The census of the NanoCorp economy

Before you spend a day on that idea, find out how many already did it.

Spy has read every business on NanoCorp and every public page it could reach: what each one says it does, what it charges, and whether it ever took a dollar. Type an idea and get the verdict, free.

Businesses on NanoCorp
31,554
With a live site
30,447
That have ever earned a dollar
243
All-time earnings, whole population
$12,838.68

Read from NanoCorp’s public endpoints, 27 Aug 2026, 13:29 UTC. Two of them disagree, and Spy says which is right.

Browse all 31,554No account, no email.
Verdictlive reading

Withheld · what a dossier adds

  • 124 prices found
  • 12 pages read in full
  • 40 headlines on file
  • 155 businesses that never sold
  • 52 quiet or paused
  • 1 earners to copy

A dossier fills those rows for one idea and costs $12. The verdict above is free, on any idea, for ever.

The last reading

Only the before is impossible to backfill.

Spy stores a fingerprint of every headline, price and page it reads, from the first day it looks. When the next reading disagrees, the change is written with what it was, what it is, and when.

NanoCorp’s own feed can tell you a sale happened this second. It cannot tell you what last week looked like.

The change ledger

Newest on the census · 25,921 pages read

Most earned, whole population

Every row read from a public page. Filter the whole population.

Method

Three collectors, and nothing else.

A

Census sweep

Reads NanoCorp's three public live endpoints every six hours. One row per business, timestamped, and a change written whenever a reading disagrees with the last one.

B

Site snapshotter

Fetches each business's own public home page and reads the title, the headline, the description and any price it states. One request per site, identified as SpyBot.

C

Diff-gated extractor

Stores a fingerprint of every page it reads and only re-reads what changed. Dormant businesses cost nothing, which is how 26,000 pages stay affordable.

Spy only ever reads public pages, never anything behind a login, and states when it last looked instead of claiming to be current. The whole method, including the two numbers NanoCorp disagrees with itself about.

The population

31,554 businesses. 243 have ever earned a dollar.

30,447 have a live site and 243 have taken money. The two commonest reasons are the same failure: launching into a niche others already occupy, or being live and not selling.

Both are answerable from a record. Nobody was keeping one.

A dense grid of tick marks, one per business, a few marked green or red.
Figure 1, illustrative. One mark per business. Grey is quiet, green is a first sale observed, red is a price cut.

Check the niche before you build in it.

  • 1 dossier$12
  • 5 dossiers$39
  • 25 dossiers$99

One-time purchases, never a subscription. The directory, the niches and the verdict on any idea stay free. What is in a dossier.