Fx

Scan a business before you buy it.

Paste the business’s own website. The free scan reads what is public and prices what it finds.

Every finding is priced against it.

Free. No account needed. About ten minutes.

What happens after you start

  1. 01We read the business

    Its pages, the code it sends to visitors, and the servers, DNS and certificate behind it.

  2. 02We find the holes

    Leaked keys, open data, unprotected endpoints, forgotten deployments, features that do nothing.

  3. 03We price them

    Each finding in dollars, and what that takes off the asking price.

All 34 checks, with the source behind each →

Start with what you can see. Verify what you can’t.

URL scan

Free always

You give it the website address. It reads:

  • The site, and the code it sends to every visitor
  • Servers, DNS and the certificate behind it
  • Leaked keys, open data and unprotected endpoints
  • Forgotten deployments and leftover files
  • Who holds the domain, hosting and email

20 checks, and a priced report.

No account and no card, and no limit on how many you run. The seller is not told.

Seller-data scan

$99 per scan

The seller connects whichever of these they agree to:

  • Revenue, churn and expiring discounts, from their payment records
  • How much of the traffic is bought
  • Refunds, and whether customers buy twice
  • Who wrote the code, and who can still change it

14 more checks, with revenue measured from their own records.

Charged only when you run it. Asking the seller costs nothing. Pricing →

What the seller is asked for

  • Read-only

    Nothing can be changed, moved or charged.

  • Their choice

    Each platform is granted or skipped on its own.

  • Used once

    Our copy of the access is deleted when the scan finishes.

  • Never passed on

    You get a report, not their logins or keys.

...before you scan

The listing does not show the site’s address.

Ask the seller for it. Most marketplaces hide the domain until you are in conversation, and F(x) will not guess - scanning the wrong company is worse than scanning nothing.

Is it allowed, on a site I do not own?

The free scan reads what your own browser fetches when you visit, plus the public registry, DNS and certificate records. Nothing signs in, and nothing tries a password.

Where do the dollar figures come from?

Published reference tables, cited beside the finding they priced. Each figure says whether it was measured on this site or taken from an industry average.

Will the seller know I scanned them?

It reaches their site as one ordinary visit and nothing in it names you. They hear from you only if you send the access request, which is your decision to make from the report.

What happens to a check that cannot run?

It is reported as a gap, never as a pass. The report lists every check and which of three things it did: ran clean, found something, or could not run.

Scan the business, then make the offer.One web address. Free to start, and the seller is not involved.Start free scan