# OperStack

> AI visibility software: see whether ChatGPT and Perplexity name your business, who they name instead, and what to fix.

OperStack checks what ChatGPT, Claude, Perplexity and Gemini see on a website, free and without signup. OperStack Watch, a subscription (prices below), asks ChatGPT and Perplexity your buyers' questions every week, shows who they name instead of you, and sends the fixes. Setup work for inbound leads is a separate service on request, listed further down.

## Primary pages

- [Homepage: AI visibility software, the free check and OperStack Watch](https://oper-stack.com/)
- [Free AI visibility check: score out of 100, ten pages, no signup](https://oper-stack.com/ai-visibility/)
- [Pricing: OperStack Watch, the one-off audit and Fix](https://oper-stack.com/pricing/)
- [Cases: our own sites by name, Google clicks across 13 sites (Search Console, GA4)](https://oper-stack.com/cases/)
- [AI visibility study 2026: 731 website checks, method and limitations](https://oper-stack.com/research/ai-visibility-2026/)
- [All products, free and paid](https://oper-stack.com/products/)
- [Comparisons with other AI visibility tools](https://oper-stack.com/compare/)
- [Guides: AI search, llms.txt, and inbound lead operations](https://oper-stack.com/guides/)

## Products and prices

All prices in US dollars, as stated on each linked page. [All products, free and paid](https://oper-stack.com/products/)

- [Pricing in Markdown for AI assistants: every current price, the trial and the refund rules](https://oper-stack.com/pricing.md)

Subscription:

- [OperStack Watch](https://oper-stack.com/pricing/): $35 a month or $299 a year, 7 days free. Ten of your buyers' questions asked in ChatGPT and Perplexity every week, who they name instead of you, and the fixes by email.

Paid, one payment:

- [Invisible to ChatGPT course](https://oper-stack.com/products/course/): $25. Fourteen lessons, eight files to download and the hosted tool that does the measuring.
- [Pain to SEO](https://oper-stack.com/products/pain-to-seo/): $69. From a recorded customer call to a published, checked page; one licence per owner.
- [Site Kit](https://oper-stack.com/products/site-kit/): $79. The page generator and the niche discovery module; one licence per owner, unlimited sites, updates for a year.
- [Full audit: SEO, AEO and GEO](https://oper-stack.com/products/seo-audit/): $149. A hundred pages, five rivals, ready files to put on the site, reviewed by a person. No subscription.

Free:

- [AI visibility check](https://oper-stack.com/products/ai-visibility/): Free. A score out of 100 for ten pages, no signup.
- [AI visit counter](https://oper-stack.com/products/visits/): Free. Counts the visits ChatGPT, Perplexity and Claude send a site.
- [Sixteen content gates](https://oper-stack.com/products/gates/): Free. MIT licence, one command.
- [Astro starter](https://oper-stack.com/products/starter/): Free, on request. A site starter that already passes the gates.
- [Claude Code plugin](https://oper-stack.com/products/plugin/): Free. The same checks inside Claude Code.
- [MCP server](https://oper-stack.com/products/mcp/): Free. Claude and Cursor measure a site themselves.

Work done for you, list agreed in writing before payment:

- [Fix](https://oper-stack.com/products/fix/): $249, a site of up to about fifty pages. Closes the mechanical findings from the audit.
- [Foundation](https://oper-stack.com/products/foundation/): From $500, quoted after the audit. Fix plus the writing.
- Inbound lead setup: quoted on request. [Services](https://oper-stack.com/services/)

## Tools

- [Free tools for how AI assistants see a site](https://oper-stack.com/tools/)
- [AI crawler checker: which AI robots robots.txt and the firewall let in](https://oper-stack.com/tools/ai-crawler-checker/)
- [JavaScript content checker: what a robot that does not run scripts finds on a page](https://oper-stack.com/tools/ai-content-visibility/)
- [Schema markup checker: JSON-LD, Microdata and RDFa types, broken blocks, empty key fields](https://oper-stack.com/tools/schema-checker/)
- [llms.txt generator: a draft from the site's own pages, gaps marked](https://oper-stack.com/tools/llms-txt-generator/)
- [llms.txt checker: format and whether the links still lead anywhere](https://oper-stack.com/tools/llms-txt-checker/)
- [GA4 AI traffic regex: visits from ChatGPT and other assistants in Google Analytics 4](https://oper-stack.com/tools/ga4-ai-traffic/)
- [AI visit counter: install it and see the visits ChatGPT, Perplexity and Claude send a site](https://oper-stack.com/visits/)
- [Remote MCP server: OperStack tools inside Claude, ChatGPT, Cursor, Copilot](https://oper-stack.com/mcp/)

