Share of Voice vs Share of Search: Which Matters More?
For years, communications teams have asked a familiar question at the end of a campaign: “How much coverage did we get compared with our competitors?”
This question gave rise to one of PR’s most enduring measurement metrics: Share of Voice. If your brand accounted for 25% of the relevant media conversation in its competitive set, while your nearest competitor accounted for 18%, you had a tangible result to include in your monthly report.
But there is another question worth asking: After all that visibility, did more people actually look for your brand?
That is where Share of Search enters the conversation. For CMOs and communications leaders trying to connect PR, reputation and marketing with audience behaviour, understanding the relationship between Share of Voice and Share of Search can provide a more complete picture of brand performance.
Share of Voice: Measuring Your Brand’s Visibility
In PR, Share of Voice measures how much of the relevant media conversation a brand commands compared with its competitors. It helps communications teams understand their relative visibility across a defined set of publications, media mentions or other relevant channels.
For example, if five competing brands collectively receive 1,000 relevant media mentions and 200 concern your brand, your Share of Voice is 20%.
This is a useful competitive measure, but it has an important limitation: not all media mentions are equally valuable.
A passing reference in an article is different from an in-depth CEO interview. Positive coverage is different from a controversy, and a specialist publication read by your target audience may be more valuable than dozens of mentions in irrelevant outlets.
AMEC’s measurement framework encourages communications teams to distinguish between outputs, audience responses and organisational outcomes rather than treating coverage volume as the final measure of success.
Share of Voice therefore helps answer one important question: How visible is our brand in the conversation?
However, it does not necessarily tell us whether audiences noticed the coverage, remembered the brand or took action as a result.
Share of Search: Measuring Brand Interest
Share of Search measures the proportion of branded search interest a company receives compared with the brands in its competitive set.
Suppose searches across four competing brands total 100,000 during a particular period, and your brand accounts for 30,000 of those searches. Your Share of Search would be 30%.
The metric has attracted attention through the work of effectiveness expert Les Binet and subsequent research associated with the Institute of Practitioners in Advertising (IPA). Research across multiple cases, categories and countries has found a strong relationship between Share of Search and Share of Market. However, correlation should not be confused with causation.
What makes Share of Search interesting is that it captures a different type of signal. Someone may have seen a news story, heard about a company, encountered an advertisement or received a recommendation and then decided to search for the brand.
That search suggests interest or curiosity, although it does not automatically indicate purchase intent.
For communications and marketing teams, Share of Search can therefore help reveal whether a brand is attracting attention beyond the immediate media cycle.
Share of Voice vs Share of Search: Key Differences
| Comparison | Share of Voice (SOV) | Share of Search (SOS) |
|---|---|---|
| What it measures | Brand visibility in relevant media coverage | Branded search interest relative to competitors |
| Main question | How much of the conversation are we capturing? | How often are people searching for our brand? |
| Data sources | Media monitoring and coverage analysis | Google Trends or other branded search data |
| What it indicates | Relative media visibility | Relative brand interest |
| Key limitation | High coverage does not guarantee positive sentiment or audience impact | Search interest does not automatically indicate purchase intent |
| How PR teams use it | Evaluate media presence and competitive visibility | Observe changes in brand interest alongside communications activity |
This table makes the distinction easy to understand, improves scannability and helps readers who are looking for a quick answer.
Share of Voice vs Share of Search: What If Your Competitor Has More Coverage but Fewer Searches?
Consider two competing brands.
Brand A has a Share of Voice of 35%, while Brand B has 20%. However, Brand B has a significantly higher Share of Search.
Which brand is performing better?
The immediate communications answer might be Brand A because it commands a larger share of media coverage. The commercial answer is less straightforward.
Brand A may be generating substantial coverage that does not translate into strong audience interest. Brand B, on the other hand, may have announced an important product launch, secured a memorable CEO interview or run a campaign that encouraged more people to find out about the company. It is also possible that Brand B already has stronger brand awareness or that other marketing activities are driving its search interest.
The numbers alone cannot explain the difference. However, examining both metrics together gives communications and marketing teams a useful starting point for further investigation.
For example, a brand with high Share of Voice but relatively low Share of Search may need to examine the relevance, prominence and messaging of its coverage. A brand with rising Share of Search but lower Share of Voice may be generating interest through other channels or building a stronger connection with its target audience.
The objective is not to declare one metric the winner. It is to understand what the relationship between the two reveals about brand visibility and interest.
How PR Can Influence Share of Search
Earned media can contribute to the awareness and curiosity that lead people to search for a brand. However, its contribution should be assessed alongside other marketing and communications activities.
Imagine a company announcing a significant overseas expansion. The announcement is distributed to relevant media outlets, journalists consider the development, and business publications report the story. The company’s Share of Voice increases as the announcement gains coverage.
The next step is to examine what happens after that visibility.
