Agency insights
Thoughts and lessons on client selection, burnout, pricing, and modernising legacy accounts, from someone who's run a Google Ads for years.
Published April 2021. Last updated July 2026.
Edit: Published in May 2015.
“Make your website mobile friendly or we’re not going to show it when someone uses a mobile phone to search the internet." - Google, April 2015.
More than half of all internet activity happens on mobile phones. But does the important half of internet activity happen on mobile phones?
You don’t wander into an architects office and see her looking up insulation specifications on her iPhone. The maintenance foreman doesn't order a new distribution board on his Samsung.
Our architect might use her phone to clear her inbox on the train home. The foreman might update his status on his phone at lunchtime but they're still using their computers for most of the day.
In my context the important half of the internet is people looking for stuff my clients sell. I wanted to know how much of that was happening on mobile phones?
I’m lucky enough to have access to loads of data. We’ve found more than 600 000 sales prospects across a wide range of industries. Almost every one of those 600 000 people started out searching Google for something they wanted to buy. We know what they looked for, what advert they clicked and what they did once they landed on the website.
Most of my clients get a constant flow of one or two new sales enquiries every day. That works out to a couple of hundred potential new customers every year. Enough for comfortable stable growth.
Here are the numbers from some typical AdWords campaigns we manage. These are for the 30 days ending mid May 2015.
Hospitality industry selling to businesses.
Tourism campaigns are the exception because people travel with their phones.
Knowing which device is most popular helps us get the best possible value for their advertising budgets. We adjust the way we manage the campaign to favour the more important device. I won’t bore you with the details, most of it is common sense.
For instance if most people searching on mobile phones visit the site but don’t make an enquiry we aim more of the budget at people searching on their computers. But if more people are using mobile phones we make the website easier for them to use: shorter forms, click-to call phone numbers etc.
You can see the split between computers and mobiles in your own AdWords campaigns. Instructions are here.
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