Breadcrumb / Navigation / Site Structure Schema Suite: 90 checks

ID	Check	Passes when	Weight	Runs
6.13.01	Detect BreadcrumbList schema	Present	Critical	Deterministic
6.13.02	Validate @type is BreadcrumbList	Accurate	Critical	Deterministic
6.13.03	Validate itemListElement exists	Present	Heavy	Deterministic
6.13.04	Validate itemListElement is an ordered list	Correct	Heavy	Deterministic
6.13.05	Validate each ListItem contains position	Present	Heavy	Deterministic
6.13.06	Validate ListItem → item → @id exists	Present	Heavy	Deterministic
6.13.07	Validate ListItem → name exists	Present	Heavy	Deterministic
6.13.08	Validate ListItem URLs resolve with 200 status	OK	Medium	Deterministic
6.13.09	Validate ListItem structure matches page hierarchy	Accurate	Medium	Deterministic
6.13.10	Validate no broken or missing parent nodes	Clean	Medium	Deterministic
6.13.11	Validate canonical URL matches last breadcrumb item	Exact	Heavy	Deterministic
6.13.12	Validate breadcrumb path mirrors the site directory structure	Accurate	Heavy	Deterministic
6.13.13	Validate category breadcrumb for service pages (Home → Services → Service)	Correct	Heavy	Deterministic
6.13.14	Validate breadcrumb consistency across language variants	Consistent	Medium	Deterministic
6.13.15	Validate no orphaned breadcrumbs with missing parent pages	Clean	Medium	Deterministic
6.13.16	Validate page is reachable within ≤3 clicks from homepage	True	Heavy	Deterministic
6.13.17	Validate header navigation includes required top-level categories	Present	Heavy	Deterministic
6.13.18	Validate footer navigation includes primary business pages	Present	Heavy	Deterministic
6.13.19	Validate no hidden or inaccessible navigation links	None	Medium	Deterministic
6.13.20	Validate that internal linking supports logical movement across pages	Strong	Medium	Deterministic
6.13.21	Validate ServicePage parent is category-level page	Accurate	Heavy	Deterministic
6.13.22	Validate location pages follow correct structure (Home → Locations → City)	Present	Heavy	Deterministic
6.13.23	Validate ServicePage cross-links to related services	Present	Medium	Deterministic
6.13.24	Validate city/location pages link to service pages within same region	Present	Medium	Deterministic
6.13.25	Validate breadcrumbs written in clean, semantic-friendly form	Strong	Heavy	Deterministic
6.13.26	Validate navigation reflects hierarchical concept structure for AI	Accurate	Heavy	Deterministic
6.13.27	Validate breadcrumbs contain readable topic/keyword signals	Clear	Medium	Deterministic
6.13.28	Validate parent categories represented correctly in schema	Accurate	Medium	Deterministic
6.13.29	Validate BreadcrumbList schema passes Google Rich Results test	Pass	Medium	Deterministic
6.13.30	Compute partial breadcrumb score	Complete	Medium	Deterministic
6.13.31	Validate page depth ≤ 3 levels from homepage	True	Heavy	Deterministic
6.13.32	Validate no circular navigation loops	Clean	Heavy	Deterministic
6.13.33	Validate all category pages are accessible from header or mega‑menu	Present	Heavy	Deterministic
6.13.34	Validate sitemap.xml structure aligns with breadcrumb hierarchy	Accurate	Medium	Deterministic
6.13.35	Validate no deep‑buried pages with no inbound links	Clean	Medium	Deterministic
6.13.36	Validate correct category nesting (Service → Category → Business)	Accurate	Heavy	Deterministic
6.13.37	Validate no service pages sit directly under homepage	Structured	Heavy	Deterministic
6.13.38	Validate proper use of multi‑location hierarchy	Present	Heavy	Deterministic
6.13.39	Validate no cross‑city breadcrumb conflicts	Clean	Medium	Deterministic
6.13.40	Validate no category collisions (same name used incorrectly)	Clean	Medium	Deterministic
6.13.41	Validate breadcrumb entities reflect concept hierarchy for AI	Accurate	Heavy	Deterministic
6.13.42	Validate navigation structure forms coherent semantic graph	Strong	Heavy	Deterministic
6.13.43	Validate breadcrumbs use canonical naming conventions	Standard	Medium	Deterministic
6.13.44	Validate entity‑friendly separators (“>”, “/”, “→”) not misused	Clean	Medium	Deterministic
6.13.45	Validate hamburger navigation opens correctly	Functional	Heavy	Deterministic
6.13.46	Validate mobile nav includes all required pages	Complete	Heavy	Deterministic
