Feder and Inspectlet: keep Inspectlet, check the numbers you run on.
No, Feder is not a replacement for Inspectlet. Keep Inspectlet. Feder does a different job beside it: it reads what your connected apps recorded and compares each number with your own history, so you know when one cannot be trusted.
Why would I need this?
Because the question is not what the number is. It is whether you can trust it.
Is Feder an alternative to Inspectlet?
No. Inspectlet records every session and AI tells you what matters. Feder does a different job: it watches the numbers your tools record and says when one cannot be trusted. Nothing here asks you to switch.
Do I need Feder if I have Inspectlet?
They do different jobs, so one does not stand in for the other. Keep Inspectlet for the job it does. Feder's job is to say when a number your tools record has gone quiet or moved outside your own history.
What does Inspectlet do better?
Inspectlet records what happens in the browser during a visit, such as clicks, scrolling, mouse movement and typing, and plays it back as a session.
In Inspectlet's words:
recording all the events that take place in the browser such as keystrokes, mouse movements, scrolling, clicking
How does Inspectlet work? - Inspectlet Docs, read 2026-11-12.Inspectlet works with modern websites, including single page apps.
In Inspectlet's words:
Inspectlet plays nice with all the latest technologies, even if your site is a single page app
My website uses modern technologies, will Inspectlet still work? - Inspectlet Docs, read 2026-11-12.Inspectlet keeps anything a site marks as sensitive out of its recordings.
In Inspectlet's words:
Any data marked as sensitive is excluded from recording
Excluding Sensitive Data - Inspectlet Docs, read 2026-11-12.
What can go wrong with Inspectlet's numbers?
Inspectlet explains that once an account goes over its plan's quota, recording can stop for the rest of that day, or for the rest of the month when quota spreading is off, so visits from that stretch can go unrecorded.
In Inspectlet's words:
Inspectlet stops recording for that day if you have staggering enabled, otherwise for the month.
What happens if I go over my plan's quota? - Inspectlet Docs, read 2026-11-12.Inspectlet spreads a monthly quota across the month by default, which it says keeps the quota from running out early, so recording can stop after some point in the day and later visits that day can be missing.
In Inspectlet's words:
This means that Inspectlet may stop recording data after some time in the day
What happens if I go over my plan's quota? - Inspectlet Docs, read 2026-11-12.Inspectlet keeps recordings and heatmap data for a period set by the subscription, so older data can drop out unless it is exported or downloaded first. This can change. It is what the page said when we read it.
In Inspectlet's words:
Inspectlet stores all session recordings and heatmap data for one month up to a year depending on your subscription.
How long does Inspectlet keep data? - Inspectlet Docs, read 2026-11-12.
How does Feder work with Inspectlet?
- Feder has no connection to Inspectlet today, so it reads nothing from it.
- The two can run side by side: Inspectlet keeps doing its job, and Feder checks the numbers your other tools record against your own history.
- Feder only reads. It never changes anything in a connected app.
What should I ask about my Inspectlet setup?
- Which numbers on my dashboard are counted at the source, and which are modeled or estimated?
- If this number stopped counting tomorrow, who would notice, and when?
- What does a normal week look like for this number, in my own history?
Questions owners ask
- Does Feder replace Inspectlet?
- No. Keep Inspectlet. Feder sits beside it.
- Does Feder send data into Inspectlet?
- No. Feder only reads.
- How accurate is Feder?
- We do not publish an accuracy number yet. When there is a measured one, it will be here with how it was measured.
Where do these claims come from?
Every quoted statement about Inspectlet on this page comes from Inspectlet's own pages, quoted above with the date we read them. We read them again by 2027-02-10. If one changes, this page changes or comes down.