PRICE AND PAGE EVIDENCE

Proof of what a page said, and when.

List the reseller, marketplace or competitor pages you care about. FluxProof checks them on a schedule, tells you when a price drops below your floor or the page changes, and saves a proof packet: the exact page as it was served, its SHA-256 fingerprint, and a timestamp from an independent authority that anyone can check with OpenSSL.

How it works: replace the example with the address of a product page you want watched, for example a reseller listing, and press the button. FluxProof fetches it once, shows the price it found, and creates nothing.

Free. Nothing is saved and no account is made. It shows whether the page can be fetched and the price it declares.

WHO IT IS FOR

When a screenshot is not enough.

01

Brands with a MAP policy

Set a price floor on each reseller page. When a seller advertises below it your dashboard flags it with a packet showing the price, the page and the time, ready to send with your notice.

02

Unauthorized and copycat listings

Keep a record of a listing before the seller edits or removes it. Each packet links to the previous one, so you can show how long a listing ran.

03

Competitor pricing and terms

Keep a record of a competitor's pricing page or terms as they stood at each check, with hashes and an outside timestamp anyone can check with OpenSSL.

THE PROOF PACKET

One ZIP file you can check without us.

Every file is listed with its SHA-256 in files.sha256. The packet's README walks through checking each part with standard tools. Download a real sample packet (a capture of example.com).

page.html
The exact bytes the site served
manifest.json
URL, redirects, time, status, headers, hashes, prices found, your floor
timestamp.tsr
RFC 3161 token from DigiCert or FreeTSA over the manifest
manifest.sig
Ed25519 signature by FluxProof
CHANGE.txt
Before and after, when a page changed

What a packet shows, and what it doesn't

It shows that our server requested the page and received exactly those bytes at that time, that the record existed no later than the outside authority's timestamp, and that it has not been altered since. It does not show what every visitor saw: sites can vary by location, device or login, and FluxProof fetches without cookies or a login. It does not run JavaScript, so it reads prices only from what the page declares in its HTML (structured data, meta tags) or from Shopify's public product data. It is a technical record of what our server received.

Most Shopify, WooCommerce and independent store pages work. Some large marketplaces block automated requests. The free check above tells you before you pay.

PRICING

Monthly, cancel any time.

FluxProof Evidence Starter

$29 a month
  • Up to 25 pages
  • Each page checked every 6 hours
  • A proof packet whenever a page changes, plus one a day while a price stays below your floor
  • Price floor per page
  • Each change read by Claude, which names exactly which watched facts changed, with old and new values
  • Paste your whole page list at once
  • Renews every 30 days until you cancel. We email you the day before each charge, and cancelling is one click

FOR LARGER RESELLER LISTS

FluxProof Evidence Pro

$99 a month
  • Up to 150 pages
  • Each page checked every 1 hour
  • A proof packet whenever a page changes, plus one a day while a price stays below your floor
  • Price floor per page
  • Each change read by Claude, which names exactly which watched facts changed, with old and new values
  • Signed webhooks for your own systems
  • Paste your whole page list at once
  • Renews every 30 days until you cancel. We email you the day before each charge, and cancelling is one click

Already on a monthly plan? Cancel it here in one click, or use the link in any FluxProof email.

Prices in US dollars. If you ask within 7 days of your first payment, we refund it in full. Terms are on the policies page.