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Strategy· 6 min read

How to Choose a Google Ads Agency for Your Online Store: 7 Concrete Criteria

Not portfolios and vague testimonials. Seven verifiable criteria for evaluating a Google Ads agency for eCommerce before you sign the contract.

Adela Mincea
Adela Mincea·

3 March 2026

·

6 min read

How to Choose a Google Ads Agency for Your Online Store: 7 Concrete Criteria

Why Standard Criteria Don't Work

When you're looking for a Google Ads agency for your online store, you always get the same advice: look at their portfolio, ask for references, check if they're a Google Partner. All technically correct, all useless in practice.

A portfolio can be fabricated. References are selected by the agency. Google Partner certification guarantees nothing about the actual quality of managing your account.

There are seven concrete, verifiable criteria that any business owner can apply without being a Google Ads expert.

1

Who Owns the Google Ads Account

The first thing to clarify, before any other discussion: is the Google Ads account created on your MCC or the agency's MCC? The correct answer is that you are the account owner, and the agency receives "Manager" access through Google Ads MCC. If the agency insists on creating the account on their infrastructure, it means at the end of the contract you leave without data history, without built remarketing audiences, and without tracking configurations. A Google Ads account's history has real value — the algorithm calibrates based on it.

2

Request Viewer Access to an Active Account They Manage

Any serious agency can offer read-only access to a real client account (with that client's consent). Not to judge their strategy, but to see what the actual structure looks like: how many active campaigns, how many negative keywords, what ad extensions are configured, whether there's segmentation by device type. An account with 3 campaigns and 0 negative keywords after 6 months of management says more than any presentation.

3

Check What Metrics They Report by Default

Ask: "What do I receive monthly in your report?" If the answer mainly contains impressions, CTR, and spend, that's a bad sign. If the answer includes ROAS by product category, cost per new vs. returning customer acquisition, and comparison to previous month and same period last year, that's a good sign. Agencies that report vanity metrics do so because they can't justify real profitability.

4

Understand the Retainer Structure and What It Actually Includes

The monthly management price says nothing without knowing what it includes. The right questions: how many actual work hours are allocated to your account per month? Who manages the account — senior or junior? Are A/B tests on ads included or extra? Are product feed optimizations included or billed separately? An agency that can't answer these questions clearly will be equally unclear in the working relationship.

5

Test How They Respond to a Simple Technical Objection

Ask a specific technical question, for example: "How do you approach Performance Max campaigns for a store with 500+ products and different margins?" You don't need to evaluate the technical answer in detail. Evaluate whether they explain the logic in business terms or whether they sell you generic benefits. An answer like "PMax is great, Google recommends it" is a sign they haven't thought strategically about your specific situation.

6

Check Whether They Have Specific Romanian eCommerce Experience

Google Ads for local services works completely differently from Google Ads for an online store with a product feed, Shopping campaigns, and Black Friday seasonality. Ask how many eCommerce accounts they actively manage and what the average media budget value is that they administer. If they predominantly work with local services or B2B, they don't have the necessary experience for optimizing a feed with thousands of products and complex Performance Max campaigns.

7

Clarify Contract Exit Conditions

Read the exit clause before signing anything. What happens to the Google Ads account at the end of the contract? What about remarketing audiences? What about conversion history? A fair contract stipulates that you remain owner of all digital assets. A problematic contract implicitly transfers ownership or makes exit costly through long notice period clauses and penalties.

An Additional Signal: Ask About the First 30 Days

Any serious agency has a defined onboarding process. Ask: "What do you do in the first month?" The answer should include: audit of the existing account or new account setup with clear structure, tracking verification and remediation, keyword research specific to your product categories, and an initial campaign with controlled budget to collect data. If the first step is "we launch campaigns and see what happens," that's not a process, it's improvisation.

The most important asset you build with an agency isn't the ads. It's the data history in your Google Ads account. Make sure it stays yours.

A paid media strategy without a clear funnel logic costs more than you think.

At DAFE Digital we don't launch isolated campaigns — we build acquisition systems. We identify the right channels for each stage of the buying decision, allocate budgets with logic and measure what matters: profit, not vanity metrics. If you want to understand what a correctly built paid media strategy would look like for your business, start with a conversation.

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Adela Mincea

Adela Mincea

Performance Marketing Expert · Marketing Economist · Trainer

Performance marketing specialist with 10+ years of experience running Google Ads, Meta Ads and LinkedIn Ads campaigns for businesses in Romania and internationally.

Tags

#agentie google ads#ecommerce#google ads management#cum alegi agentie#strategie
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