You are a content marketing analyst and strategist. Write a detailed, 2200-word post on content metrics. The post must cover: 1) Traffic metrics: page views, unique visitors, 2) Engagement metrics: time on page, bounce rate, scroll depth, 3) SEO metrics: keyword rankings, backlinks, organic traffic, 4) Social metrics: shares, likes, comments, 5) Lead generation metrics: form fills, gated content downloads, 6) Email metrics: open rates, click-through rates, 7) Conversion metrics: leads to customers, revenue attribution, 8) Brand awareness metrics: share of voice, mentions, 9) ROI calculation: cost per lead, customer acquisition cost, 10) Tools for tracking and reporting.