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Review Schema for AI Citations
Review schema spec for AI shopping citations: required Review and AggregateRating fields, anti-spam policy, and validation for ChatGPT, Perplexity, and Google.
Robots.txt for AI Crawlers: Specification & Configuration
Complete robots.txt spec for AI crawlers: GPTBot, ClaudeBot, PerplexityBot, Google-Extended, CCBot directives, syntax rules, and validation pipeline.
Security Headers Configuration for AI Crawlers
Reference for HTTP security headers (HSTS, CSP, X-Frame-Options, Referrer-Policy) that don't block GPTBot or PerplexityBot AI crawlers.
Service Schema for AI Search
Schema.org Service spec for AI search citations: required JSON-LD properties, areaServed, provider, serviceType, hoursAvailable, and entity-linking patterns.
Sitemap-Index Patterns for AI Search
Sitemap-index spec for AI search: 50K URL limits, partitioning by content type, lastmod accuracy, news/image/video sub-sitemaps, and AI-crawler ping behavior.
SoftwareApplication Schema for AI Search
SoftwareApplication schema specification for AI search: required fields, AggregateRating + Offer nesting, screenshots, and ChatGPT/Perplexity extraction patterns.
Speakable Schema Specification for AI Voice Search
Speakable schema markup spec marking content for AI voice assistant extraction—property fields, CSS selector targeting, and engine support matrix.
Server-Side Rendering (SSR) Patterns for AI Search
SSR patterns for AI search: full SSR vs streaming SSR vs ISR vs static prerender, framework decision matrix, and AI-crawler eligibility rules.
Subresource Integrity and AI Trust Signals
How Subresource Integrity (SRI) hashes, C2PA manifests, and HTTP signatures combine into a verifiable trust signal for AI search engines that cite your content.
TDMRep (TDM Reservation Protocol) Spec for AI Crawlers
TDMRep (W3C TDM Reservation Protocol) for AI crawlers — tdmrep.json, TDM-Reservation header, HTML meta, and CDSM Article 4 alignment.
Title Tag Optimization for AI Citations and Answer Cards
How to write title tags that win AI citation cards in ChatGPT, Perplexity, and Google AI Overviews — length, brand placement, entity prominence, examples.
Vary Header Patterns for AI Crawlers
Specification for the Vary HTTP header when serving AI crawlers across User-Agent, Accept, Accept-Encoding, and Accept-Language to avoid cache poisoning.