Testing over 400,000 search terms to establish key trends in what drives conversions, high CTR and clicks in Google Ads.
Taking data from the last six months from Google Ads search campaigns that aim to drive phone calls and form fills from a landing page for a service led industry.
These search terms come from over 75 campaigns, spending small individual daily budgets to promote local services to individual locations. A lot of the data analysed made a lot of sense but still made for interesting reading.
Highest converting keywords
The top 50 converting keywords all contained the exact service name within them, usually followed by a location term. EG service:London.
Of the top 50 converting keywords, 48 were from exact or phrase match keyword types. General consensus from looking at all of these search terms were that broad match were the least valuable.
Note: We straight away could identify from this data that broad match keyword types were good for getting ads out there and keyword suggestions in, but they become redundant very quickly and for small budget, service campaigns, exact and phrase match brings in the conversion data.
Eight of the top ten performing keywords for conversions were exact match.
Highest CVR search terms
Just looking at top ten highest performing CVR, of those search terms that got any conversions, six included location terms, two of ten were actual rival brand search terms.
If no Google Ads are running for those rival brands, you could argue adding those search terms into your keyword list could have benefit, but with small daily budgets, its hard to commit to effectively bidding on customers that may already have interest in your rival brand and may just be searching for them.
Highest impressions
Highest impressions are not always a good measure of a search terms effectiveness. So tread with caution. One thing to note, 48 of the top 50 highest impression search terms contained the service name, in fact 95% of the top 100 search terms that had conversion data contained the service name, emphasising the importance of service inclusion within all keywords.
Excluded search terms
Many of the search terms analysed had been excluded at a campaign level. Of these keywords, eight of the top ten were broad match, so the opposite of the high conversion search terms. Some of the excluded terms did have very high conversion numbers, but the low quality broad search terms would have undoubtedly led to low quality leads further down the funnel.
Five of the top ten excluded search terms included free services, for example ‘private doctor’ ad groups receiving search terms like ‘nhs doctor’
This was probably more emphasis of some campaigns being in their infancy and not already having these search terms excluded.
Google Ad search term tips:
Overall, the key to success for these service lead search campaigns were including the service within the keyword at all costs. For example “chemist near me” “chemist with GP”, “New chemist open” etc.
Broad match keywords are not effective for high quality conversions. They can be important for building out a campaign and finding keywords if you are stuck for ideas in max clicks.
They should go no further than the first or second round of optimisation and should not feature when moving to max conversions.








