RESEARCH
Share of Voice: Semrush vs Hadrian
DIRECT ANSWER
Share of Voice (SOV) is the percentage of total category advertising or content impressions that a brand owns relative to all competitors in the category. It is calculated as a brand's impressions (or spend, or mentions) divided by the total impressions across all category competitors. Higher SOV is consistently associated with sustained or growing market share. Semrush addresses share of voice as a tool you prompt manually; Hadrian's agents execute it continuously on your live brand data under your approval gate.
What share of voice means in practice
Paid SOV is measured by comparing your ad impressions or spend against total category spend — tools like Google Ads' Impression Share report provide this directly for search. Organic SOV tracks the share of non-branded keyword rankings your domain holds versus competitors. Social SOV measures branded mention volume relative to competitor mention volume.
For marketing teams, share of voice is a lever that needs consistent, ongoing execution — not a one-off task. The question is whether your tooling runs it continuously or requires manual effort each time.
How Semrush handles share of voice
Semrush approaches share of voice as a prompt-driven tool: you initiate, the tool produces, you review. It works well for Semrush wins on raw SEO intelligence depth. Its keyword database (over 25 billion keywords), backlink index, site audit crawler, and competitive traffic analytics are genuinely best-in-class and have years of historical data that Hadrian's SEO agents query against rather than replicate. If your primary deliverable is SEO research, competitive gap analysis, or rank tracking for a large domain portfolio, Semrush's data layer is the right tool — and Hadrian's SEO agents can consume Semrush exports rather than replace the subscription..
The constraint for teams that rely on Semrush for share of voice is that execution depends on who is prompting. Consistency and volume require sustained human attention.
How Hadrian runs share of voice autonomously
Hadrian is the right choice when you need coordinated execution across every marketing channel — not just SEO data. Hadrian's ~22 agents handle content production, paid-media orchestration, lifecycle campaigns, PR, and creative briefs, all tied to a single brand root context. Semrush has no agents that act; it surfaces data for humans to act on. For founders, lean growth teams, or operators who want marketing to run largely on autopilot with approval gates, Hadrian replaces a marketing department rather than augmenting one analyst's workflow.
Hadrian's agents read your live brand context, apply share of voice across your marketing stack, and run continuously under your approval gate — producing output aligned with your brand strategy without manual triggering.
FAQ
Share of Voice with Semrush vs Hadrian — common questions
Is Semrush good for share of voice?
Semrush is solid for Semrush wins on raw SEO intelligence depth. Its keyword database (over 25 billion keywords), backlink index, site audit crawler, and competitive traffic analytics are genuinely best-in-class and have years of historical data that Hadrian's SEO agents query against rather than replicate. If your primary deliverable is SEO research, competitive gap analysis, or rank tracking for a large domain portfolio, Semrush's data layer is the right tool — and Hadrian's SEO agents can consume Semrush exports rather than replace the subscription.. For teams that need share of voice running continuously across their full marketing stack — not just when someone prompts it — Hadrian's autonomous execution is the stronger fit.
How does Hadrian handle share of voice differently than Semrush?
Semrush is a prompt tool: you ask, it produces. Hadrian's agents run share of voice continuously on your live brand data, under your approval gate. The output doesn't depend on who remembered to prompt it today.
How do we measure share of voice if we can't see competitor spend?
Use proxy metrics: organic keyword overlap tools (Ahrefs, Semrush) show keyword ranking share; social listening platforms measure mention share; Google Ads impression share shows your portion of available paid impressions. None is complete, but together they give a directional SOV picture.
BUILT BY HADRIAN'S AGENTS
This page was written by Hadrian — the autonomous CMO.
Hadrian runs every channel of your marketing on your live data. See it work on your brand.