BigCommerce SEO Checklist 2026: 12 Common Issues Found in Every Audit

BigCommerce is one of the most SEO-friendly ecommerce platforms on the market. It generates clean URLs, handles sitemaps automatically, and gives you control over meta tags out of the box. But "SEO-friendly" doesn't mean "SEO-complete." In practice, BigCommerce stores share a predictable set of issues that consistently hurt rankings and conversion.

Here are the 12 issues we find in almost every BigCommerce audit — and what to do about each one.

1. Duplicate content from faceted navigation

BigCommerce generates filter URLs like /category/shoes?color=blue&size=10. Each combination creates a unique URL that Google can index — multiplying your product pages exponentially with thin, duplicate content. The fix: add noindex to filtered pages or use canonical tags pointing to the base category URL.

2. Missing product schema markup

Google uses Product schema to generate rich results with price, availability, and ratings directly in search. BigCommerce doesn't add this automatically on most themes. Without it, you're showing a plain blue link while competitors get enhanced listings with star ratings and pricing. Rich results consistently drive higher click-through rates.

3. Large, unoptimized product images

BigCommerce allows image uploads up to 8MB. Many store owners upload high-resolution photos directly from cameras or design software without optimization. The platform resizes images for display but doesn't compress them properly. The result: product pages loading 2-4MB of images that could be 200-400KB with proper compression.

4. Thin category page content

Most BigCommerce category pages have a name, a filter panel, and a product grid — no description, no context, no content for search engines to evaluate. Google needs textual content to understand what a page is about. Adding even 100-150 words of genuine category description significantly improves ranking potential.

5. Slow third-party scripts on every page

Chat widgets, loyalty program trackers, review widgets, and marketing pixels all add JavaScript that runs on every page. Each script adds load time. We regularly see BigCommerce stores loading 15-20 third-party scripts — adding 1-3 seconds to Time to First Byte. Audit your scripts quarterly and remove any that aren't actively contributing to revenue.

6. Missing or misconfigured canonical tags

BigCommerce adds canonical tags automatically, but they can be misconfigured when products appear in multiple categories. A product at /shoes/running/nike-pegasus/ and /sale/nike-pegasus/ needs a consistent canonical tag pointing to one authoritative URL. Without it, Google splits ranking signals between both versions.

7. Robots.txt blocking important sections

BigCommerce's default robots.txt disallows several paths. Most are appropriate, but some stores accidentally add rules that block product or category pages from being indexed. Run a robots.txt audit anytime you make significant site changes.

8. Missing alt text on product images

The average BigCommerce store we scan has alt text missing on 40-60% of product images. This hurts accessibility (screen readers can't describe the image) and SEO (Google uses alt text to understand image content). BigCommerce makes it easy to add alt text to product images during upload — most store owners just skip it.

9. No HSTS security header

BigCommerce supports HTTPS, but many stores don't have HSTS (HTTP Strict Transport Security) configured. HSTS tells browsers to always use HTTPS — even if someone types http:// in the URL bar. Without it, the initial HTTP request can be intercepted before the redirect. For an ecommerce store handling customer data, HSTS is a baseline security requirement.

10. Broken links in legacy product references

Every time you discontinue a product, rename a category, or restructure your navigation, you create potential broken links. Blogs, product descriptions, homepage banners, and email campaigns may all reference old URLs. A quarterly link audit catches these before they accumulate into a crawl health problem.

11. Missing XML sitemap submission

BigCommerce generates a sitemap automatically. Many store owners never submit it to Google Search Console. Without an explicit sitemap submission, Googlebot has to discover your pages through crawling alone — which takes longer and may miss some pages entirely, especially newer products and categories.

12. No content security policy header

Content Security Policy (CSP) restricts what resources can load on your pages — preventing cross-site scripting attacks. BigCommerce doesn't configure CSP by default, and adding it requires custom work. But for ecommerce stores handling payment flows, CSP is an important security layer that protects both you and your customers.

How to audit your BigCommerce store

Manually checking 12 issue categories across hundreds of product and category pages isn't practical. StoreVitals scans your BigCommerce store automatically — checking all 20 health categories in about 60 seconds and giving you a prioritized fix list. Run a free scan here and see where your store stands today.