llms.txt implementation, AI crawlability, GEO-aware, our 298-page proof point.
llms.txt + AI-crawlability specialist. llms.txt + llms-full.txt implementation, GEO-aware site architecture, sitemap-aligned LLM index, AI-cite-ready content discipline (factual, sourced, explicit). We run our own implementation across this 298-page site, see ours at /llms.txt. The capability that determines whether ChatGPT / Claude / Perplexity / Google AI Overviews cite you or your competitor.
Four AI-crawlability disciplines.
The protocol, implemented properly
llms.txt at the root, listing the high-value content surfaces with brief descriptions; llms-full.txt with the full content corpus where appropriate. Auto-generated from the site build, kept in sync with sitemap.xml, version-controlled. Our 298-page implementation is the working proof point.
Site architecture for generative engines
GEO (Generative Engine Optimisation), content architecture that ChatGPT / Claude / Perplexity / Google AI Overviews can actually cite. Factual claims, explicit sources, sourced numbers, regulator-aware framing. The opposite of vibes-content. GEO capability →
GPTBot / ClaudeBot / PerplexityBot / Google-Extended
Robots.txt discipline for AI crawlers, GPTBot, ClaudeBot, PerplexityBot, Google-Extended (Bard/Gemini), CCBot, Bytespider. Allow / disallow per crawler, per content surface. Most Australian sites either block everything or allow everything; both are wrong defaults.
Factual, sourced, explicit
AI-cite-ready content discipline, every claim has a source, every number has a methodology footnote, every comparison has a defined frame. The content shape that survives an LLM citation pass and gets quoted with attribution rather than rephrased without attribution.
Where AI crawlability runs across the book.
121group.io llms.txt
Our own llms.txt implementation, auto-generated from the site build across 298 pages. Sitemap-aligned, version-controlled, updated on every deploy.
For Health
Healthcare network AI-crawlability, AHPRA-aligned content discipline, sourced clinical references, GP-referrer-targeted content blocks that LLMs can cite without violating regulatory framing.
PYBAR Mining Services
Industrial capability-content AI-crawlability, sourced project history, safety-record content, principal-engineer thought leadership built for LLM citation in tier-1-procurement research.
- Commercials: Foundation to Growth retainers, typically $3K to $15K/mo. Management fees are named lines, agreed up front. Pricing →
- First 30 days: access, audit and strategy lock-in with the senior strategist who runs the account.
- Days 30 to 90: full delivery cadence live, first performance review, scope confirmed against the cap.
- Who delivers: a senior strategist plus the specialist pod for this service. Month to month, no lock-ins.
Site that should be cited by ChatGPT / Claude / Perplexity?
Thirty-minute call. We'll look at your current AI-crawlability state, your llms.txt implementation, your robots.txt discipline, and your content shape. We'll tell you what's blocking the citation.
Book a Discovery