Character limits govern every digital communication channel. Twitter/X: 280 chars. Meta description: 155 chars. Page title: 60 chars. Instagram bio: 150 chars. Email subject: 40-50 chars for mobile. Our counter tracks all three SEO-critical limits simultaneously. Going over title and description limits causes truncation in SERPs, hiding your call-to-action. Words-per-sentence analysis helps improve readability and Flesch-Kincaid scores.