Perplexity Remembers This Week
01One engine rewards what you did on Tuesday
Almost everything yesterday's entry said about ChatGPT is wrong for Perplexity. Perplexity names brands in roughly 13% of its answers against ChatGPT's 0.6%, and the difference comes from two places: how heavily it weights recent pages, and how much it leans on community discussion, Reddit above all. In the research I rely on, fresh pages earn around 6 citations against 3.6 for stale ones. Perplexity asks what is true now. ChatGPT asks what has been true for a while.
Two crawlers, and only one of them asks permission
PerplexityBot builds the index Perplexity searches. Perplexity says it respects robots.txt and is not used to train foundation models. Perplexity-User is the fetch that happens when somebody asks a question, and because a person requested it, Perplexity says it generally ignores robots.txt. The order matters: blocking the first quietly removes you from the pool the second is choosing from, which is why naming the crawlers you welcome beats trusting a wildcard somebody wrote for scrapers. Block the index and the live fetch has nothing left to find.
The community half of that difference is the part most sites skip. A recent thread where somebody asked for alternatives in your category is exactly the kind of page a recency engine reaches for, because it is dated, opinionated and written by somebody who is not the vendor. You cannot publish that thread yourself. You can be the name that comes up in it, which is slower work than writing, and no update schedule replaces it.
02What a recency engine looks like from the server
It went quiet when I did
On this blog, PerplexityBot made 32 requests across fifteen days of August, a stretch when a new entry went up every morning. In the first half of September I published one entry here, and it did not request a single page. Across the other sites on the same server, which kept shipping through those two weeks, requests identifying as PerplexityBot came to 6,251. That matches what I noticed a month in, that crawling here follows publishing days rather than the calendar, and Perplexity follows it more tightly than anything else in my logs.
Reads are not visits
The live fetcher is far busier than the referrals suggest. Over those same two weeks, requests identifying as Perplexity-User came to 3,167, while visits arriving from Perplexity itself came to 53. Those are declared names rather than verified addresses, so read them as a shape, not an audit, but the shape is hard to argue with. On my sites, Perplexity fetched a page about sixty times for every visitor it sent. The engine is consulting you constantly and forwarding almost nobody, which is worth knowing before you judge it by its traffic.
Freshness is not a date on the page. It is evidence that something on the page changed.
03Give it something new that is also true
Date the change, not the page
The cheap version of freshness is changing the date. It is also the version that teaches an engine to stop believing your dates. What counts is a visible, specific change: a new figure, a new section, a correction with the day it was made. Put the updated date where a reader can see it and in the structured data, and make sure the thing it describes actually happened. A new date on an old page is a claim you cannot back.
Keep the instruction files as fresh as the articles
A recency engine can only reward what it can reach while it is still recent. The sitemap, the robots file and the other files crawlers obey should change the moment a page does, because a stale copy of an instruction file sits between you and every fetch. Then announce the change through a ping instead of waiting to be rediscovered.
The pages that suit a recency engine best are the ones built to change: a monthly figure, a changelog, a tracker, an explanation of how something works this quarter. A small information site I run publishes a price table every month with the edition date at the top, and within weeks of its first edition it was one of the five pages AI assistants fetched most on that site. Nothing about it is clever. Every month it genuinely says something that was not true the month before.
One honest limit before anybody rewrites their blog every Tuesday. Chasing recency rewards churn, and a site that republishes the same article weekly to look busy is serving one engine at the expense of the one with the long memory. The two entries are meant to be read together: durable definitions for ChatGPT on the pages that should never change, dated updates for Perplexity on the pages built to.
Tomorrow: the engine least likely to name anybody, and why that makes its recommendation worth the most.
>How do I get cited by Perplexity?+
>What is the difference between PerplexityBot and Perplexity-User?+
>Does updating the date on a page make Perplexity cite it more?+
>Does Perplexity send much traffic?+
Abd Shanti. "Perplexity Remembers This Week" CITED, Entry 047, Sep 9 2026. unknown.ps/blog/perplexity-remembers-this-week/
