The library · shelf 4 of 8
Reference modules
Researched guidance and preserved baseline material; each document states its own review status.
Answers: Which documents are on the “Reference modules” shelf of the SEO / AIO library?
- 01Agent access, MCP and security boundariesA readable website and an authenticated tool interface solve different problems. Do not install an MCP server, expose a database or publish privileged…
- 02AI answer observation and controlled evaluationAn observation panel is a controlled sample, not a census of every answer an engine gives. Begin with a business question such as whether a factual service…
- 03AI referrals, analytics channels and qualified outcomesGA4 now documents an AI Assistant default channel, while Google AI Overviews and AI Mode are included in Organic Search. Event-scoped, session-scoped and…
- 04AI citation engineering — controllable inputs and observable outcomesThe engineering objective is to make accurate public information retrievable and useful to the intended consumers, then measure actual visibility and…
- 05Google AI Overviews and AI Mode — eligibility, controls and measurementGoogle's AI Search features build on its Search systems. A supporting page must meet the documented indexing and snippet-eligibility conditions, and no…
- 06Bing AI Performance and citation-share interpretationBing introduced AI Performance as a public preview in February 2026. Its June expansion adds Intents, Topics, Citation Share and period comparison. Citation…
- 07Client scope, tier applicability and acceptanceThe existing tier names and numbering are retained, including Tier 13's retired status. A tier is a commercial grouping, not proof that every client…
- 08Commerce data consistency across page, feed and structured dataUse a controlled product record as the source for visible price, currency, availability, product identity and the matching structured-data output. A theme,…
- 09Content delivery first — without false crawler absolutesA website should deliver useful content reliably before decorative or interactive complexity obscures its purpose. This is a practical design preference,…
- 10Crawl payload budgets and content deliveryGoogle's March 2026 clarification describes a 2 MB Googlebot fetch limit for supported files other than PDF, with response headers included; resources such…
- 11Crawler identity, logs and safe edge accessA request's user-agent text is a claim anyone can send. Store claimed_agent separately from verification_result , verification_method and…
- 12Engine-specific discovery, training and user-access controlsRoles above are from S03, S08, S10, S11 and S12. OAI-AdsBot is an ad-landing-page workflow, not a prerequisite for organic search visibility. Do not open it…
- 13Evidence governance and claim authorizationThe old library mixes engine requirements, useful house style, experiments and confident predictions. This edition uses separate evidence classes. Official…
- 14Faceted navigation and crawl-space controlInventory filter dimensions, sorting modes, pagination, tracking parameters and variant selection. Estimate the generated URL space from actual application…
- 15Field performance and interaction acceptanceCurrent Core Web Vitals are LCP, INP and CLS. The good thresholds are LCP at most 2.5 seconds, INP at most 200 milliseconds and CLS at most 0.1, assessed at…
- 16GA4 implementation — current AI channels, scopes and outcome qualityDefine the customer action and the independently verifiable business result. A page view, button interaction, form submission, accepted lead and completed…
- 17Google generative AI performance: current reporting contractGoogle announced dedicated generative AI performance reporting on June 3, 2026 and states that rollout reached websites worldwide on August 31. The Search…
- 18Search Console analysis — current reports and defensible diagnosticsStart with the actual property scope, permissions, reporting dates and available features. A domain property, URL-prefix property and platform property do…
- 19Titles, descriptions and preview copy without false limitsGoogle does not impose a fixed 50–60-character title requirement or a 140–160-character description requirement. Display may be truncated and the search…
- 20Location-page evidence and genuine local utilityApprove a location page only when it answers a real local customer need and the business can substantiate its relevance. Useful evidence may include actual…
- 21SEO library — canonical master index26-discipline expansion — 2026.09.09-d26: Route engineering, SEO, AI visibility and publication work through the discipline operating library . Read the…
- 22Migration contract, checkpoints and rollbackWrite down the old and new states: domains, URL patterns, content, rendering, infrastructure, analytics, structured data and business workflows. Avoid…
- 23Next.js metadata, streaming and rendering validationRecord the installed Next.js and React versions, router, runtime, hosting target, cache strategy and deployment adapter. Do not copy a server configuration…
