Catalog and platform
Ask for an example of how the team handles filters, variants, out-of-stock products and category structure on your platform.
Buyer comparison
How to compare ecommerce SEO agencies
An online store needs more than category rankings. Ask each agency how it will work with your catalog, platform and developer, and how it will connect organic search to orders.
Disclosure: Passieon publishes this page and is included as one option. The list is a starting point, with no paid placement or ranking.
Written by Hamza Rivera. Last reviewed
Hamza works in SEO and GEO/AEO. He writes the Passieon guides and checklists and does the SEO work for the businesses Passieon serves.
Short answer: The right ecommerce SEO agency can explain its plan for product and category pages, faceted URLs, technical fixes and sales measurement on your platform. Compare a few providers against the same store-specific brief before choosing.
What to compare before you choose
Implementation
Find out who writes developer tickets, checks changes after release and owns the product feed or structured data work.
Business measurement
Ask how organic orders, revenue and assisted sales will be reported alongside search visibility.
Options worth comparing
These summaries come from each provider's own public pages, read November 9, 2026. They describe stated services, not independently verified results. The list is selective and unranked.
Ecommerce specialist
OuterBox
OuterBox describes a combined SEO, content, development, conversion and analytics practice for online stores. Its ecommerce service page goes into catalog architecture, filters, variants and developer tickets. It is worth considering when a large catalog needs technical and merchandising work coordinated with a development team.
Broad ecommerce agency
Coalition Technologies
Coalition Technologies lists ecommerce SEO alongside content, conversion work and support for Shopify, BigCommerce, WooCommerce, Magento and custom stores. It presents a broad marketing and development scope. Ask which part of that scope your store needs and who will implement the technical changes.
SEO and paid media agency
SmartSites
SmartSites has a dedicated ecommerce SEO service and offers paid advertising and site work alongside organic search. It may suit a store that wants one team to review several acquisition channels. Ask for a platform-specific plan and the reporting that ties organic visits to orders.
Independent SEO agency
Passieon
Passieon works on ecommerce SEO, including technical audits, category and product pages, and search visibility tied to sales. Our service page explains the scope we discuss with each store. We publish this comparison, so judge our proposal against the same catalog and measurement questions as every other agency.
How to make the shortlist useful
Give each agency the same store URL, platform, product count and business goal. A useful reply names the pages and technical issues it would inspect before proposing ongoing work.
Read more about ecommerce seo services, or book a call to review your site and market.
Book a call with us
A 30-minute call in your working hours. Tell us what you sell and where, and we will tell you what we would do first and what it involves. Prefer email? Send your website through the form and the Passieon Team will reply by email.