Advertising Online 101 : How to tell if your marketing is actually working

As we've said before - measure first, market second

24 August 2026

Ask a business owner whether their marketing is working and you'll usually get one of two answers. Either "yes, we're really busy at the moment" or "not really, it's been quiet." Both feel like answers. Neither of them is, because both are describing a general feel rather than actually measuring anything. Busy could be marketing, or it could be a good referral, or the time of year, or a competitor going bust. Quiet could mean the marketing has failed, or it could mean it's working perfectly and something else has gone wrong.

If the only instrument you've got is a general sense of how things feel, you can't tell the difference. And if you can't tell the difference, every decision you make about marketing is essentially a guess dressed up as a judgement.

Vanity versus value

The first thing to sort out is which numbers actually matter, because most of the ones that get quoted don't. Follower counts, likes, "reach", the number of people who saw a post - these are the numbers platforms love to show you, because they're always going up and they make you feel good. They're also, on their own, close to meaningless. A post that reached ten thousand people and produced nothing is worth less than one that reached fifty and produced a customer.

The numbers that matter are the ones connected to money. How many enquiries came in. How many of those turned into customers. What each of those customers was worth. Everything else is a means to that end, and interesting only insofar as it moves those figures. If your follower count doubled and your enquiries didn't, your follower count is a hobby, not a result.

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You have to know where people came from

This is the bit most businesses skip, and it's the bit that makes everything else possible. When an enquiry comes in, you need to know - even roughly - where it came from. Did they find you on Google? See you on Instagram? Get your name from an existing customer? Walk past the sign?

You don't need clever software to do this. For a lot of smaller businesses, the single most powerful marketing tool is a member of staff asking "can I ask how you heard about us?" and writing the answer down somewhere consistent. Do that for three months and you'll know more about what's working than most businesses ever bother to find out. Patterns emerge fast. You discover that the thing you spend most on brings in least, and the thing you nearly cancelled brings in most. That's the kind of finding that pays for itself many times over.

Give it a fair trial

Marketing needs time before its results mean anything, and this cuts both ways. Judge it too soon and you'll kill things that were about to work and keep things that got lucky once. A single good month proves nothing. A single bad one proves nothing either. You're looking for trends over a sensible stretch - a quarter, say - not the result of any particular week.

The other trap is changing five things at once and then having no idea which of them made the difference. If you launch a new advert, redo the website and start posting daily all in the same fortnight, and enquiries go up, congratulations - but you've learned nothing you can repeat, because you can't tell which change did it. Where you can, move one lever at a time and watch what happens.

The awkward question

Every so often you have to ask yourself the genuinely awkward question : if I stopped doing this tomorrow, would anything change? For a surprising amount of marketing activity, the honest answer is no. The newsletter nobody reads, the platform nobody engages with, the directory listing that's never sent a single enquiry - these things sit on the to-do list for years purely because stopping them feels like giving up.

Being able to answer that question honestly is the whole point of measuring in the first place. It's not about generating tidy reports. It's about knowing, with some confidence, which of the things you do actually bring in business - so you can do more of those and quietly stop wasting time and money on the rest.

None of this requires a data science degree. It requires deciding that "we're busy" isn't good enough as an answer, picking a handful of numbers that genuinely matter, and paying attention to them over time. Do that and marketing stops being an act of faith. If you'd like help working out which numbers are worth watching for your business, that's a conversation we'd be glad to have.

Key Takeaways

What numbers should I actually be tracking to know if my marketing is working?

The numbers that matter are the ones connected to money — how many enquiries came in, how many of those turned into customers, and what each of those customers was worth. Everything else, like follower counts, likes, and reach, is only meaningful if it can be shown to move those figures.

How can I find out where my customers are coming from without expensive software?

A simple and highly effective method is having a member of staff ask 'can I ask how you heard about us?' and writing the answer down consistently. Do that for three months and clear patterns will emerge — often revealing that what you spend most on brings in least, and vice versa.

How long should I give a marketing effort before judging whether it's working?

A single good or bad month proves nothing — you should look for trends over a sensible stretch, such as a quarter. Judging too soon risks killing something that was about to work, or keeping something that simply got lucky once.