Koozai > Blog > PPC Keyword Research: When & Why Do You Need It?

PPC Keyword Research: When & Why Do You Need It?

| 5 minutes to read

Keyword Research for AdWords PPCSetting up and maintaining strong, high performing AdWords campaigns takes time, budget and expertise. But without keyword research both at the beginning of the project and continually throughout, you will never get the best possible return on your investment.

Here’s what you need to know about keyword research at the different stages in your AdWords project and why it’s so critical to success.

Budgeting and Forecasting Average Cost per Click

First and foremost, without keyword research you cannot know how many clicks you can expect to get for your budget. As the average cost per click in AdWords varies dramatically from keyword-to-keyword and industry-to-industry, keyword research is the only way to estimate what your clicks might cost.

For example, if you are looking to run a campaign for a payday loans company and assume that your average cost per click will be similar to a campaign you created in the past for an estate agent website, your budgeting will be grossly miscalculated from the beginning without first researching the costs you can expect to pay in your industry. You might have paid around £1-3 a click in the past, but keyword research will show you that clicks on payday loans-related keywords could set you back £10-20 a click or even more.

Keyword Research for PayDay Loans

Keyword research is therefore essential even at this very early stage of a campaign. This will ensure that your expectations on cost are as reasonable as possible and give your campaigns the best chance to succeed.

Choose Keywords Designed To Achieve Campaign Goals

When you set up an AdWords search campaign, it’s important to think about what you want to achieve. When it comes to setting up ad groups and selecting keywords, you need to make sure they are relevant, specific and unambiguous.

Carrying out keyword research with your project goals in mind will allow you to select keywords that are more likely to deliver the results you’re looking for.

For example, if you are a tanning centre in London looking specifically to get online session bookings from your search campaign, you might initially think to target the keywords “spray tan” or “tanning booth”. With keyword research, you may find that there is a good amount of search volume for more qualified enquiries such as “book spray tan” or “spray tan in london”. If users search for these sorts of queries, they are more likely to be looking to make a booking and could be worth more per click to you than a user with a more ambiguous search such as “tanning booth”.

With comprehensive keyword research you can look to find relevant keywords that have a good amount of search volume, have a reasonable average cost per click, and are more likely to meet your campaign goals.

Find Keyword Varitaions That Could Increase ROI

If you do not carry out comprehensive keyword research before you launch an AdWords search campaign, the keywords you end up targeting are not likely to perform as well or deliver maximum ROI. This is because you do not know what keywords are being searched for or how much those keywords might cost per click.

For example, if you are a local taxi company setting up an AdWords search campaign, you might want to set up ad groups with keywords such as “book a taxi” and “taxi phone number”. But with proper keyword research, you might find that there are more search queries in your area for the search terms “taxi bookings” and “call a cab”, or that those keywords are much cheaper on average per click.

Google Keyword Planner Taxi Example

To get your campaign off to the best possible start, make sure you research the keywords you want to target and find as many potential alternatives that data suggests could provide positive ROI for your business.

Negative Keyword Research to Reduce Irrelevant Ad Exposure

The Search Query Report can be found in the Keywords tab of the AdWords interface and is one of the platform’s most useful reports. By using the Search Query Report you can see some of the search terms users have actually used to trigger your ad.

If your campaign only uses exact-match keywords and the setting to allow for misspellings and plurals is not ticked, you would only see your actual keywords in this report, shown as “Added”. However, as most campaigns will include phrase and/borad match keywords, as well as misspellings and plurals, this report can provide you with a wealth of information to help you refine your campaign further and conserve budget that might be being wasted on irrelevant search terms.

Search Query Report in Google AdWords

For example, if you are a fashion accessories retailer bidding on “leather wallets” on phrase match, you might expect to see terms like “leather wallets”, “luxury leather wallets” and “leather wallets for him” in your Search Query Report. However, what if you could also see that your ads were being triggered for “fake leather wallets” and “leather feed for leather wallets”, search queries not relevant to your ad or business?

Use the Search Query Report to find irrelevant queries to add to your campaign as negative keywords, stopping them from triggering ads in the future. In addition, look for relevant, high-performing search queries that are not currently set up as keywords. You can then add those in as positive keywords in their own ad groups with ads optimised specifically for them.

By using the Search Query Report regularly and reviewing the actual terms users search for that trigger your ads, you can help to ensure that budget is not wasted on irrelevant search queries that cost you when users click, but provide no value to your business.

Get Researching!