- 24Next.js SEO implementation — versioned route contractsCapture the installed Next.js/React versions, App versus Pages Router, runtime, deployment adapter and caching strategy. An older nginx/PM2 example is not a…
- 25Preferred Sources and publisher relationship designGoogle provides a Preferred Sources workflow and publisher guidance, including an interactive button option. The feature is based on reader choices and…
- 26Regional Search eligibility and policy differencesRecord the business's operating jurisdiction, the content's intended market and the searcher's location. They are not interchangeable. A feature may depend…
- 27Research maintenance and documentation drift controlEach maintained rule needs an owner, current source, observed date, affected modules and a next-review condition. A document is not current merely because…
- 28Structured-data lifecycle and feature eligibilityAsk whether the JSON is syntactically valid, whether the vocabulary describes the page truthfully, and whether a named consumer currently supports a related…
- 29Schema types in 2026 — semantic validity versus search featuresSchema.org vocabulary and search-engine feature support are separate layers. A valid type can describe content even when Google does not offer a…
- 30ChatGPT Search — publisher access and measured referralsThis filename is retained for compatibility with the earlier library, but the subject is ChatGPT Search and the currently documented publisher controls. Do…
- 31SEO release contracts and reproducible acceptance tests“SEO installed” is not a release criterion. Define contracts for each page class: public service, product, article, location, search/filter, account, error…
- 32Social and video platform properties in Search ConsoleGoogle's July 29, 2026 announcement describes globally available platform properties for supported social/video services, including Instagram, TikTok, X and…
- 33First-party facts, provenance and reusable evidenceA website should draw business facts from approved records: services actually offered, real qualifications, current availability, genuine project outcomes…
- 34Search spam policy — scoped interpretation and operational controlsGoogle's spam rules cover manipulative practices including doorway pages, scaled-content abuse, hidden-content abuse and site-reputation abuse. The policy…
- 35URL lifecycle, canonical decisions and safe retirementMaintain one record per URL with current status, desired state, content owner, business purpose, incoming/internal links, observed traffic, canonical…
- 36SEO build reference: intake to production evidenceSEO build reference: intake to production evidence: 26-discipline expansion — 2026.09.09-d26: Route engineering, SEO, AI visibility and publication work through the discipline operating library . Read the…
- 37Universal Search Delivery Framework — not a ranking formulaThe original library linked to this filename without supplying the document. This edition creates a real decision framework while rejecting the implication…
- 38Executed validation — 2026.09.09All 24 unit tests passed locally. Exact output is in unit-tests.txt . Tests exercise the four new utilities, including deliberately invalid inputs; they do…
- 39SEO library audit and research updatePrepared for Joseph · Research snapshot: 9 September 2026 · Release:
- 40Coverage matrix — every unique originalThis is a coverage disclosure, not a pass/fail score. Complete structural inventory and hash preservation apply to all 146 unique originals. Factual review…
- 41Findings and dispositions28 selected finding records. Classifications distinguish confirmed errors, outdated features, unsafe universal instructions, unsupported generalizations,…
- 42Remaining review queue and explicit limitsThis release is a completed structural audit and targeted research update, not a line-by-line factual certification of approximately one million original…
- 43Primary-source registerResearch snapshot: 9 September 2026 . These 52 primary sources were consulted for the stated scopes: 50 search, analytics, web-platform and agent sources,…
- 44Tier applicability and deliverable mapThe original 1–14 numbering and names are retained. Tier 13 remains retired. Names such as “AI DOMINATION” and “LOCAL DOMINATION” are legacy packaging…
- 45Schema examples — fictional, not deployable as suppliedThese four files illustrate graph structure, not real businesses, credentials, offers, addresses or ratings. They pass local JSON syntax tests only. No live…
- 46Implementation templatesThe 12 JSON files in this folder are working data contracts and fictional examples, not populated client reports. null means unknown or not yet measured; it…
- 47Offline tools and test scopePython 3.10 or newer, standard library only. These tools make no network requests, do not execute uploaded historical scripts and do not change a website or…