Email tracker for Gmail, without the pretence
Know if your email was opened.
Know when the answer isn't reliable.
Honest email tracking for Gmail. See opens and link clicks directly in your inbox — without giving us access to your mailbox.
Free plan, no credit card required.
Updated proposal
10:58to Maya Chen
Hi Maya,
I made the changes we discussed and attached the updated proposal.
You can review the final scope here:
Best,
Alex
2 reliable opens · Last detected 6 min ago
A human read can't be confirmed.
Link opened from the message body.
An open isn't always an open.
Apple can preload an email. Security software can inspect it. Mail providers can fetch remote images before a person ever sees the message.
Most trackers count everything.
Openn tells you what the signal actually means.
Typical tracker
Opened 7 times
No explanation.
Openn
- 1 reliable open
- 4 Apple preloads
- 2 security scan
Same activity. A more honest answer.
Signal confidence
Five states. Each one says exactly what it knows.
Opened by a person, through Gmail's image proxy: the count follows actual views.
Opened, but the mail app kept the image after the first load. The count is a minimum.
Apple fetched the message automatically. A human read can't be confirmed.
A security system appears to have opened or checked the email or link.
No signal from a person yet. That is not the same as unread: images may be turned off.
Several recipients? The result is marked Global tracking: at least one of them opened it. Openn never claims which one.
Tracking should feel like part of email.
No CRM to maintain. No analytics cockpit to check. Send email exactly as you already do. Openn quietly adds the signal to Gmail when there's something useful to know.
01 — Compose
Track opens and links in this message.
02 — Send
SendGmail's native Send stays exactly as it is. Email first. Tracking second.
03 — Return later
The signal sits next to the email in Sent mail.
04 — Link clicked
Proposal link clicked 14:42Links inside the message body report their own clicks.
Send normally. Check normally. Openn stays out of the way until there's something useful to show.
We don't need your inbox.
So we don't ask for it.
Email tracking doesn't require us to read your email.
Openn is designed to collect the minimum amount of information required to provide email tracking.
No mailbox access
Google Sign-In identifies your account. Openn does not need permission to read your Gmail mailbox.
No email content stored
We don't store your email subject or body.
No raw IP storage
IP addresses may be used momentarily to classify a tracking event, then discarded.
No raw User-Agent storage
Browser and mail-client information is used for classification, not profiling.
Hosted in Europe
Core account and classification infrastructure is hosted in the EU.
12-month event retention
Tracking hits are automatically removed after the defined retention period.
Gmail
Your message stays in Gmail
→ Tracking signal
Only the minimum tracking event is sent
→ Openn
Signal classified → raw IP / UA discarded → result shown in Gmail
Never stored:
Subject · Email body · Raw IP · Raw User-Agent
Stored only when needed:
Tracking token · Classified event · Link destination
Your email.
Your domain.
Your tracking.
With Openn Pro, tracking can run through a subdomain you control — instead of a shared third-party tracking domain.
- More consistent branding
- Greater control over tracking identity
- Isolates your tracking hostname from unrelated users
- Professional experience for client-facing communication
Available on Pro
Default
track.openn.example/o/...
Pro
mail.yourcompany.com/o/...
The tracking you actually need.
Open signals
Know when a meaningful open was detected, and when the latest one happened.
Confidence labels
Understand how much you should trust the signal.
Link clicks
See when links inside your message are clicked.
Inside Gmail
No separate analytics workflow.
Tracking exclusions
Choose domains whose links Openn leaves alone.
Custom domain
Use your own tracking subdomain on Pro.
Notifications
Optional Pro notifications for useful events.
Multiple Gmail addresses
One Openn account can support multiple verified Gmail addresses.
Simple enough to keep installed.
Start free. Upgrade when you want more control.
Free
€0
No credit card required
- Email open tracking
- Link tracking
- Confidence labels
- Gmail integration
- Openn attribution
Add to ChromePro
Best for regular email users€3 / month
€36 billed annually · €4 monthly · excl. VAT
- Everything in Free
- No Openn attribution
- Custom tracking subdomain
- Notifications
Questions worth answering precisely.
Does Openn read my Gmail inbox?
No. Openn is designed to work without Gmail mailbox-reading permissions. Google Sign-In is used to identify and verify your account.
What does “Reliable” mean?
It means every open came from a person, through Gmail's image proxy, which fetches the image each time the email is displayed, so the count follows real views. When an open comes from an app that keeps the image after the first load, Openn shows an Estimate instead: at least that many opens. Email tracking can never provide perfect certainty, so Openn shows confidence instead of pretending otherwise.
Why can Apple opens be unreliable?
Apple Mail Privacy Protection can fetch remote images automatically. This can trigger traditional tracking pixels even when the recipient has not actively opened the email.
Can Openn tell exactly which recipient opened a group email?
Not in the first version. For emails with multiple recipients, Openn clearly labels the result as global tracking.
Does Openn store my email content?
No. Openn does not store your email subject or body.
Does Openn store recipient IP addresses?
Raw recipient IP addresses are not stored. They may be used briefly to help classify an event and are then discarded.
Where is Openn hosted?
Core backend infrastructure is hosted in Europe.
What happens if I disable or delete my Openn account?
If you turn tracking off or remove the extension, new emails are no longer tracked; emails you already sent keep their links working and their results stay in your account. Accounts with no activity for 24 months are deleted, with an email 30 days before. Deleting your account deletes your data and kills every tracked link immediately: a recipient who clicks an old link lands on a plain “link expired” page, never the destination, and opens stop being reported. Openn warns you explicitly before deletion, because this cannot be undone.
Can I use my own tracking domain?
Yes, on Pro. Links and the tracking image are then served from a subdomain of a domain you control, set up with one DNS record.
Does Openn work outside Gmail?
The first version is focused on Gmail in Chrome.
I installed Openn and nothing happened. What now?
That is expected: Openn lives inside Gmail, not in a window of its own. Open Gmail in Chrome, reload the tab, and sign in from the Openn banner at the top of your inbox. The two-minute setup guide walks through each step, with what to check if the banner does not show.
Where do I see if my email was opened?
In your Sent folder. Each tracked email carries a small badge next to its subject, and opening the email shows a line above the message with its opens and clicks. Your own opens are never counted.
Send the email.
Know what happened next.
Useful email signals, without the surveillance theatre.
Built for Gmail. Hosted in Europe.