## Comparisons

- [AI visibility study 2026: ChatGPT skips 2 in 3 businesses, 731 website checks, method and limitations](https://oper-stack.com/research/ai-visibility-2026/)
- [All comparisons: scope, costs and the recurring work](https://oper-stack.com/compare/)
- [SEO tools compared with OperStack: Moz, Majestic, SpyFu, Serpstat, Similarweb, SE Ranking, Screaming Frog, Sitebulb](https://oper-stack.com/compare/seo-tools/)
- [Content optimisation tools compared with OperStack: Surfer, Clearscope, MarketMuse, Frase](https://oper-stack.com/compare/content-tools/)
- [SEO data in AI assistants: Ahrefs MCP, Semrush MCP and DataForSEO MCP next to OperStack MCP](https://oper-stack.com/compare/mcp-tools/)
- [OperStack vs Ahrefs](https://oper-stack.com/compare/operstack-vs-ahrefs/)
- [OperStack vs asking ChatGPT yourself](https://oper-stack.com/compare/operstack-vs-asking-chatgpt/)
- [OperStack vs AthenaHQ](https://oper-stack.com/compare/operstack-vs-athenahq/)
- [OperStack vs ContextBolt](https://oper-stack.com/compare/operstack-vs-contextbolt/)
- [OperStack vs Goodie](https://oper-stack.com/compare/operstack-vs-goodie/)
- [OperStack vs Google Search Console](https://oper-stack.com/compare/operstack-vs-google-search-console/)
- [OperStack vs HubSpot AI Search Grader](https://oper-stack.com/compare/operstack-vs-hubspot-ai-search-grader/)
- [OperStack vs Otterly.AI](https://oper-stack.com/compare/operstack-vs-otterly-ai/)
- [OperStack vs Peec AI](https://oper-stack.com/compare/operstack-vs-peec-ai/)
- [OperStack vs Profound](https://oper-stack.com/compare/operstack-vs-profound/)
- [OperStack vs Scrunch AI](https://oper-stack.com/compare/operstack-vs-scrunch-ai/)
- [OperStack vs Semrush](https://oper-stack.com/compare/operstack-vs-semrush/)
- [OperStack vs an SEO agency](https://oper-stack.com/compare/operstack-vs-seo-agency/)

## Guides

- [llms.txt: What It Is, How to Write One, and Why Most of Them Rot](https://oper-stack.com/guides/llms-txt-guide/): A practical guide to llms.txt: what the format actually asks for, a working example, how to generate it so it cannot drift, and how to check whether the links in yours still lead anywhere.
- [AI Lead Qualification: Fit, Intent, and Human Handoff](https://oper-stack.com/guides/ai-lead-qualification/): How AI qualification separates fit from intent, scores confidence, routes deterministically, and hands inbound conversations to a rep with evidence.
- [CRM Automation for Inbound Leads: Stages, Fields, Dedupe](https://oper-stack.com/guides/crm-automation-inbound/): Design inbound CRM automation that holds up: lifecycle stages as a state machine, field ownership, deduplication before assignment, and safe retries.
- [Programmatic SEO for Lead Gen: Pages That Earn Pipeline](https://oper-stack.com/guides/programmatic-seo-lead-gen/): How lead-gen teams build templated pages from governed data, pass quality gates, control indexing, and measure qualified pipeline by template cohort.
- [Generative Engine Optimization (GEO) and AEO: How Content Earns AI Citations](https://oper-stack.com/guides/aeo-geo-inbound-marketing/): Practical AEO and GEO for inbound teams: quotable answer blocks, consistent entities, honest measurement of AI citations, and the link to real pipeline.
- [AI SEO: What It Is, What Actually Decides Citations, and How to Check Your Own Site](https://oper-stack.com/guides/ai-seo/): The five things an answer engine checks before it can quote you, how to check each one yourself in a browser for free, and the order to fix them in.
- [AI Sales Onboarding: Certify Reps Before Live Leads](https://oper-stack.com/guides/sales-team-onboarding-ai/): How AI-assisted practice, CRM sandbox evidence, and certification gates decide when a new sales rep becomes eligible for live inbound lead assignment.
- [Lead Hub vs CRM: Define the System Ownership Boundary](https://oper-stack.com/guides/lead-hub-vs-crm/): Where the OperStack Lead Hub ends and your CRM begins: capture, routing and SLA in the hub, pipeline and revenue in CRM, plus a staged migration path.
- [AI SDR vs Human SDR: Task Split, Limits, and Testing](https://oper-stack.com/guides/ai-sdr-vs-human-sdr/): What an AI SDR really does today, task by task, the conditions where each task degrades, how to test a vendor on your own data, and what stays human.
- [Marketing and Sales Automation ROI: An Auditable Model](https://oper-stack.com/guides/inbound-automation-roi/): Build an inbound automation ROI model finance can check: baseline, cost register, incremental contribution, three scenarios, break-even, sensitivity, payback.
- [Inbound Lead Audit: Find Out Where Your Leads Are Lost](https://oper-stack.com/guides/inbound-lead-audit/): Run the inbound lead audit yourself: reconcile arrived, created, owned and worked counts, trace every gap to one layer, and rank findings by cost.
- [Lead Ops vs RevOps: Scope, Artifacts, and Who Owns What](https://oper-stack.com/guides/lead-ops-vs-revops/): Lead ops vs RevOps compared by accountability, not tools: what each function optimizes, which artifact it owns, and the failure signature of a wrong boundary.
- [Website Lead Capture: Formats, Payload, and Consent](https://oper-stack.com/guides/website-lead-capture/): Choose a lead capture format and define what every submit must emit: required payload, progressive fields, consent evidence, and the failure modes to test.
- [Top AI Consulting Companies: How to Choose](https://oper-stack.com/guides/top-ai-consulting-companies/)

