What fstmp records when someone opens a link

Every time a sharing link is opened, a small amount of aggregated technical data is recorded. This guide explains what is recorded, who can see those numbers and what is left out.

Who sees the statistics

Statistics for each file are available only to the service operator, in the admin dashboard. The person who uploads a file receives only the sharing link, and people who receive the link have no access to any usage data.

The operator uses these numbers to monitor storage capacity and investigate abuse, for example when a reported file is being opened a lot. No statistics dashboard is public.

What is counted

Opens are recorded, not people: the same person opening the link three times adds three opens. Visible page time, requested downloads and, for audio and video, playback time, starts and completions are also measured.

Counting depends on a browser loading the page. That is why the automatic previews that messaging apps generate when they receive a link normally do not count.

Where visits come from

The referring domain, when the browser provides it, is grouped along with browser, language, time zone, screen resolution, country, continent and network carrier.

This data is aggregated. The full IP address is not stored, there are no identifying cookies and location is approximate, so it is not possible to tell who opened the file.

Limits

Content blockers and restrictive browsers can prevent events from being sent, so the numbers are a floor, not an exact count. Statistics expire together with the file, 30 days after upload.

To know whether someone received the file, the simplest way is still to ask the person you sent the link to. If the message may not have arrived, resend it through another channel.