Jun 07, 2026 · 7 min read
Is Your Gmail Tracked? Streak, Yesware & HubSpot
If a salesperson, recruiter, or vendor has emailed you, there is a good chance an email tracker for Gmail is already watching you read their message. Streak, Yesware, and HubSpot Sales are three of the most widely used, and all of them slip an invisible pixel into outgoing mail so the sender sees the moment you open it. This guide explains how each one works, what it captures, how to tell if you are being tracked, and how to shut it down.
An email tracker for Gmail is not a niche tool. It is standard equipment for sales teams, and millions of the emails landing in ordinary inboxes carry one. The recipient is almost never told. Behind the friendly dashboards that show a rep "your prospect opened this three times" sits the same simple trick: a hidden image that phones home when you read. Once you know how Streak, Yesware, and HubSpot do it, spotting and stopping them is straightforward.
Key Takeaways
- Streak, Yesware, and HubSpot Sales are sales engagement tools that embed an invisible tracking pixel in Gmail to report when, where, and how often you open an email.
- All three rely on the same one pixel by one pixel image technique, plus optional link tracking that routes your clicks through their servers.
- The recipient gets no notice and no consent prompt, which is the core difference between these trackers and an official read receipt.
- Gmail's image proxy hides your raw IP but still loads the pixel, so it does not stop the open from being recorded.
- A pixel blocker that stops the image before it loads, like Gblock, prevents all three from ever registering that you read the message.
What Is an Email Tracker for Gmail?
An email tracker for Gmail is a browser extension or add on that tells the sender when their message is opened and read. It installs on the sender's side and rewrites their outgoing email to include a remote tracking pixel. Many trackers also rewrite the links in the message so that clicks are logged too. The recipient does nothing to opt in and is given no way to opt out. To you, it is just an email. To the sender, it is a live feed of your reading behavior.
How Do Streak, Yesware, and HubSpot Track You?
All three use the same foundation, with different dashboards on top.
- Streak is a CRM that lives inside Gmail. Its email tracking adds a pixel to your sent mail and shows the rep a view count and timestamps, sitting right in the Gmail interface they already use.
- Yesware targets sales reps with open and click tracking, plus templates and reporting. It marks tracked emails and surfaces real time open notifications.
- HubSpot Sales ties tracking into a full marketing and CRM platform, logging opens and clicks against a contact record so the whole company can see your engagement history.
The branding and reporting differ, but the mechanism that touches you, the recipient, is identical: a hidden image that registers your open. The same is true of Mailtrack, Mixmax, and the rest, which we cover alongside these in our roundup of email tracker Chrome extensions and how to block them.
What Do These Trackers Actually Capture?
They capture a surprising amount from a single open. The typical dashboard shows that the email was opened, the timestamp of the first open, every subsequent reopen, your approximate location based on the IP address that fetched the pixel, and the device or client you read it on. With link tracking enabled, they also record which links you clicked and when. Stacked over a sequence of emails, that builds a behavioral profile: your reading times, your level of interest, and the best moment to call you.
In a sales context that profile drives the follow up. In a job search or negotiation, it quietly hands the other side information you never meant to share.
How Can You Tell If Your Gmail Is Being Tracked?
You can tell by inspecting the message or by watching the sender's behavior. The behavioral tell is a follow up that arrives suspiciously soon after you open an email. The technical tell is in the message itself: open the original or raw HTML in Gmail and look for a remote image one pixel wide and tall, usually pointing at a tracking or analytics domain rather than the sender's own. Links that route through an unfamiliar redirect domain before reaching their real destination are a sign of click tracking.
Doing that on every email is impractical, which is why the reliable approach is to block the pixel automatically. The line between a tracker and a so called read receipt is thin, and we untangle it in our guide to how Gmail read receipts really work.
Does Gmail's Image Proxy Stop Them?
No, not really. Gmail routes remote images through a Google proxy, which hides your true IP address and rough location from the sender. That is a genuine privacy improvement, but it does not stop the open from being recorded. The proxy still fetches the pixel, so the tracker still logs that the email was opened, just without your precise IP. The result is that Streak, Yesware, and HubSpot continue to register opens for Gmail users unless the pixel is actively blocked.
How Do You Block Email Trackers in Gmail?
- Install a pixel blocker. Gblock is a free Chrome extension that detects and blocks tracking pixels from Streak, Yesware, HubSpot, Mailtrack, and others before they load, automatically, on every email you open in Gmail. Its blocklist updates as new trackers appear. The same goes for the trackers built into sales focused email clients, which we cover in is Superhuman tracking your email and how to block it.
- Turn off automatic image loading. In Gmail Settings, set images to "Ask before displaying external images" so no pixel loads until you choose.
- Be cautious with links. Hover to see where a link really goes, since tracked links route through the tool first.
For a side by side comparison of every method, see how to block email tracking in Gmail.
The Bottom Line
If you have a job, you are almost certainly being tracked by an email tracker for Gmail at some point this week, whether it is Streak, Yesware, HubSpot, or one of their many cousins. They all watch the same way and they all fail the same way: block the hidden pixel before it loads and there is nothing for them to report. A free blocker like Gblock does exactly that across your whole inbox, so opening an email goes back to being private.