Start by proving that search systems and prospective customers can reliably reach, render, understand, and navigate the pages that explain blinds, shades, shutters, measuring, consultation, and installation.
Window treatment sites often depend on large image galleries, product options, filters, configuration tools, and interactive media, so pass or fail decisions should come from observable behavior on representative templates instead of assumptions about what a search engine rewards.
Crawl and index access for priority pages - Evidence required: crawl results, indexability settings, canonical signals, robots controls, sitemap entries, and Search Console inspection for representative category, product, service, guidance, and location pages.
Pass condition: pages intended for search can be crawled and indexed, pages intentionally excluded are excluded for a documented reason, and canonical choices match the preferred live content. Severity: critical when important commercial or guidance pages are blocked, noindexed, canonicalized elsewhere without intent, or absent because of a technical error.
Owner: technical SEO owner with developer support. Corrective action: repair unintended directives, canonical conflicts, sitemap omissions, redirect chains, or template rules that prevent access to useful pages.
Validation: recrawl affected templates, inspect representative URLs in Search Console, and confirm that rendered page directives match the intended state. Tools: Search Console, Screaming Frog.
Image delivery and gallery usability - Evidence required: a sample of product, room, fabric, shade, shutter, and completed-installation images across important templates, including source dimensions, rendered dimensions, format, loading order, and alternative text where applicable.
Pass condition: meaningful images are sized for their rendered use, efficient formats are used where supported, alternative text explains informational images, decorative images do not carry redundant text, and image loading does not create avoidable instability.
Severity: high when oversized assets delay useful content or make mobile browsing difficult. Owner: developer or technical SEO owner with content support. Corrective action: resize oversized media, use WebP or AVIF where appropriate, improve responsive image handling, defer non-critical gallery assets, and rewrite or remove alternative text based on whether the image conveys information.
Validation: retest representative templates with PageSpeed Insights, browser developer tools, and Search Console diagnostics, then visually confirm that the gallery still works as intended. Tools: Squoosh, Cloudinary, WP Rocket.
Structured product information for custom configurations - Evidence required: visible product details and the structured data emitted on representative blinds, shades, and shutters pages. Pass condition: markup describes information users can actually see, uses properties that fit the page, and follows current schema and search feature eligibility guidance.
Severity: high when markup invents or conflicts with prices, availability, ratings, variants, or other product facts; medium when implementation errors reduce clarity without misleading users. Owner: developer or technical SEO owner with merchandising review.
Corrective action: keep Product and AggregateOffer only where the visible page accurately supports those concepts, remove unsupported properties, and align generated values with the current merchandising source.
Validation: inspect the rendered source, run syntax and eligibility checks, and compare every material property with the page a customer sees. Structured data may support machine understanding, but it does not guarantee an enhanced result. Tools: Schema.org, Google Rich Results Test.
Visualizer and interactive-tool performance - Evidence required: performance traces and task testing for pages that use an AR or 3D window visualizer, configurator, measurement helper, or other interactive experience.
Pass condition: core explanatory content and navigation remain usable while the tool loads, the interface reserves enough space to avoid disruptive movement, and failure of the interactive feature does not block the customer from continuing.
Severity: high when scripts delay primary content, freeze interaction, or obscure the next step. Owner: front-end developer. Corrective action: defer non-essential scripts, split heavy code, reserve layout space, reduce unnecessary requests, and provide a usable fallback path.
Validation: compare before and after traces and complete the main mobile task with the tool available and with the tool unavailable. Tools: PageSpeed Insights, Search Console.
Internal links and retired collections - Evidence required: crawl reports and navigation checks showing links to live and retired fabrics, colors, mechanisms, collections, guides, and service pages. Pass condition: important internal links resolve to relevant live destinations, retired references are removed when they no longer help, and a redirect is used only when a genuine replacement serves the same intent.
Severity: high when broken links affect main navigation or important buying paths; medium for isolated links in older supporting content. Owner: SEO owner with merchandising input. Corrective action: update links to current destinations, remove obsolete references, and avoid forcing discontinued products to unrelated pages merely to eliminate an error response.
Validation: recrawl the affected templates, manually test a sample of changed links and redirects, and confirm that users can still reach the closest relevant product or guidance page. Tools: Screaming Frog, Ahrefs.