A few years ago, Twitter filled up with red flag emojis. People were sharing the traits that made them say “no thanks” when dating, and it didn’t take long for brands to join in.




And of course;

The trend has moved on, but the idea is just as useful when you’re choosing a marketing agency. Hiring the wrong one doesn’t just cost you the monthly fee. It costs you months of momentum, budget spent on the wrong things and the time it takes to unpick it all afterwards.
Here are the red flags worth looking out for, both before you sign and once you’re working together.
Red Flags Before You Sign
They guarantee rankings or results
No agency can promise you the top spot on Google. Search results change constantly, and 2026 alone has seen two core updates and four spam updates shake up rankings across almost every industry. An agency that guarantees a position is either overpromising or planning to use tactics that put your site at risk.
Their proposal could be for anyone
If the proposal would work just as well with another company’s name on it, it probably wasn’t written for you. A good agency takes the time to understand your brand, your audience and your competitors before recommending anything.
They don’t ask how your business makes money
An agency should want to know your margins, your sales process, your best customers and how a lead turns into revenue. Without that, they can only optimise for clicks and traffic, not for the results your business actually needs.
You get jargon instead of answers
Every industry has its own language, but a good agency explains its work in plain English. If you leave every call more confused than when you joined, that’s a sign something is being hidden behind the terminology.
They can’t show relevant proof
Ask for case studies, reviews and examples of similar work. It’s also worth asking who will actually work on your account, and looking them up on LinkedIn to check their experience.
You won’t own your accounts and data
Your ad accounts, analytics and website should always belong to you. If an agency wants to run everything through accounts they control, you could lose your data and history if you ever part ways.
Red Flags Once You’re Working Together
“Just trust us” reporting
You should know what’s being reported, how often, and what it means for your business. Reports full of impressions and vanity metrics, with no mention of leads or sales, are a warning sign.
Slow or patchy communication
A good agency keeps you updated on strategy, progress and results, including when things aren’t going to plan. If you’re always chasing for updates, or waiting days for a reply, the relationship isn’t working.
No proactive ideas
Your agency should be keeping up with what’s changing in your industry and bringing ideas to you, whether that’s a new channel, a new campaign or a change in approach. If every idea comes from your side, you’re doing their job for them.
Outdated or risky tactics
Digital marketing changes quickly, and what worked a few years ago may not work now. One client came to us after finding their previous agency’s targeting methods simply weren’t effective any more. Watch out for tactics that could actively harm you too, such as bought links or large volumes of low-quality AI content, both of which Google’s spam updates are designed to catch.
Results that can’t be measured or aren’t improving
Every campaign should have clear, measurable goals agreed at the start. If you can’t tell whether things are working, or the numbers have been flat for months with no plan to change them, it’s time to ask questions.
No long-term plan
Running ads or making small website tweaks without an overall strategy rarely leads to lasting growth. A good agency should be able to tell you where things are heading over the next six to twelve months, not just what they did last month.
Questions to Ask Before You Sign
- What results have you achieved for businesses like ours?
- Who will work on our account day to day?
- How will you report on results, and how often?
- Which metrics will you judge success on?
- Will we own all our accounts and data?
- What happens if results don’t improve?
- How quickly do you usually respond to clients?
Spotted a Few Red Flags in Your Current Agency?
If several of these sound familiar, it may be time for a change. The right agency should feel like an extension of your marketing team: clear, proactive and focused on the same goals as you.
If you’d like a second opinion on your current setup, our free digital marketing audit is a no-pressure way to see where things stand.
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