Start tracking in one click
Use your Google account to get started. No installs — and it's completely free.
Sign in with GoogleWe never store the contents of your emails or files.
Pick the breadcrumb that fits how you share — Whohow handles the rest.
Drop a tiny, invisible pixel into any email or document. The instant it's opened, you get pinged with the time and location.
Track every click on links to Dropbox, Google Docs, OneDrive — or anywhere you choose to share content.
Proxy any public image URL and see exactly when and where it loads inside a document or email.
Attach a confidentiality note to an email and watch how often it's actually read — not just received.
No installs, no code, no fuss.
One click — no passwords, no setup required.
Pick a pixel, link, or image and give it a name.
Paste it into an email, doc, or message.
We ping you the second it's opened or clicked.
Use your Google account to get started. No installs — and it's completely free.
Sign in with GoogleWe never store the contents of your emails or files.