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SEO audits by industry › Marketplaces

Technical SEO audits for marketplaces

Multi-vendor marketplaces have catalog sizes that push every templated SEO assumption to its breaking point. Faceted navigation generates millions of URLs, vendor onboarding spawns near-duplicate listings, and a single canonical bug can deindex a quarter of the catalog. Wrendex audits at marketplace scale.

All 140+ checks run on every audit. Free audit, no credit card.

Issues that frequently surface on marketplaces

6 common patterns from real audits.

Faceted navigation generates millions of URLs

Every filter combination is crawlable, and most variants are noindex-worthy duplicates of the parent. Without an explicit canonical and disallow strategy, crawl budget gets exhausted on permutations.

Vendor onboarding creates duplicate listings

Two vendors selling the same SKU produce two near-identical product pages with different URLs. Without a canonical pointing to the buyer-preferred version, they compete in the SERP and split impressions.

Search-results pages get indexed

Internal search results (/search?q=...) are crawlable and indexed, accumulating thousands of thin pages that erode the perceived quality of the host.

Pagination canonicalizes to page 1

Pages 2-N of category listings canonical to page 1, dropping the long-tail items from the index entirely.

Out-of-stock vendor variants linger as 200s

When a vendor pulls inventory, the listing URL stays 200 with a "check back later" body. Search engines treat it as a soft-404 across the whole host.

Multiple analytics scripts per page

Marketplace pages frequently load three or four overlapping trackers (host, parent company, vendor pixel, retargeter) and double-count pageviews on every PDP.

Wrendex catalog checks that fire on marketplaces

9 checks, 4 linked. Linked checks open the full catalog entry: what it is, why it matters, how to fix it. The rest are industry-specific checks fired during the audit; their detail pages arrive in the next catalog refresh.

What an audit run on a marketplace actually produces

5 steps on the first run.

  1. Incremental crawling at scale. After the first full audit, re-crawls fetch only URLs whose sitemap lastmod moved or that fail revalidation, so a million-URL catalog re-audits for a fraction of the first crawl.
  2. Cluster by template signature. Findings group by vendor, category, and filter combination so platform engineering can fix the template, not the URL.
  3. Detect canonical and noindex drift. The audit flags entire template families whose canonical strategy has drifted, before the index drop is visible in Search Console.
  4. Get PR-ready fix copy. Each finding ships with the canonical, robots, and disallow directives expressed as concrete head and robots-txt fragments.
  5. Re-crawl on the next deploy. Sampled audit re-runs at the same template coverage so before-after deltas are statistically comparable.

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All 140+ checks, free audit, no credit card.