Sentry is 30 pairs of eyes continuously monitoring your performance for the quality signals search engines, AI channels, and PPC platforms use to decide whether to show you.
Search engines and AI channels weigh dozens of visibility signals when deciding whether to show your business. Cortex has a Sentry for each one - continuously scoring your performance against the platforms’ own documented best practices.
How Googlebot sees your site. robots.txt, noindex, canonical match, sitemap freshness, render budget, coverage errors, Core Web Vitals.
Bing + Copilot + Yahoo + DuckDuckGo. BWT verification, IndexNow, NOARCHIVE/NOCACHE posture, data-snippet directives, Copilot grounding.
Siri, Spotlight, Safari Suggestions across a billion Apple devices. Applebot-Extended split for Apple Intelligence training opt.
OpenAI training-crawler accessibility. Cloudflare AI Audit, WAF interference, SSR reachability, independence from search bot.
ChatGPT Search citation eligibility. Separately controllable from GPTBot training. Catches bundled blocking by Cloudflare AI Audit.
Anthropic's three-bot fleet: training, user-initiated, search. All honor robots.txt independently; sites routinely block one and not the others.
Perplexity citation reach. Two bots (PerplexityBot respects robots, Perplexity-User does not) plus Cloudflare's August 2025 stealth-fetch detection.
Gemini training & grounding posture. Robots.txt token only; no separate UA. Independent of Googlebot ranking - pure policy decision.
ByteDance crawler governance for TikTok recommendation training and Doubao LLM. No first-party docs - third-party fingerprinting only.
Amazon's three-bot fleet. Amazonbot trains, Amzn-SearchBot powers Alexa/Rufus search (does NOT train), Amzn-User handles live consumer queries.
llms.txt spec compliance. 12 rules from llmstxt.org. Letter grading, per-rule prescriptions.
Largest Contentful Paint. Mobile + desktop p75 vs Google's 2.5s threshold, TTFB gate, SSR discoverability, render-blocking, and the LCP image stack (preload, fetchpriority, lazy posture, modern format, dimensions).
Interaction to Next Paint. Mobile + desktop p75 vs Google's 200ms threshold, TBT lab gate, main-thread work, third-party JS share, bundle size, DOM size, unused JavaScript.
Cumulative Layout Shift. Mobile + desktop p75 vs Google's 0.1 threshold, zero shift elements, sized images, font-display posture, viewport meta, late-loading content checks.
Time to First Byte. Mobile + desktop p75 vs Google's 800ms threshold, HTTP/2 adoption, text compression, preconnect hints, CDN detection, stricter origin response gate.
First Contentful Paint. Mobile + desktop p75 vs Google's 1.8s threshold, render-blocking, text compression, font-display, preconnect, third-party origin minimization.
Total Blocking Time. Lighthouse lab proxy for INP. Sum of main-thread blocking time between FCP and TTI in 50ms+ chunks. Surfaces JavaScript-induced interactivity risk before real users feel it.
Lighthouse lab metric measuring how quickly above-the-fold content visually populates. Lower is better; Google's good threshold is 3.4s. Catches render-path regressions invisible to LCP alone.
Time to Interactive. Lab-only metric capturing when the page first becomes reliably interactive (network + main thread quiet). Deprecated from Lighthouse v10 but still useful for trend analysis on legacy bundles.
First Input Delay. Retired by Google on 2024-03-12 in favor of INP. Sentry tracks historical CrUX FID where present so legacy month-over-month dashboards stay continuous through the INP transition.
Google Ads account quality monitoring. Smart Bidding readiness, data sufficiency (15-in-30), budget utilization, Quality Score, Impression Share + Lost IS, RSA + asset coverage, learning-phase status, PMax minimum spend, negatives, and Landing Page Experience.
Microsoft Advertising account quality monitoring. Smart Bidding, UET data sufficiency, budget pacing, Impression Share, Quality Score, LinkedIn Profile Targeting, Microsoft Clarity install, Microsoft Audience Network alignment, Google Ads import, and Landing Page Experience.
Amazon Ads account + listing quality monitoring. Sponsored Products delivery, ACoS health, inventory in-stock, dynamic bidding, A+ Content, listing completeness, review threshold + rating, Brand Registry, Sponsored Brands defense, and DSP audience layering.
Meta Ads account quality monitoring across Facebook + Instagram. Advantage+ activation, Pixel + CAPI data sufficiency, budget pacing, frequency, creative count, learning-phase, audience overlap, lookalike seed size, dynamic catalog ads, and Event Quality Score.
ChatGPT Ads + AI-engine paid placement quality monitoring. Brand pilot eligibility, LLM-readable landing, llms.txt + Organization schema, cross-engine citation (Perplexity/Gemini/Claude), primary-source authority, brand corpus presence (Wikipedia/Wikidata), competitor bid alignment, and session frequency caps.
Product rich result + Google Shopping Merchant Listing + Rufus eligibility. 14 rules covering identifier, condition, return policy, availability, and snippet basics.
Knowledge Panel anchor + AI entity recognition. name, url, logo, sameAs, contactPoint, address, legalName.
Sitelinks Search Box on brand SERPs. SearchAction wiring, urlTemplate placeholder, query-input syntax, publisher reference.
Breadcrumb trail under SERP URL. itemListElement structure, position monotonicity, ListItem name + item URL validity.
Top Stories + Discover eligibility. Article / BlogPosting / NewsArticle. headline, image, datePublished, author, publisher logo, mainEntityOfPage.
ChatGPT / Perplexity / Claude / Gemini citation favorite for direct-answer queries. Question + acceptedAnswer integrity, answer quality, uniqueness.
Star ratings under SERP titles + AI trust signal. AggregateRating completeness, Review author validation, reviewBody quality, dates.
Local pack + Knowledge Panel + GBP enrichment. PostalAddress completeness, opening hours, geo coords, priceRange, aggregateRating.
E-E-A-T author entity for byline-attributed AI citations. name, url, sameAs to authority profiles, jobTitle, worksFor, knowsAbout.
Video rich result + SERP carousel + AI engine video citation. name, description, thumbnailUrl, uploadDate ISO 8601, content/embed URL, duration ISO 8601, publisher.
Stop Guessing. Start Seeing. Get Cortex.
Cortex is your marketing decision engine. It knows every best practice ever published across search and AI platforms - and every visibility signal these platforms use to rank your business. Cortex monitors your site against those signals in real time and automatically optimizes your site for them. The result - more conversions, lower cost.