Install logcohort

logcohort records sessions through one script tag. The snippet defines a tiny command queue (window.logcohort) and loads the recorder asynchronously — it never blocks your page. Your project key lives in the dashboard: Project → Install, where the snippet is generated with the key already filled in.

<script>
window.logcohort||(function(d){
  var o=window.logcohort=function(){o.api.push(arguments)};o.api=[];
  var c=d.createElement('script');c.async=true;
  c.src='https://app.logcohort.com/recorder.js';
  d.getElementsByTagName('head')[0].appendChild(c);
})(document);
logcohort('init','lc_YOUR_PROJECT_KEY');
</script>

Pick your platform

Any website (plain HTML) — paste before </head>.
Next.js — inline script in the root layout (and why not next/script).
Google Tag Manager — no code change, no deploy.

Verify it works

Publish the change (or just open your site locally if the origin is allowed).
Visit your site and click around for a few seconds.
Open the logcohort dashboard — the session appears within seconds.

Privacy defaults: everything visitors type is masked in their browser before transmission, and network capture records method/URL/status/duration only — never request or response bodies. Ingest also checks your project's origin allowlist, so a leaked key can't record from an unknown site.

Next step: identify signed-in users so sessions show a name instead of an anonymous visitor id.