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Privacy layer for the web

Keep the login.
Lose the tracking.

Websites can remember your session, your cart, and your preferences. They do not need to build a profile of you to do it. Sessyn tells the difference — and enforces it on your device.

Get Sessyn How it works

The difference

Most blockers guess.
Sessyn explains.

Every decision Sessyn makes comes with a reason, a confidence level, and a source. When Sessyn is not sure, it says so instead of acting as if it is. That is the whole product.

_fbp Blocked
Provider
Meta Platforms
Category
Advertising / attribution
Necessary
No
Browser identifier
Yes
Cross-site relevance
Potential
Confidence
Verified

Why blocked. This cookie stores an identifier used to attribute advertising across sites. Removing it does not affect your login.

session_id Allowed
Provider
This website
Category
Authentication
Necessary
Likely yes
Browser identifier
Yes, first-party
Cross-site relevance
No evidence observed
Confidence
Likely

Why allowed. This keeps you signed in. Blocking it would log you out, which is not what you asked for.

Where your data goes

See every destination.

One page load often contacts a dozen companies. Sessyn maps them, names them, and shows which ones it stopped — without sending any of it to us.

shop.example.com First party Allowed
js.stripe.com Payment Allowed
connect.facebook.net Advertising Blocked
www.google-analytics.com Analytics Blocked
www.googletagmanager.com Tag manager Restricted

Not every third party is a tracker. A payment processor and a content network are doing a job you asked for. Sessyn labels rather than alarms.

Activity, kept local

A timeline only you can read.

Sessyn records what happened on your device so you can check its work. The timeline is never uploaded. Clear it whenever you like.

  1. Analytics identifier attempted Known cross-site measurement endpoint. Blocked locally.
  2. Session cookie created First-party authentication. Allowed so you stay signed in.
  3. Advertising endpoint contacted Documented advertising network. Request never left your browser.
  4. Storage identifier created Purpose unclear. Isolated to this site rather than removed.

The promise

Sessyn protects your browsing without building a profile of its own.

0 URLs we receive Classification happens on your device. Browsing events are never sent to us.
0 Cookie values stored Sessyn reads cookie metadata locally to explain it. Values never leave your browser.
0 Accounts required No sign-up, no email, no identifier. There is nothing to link activity to.
0 Third-party scripts on this page No fonts, tags, or analytics from anyone else. Check the network tab.

Read the privacy architecture to see how this is enforced structurally rather than promised.

Choose your intent

Three modes. No dark patterns.

When a site breaks, Sessyn offers the narrowest possible exception — never "disable protection for this site".

Standard

Keep sites working. Stop unnecessary tracking. Named rules only, and it never asks for access to sites.

Private

Named trackers blocked, and cross-site cookies stripped once you allow Sessyn to access sites. The default.

Lockdown

Maximum practical privacy. Unrecognised third parties are restricted. Some sites may break — Sessyn will tell you which part.