Tracker registry

X (t.co)

X (t.co) is a tracker owned by X (Twitter). When a website embeds it, it collects link clicks tied to your X activity.

What it collects

Link clicks tied to your X activity. Because the same tracker appears across many sites, X (Twitter) can stitch those signals into a profile tied to you — often without you ever visiting their app directly.

How to tell if a site uses it

X (t.co) loads from these domains:

t.co

Our free scanner checks any site for these in seconds.