Do branded searches increase during or after the campaign? Does direct website traffic change? Do people search for the CEO or the company’s products? Are visitors exploring product pages, company information or investor resources? Does branded search interest remain elevated after the immediate media cycle?
These questions help communications teams move beyond counting coverage towards understanding the audience behaviour that may follow it.
A rise in branded search does not automatically prove that PR caused the increase. Advertising, social media, word of mouth, product launches and existing brand strength can all influence search behaviour. Nevertheless, comparing media activity with search trends and website analytics can help identify useful patterns.
The objective is not to claim credit for every search. It is to understand what happens after the brand becomes more visible.
Press Release Distribution: Looking Beyond Media Pickups
Press release distribution is often evaluated through the number of publications carrying an announcement, estimated reach and online visibility. These remain useful measures, but they do not tell the complete story.
Consider a significant corporate announcement distributed across relevant news and information platforms.
Instead of stopping at the number of online pickups, communications teams can examine whether branded search interest changed during and after distribution.
They can also investigate whether searches increased in the geography targeted by the announcement, whether people searched for the featured product or executive, and whether referral traffic, direct traffic or engagement with relevant website pages changed.
Another useful question is whether the company’s Share of Search moved relative to its competitors during the same period.
This approach places press release distribution within a wider communications journey:
Media visibility → Discovery → Curiosity → Search → Engagement → Potential business outcome
Not every campaign will produce a measurable change at every stage, particularly for smaller brands and niche B2B companies. The purpose of this framework is to ask better questions, evaluate available evidence and understand where communications may be contributing to business objectives.
For organisations using press release distribution in India or international markets, comparing results across campaigns and geographies can also help identify which announcements and audiences appear to generate stronger interest.
Don’t Replace One Vanity Metric With Another
Marketing teams are often quick to discover a new metric and declare that everything should now be measured through it. Share of Search should not become another example of this.
It is not a replacement for Share of Voice, nor should either metric replace sentiment analysis, message penetration, website engagement, reputation research, qualified enquiries or business performance.
Share of Search also requires careful interpretation. Search data sources differ in how they measure and present interest. For example, Google Trends reports relative search interest rather than absolute search volume. As a result, Share of Search calculated using such data should be treated as a directional indicator, with the methodology applied consistently over time.
Similarly, a brand can have a high Share of Voice for the wrong reasons, including a reputational crisis or negative publicity. High visibility does not necessarily mean strong reputation or positive audience response.
Context matters. The competitive set, quality of coverage, audience relevance, sentiment and wider market conditions all influence how these metrics should be interpreted.
So, Which Matters More: Share of Voice or Share of Search?
The answer is that neither metric is universally more important. They measure different aspects of brand performance.
Share of Voice asks, “Are people talking about us?”
Share of Search asks, “Are people looking for us?”
Share of Market asks, “Are people buying from us?”
Looking at the relationship between these measures can help communications and marketing teams build a more complete view of performance. Share of Voice provides a measure of relative visibility, Share of Search offers a signal of relative brand interest, and Share of Market helps assess commercial position.
A Chief Communications Officer (CCO) needs to understand the conversation and the reputation it creates. A Chief Marketing Officer (CMO) needs to understand demand and audience behaviour. The CEO ultimately needs to understand how these activities contribute to organisational objectives.
A modern communications dashboard should help connect these perspectives without assuming that one metric directly causes another.
Getting talked about is valuable. Getting remembered is better. And giving someone a reason to search for your brand may be an important step towards stronger engagement and commercial opportunity.
FAQs
What is Share of Voice in PR?
Share of Voice measures a brand’s presence in relevant media coverage or conversations compared with a defined set of competitors. It can be calculated using media mentions or other appropriate visibility measures. To understand its value, teams should also consider the sentiment, prominence and relevance of the coverage.
What is Share of Search?
Share of Search measures branded search interest relative to competitors. A basic calculation divides search interest for your brand by the combined search interest for all brands in the defined competitive set. The result depends on the data source and methodology used.
Is Share of Search better than Share of Voice?
Not necessarily. Share of Voice measures relative visibility, while Share of Search provides a signal of relative brand interest. Comparing the two over time can offer more insight than relying on either metric independently.
Can PR increase Share of Search?
PR can contribute to brand awareness and curiosity that may lead to branded searches. However, advertising, social media, word of mouth, product activity, existing brand strength and other factors can also affect search behaviour. Communications teams should therefore avoid attributing every change in Share of Search to PR alone.
Can press release distribution affect branded search?
A significant announcement that gains media visibility may encourage people to search for the company, product or executives involved. Brands can examine search trends, referral traffic and website analytics around important announcements to identify possible relationships, while recognising that these measures do not establish causation on their own.
How should CMOs and CCOs use Share of Voice and Share of Search?
Track both metrics against a clearly defined competitor set and observe how they change over time. Combine them with media quality, sentiment, website engagement, brand research, qualified leads and relevant business outcomes. This provides a broader view of communications performance than either metric can offer independently.
