Ask three agencies what ecommerce SEO costs and you will get $500, $3,000 and $12,000 a month for what sounds like the same work. The spread is real but it is not arbitrary — it tracks catalogue size, competition, and how much of the work is technical rather than content. The problem is that pricing pages rarely explain which of those you are paying for, which makes quotes almost impossible to compare. Here is what the numbers consist of and how to judge whether any of them make sense for your store.
The Realistic Ranges
For ongoing monthly ecommerce SEO in 2026:
| Tier | Monthly | Typical fit |
|---|---|---|
| Entry | $500–1,000 | Small catalogues, under ~500 SKUs, low competition |
| Mid | $1,000–3,000 | Growing stores, 500–5,000 SKUs, competitive niches |
| Advanced | $3,000–8,000 | Large catalogues, competitive markets, international |
| Enterprise | $8,000+ | 50,000+ SKUs, multi-market, in-house team augmentation |
One-off alternatives:
- Technical audit only: $1,500–7,500 depending on catalogue size
- Hourly consulting: $100–300 per hour
- Project-based — a migration or replatform: $5,000–30,000
As a concrete market reference, published ecommerce SEO packages from SiteMile run from $549 a month at entry level through $999 for a mid tier to $2,599 for enterprise work — with the tiers separated by keyword volume, number of product and collection pages optimised monthly, backlink volume, and whether technical extras like Core Web Vitals work, log file analysis and AI answer-engine optimisation are included. That structure is fairly representative of how the market prices this, and it is a useful benchmark when a quote arrives with no breakdown at all.
What Actually Drives the Price
Catalogue size. The dominant variable. Optimising 200 products is a different job from optimising 20,000. Ask how many product and collection pages are covered per month — a package doing 20 products a month will take five years to work through a 1,200-SKU store.
Platform. Shopify constrains what is technically possible, which cuts some work and blocks other fixes. WooCommerce and Magento allow deeper technical work and therefore more of it. Migrations are priced separately and are the most expensive single thing you can ask for.
Competition. Ranking a niche B2B parts store is not comparable to competing in supplements or fashion. Higher competition means more content and more link acquisition, which is where cost scales fastest.
Technical debt. A store with faceted navigation generating 400,000 crawlable URLs needs substantial work before content matters at all. Crawl waste from filters and pagination is the most common and most expensive problem in ecommerce SEO — see our guides to pagination SEO and robots.txt.
Content production. Category page copy, buying guides, and product description rewrites at scale. Frequently the largest line item and often quietly excluded from the headline price.
Link acquisition. The most variable and least transparent component. Ask specifically how links are earned.
What Should Be Included at Each Tier
Entry (~$500–1,000) should cover a technical audit, keyword research, on-page optimisation of a modest number of product and collection pages each month, schema markup for products and reviews, and basic reporting. Realistically this is maintenance and gradual improvement, not transformation.
Mid (~$1,000–3,000) adds meaningful content production, competitor analysis, link acquisition, Core Web Vitals work, and deeper technical fixes — crawl budget, canonicals, internal linking architecture. This is where most growing stores should sit.
Advanced ($3,000+) adds international SEO with hreflang, log file analysis, large-scale content programmes, CRO integration, and increasingly AI answer-engine work.
Across all tiers, confirm these are in scope:
- Product schema — Product, Offer, AggregateRating, Review
- Canonical handling for variants and filtered URLs — see “alternate page with proper canonical tag”
- Faceted navigation and crawl budget control
- Out-of-stock and discontinued product handling — a genuine ecommerce-specific problem covered in 410 vs 404 vs 301
- Category page optimisation, which is usually the highest-return work on an ecommerce site
- Site speed, since it affects both rankings and conversion
Working Out Whether It Pays
Do this before signing anything. You need four numbers:
- Realistic additional monthly organic sessions. Not the total search volume of your keywords — the share you might plausibly capture in year one.
- Your actual conversion rate. Use your data. Ecommerce typically runs 1–3%.
- Average order value.
- Gross margin, because revenue is not profit.
Then:
Sessions × conversion rate × AOV × margin = monthly gross profit from organic
A worked example. A store adds 4,000 organic sessions a month. At 2% that is 80 orders. At $85 AOV that is $6,800 revenue. At 40% margin that is $2,720 monthly gross profit against a $1,500 retainer. That works, and it compounds.
Change one input — drop AOV to $25 — and the same traffic produces $800 gross profit against the same $1,500. That does not work, and no amount of good SEO fixes it.
AOV and margin decide the answer more than traffic does. Low-AOV, low-margin stores need very large traffic volumes to justify meaningful retainers, which is why ecommerce SEO suits considered purchases better than commodity ones.
Also account for the timeline. Ecommerce SEO typically shows movement at three to six months and meaningful return at six to twelve. Our guide to whether SEO is worth it covers that arithmetic in more depth.
Red Flags in a Quote
Guaranteed rankings. Nobody can guarantee positions. A guarantee means either meaningless keywords or risky tactics — see white hat vs black hat SEO.
No specified deliverables. “SEO services — $2,000/mo” is not a scope. You should see numbers: pages optimised, keywords targeted, links acquired, reports delivered.
Links that disappear if you stop paying. Those are rented links, which means paid links, which is a link scheme.
No technical audit first. Any competent engagement starts by finding out what is broken.
Long lock-ins with no exit. Twelve months is common and reasonable given the timeline. Twenty-four months with no termination clause is not.
Vagueness about who does the work. Ask whether it is in-house or subcontracted, and to whom.
Cheaper Options That Are Genuinely Viable
Not every store should buy a retainer.
A one-off technical audit ($1,500–5,000) plus your own implementation often captures the largest share of available gains, particularly on a store that has never had technical SEO work.
Fix conversion first. Doubling conversion rate doubles SEO’s return without any extra traffic, and it is usually cheaper.
Do the fundamentals yourself. Category page copy, product titles, schema via an app, and an internal linking pass are all achievable in-house. Our on-page SEO checklist covers the per-page work, and WooCommerce vs Shopify covers how platform choice constrains what is possible.
Start with an audit, then decide. The findings tell you whether you need ongoing work or a one-off fix.
Price the Outcome, Not the Retainer
The useful question is not “what does ecommerce SEO cost” but “what does this store need, and does the arithmetic clear?” A $549 package on a 300-SKU niche store with $200 AOV can be excellent value. The same package on a 15,000-SKU catalogue in a competitive market is a rounding error against the work required.
Run your own numbers before you take a quote. If additional organic revenue at a realistic capture rate does not comfortably exceed the retainer within twelve months, either the tier is wrong or the channel is wrong — and knowing that in advance is worth more than any discount.
If you want that calculation run against your own catalogue and margins before committing to anything, our SEO services start with an audit and an honest assessment. Get in touch with the team at blogthememachine.com, and subscribe to our newsletter below for more practical guides.
