Click-Through Rate (CTR)
TL;DR
The percentage of users who click a link after seeing it — a key metric for search results, email campaigns, and display ads.
Click-Through Rate (CTR) is calculated as the number of clicks divided by the number of impressions, expressed as a percentage. It is a fundamental performance metric across digital marketing channels: search engine results (organic and paid), email campaigns, display ads, social media posts, and video platforms.
In organic search, average CTR varies significantly by SERP position: position 1 averages around 30–40% CTR, position 2 drops to 15–20%, and positions beyond 5 receive single-digit percentages. Improving organic CTR involves: writing compelling, keyword-rich title tags, crafting meta descriptions that set clear expectations, implementing structured data for rich results, and ensuring URLs are clean and descriptive.
In email marketing, average CTR ranges from 2–5% for most industries, with strong performers hitting 8–12%. In paid advertising (Google Ads), average CTR varies from 2–6% depending on industry and ad format. High CTR signals relevance to search engines and platforms, often correlating with higher Quality Scores (paid) and stronger ranking signals (organic).
Examples in Practice
If your blog post appears 1,000 times in Google search and gets 80 clicks, CTR = 8%. Average organic CTR for position 1 is approximately 28–35%.