Site-wide organic click-through rate, charted over the selected period, so you can tell a snippet or SERP-layout change apart from a ranking change.
At a glance
A line chart of site-wide organic CTR (total clicks ÷ total impressions) for the selected period, drawn from the Google Search Console Search Analytics API. It is the one SEO metric that isolates persuasion from visibility: rankings and impressions can hold steady while CTR slides because Google added an AI Overview, a featured snippet stole the click, or your titles went stale. As an executive-overview, Supporting Metrics-tier card it is a primary input to the SEO sentiment score, so a sustained CTR slide nudges the connector amber even when clicks look flat.
Calculation
For each day in the selected period the card requests property-level totals from the Search Analytics API and computes:sum(clicks) ÷ sum(impressions), not the simple average of the daily CTRs. A naive mean of daily percentages over-weights low-traffic days and can drift a point or more from the true blended figure, so always trust the weighted headline over eyeballing the line.
Two structural effects move this line without any change to your pages. First, when Google reshapes the SERP (a new AI Overview, an expanded shopping pack, more ad slots), your blue link drops below the fold and CTR falls even though average position is unchanged. Second, mix shift: if a high-impression, low-CTR query (often near-branded or informational) surges, it dilutes site-wide CTR purely through arithmetic. Always segment with Branded vs Non-Branded before concluding your snippets got worse.
Worked example
A UK home-fragrance brand on Shopify, Search Console connected, property zone Europe/London. The team reviews CTR Trend on 22 Jun 26 for the trailing 28 days and sees the line slide from 4.1% to 3.2%.
Three observations the team drew from this:
- Rankings did not move, so this is not a ranking problem. Average position held between 7.7 and 7.9 across all four weeks; Average Position and Position Trend both stayed flat. A CTR slide with stable position is the textbook signature of a SERP-layout change or a query-mix shift, never a rankings loss.
- Impressions rose 18% while clicks fell 8%, so mix shift is the prime suspect. Segmenting with Branded vs Non-Branded showed branded CTR holding at 28%, but a cluster of new informational queries (“how to make a room smell nice”, “are reed diffusers safe for cats”) had flooded in at 0.6% CTR and 380,000 fresh impressions, arithmetically dragging the blended line down. The pages themselves were fine.
- A second, smaller effect was real snippet decay. CTR Opportunity Pages surfaced
/collections/reed-diffusersat position 4.2 with a 2.1% CTR against an expected ~7% for that band, a ~2,400-click-per-month gap traced to a generic, truncated title tag. After a benefit-led title rewrite, the blended line recovered to 3.6% within three weeks, the category page alone adding back ~1,900 clicks per month.
Sibling cards
Reconciling against the source
Where to look in Search Console:Performance → Search results, enable the Average CTR metric tile, set the date range to match the card’s window, and keep the search type on Web. The headline CTR above the chart should match the card’s weighted period figure within rounding.To validate the daily line, query the Search Analytics API with
dimensions: ["date"] and divide daily clicks by daily impressions yourself. The API is the source of truth and avoids the UI’s rounding.
Why the Vortex IQ value may legitimately differ from a manual Search Console check:
Cross-connector reconciliation:
This card is a direction indicator, not a diagnosis. It tells you reliably that site-wide CTR moved; the siblings above tell you whether the cause is snippet decay, SERP-feature encroachment, query-mix shift, or a real ranking loss.
Known limitations / FAQs
My CTR Trend is falling but my clicks are flat. Is that bad? Usually not. Flat clicks with falling CTR means impressions grew, you are now visible for more searches, and the new impressions simply convert to clicks at a lower rate (often broader or more informational terms). That is a visibility win showing up as a CTR “drop”. Confirm with Impressions Trend: if impressions rose roughly in proportion, there is nothing to fix. Only worry when CTR falls while impressions are flat or down. The last day or two on the chart looks low. Did something break? Almost certainly not. Search Console data is 2 to 3 days delayed and the most recent days are partial until Google finalises them. The tail of the line routinely dips and then recovers as the data settles. Judge the trend on days that are at least 3 days old. Why does the headline CTR not match the average of the daily points on the chart? Because the headline is impression-weighted (sum of clicks ÷ sum of impressions), while eyeballing the daily line averages the percentages equally regardless of each day’s traffic. The weighted figure is the correct one; a simple average over-weights quiet days. This is the same reason the Search Console UI headline can differ from a hand-averaged export.
Could an AI Overview or featured snippet be causing my CTR drop?
Yes, and it is one of the most common causes in 2026. When Google places an AI Overview, featured snippet, shopping pack or extra ad slots above your result, your average position can stay the same while your blue link sits further down the visible page, so fewer searchers click. Check Rich Results CTR and Search Appearance Types to see whether a search-appearance change lines up with the dip.
Is a higher CTR always better?
Not in isolation. A very high blended CTR is often just heavy branded traffic (people searching your name click almost every time). If branded queries grow as a share of impressions, blended CTR rises without any improvement to your non-branded snippets. Always split with Branded vs Non-Branded before celebrating or panicking.
Does this card alert me when CTR drops?
This card has no hard alert of its own; it is a Supporting Metrics-tier trend that feeds the SEO sentiment score, so a sustained slide will tint the connector amber. For actionable, page-level CTR follow-up use CTR Opportunity Pages, and for ranking-driven drops use Ranking-Drop Alert.