google Ads account?
At minimum, a quarterly review is advisable — monthly is better for accounts with meaningful spend. Weekly check-ins on core metrics like conversion rate, CPC, and search term reports catch problems before they become expensive. Accounts left unreviewed for months typically show significant drift from intended performance.
Why is my Google Ads Quality Score low?
Quality Score reflects how well your keyword, ad copy, and landing page align with a searcher's intent. A score below six usually means the ad copy isn't closely matched to the keyword, the landing page doesn't address what the ad promises, or the click-through rate is below Google's expectations for that query.
Should I hire an agency or use an AI agent for Google Ads management?
It depends on your budget and what you need. Agencies offer strategic input and creative work but typically charge management fees that don't suit smaller budgets. An AI agent handles continuous bid adjustment, budget reallocation, and performance monitoring at a lower cost — without requiring you to manage the account yourself.
Can I do a Google Ads review without any technical knowledge?
Yes, to a degree. The Search Terms report, Quality Score column, and conversion data are accessible to any account holder. The harder part is knowing what thresholds matter and what changes to make. A structured checklist helps. For more complex issues — campaign architecture, bidding strategy, attribution — practitioner knowledge makes a material difference.