Shopify SEO work has more moving parts than most merchants realize. Work through these five steps before you request quotes.
Scope the SEO problem you actually need to solve. "Improve my SEO" produces vague quotes. "Fix collection page indexation across 800 tag pages" or "Rebuild schema markup after my theme switch broke rich snippets" produces comparable quotes. A short audit ($300-$1,500) before hiring for a retainer is almost always worth the cost.
Decide between a freelancer, an agency, or an app service. Freelance Shopify SEO consultants ($65-$500/hour) fit stores under $2M annual revenue and specific-project work. Agencies ($2,500-$15,000/month) fit stores $2M+ where SEO is a full workstream with content production, technical fixes, and reporting layered together. App services fit stores that want a defined output (like a schema audit or a Core Web Vitals fix) at a fixed price.
Check Shopify-specific SEO experience, not general SEO experience. A senior SEO consultant who has never worked on Shopify will spend the first month learning Liquid, Shopify Markets, and app behavior. Ask specifically for past Shopify projects and check the case studies — many "Shopify SEO experts" actually specialize in WooCommerce or WordPress.
Review real ranking and revenue case studies. "We improved SEO" is not a case study. "We increased organic revenue by 255% in one month for a mid-market brand" is. Ask specifically for before-and-after screenshots from Google Search Console, not just Ahrefs or Semrush estimates.
Compare quotes with fixed deliverables, not vague retainers. Good Shopify SEO retainers list what gets delivered each month — audit findings, content pieces, technical fixes, links pursued. If the quote is "monthly SEO work" with no deliverable list, the expert is either senior enough to be worth it (rare) or vague enough to be avoidable (common).