Perplexity-User (Perplexity)
Fetches on user request · Current version 1.0
What it is
Perplexity-User visits a page when a Perplexity user asks a question, to give an accurate answer and link to the page in the response. Perplexity says it is not used for web crawling or to collect content for training AI foundation models.
Official documentation: docs.perplexity.ai · checked 13 Nov 2026
Perplexity-User user agent
Mozilla/5.0 (compatible; Perplexity-User/1.0; +https://perplexity.ai/perplexity-user)Official documentation: docs.perplexity.ai/guides/bots · checked 13 Nov 2026
Block or allow Perplexity-User in robots.txt
Put these lines at the top of the robots.txt file in your site’s root (example.com/robots.txt). Each subdomain needs its own file.
User-agent: Perplexity-User
Disallow: /
User-agent: Perplexity-User
Allow: /
# repeat here the Disallow lines of your User-agent: * group
If Perplexity-User is not named in robots.txt, it already follows your User-agent: * rules, so you don’t need anything. A group of its own replaces the * group for this bot entirely: if you add one, repeat your general Disallow lines in it.
Perplexity-User IP ranges
www.perplexity.ai/perplexity-user.json
Official list: 10 ranges · published by the owner 28 Oct 2026 · we checked it 13 Nov 2026
Check an IP from your logs
Show all 10
- 18.97.43.80/32
- 18.97.43.81/32
- 18.97.43.82/32
- 18.97.43.83/32
- 18.97.43.84/32
- 18.97.43.85/32
- 18.97.43.86/32
- 18.97.43.87/32
- 34.193.163.52/32
- 44.208.221.197/32
Does it respect robots.txt and Crawl-delay?
robots.txt: not always. Perplexity-User fetches pages on a user’s request, and its owner says robots.txt rules may not apply.
“Since a user requested the fetch, this fetcher generally ignores robots.txt rules.” — Perplexity documentation
Crawl-delay: the owner’s documentation does not mention it for Perplexity-User, so don’t rely on it.
Should you block Perplexity-User?
Usually no. Perplexity-User opens a page only when a person asks Perplexity’s assistant about it, and the answer can link back to you. Blocking it means the assistant cannot read your page for that person.
Check your site
See whether your robots.txt and firewall let Perplexity-User in — together with every other AI bot in this directory. Free, no sign-up.
Other Perplexity bots
Questions
What is the Perplexity-User user agent string?+
Perplexity documents it as: Mozilla/5.0 (compatible; Perplexity-User/1.0; +https://perplexity.ai/perplexity-user)
How do I block Perplexity-User in robots.txt?+
Add a group for it to robots.txt in your site’s root: “User-agent: Perplexity-User” followed by “Disallow: /”.
What IP addresses does Perplexity-User use?+
Perplexity publishes 10 ranges at https://www.perplexity.ai/perplexity-user.json. Requests that call themselves Perplexity-User from other addresses are most likely fake.
Does Perplexity-User respect robots.txt?+
robots.txt: not always. Perplexity-User fetches pages on a user’s request, and its owner says robots.txt rules may not apply.