Install the script
Paste this before the closing body tag. Collection starts immediately, with no site id.
<script async src="https://collect.justcheck.io/script.min.js"></script>Privacy-friendly analytics
Cookieless analytics
JustCheck records pageviews, sources, devices, time on page, paths, goals, and JavaScript errors. One script goes on every site. It sets no cookie, keeps no visitor id, and stores no IP address.
How cookieless analytics works
Paste one script
The same snippet runs on every site. The hostname is the key, not an account id in the tag.
Claim the domain
Register and claim the hostname. If nobody else owns it, the history already collected opens up.
Read the dashboard
Compare a period with the one before it, and use the same filters on every report.
What JustCheck measures
Aggregated counts only. Nothing here identifies a person.
Pageviews and time on page
Counts of views, plus the average time the page stayed in the foreground.
Sources and campaigns
Referrer and utm source, medium, campaign, and content. The search term is dropped.
Entry pages and paths
Where a visit starts, and which of your pages sends people to which other page.
Devices and countries
Browser family, operating system, device, and country from the time zone.
Goals
A matching URL, or a named event from sa.event. Both are counts, not per-person conversions.
JavaScript errors
The message, file, and line. No stack trace, and only a few errors leave each page.
Dashboard preview
Sample data, drawn with the same charts as the app.
Pageviews
Sources
What stays off the visitor
No cookies
Nothing is written to the visitor's device. No localStorage and no sessionStorage.
No visitor id
A page id lives in memory for that view and dies when the tab closes. Returning visitors are not tracked.
No IP address
The address is dropped when the request ends. It is not stored and it is not hashed.
Questions about JustCheck
Does JustCheck use cookies?
No. The script does not set a cookie, and it does not use localStorage or sessionStorage. There is no visitor id, so a later visit is not recognized as the same person.
Does JustCheck store IP addresses?
No. The IP address is dropped when the request ends. It is not stored and it is not hashed. Country comes from the browser time zone, not from the IP address.
Do I need a consent banner for JustCheck?
JustCheck sets no cookie and stores no visitor id, fingerprint, or IP address, so the script itself does not ask for a consent banner. Other tools on the same site can still require one.
How can one script run on every site?
The snippet has no site id. JustCheck keys traffic by the hostname that sent the pageview. You register, then claim that hostname. If nobody else owns it, history already collected is included.
What is an internal path?
An internal path counts pageviews whose referrer is another page on your site, such as /recipes to /. It is an aggregate edge, not a personal session and not a recording of one person's clicks.