Written by one person, on the record.

Who runs this

I build and write Volatilo, working alone. The collection schedule, the choice of what counts as a signal, the wording of every sentence and the decision about what will never be said are mine, and mail sent to [email protected] reaches me rather than a queue.

Putting my name on it is the point of this page. A site that publishes a derived record of 2,742 listings across 23 categories and names nobody is asking to be trusted on the strength of its typography. If a figure here is wrong, there is someone it is wrong of.

Why it exists

There is no shortage of tools that will show you every price an Amazon listing has ever carried. What I could not find was the other half: whether a product is actually holding its position in its category or losing it, whether a price move is unusual for that particular listing or completely ordinary, and how long the interesting condition has already been running. Those are questions about a record over time, not about a number right now.

So Volatilo takes one reading a week, keeps it with the date attached, and says something only once there is enough behind it to say. Pages here will often tell you the record is too short to answer. That is the design working rather than the page failing.

What it is not

It is not a price tracker. It does not watch a listing for you, does not notify anyone when something moves, and has no alerts, no account and no watchlist you can add to. It publishes what it read on a stated date and stops there. For continuous, high-resolution history — every price change rather than every seventh day — that is Keepa's product, and Keepa is where to get it.

It is also not advice. Nothing here tells you what to buy, when to buy it, or what a company is worth. It describes a past record and leaves the conclusion to you.

How it is paid for

Nothing on this site is for sale. There is no advertising, no paid tier, no sponsored placement and no affiliate link — the link from a product page to its Amazon listing carries no tracking code and earns nothing. Those links are still marked rel="sponsored", which is the conservative marking to use when a link out could be commercial; it costs nothing and is better than asking a crawler to take my word for it.

The running costs are an API subscription and a small server, and I pay for them. If that ever changes — an affiliate relationship, advertising, anything paid — I will write it here first and disclose it on the pages it affects. An independence claimed once and quietly dropped later is worth less than one never claimed.

Independence

No product is on this site because a brand asked for it, and none has been described differently because one did. What appears is whatever sat in the top 100 of a tracked category on the day I read it, plus what recently left one of those lists and is still being watched. I take no submissions, grant no editorial favours, and have no relationship with any seller whose products appear.

Volatilo is not affiliated with, endorsed by, or operated by Amazon or Keepa. The underlying observations are retrieved through the Keepa API and published here as derived weekly signals with Keepa's written consent.

Where AI is used, and where it is not

The software behind this site was built with AI coding assistants. Claude and Gemini both wrote code here — the collectors that fetch each week's readings, the queries that turn them into signals, the page templates, and the checks that fail the build when a rule is broken. That seems worth saying outright rather than leaving to be inferred, on a site that asks people to trust a record.

What it does not mean is that these pages are generated. No language model runs in the pipeline that builds this site. None is called when a page is rendered, none summarises a record, none chooses what a page is allowed to claim, and none has ever seen a reader's request. The sentences are fixed text held in a registry with named slots; the figures that fill those slots are computed from the stored record; and which wording a given product gets is settled by a rule derived from its own identifier. Build the site a hundred times and it says the same thing a hundred times, because there is nothing in it that improvises.

So the words on this site are mine, and so is the responsibility for them. Every claim a page makes I read and approved before it shipped, and when the record and the wording disagree it is the wording that is wrong. The distinction is the ordinary one between the tools used to build a thing and the thing itself.

Where the record actually stands

I began collecting weekly in August 2026, which makes this a young record and worth saying so on the page a reader checks first. A signal that needs a year of history will not appear for a year, and wanting the page to be fuller does not bring it forward.

The same caution governs what I publish to search. Product pages are held out of the index until the record behind them is long enough to carry what they say, and I release them one at a time, by hand, against a fixed test. Held pages stay readable and stay linked — they are simply not offered to a search engine as finished work.

How all of that is measured, and the list of things this site deliberately refuses to publish, is set out in full on the method page.

If something is wrong

A figure that was wrong when it was read is worth telling me about, and so is a product record you want taken down. Both reach the same mailbox; the contact page says what to include so a reading can be traced back to the row it came from.