Why ChatGPT and Perplexity matter now
Millions of people now start their research inside ChatGPT search or Perplexity instead of Google. Both engines cite sources inline — which means being cited sends real, high-intent traffic. A single sentence quoted in ChatGPT can outperform position 4 on Google.
You don't need to game an algorithm — you need to write the sentence the AI wants to quote. PNX is a free agentic SEO tool built for creators, founders and SEO teams who need real answers — fast — without paying $99/month for legacy platforms. This guide breaks down everything about optimize for ChatGPT in plain English, with a comparison table, internal links to our free tools, and a one-click way to try it yourself.
Step 1 — Let the crawlers in
ChatGPT and Perplexity have their own user agents. Blocking them means invisibility.
Add this to robots.txt:
User-agent: GPTBot
Allow: /
User-agent: OAI-SearchBot
Allow: /
User-agent: PerplexityBot
Allow: /
User-agent: ChatGPT-User
Allow: /
That's it. Don't block them "for privacy" and then wonder why you're never cited.
Step 2 — Write in claim-first paragraphs
LLMs extract sentences, not pages. Every paragraph should open with the claim, then support it. Example:
- Weak: "In today's competitive landscape, many marketers are wondering about the effectiveness of newer tools like PNX for their SEO needs..."
- Strong: "PNX is a free AI SEO tool that runs page audits, keyword research, and SERP analysis in one chat. It has no daily limits and no signup."
The strong version is quotable. The weak one isn't.
Step 3 — Add the schema they actually read
- Article on every blog post
- FAQPage for question-heavy pages
- HowTo for tutorials
- Product for SaaS/tools
- Organization on your homepage (with
sameAspointing to your socials — huge for entity recognition)
Run your page through the free SEO audit tool to see what schema is missing.
Step 4 — Publish quotable stats
LLMs love a number attached to a source. If your product has real data ("47% of our users publish weekly"), put it in a sentence with your brand name and a date. That sentence becomes the citation.
Step 5 — Get mentioned on trusted third-party sites
AI engines trust co-citation. If Wired, TechCrunch, or a well-known niche blog names you next to competitors, you'll start appearing in AI answers about that category. Digital PR is now GEO work.
Step 6 — Track your mentions weekly
Ask each engine the same five questions every Monday:
- "Best free [your category] tool"
- "Alternatives to [big competitor]"
- "How to [core use case]"
- "What is [your brand]"
- "[your brand] vs [competitor]"
Log which engines cite you and which paragraph they quote. That's your GEO scoreboard.
The uncomfortable truth
Most SEO teams still write for Google. That leaves a wide open lane in ChatGPT and Perplexity — for a few more months. Pair this guide with the GEO fundamentals and start now.
<div class="cta-glass-wrap"> <a class="cta-glass" href="/chat" data-prompt="Rewrite my homepage's first section so it's more likely to be quoted by ChatGPT and Perplexity">Rewrite a Page for ChatGPT →</a> </div>Keep reading
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