SendGrid link checker
Paste a link from an email that goes through SendGrid, such as u12345.ct.sendgrid.net/ls/click?upn=… or url1234.example.com/ls/click?upn=…, and we’ll show you where it really goes.
Why SendGrid links can’t simply be decoded
SendGrid is an email-sending service used by thousands of companies, and by some scammers. With click tracking on, every link in an email is replaced with a SendGrid address that records the click and then forwards you.
The real destination is stored and encoded by SendGrid, so it can’t be read from the link text. The only way to see it is to follow the link, which our tracer does from our server, not your device.
Following a tracking link still counts as one click for the sender. It comes from our server, so it doesn’t reveal your IP address or device, but the sender may see that the link was clicked.
What this decoder handles
- u123456.ct.sendgrid.net/ls/click?upn=… links
- Branded tracking domains such as url1234.example.com/ls/click?upn=…
- Older sendgrid.net/wf/click links
Questions
Is an email with SendGrid links a scam?
Not necessarily. Many genuine companies send through SendGrid. Judge the email by where its links lead and what it asks you to do.
Why does my SendGrid link show “wrong link” or not work?
The sender’s tracking domain may be misconfigured, or the link may have expired. If the trace ends on a SendGrid error, the problem is on the sender’s side.
Can you decode the upn= value?
No. It is SendGrid’s own encoding of the link, so following the link is the only reliable way to see the destination.