Device Breakdown
Device Breakdown splits all your Search Console performance into three buckets — mobile, desktop and tablet — and lets you see how each device class contributes to clicks, impressions, CTR and average position. The way Google ranks and renders pages is increasingly device-specific (mobile-first indexing, distinct Core Web Vitals targets, SERP layouts that differ by form factor), and this report is where those differences become visible. Use it whenever a top-line trend looks confusing — a device split almost always explains it.
What it measures
- Device — mobile, desktop, tablet.
- Clicks / Impressions — totals over the selected window for each device.
- CTR — clicks ÷ impressions, computed at display time so it reflects the full window rather than an average of daily CTRs.
- Average position — impression-weighted, so it answers "on the typical impression on this device, what position were we?".
- Period-over-period delta when a comparison range is selected, for every metric on every device.
How we compute it
- For the selected window, we read your Search Console daily performance broken out by device.
- We aggregate clicks and impressions per device, recompute CTR as a window total, and compute the impression-weighted average position per device.
- If a comparison range is selected, the same calculation runs against the previous window of equal length and is shown alongside as a delta.
Scenarios you'll see
Mobile contributes 60–80% of impressions on consumer / informational sites. If your mobile share is materially below the norm for your sector, audit mobile UX and Core Web Vitals — Google may be ranking you lower on phones.
Tools, dashboards, technical docs and B2B SaaS often see desktop clicks > mobile clicks even though impressions follow the opposite split. CTR will be much higher on desktop — that's healthy intent matching, not a problem.
Desktop position holds steady; mobile position degrades. Likely culprits: a recent mobile layout change, slow mobile LCP, intrusive interstitials, or a mobile-specific Core Web Vitals failure. Cross-check the PSI report.
Desktop CTR meaningfully higher than mobile at the same average position. Often explained by SERP density: mobile shows more SERP features (PAA, AI overviews, ads) above your link than desktop does for the same query mix.
Tablet is almost always the smallest bucket — usually 1–4% of clicks. Treat it as informational only; don't over-engineer for tablet unless your product is genuinely tablet-first.
A clicks spike that lives entirely on mobile typically traces back to a social referral re-introducing the page to Google's freshness loop, or a viral search trend. Use Top Pages + Anomalies Snapshot to confirm.
What to do with it
- Always read this report alongside Traffic Trend — most "mystery" trends in Traffic Trend are explained by one device class moving in a different direction.
- If mobile and desktop diverge in either CTR or position, prioritise the mobile experience — Google indexes the mobile rendering of your page first.
- For ecommerce / consumer sites, use mobile share of clicks as a leading indicator of brand and discovery health; it should be growing or stable, not declining.
- Pair this report with the PSI report to confirm whether device-specific position shifts have a Core Web Vitals root cause.
Caveats & limits
- Search Console classifies tablets separately from mobile; iPads in particular sometimes drift between buckets after OS updates.
- Mobile and desktop have different SERP layouts and feature densities, so position numbers are not directly comparable across devices — they're internally comparable to each device's own history.
- The split is what Google reports; we don't enrich it with user-agent parsing.
Related reports
- Traffic Trend — overall trend; pair with this report to localise changes.
- Country Breakdown — sister report that splits the same totals by geography.
- PSI / Core Web Vitals — to investigate device-specific performance regressions.
- Anomalies Snapshot — when a device-specific spike or dip needs root-causing.