Check a post’s client & account signals

Paste an X/Twitter status URL to see the tweet’s client source, About Account fields, and whether this post looks different from the usual device you’ve checked for that handle.

Caveat: This cannot prove a new device or a new login session. Unusual client ≠ proven hack. X does not expose sessions or hardware IDs on public posts.

How it works

Tweet client

The OAuth client label on that post (e.g. Twitter for iPhone, Twitter Web App).

About Account

Public based_in, install channel (App Store / Play), location_accurate, username changes.

Usual vs this post

Your browser stores a per-handle history of clients you check. Mode of recent sources = “usual.” Accuracy improves as you check more posts.

FAQ

Does UNUSUAL mean the account is hacked?

No. It only means this post’s client differs from the usual one seen in this browser. People switch devices legitimately. Always verify with the account owner.

Why isn’t there a full timeline of devices?

FxTwitter does not expose a cheap multi-post source timeline. We accumulate clients from the posts you paste. Check several posts for a stronger baseline.

Where is data stored?

Baselines live in your browser’s localStorage only. Nothing is uploaded to our server (static hosting + direct FxTwitter API calls).