Hopefully that gives you enough reasons for you to ensure you carry out keyword research both before running and throughout an AdWords campaign.

Google’s Keyword Planner is one of the most useful tools for keyword research and will help you find out how many people are searching for your keywords and what you can expect to pay per click. The tool will even suggest more keywords that you might not have considered and help you build a strong, targeted campaign.

If you have any questions on keyword research or would like information on PPC management, please do not hesitate to get in touch.

Image Credits

Keywords Image via Bigstock

Responses

  1. Emma North avatar

    Thanks Jigs, there’s definitely a lot of elements needed to make PPC a valuable channel but keyword research is one important and often under-valued step.

  2. Jigs Camper avatar

    PPC alone will only offer limited results. With no brand awareness or value proposition, PPC campaigns may only attract window shoppers. Thank you for pointing the importance of keyword research for PPC this will be a big help to entrepreneurs.

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Sophie Roberts

Managing Director

Sophie Roberts is Managing Director and owner of Koozai, one of the UK’s longest-established digital marketing agencies. Having joined the business in 2016, she became Managing Director in February 2018 before leading a successful management buyout in 2021.

With more than 30 years of marketing experience, Sophie specialises in AI Search, Digital PR, marketing strategy, agency leadership and helping businesses adapt to the changing search landscape. She works closely with clients and Koozai’s specialist teams to develop commercially focused digital strategies that improve visibility, strengthen brand authority and deliver measurable business growth.

Over the course of her career, Sophie has worked with more than 200 organisations, ranging from ambitious SMEs to household brands including Golden Wonder, Airfix & Humbrol and Victorinox Swiss Army Knives. Since joining Koozai she has helped shape digital strategies for clients including Travelbag, Trevor Sorbie, Red Funnel and Côte Brasserie, building long-term partnerships that often span many years.

Although clients often approach Koozai for Technical SEO, PPC, Digital PR or AI Search support, Sophie’s approach has always been to understand the wider business challenge rather than simply deliver a marketing service. She believes the best client relationships come from treating every client’s business as if it were your own, combining commercial thinking with honest advice and a genuine investment in long-term success.

Sophie’s career began in public relations, where she led award-winning campaigns before moving into digital marketing. One of her earliest successes was the BBC’s Service! campaign, which won the Catey Award for Best Independent Marketing Campaign and helped raise the profile of front-of-house hospitality careers across the UK.

Since then, she has developed marketing strategies for organisations across hospitality, construction, travel, tourism, healthcare, education, retail, ecommerce, finance, automotive and manufacturing, giving her broad commercial experience across both B2B and B2C sectors.

More recently, Sophie has become one of Koozai’s leading voices on AI Search and the impact of generative AI on marketing. She has developed the agency’s AI prompt library, built custom GPTs and AI agents to improve internal efficiency, and created Koozai’s AI usage policy to help the business adopt AI responsibly and effectively. She is particularly interested in how AI is changing the way people discover brands, products and services, and what businesses need to do to remain visible as search continues to change.

Sophie regularly writes about AI Search, Digital PR, organic growth, marketing strategy, leadership and the practical application of AI in marketing. She also reviews and fact-checks Koozai’s AI Search and digital strategy content before publication, ensuring it is accurate, practical and reflects current best practice.

Alongside her agency work, Sophie has delivered webinars on SEO for the construction industry, spoken at digital marketing events across Hampshire, featured in Search With Sean Live and supported the hospitality industry through judging and organising prestigious awards, including the UK Sommelier of the Year and UK Restaurant Manager of the Year. She also served on the organising committee for the National Restaurateurs Dinner.

Her work has been recognised through both personal and agency awards, including the Catey Award for Best Independent Marketing Campaign and the Construction Marketing Award for Best Small Agency.

Sophie holds a BA (Hons) in Marketing & PR together with Google and HubSpot marketing certifications. She continues to explore how emerging technologies can improve marketing effectiveness while keeping people, creativity and commercial thinking at the heart of every strategy.

Her insights and commentary have been featured by publications including Moz, Sitebulb, Yahoo News, The Business Magazine, Hampshire Business News, Portsmouth News, The Daily Echo, Professional Electrician, The Caterer, Restaurant Online, HVP Magazine and many other industry publications.

Away from work, Sophie is a self-confessed foodie, proud geek and lifelong learner who believes every day should be a school day. She is passionate about creating positive workplace cultures, supporting work-life balance and helping people build careers they genuinely enjoy.

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