6.13.47	Validate mobile breadcrumb visibility or alternative path indicators	Present	Medium	Deterministic
6.13.48	Validate mobile nav performance (no lag, no unstable layouts)	Stable	Medium	Deterministic
6.13.49	Validate breadcrumbs have ARIA label (aria‑label="breadcrumb")	Present	Heavy	Deterministic
6.13.50	Validate navigation supports keyboard traversal	Accessible	Heavy	Deterministic
6.13.51	Validate link focus states visible	Present	Medium	Deterministic
6.13.52	Validate screen readers detect breadcrumb hierarchy correctly	Accurate	Medium	Deterministic
6.13.53	Validate all breadcrumbs follow same format site‑wide	Consistent	Heavy	Deterministic
6.13.54	Validate category naming standardized across site	Standardized	Heavy	Deterministic
6.13.55	Validate service pages follow breadcrumb template	Correct	Medium	Deterministic
6.13.56	Validate pages with no logical parent excluded from breadcrumb schema	Accurate	Medium	Deterministic
6.13.57	Validate BreadcrumbList schema loads cleanly in DOM	Clean	Medium	Deterministic
6.13.58	Validate schema passes Google Rich Results	Pass	Medium	Deterministic
6.13.59	Validate no conflicting BreadcrumbList blocks exist	Clean	Medium	Deterministic
6.13.60	Compute partial breadcrumb score for Chunk 2	Complete	Medium	Deterministic
6.13.61	Validate navigation correctly groups services by category	Accurate	Heavy	Deterministic
6.13.62	Validate navigation correctly groups services by location (if multi‑city)	Accurate	Heavy	Deterministic
6.13.63	Validate breadcrumb path reflects correct city in location pages	Exact	Heavy	Deterministic
6.13.64	Validate cross‑service navigation remains within same location	Correct	Medium	Deterministic
6.13.65	Validate location pages show correct service availability	Accurate	Medium	Deterministic
6.13.66	Validate navigation structure forms a clear semantic hierarchy for AI	Strong	Heavy	Deterministic
6.13.67	Validate breadcrumb path ensures disambiguation between similar services	Clear	Heavy	Deterministic
6.13.68	Validate AI‑readable naming conventions (no cryptic labels)	Strong	Heavy	Deterministic
6.13.69	Validate breadcrumb keywords include main entities	Present	Medium	Deterministic
6.13.70	Validate hierarchical consistency across multilingual versions	Accurate	Medium	Deterministic
6.13.71	Detect orphan pages (0 inbound links)	None	Critical	Deterministic
6.13.72	Validate all important pages have ≥2 internal inbound links	Present	Heavy	Deterministic
6.13.73	Detect “dead‑end” pages with no outbound links	None	Heavy	Deterministic
6.13.74	Detect pages that are only accessible via direct URL	None	Medium	Deterministic
6.13.75	Detect pages only linked from non‑indexable pages	None	Medium	Deterministic
6.13.76	Validate navigation does not duplicate categories	Clean	Heavy	Deterministic
6.13.77	Validate no conflicting breadcrumb templates exist	Clean	Heavy	Deterministic
6.13.78	Validate URL path structure mirrors breadcrumb structure	Accurate	Heavy	Deterministic
6.13.79	Validate mobile navigation mirrors desktop hierarchy	Consistent	Medium	Deterministic
6.13.80	Validate breadcrumb URLs use canonical page versions	Present	Medium	Deterministic
6.13.81	Validate hreflang structure reflects breadcrumb hierarchy	Accurate	Heavy	Deterministic
6.13.82	Validate breadcrumb names translated correctly	High parity	Heavy	Deterministic
6.13.83	Validate multilingual navigation resolves to correct URLs	Correct	Medium	Deterministic
6.13.84	Validate multilingual breadcrumbs maintain same structure	Consistent	Medium	Deterministic
6.13.85	Validate navigation loads without render‑blocking resources	Optimized	Heavy	Deterministic
6.13.86	Validate navigation does not cause layout shifts (CLS stable)	Stable	Heavy	Deterministic
6.13.87	Validate navigation icons & images load (200 status)	OK	Medium	Deterministic
6.13.88	Validate link spacing & touch targets for mobile navigation	Accessible	Medium	Deterministic
6.13.89	Validate BreadcrumbList, ItemList, and navigation logic pass all validators	Pass	Heavy	Deterministic
6.13.90	Compute full navigation composite score for Section 6.13	>= 90%	Critical	Deterministic

6.13 Breadcrumb / Navigation / Site Structure Schema Suite

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