Case studies · E-commerce · Representative example

An e-commerce catalog of 9,800 product pages audited weekly without melting the team.

A direct-to-consumer e-commerce team owns 9,800 product pages across a single domain. Wrendex runs a continuous audit across the full catalog and a daily digest for the SEO lead; the team uses the regression diff to triage which week's deploy broke which canonicals.

Customer Retail Co. · Recommended plan Agency · Published 2026-04-29
This page is a representative case study. Customer name, logo, and quote are confidential placeholders, clearly labeled below. The technical narrative (which checks fired, what the numbers were) is built on real catalog checks and realistic numbers from the kind of audit Wrendex actually runs. We do not fabricate customer outcomes; we replace these placeholders with real, written-permission copy before public launch.
Sec. CS.02 · At a glance ◊The shape of the engagement 4 metrics · first six weeks
M.01
Catalog pages under audit
9,800 product detail pages plus approx. 240 category pages.
M.02
Issues surfaced first week
412 across the catalog; 58 error severity, 178 warning, 176 info.
M.03
Pages with broken canonical
104 product pages were canonicalising at a stale /products/old-id/ path.
M.04
Pages noindexed by accident
27 product pages from a now-superseded collection were silently noindexed; surfaced inside the first audit window.
Sec. CS.03 · The problem ◊What the team was up against before Wrendex

The team had been auditing the catalog manually with a desktop tool every six weeks. Each run took the better part of a day to crawl, longer to triage. Canonical mistakes from a category-routing refactor cost an estimated low-three-digit pages of organic visibility before the next manual audit caught them.

Sec. CS.04 · Audit scope ◊How Wrendex was set up 4 setup choices
  • All 170+ Wrendex checks across the full product catalog and category pages.
  • Continuous cadence on Agency tier with a per-deploy correlated audit run.
  • Slack digest daily; per-error-severity alert immediate.
  • Per-collection tagging so the SEO lead can filter issues by collection or by deploy.
Sec. CS.05 · Checks that fired ◊What the audit caught 4 highlighted catalog checks
C.01 · canonical-points-to-4xx
Canonical points to a 4xx
104 product pages canonicalising at /products/old-id/ from before the URL refactor. Search-Console impressions had been declining for those pages two weeks before the audit caught the canonical.
C.02 · noindex-meta
Noindex meta on a page that should be indexed
27 product pages from a discontinued collection inherited noindex via a template fall-through. Caught inside the first continuous audit.
C.03 · duplicate-tracker
Duplicate analytics tracker
A second GTM container loaded on category pages only after a tag-manager change. Inflated session counts about 18 percent on category pages until removed.
C.04 · title-duplicate
Duplicate title across pagination
Approx. 240 paginated category pages all shared the first-page title until a template fix landed.
Sec. CS.06 · Scoreboard impact ◊Where the health score moved 3 measurements
S.01
Catalog health score
From 68 to 84 over six weeks after the canonical, noindex, and duplicate-title fixes shipped.
S.02
Pages flagged error severity
From 58 to 9 in the same window. Remaining nine are queued behind a templating refactor.
S.03
Organic impressions on previously-noindexed pages
Recovered to pre-incident levels approx. four weeks after the noindex fix per Search Console.
Sec. CS.07 · In their words ◊Customer quote placeholder · real quote pending written permission
[Customer quote placeholder - confidential, replace before public launch with a real, written-permission quote from the e-commerce SEO lead.]

[Name redacted], SEO Lead at the placeholder retailer

Sec. CS.08 · Outcome ◊Where the team is now six weeks in

The team retired the manual every-six-weeks audit, cut Wrendex into the deploy correlation pipeline, and uses the per-collection rollup as the weekly SEO-stand-up document. Issue counts trending down week over week.

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