What Is Perplexity?

Perplexity is an AI answer engine: you ask a question and it returns a direct written answer with clickable citations to the sources it used. It is one of the main engines a business monitors for generative engine optimization, alongside ChatGPT and Google's Gemini. Perplexity calls itself the "world's first answer engine," searching the web in real time, and getting cited there depends on being crawlable and clearly written.

What makes Perplexity different from Google or a chatbot?

Perplexity sits between a search engine and a chatbot, and takes the useful half of each. Like a chatbot, it answers in plain sentences instead of a page of links. Like a search engine, it shows where each claim came from.

	Classic search	Plain chatbot	Perplexity
What you get	A page of links	A written answer	A written answer
Shows sources	Yes, as links	Usually not	Yes, inline citations
Freshness	Live index	Training cutoff	Live web search

Every answer carries what Perplexity calls "clickable citations," numbered links you can open to check the source. That is the core difference from a plain chatbot that answers from memory with no references.

The trade you make is the same as with any AI answer. A clear reply saves you time, but you should still open a citation before trusting a claim that matters.

How does Perplexity find its answers?

Perplexity answers by searching the live web, not only from what a model memorized in training. When you ask, it retrieves current pages, reads them, and writes an answer that cites them.

That live-retrieval method is retrieval-augmented generation, the same mechanism behind ChatGPT's cited answers. The engine is only as good as the pages it can reach and read.

The reading is done by its crawler, PerplexityBot. Perplexity's documentation says PerplexityBot "is designed to surface and link websites in search results on Perplexity," and that it is not used to train AI foundation models.

How do you get cited by Perplexity?

You get cited by Perplexity the same way you earn any AI citation: be readable, and answer the question plainly. Perplexity recommends allowing PerplexityBot in your robots.txt so your site can appear in its results.

The rest is answer engine optimization. A page that states the answer near the top, in clear language, on a topic you cover in depth, is the page an engine can quote. The same discipline shapes how AI engines choose citations.

Source breadth is part of why Perplexity matters for visibility. One 2025 analysis of AI search found Perplexity referenced more distinct news sources than Google's or OpenAI's AI answers (arXiv). More sources cited means more chances for a well-written page to be one of them.

The first thing we check when a site wants AI mentions is its own robots.txt. A single inherited block, left over from a plugin or an old setup, can quietly keep every AI crawler out.

Should you allow PerplexityBot?

For most businesses that want to be found, yes: allowing PerplexityBot is what lets your pages appear in Perplexity's answers. Blocking it mainly suits publishers protecting content they sell.

One nuance is worth knowing. Perplexity runs a second agent, Perplexity-User, for fetches a person triggers by asking about a specific page. Its documentation says that agent "generally ignores robots.txt rules," because a user requested the visit.

That mirrors the carve-out OpenAI names for its own user-triggered bot. Whether to open or close the door to any of them is the wider decision in should you block AI crawlers.

Frequently asked questions

Is Perplexity a search engine or a chatbot?

It is a bit of both, which is why Perplexity calls itself an answer engine. It answers in plain sentences like a chatbot, but it searches the live web and cites its sources like a search engine. The practical result is a direct answer you can fact-check against the links beside it, rather than a page of blue links or an unsourced reply.

Does Perplexity cite its sources?

Yes. Every Perplexity answer includes clickable citations to the pages it drew from, which you can open to verify the claim or read further. This is its defining feature and the reason it matters for businesses. When your page is one of those citations, you are named and linked inside the answer a customer is reading.

What is PerplexityBot?

PerplexityBot is Perplexity's crawler for search. Its documentation says it exists to surface and link websites in Perplexity's results, and that it is not used to train AI models. Perplexity recommends allowing it in your robots.txt so your pages can appear. It also publishes its IP ranges so site owners can verify the bot is genuine.

Should I block Perplexity from my site?

Usually not, if you want AI visibility. Allowing PerplexityBot is how your pages become eligible to be cited in Perplexity's answers, which is free exposure to people researching a purchase. Blocking makes sense mainly for paywalled publishers. For an SME whose site exists to be found, an open door serves the goal.

Does Perplexity respect robots.txt?

For its search crawler, yes: Perplexity recommends allowing PerplexityBot through robots.txt and treats a block as an opt-out. The nuance is Perplexity-User, the agent that fetches a page when a user asks about it directly. Perplexity's own documentation says that agent generally ignores robots.txt rules, because a person requested the visit.

Getting your business into AI answers

Storming Solutions runs SEO, AEO, and GEO for Malaysian businesses from Kuala Lumpur. Being citable in engines like Perplexity is part of the same work as ranking on Google.

We think most sites lose AI visibility to a crawler block or a buried answer, not to a lack of budget.

Want to know whether Perplexity and the other engines can read and cite your pages today? Ask us through our SEO, AEO and GEO service, or message us on WhatsApp. The free AI Visibility Report includes a check of which AI crawlers your site currently admits, alongside your core SEO in Malaysia setup.