Hiring an seo agency ecommerce work can actually be trusted to is a different exercise from hiring general SEO help, because ecommerce sites fail in ecommerce-specific ways: thousands of near-duplicate product pages, faceted navigation spawning infinite crawlable URLs, category pages with no content to rank, out-of-stock handling that leaks accumulated equity, and platform quirks that a generalist meets for the first time on your invoice. The agencies worth shortlisting have scars from these exact problems on stores like yours, and they report in the only currency that matters for a store: organic revenue, not traffic. This guide covers what ecommerce SEO actually involves, what moves pricing, and the questions that expose an agency whose ecommerce experience is a slide in the deck rather than a history.
What ecommerce SEO actually involves
The technical layer dominates early: crawl control over faceted and filtered URLs, canonicalisation across variants, index management for thin and duplicate pages, site speed on templates that carry heavy scripts, and structured data so products qualify for rich results (price, availability, reviews in the listing itself). Google's documentation on structured data and page experience covers the standards; the craft is applying them across tens of thousands of URLs without breaking revenue pages. The content layer follows: category pages built to rank for the commercial queries that head your taxonomy, product descriptions that are not the manufacturer's boilerplate duplicated across every retailer, and guide content capturing buyers a step before purchase intent. The off-site layer (digital PR, retailer partnerships) matters most in competitive categories where technical parity is already assumed.
What moves the price
Catalogue size and platform set the baseline: auditing and fixing a fifty-thousand-SKU store on a heavily customised platform is a different project from tuning a five-hundred-product boutique on a standard theme. Competitive intensity sets the ceiling: ranking for broad commercial category terms against major retailers requires content and authority investment that niche categories never demand. Migration work is its own price tier, and worth paying well for: replatforming an ecommerce site without redirect and content-parity discipline is the single most reliable way to destroy years of accumulated rankings in one deploy. Expect serious ecommerce retainers to sit above generalist SEO pricing, get scope itemised by layer (technical, content, authority), and treat any quote issued before the agency has crawled your site as a template with your name on it.
Vetting questions that expose pretenders
Ask how they would handle faceted navigation on your platform, and expect specifics about crawl control, canonical strategy and which filter combinations deserve indexable pages: hesitation here is disqualifying, because faceted navigation is where ecommerce crawl budgets go to die. Ask how they handle discontinued products and out-of-stock pages, which every store faces monthly and which quietly bleeds equity when mishandled. Ask for named store clients with results stated in organic revenue and let them walk you through one campaign end to end. Ask what happens to rankings during your next replatform. Then confirm the engagement mechanics that apply to any agency: you own all content and data, terms are month-to-month after onboarding, and reporting ties organic performance to revenue in your analytics, not theirs. Stores that shortlist this way tend to end up choosing between a small number of genuine specialists, which is exactly the position a buyer wants to hire an SEO agency from.
Questions people ask about seo agency ecommerce
How much does ecommerce SEO cost?
Above generalist SEO for equivalent effort: catalogue scale and platform complexity add real work. Small stores can find competent help in the low four figures monthly; large catalogues in competitive categories cost multiples of that. Insist on scope itemised by technical, content and authority work.
Which matters more for a store: SEO or paid ads?
Ads produce revenue this week at a margin that never improves; organic compounds slowly and then keeps paying. Most healthy stores run both, using paid query data to find what converts before investing organic effort in it. The failure mode is funding only ads because they are legible.
Can our developer or generalist agency handle ecommerce SEO?
They can implement fixes a specialist scopes, and that split often works well. What generalists reliably miss is the ecommerce-specific judgment: faceted navigation, variant canonicalisation, out-of-stock policy. If nobody in the engagement has managed those on a store like yours, expect expensive learning.
How long until ecommerce SEO shows revenue?
Technical cleanups on an established store can show movement within weeks because existing equity gets unblocked. Building rankings for new category terms takes months. A fair agency forecasts by layer, and reports revenue impact from the first fix onward rather than asking for a year of faith.