Tools for content sites that have to rank, be cited and convert

Every product on this page came out of one pipeline, the one behind the thirteen brands on the cases page. Five are free and stay free. The other eight have a price on the page, not in a call.

Not a developer? Start with the free AI visibility check (ten seconds, nothing to install), then read the audit if your site already exists or the Site Kit if you are building one. Developers usually start with the gates and the starter.

Free tool AI visibility check A free ten-second check of whether ChatGPT, Perplexity, Copilot, Claude and Gemini can read, understand and cite your site: crawler access, llms.txt, schema, quotable content, dates. Free Get it Free, open source Sixteen gates Sixteen automated quality gates for content sites: cut titles, copied paragraphs, hollow sections, dead links, stale llms.txt, unsourced figures, a missing agent surface. One command, one config, MIT. Free Get it Free, open source Astro starter An Astro starter with five content collections, an answer-first article layout, data cards, a generated llms.txt, an honest sitemap, twelve Cursor rules and the sixteen gates wired in. Free Get it Free, for Claude Code Claude Code plugin Five commands, two skills, a reviewer agent and a post-edit hook that runs the fast gates on every content file Claude touches. Free. Free Get it Free, open source MCP server Four tools for any MCP client: score a site across six areas, check the llms.txt map and where its links lead, compare rivals side by side, and run the sixteen gates on a local folder. Free, MIT, no account. Free Get it Paid, per site Site fix list Every problem found on your site, rewritten as a task you can hand to anyone: whoever built your site, or an assistant like ChatGPT, Claude or Cursor. Each task says what your site does now, what to change, and how to check it is done. The full measurement comes with it. 9 USD, one site, by email. 9 USD See what you get Paid, per site You and three rivals, watched for a month The full measurement of your site and of up to three rivals side by side, then four weekly re-checks by email showing what changed on yours. 29 USD, one site, no subscription to cancel. 29 USD See what you get Paid, one licence per owner Pain to SEO Reads your chat exports, tickets and call notes, pulls out the questions buyers actually ask, and reports which of them your site says nothing about. Runs on your own machine: the conversations never leave it. 69 USD See what you get Paid, one licence Site Kit The starter plus the page generator, the niche discovery module, a WordPress importer, indexing runbooks and support: everything one person needs to launch a content site that passes the gates, or to move an old one onto them. 79 USD See what you get Paid, per site SEO, AEO and GEO audit A twelve-page audit of your site: thirty-four to forty-four checks across six areas depending on what your site has, every score computed from the checks and printed with the count behind it. 149 USD for the first ten audits, then 249. Usually one to three working days, five at most. 149 USD See what you get Paid, per site Fix We close the mechanical findings on your site: robots, sitemap, llms.txt, schema, headings, contact path, redirects, caching, plus the sixteen gates over every page. The list is agreed before you pay, and anything we do not close comes back as a refund of its share. 249 USD See what you get Subscription, unlimited client sites Agency plan: reports under your own brand Run the audit on any number of client sites and hand each client a PDF carrying your logo, your colour and your name. 39 USD a month, cancel any time, no per-report fee. 39 USD / month See what you get Paid, quoted per site Foundation Everything in Fix, plus the three things a machine cannot do for you: an opening paragraph that can be quoted, a named source next to every figure, and the pages your market asks for that do not exist yet. From 500 USD, quoted after the audit. from 500 USD See what you get

Why I share this

I sell property to international buyers. It is a niche where a single advertising lead costs more than most products on this page, and where the buyer reads for weeks before writing to anyone. For years the enquiries came from paid ads. Then I built content sites that answer the questions those buyers ask, and the enquiries started arriving on their own: from Google first, then, more and more, from ChatGPT and Perplexity, which quote the pages when someone asks.

The numbers are on the cases page: organic clicks up 279 percent month over month across thirteen brands in more than ten countries, and a brand-new site that reached its first organic traction within six weeks of going live. Every tool on this page is a piece of the pipeline behind those sites, stripped of my data and packaged so you can run it in your own niche: the method for finding what a market actually searches for, the page shapes that get quoted, and the checks that stop a bad page from going live.

I am not a software company. I am an operator who got tired of paying for every lead, and these are the tools I use every week. If they work for you the way they work for me, tell me; if they do not, the refund is seven days and no questions.

Maksim Shchegolev, founder of OperStack · the numbers behind this

Start with the gates

One command on your own site tells you whether you need anything else on this page.

npx @operstack/gates

Frequently asked questions

Which product first?
The free AI visibility check: ten seconds, nothing to install, and it tells you whether there is a problem at all. If your pages live in Markdown files, run the free gates next, because they read every page rather than a sample. Everything paid on this page answers a question one of those two has already raised.
Are the free tools really free?
Yes. Five of the thirteen products are free, four of them MIT licensed with the source public: the gates, the Astro starter, the Claude Code plugin, the MCP server and the AI visibility check. They came out of the pipeline behind the brands on the cases page and they stay free. The other eight are paid, from 9 USD.
Do the tools send data anywhere?
No. The gates, the starter, the MCP server and Pain to SEO run on your own machine, and Pain to SEO never uploads your conversations. The checks that read a site fetch its public pages the way a browser or a search engine would, and the paid reports keep your address only until the email has been sent.