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Plaintrace
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Trust report

A grade for every number, and the formula behind it

Plaintrace measures what most analytics hides: how much traffic it lost, how much of what it got was not human, and how much of the rest never interacted. Then it turns that into a grade you can recompute.

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The formula

Published, so you can check it

The score starts at 100 and loses points for each kind of doubt. A is 85 and up, B 70, C 50, below that D.

score
score = 100 − 40 × loss
            − 30 × non-human share
            − 20 × zero-interaction share
            − 10 × refused / (received + refused)

A ≥ 85 · B ≥ 70 · C ≥ 50 · D below

Measured loss

weight 40

Page loads your server answered (counted by the server SDK) that never arrived as a tracked page view: ad blockers, privacy browsers, failed scripts. Not measured without the server SDK, and the report says so.

Non-human share

weight 30

Events scored as bot or suspicious: known bot user agents, headless browsers, datacenter networks, inhumanly fast sequences.

Zero-interaction visits

weight 20

Visits with no active time at all: opened, never interacted with. A high share usually means prefetching, link previews or bots that look human.

Refused events

weight 10

Events the collector refused after reading them (invalid names or addresses, too old, heatmaps off), as a share of all events sent.

acme.dev · Last 30 days
Example
Visitors
10,480
+18%
Visits
11,902
+16%
Conversions
318
+9%
Human traffic
98.2%

bots and suspicious traffic kept apart, not deleted

Measured loss
4.1%

12,986 page loads served, 12,453 tracked

Zero-interaction visits
5.3%

opened, never touched

100 − 40·loss − 30·non-human − 20·zero-interaction − 10·refused

What it changes

Decisions that account for doubt

Small samples are flagged

Under 30 visits in a range, every report says percentages can swing widely, so a 50% jump on 6 visits is not news.

Honest visitor counts

Without cookies a visitor counts once per local day. The report says so, and says where people can merge or split.

Bots stay visible

Bot and suspicious traffic is labelled, not deleted. Include it with one switch when you need to see it.

See your own grade.

Free for two sites and 100,000 events a month. Every feature included, no card needed.

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