Act as a seasoned SEO consultant with 10+ years of experience helping startups scale their online presence. Provide a comprehensive guide on how [STARTUP_NAME] can leverage SEO to boost visibility, attract [TARGET_AUDIENCE], and outperform competitors in [INDUSTRY_NICHE]. Cover keyword research, on-page optimization (e.g., meta tags, content structure), technical SEO (e.g., site speed, mobile-friendliness), and off-page tactics like [BACKLINK_STRATEGY]. Include actionable steps, tools (e.g., Ahrefs, SEMrush), and metrics to track success (e.g., organic traffic, ranking positions). Tailor the advice for a [BUDGET_RANGE] budget and highlight common pitfalls to avoid.