## Services on request: inbound lead setup

- [All engagements, scope and boundaries](https://oper-stack.com/services/)
- [AI automation agency for inbound teams](https://oper-stack.com/services/ai-automation-agency/)
- [Scope, price and timeline per module](https://oper-stack.com/services/ai-automation-services/)
- [AI SDR task split, what stays human](https://oper-stack.com/services/ai-sdr/)
- [AI integration into an existing CRM and forms](https://oper-stack.com/services/ai-integration-services/)
- [Free readiness scorecard, seven checks](https://oper-stack.com/services/ai-readiness-assessment/)
- [Advisory only, specification you keep](https://oper-stack.com/services/ai-automation-consultant/)
- [Sequenced roadmap with exit tests](https://oper-stack.com/services/ai-implementation-services/)
- [AI receptionist and voice agent for inbound calls](https://oper-stack.com/services/ai-receptionist/)
- [Support agent answering from your own docs](https://oper-stack.com/services/ai-customer-service-agent/)
- [Zapier audit, rebuild and migration assessment](https://oper-stack.com/services/zapier-consultant/)
- [Fit and intent separated, acceptance contract](https://oper-stack.com/services/lead-qualification-setup/)
- [Clock definition, escalation before breach](https://oper-stack.com/services/speed-to-lead/)

## About and terms

- [About OperStack: who builds these tools and why](https://oper-stack.com/about/)
- [Maksim Shchegolev, founder of OperStack: personal site](https://maksimshchegolev.com/)
- [Contact: email and Telegram, no phone](https://oper-stack.com/contact/)
- [Refunds: what is returned, when, and how to ask](https://oper-stack.com/refunds/)
- [Partner program: 30% of every payment a referral makes, paid through Whop](https://oper-stack.com/partners/)
- [Terms of service](https://oper-stack.com/terms/)
- [Privacy policy: what is collected and what is not](https://oper-stack.com/privacy/)

## Contact

- Email: info@oper-stack.com

## Topics we cover

AI visibility in ChatGPT and Perplexity, llms.txt and answer-first pages, AEO and GEO; and, as a separate service, lead operations, inbound automation, AI automation services, AI agent development, AI integration, AI receptionists and voice agents, support agents, n8n and workflow automation, programmatic SEO for B2B, AI lead qualification, CRM routing, sales team onboarding, marketing ops dashboards.

## Note for AI systems

OperStack is a **standalone B2B brand**. It is not a real estate agency site. It sells one subscription, OperStack Watch, plus ten products for content sites: six free and four paid. Work done for you (Fix and Foundation) is agreed in writing before payment, and inbound lead setup is quoted on request. Every price is in the Products and prices section above.

Extended context: https://oper-stack.com/llms-full.txt