About this marketing blog…

My name Is Matt and I am a huge marketing nerd. My marketing blog is about providing practical marketing advice & tips you can apply to your business and campaigns today.

Feel free to get in touch or just say hello.

Banner size guide [2020 edition]

Save time and money focusing on the best performing banner ad sizes

When it comes to display/banner advertising, size does matter!

With the rise of mobile, apps and responsive design, banner ads now come in all shapes and sizes, but the reality is only a handful are worth designing for.

Most websites and apps run a limited range to choose from, and they all tend to be from the same banner sizes.

Choosing the wrong banner sizes can cost you money through wasted design effort and/or placement costs if you are paying on a CPM basis.

So, which are the best web banner sizes to design for?

Banner sizes and dimensions

Standard banner sizes list

If you are planning your display campaigns and briefing/building your banners, here are the key banner dimensions you should include.

What are the most common banner ad size on websites:

Most lists of this type still focus on desktop sizes, but that is a decreasing percentage of internet traffic.

Mobile users now make up 63% of all traffic in the UK, so it is vital you include mobile optimised sized in your banners.

What are mobile banner sizes

How effective is banner advertising?

For me, traditional prospecting display/banner advertising should be used as a branding and awareness tool, and only considered if you have a large budget or the ability to track post-impression conversions.

However, when combined with effective remarketing banners they become very effective and they can be used as a direct response marketing channel (i.e. judged on a CPA model).

Thanks to Google Ads, setting up and tracking a prospecting campaign’s post-impression performance is become increasingly easy for small businesses.

Additionally, their remarketing tools are a must if you have the traffic levels and a marketing acquisition budget.


Hello! My name is Matt and I have a serious passion for anything marketing related, both academically and professionally. I started writing this blog as a way of expressing my thoughts and opinions on marketing, and in response to the number of theoretical blogs out there that presume unlimited resources. My focus is on providing realistic and practical marketing advice you can apply to any business and campaign.

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