Is Woodpecker Tracking Your Email? How to Block It

Key Takeaways

• Woodpecker embeds an invisible tracking pixel in every email it sends by default, with no opt-out for recipients.
• Opening a Woodpecker email logs the event on the sender's dashboard, alongside timestamps and open count.
• Woodpecker also tracks every link click by routing clicks through a custom tracking domain before redirecting you to the destination.
• Gblock's auto updating blocklist covers Woodpecker's tracking infrastructure and blocks the pixel before it fires.

What Is Woodpecker?

Woodpecker.co is a cold email automation platform used by B2B sales teams and recruiters to send personalized outreach campaigns from their own Gmail or Outlook accounts. Because it sends from real personal addresses rather than a mass marketing server, emails bypass many spam filters and land in primary inboxes.

This is what sets Woodpecker apart from tools like Mailchimp or SendGrid: it is designed to look like a human wrote and sent the email individually. The tracking pixel is part of that system — embedded but invisible, recording your behavior whether you wanted to share it or not.

Does Woodpecker Track Email Opens?

Yes. By default, Woodpecker places an invisible one-pixel image inside every HTML email it sends. When your email client loads that image, Woodpecker's server registers the open. The company describes the mechanism plainly in its own documentation: "it automatically embeds a tiny, invisible pixel image within the message. This image is so small it goes completely unnoticed by the recipient."

The pixel is delivered over HTTPS, which helps it reach inboxes that flag unsecured tracking requests. Woodpecker also applies bot filtering — ignoring opens that last fewer than seven seconds — to confirm a human read rather than an automated scanner. Reopens within the first 15 minutes are also excluded to prevent inflated counts.

The sender can disable open tracking per campaign in Woodpecker's campaign editor, but whether a given email includes the pixel is entirely their choice. You as the recipient have no setting and receive no notification.

What Data Does Woodpecker Collect When You Open an Email?

Woodpecker's dashboard shows senders whether you opened the email and how many times, the exact timestamp of each open, and click data for any links in the message. Like most pixel based trackers, the request that loads the pixel also exposes your IP address to Woodpecker's servers, which can be used to infer your general location — city or region level. Woodpecker's own documentation confirms it can show "what time your contacts open emails."

Gmail partially limits this: Google routes image requests through its own proxy servers, which means your precise IP is masked and the sender often sees a Google data center location rather than your real city. The open itself, however, still registers. For a full picture of what senders can see, see our guide on what your email metadata reveals.

How Does Woodpecker's Click Tracking Work?

Open tracking is only half the picture. Woodpecker also rewrites every link in your email through a tracking domain. When you click a link, your browser briefly visits Woodpecker's redirect server, which logs the click, then forwards you to the real destination. Senders can configure a custom tracking domain — their own subdomain instead of Woodpecker's shared infrastructure — which makes tracked links appear to belong to the company writing to you, not a third party tracker.

The practical result: every link click in a cold email tells the sender you engaged, when you clicked, and how often you returned. For a deeper look at how open and click tracking differ in what they reveal, see email open tracking vs click tracking explained.

How to Tell If an Email Was Sent via Woodpecker

Woodpecker emails are hard to identify at a glance because they arrive from the sales person's real Gmail or Outlook address, not a bulk mail server. However, you can check the email source in Gmail (three dot menu, then "Show original") and search for a one-pixel image URL hosted on a Woodpecker domain or a custom tracking subdomain. Tracked links will show a redirect URL rather than the destination site when you hover over them.

If you want a systematic way to spot trackers across all your email, see how to tell if your email is being tracked.

How to Block Woodpecker Tracking in Gmail

There are a few approaches, with different tradeoffs:

• Gblock (most effective): Gblock is a Chrome extension that blocks tracking pixels before they load in Gmail, including Woodpecker's tracking infrastructure. Its blocklist updates automatically, covering new tracking domains as they appear. Because the block happens before any request reaches Woodpecker's servers, the sender sees no open event at all. Tracked links are also stripped.
• Disable remote images in Gmail: In Gmail Settings, under General, then Images, choose "Ask before displaying external images." This stops all tracking pixels from auto loading, but also breaks legitimate embedded images and requires a manual step each time you open an email.
• Apple Mail with Mail Privacy Protection: Apple Mail preloads all email images through Apple's proxy servers, masking your real open time and IP. This fools Woodpecker's pixel into firing at a random time from an Apple server. This only works if you read email in Apple Mail rather than Gmail in a browser.
• Do not click links in cold emails: No tool hides a click if you actually click. To avoid click tracking, do not click, or copy the destination URL from the source and paste it directly into your browser.

For a full comparison of every blocking option including Ugly Email, PixelBlock, and Trocker, see how to block email tracking in Gmail.

Does Gblock Block Woodpecker's Tracking Pixel?

Yes. Gblock maintains a continuously updated blocklist that covers the tracking infrastructure used by cold email platforms including Woodpecker. When a Woodpecker email arrives in your Gmail, Gblock intercepts the pixel request before it fires and strips tracked links so the redirect chain is broken. The sender's dashboard shows no open and no click activity.

Unlike browser-level image blocking, Gblock works without disrupting legitimate email images. You still see any photos or graphics the sender included — only the invisible surveillance pixel is stopped. Cold email outreach is legal and widely used, but you have every right to read your email without your behavior being logged and scored. The tools to take that privacy back already exist.

Sources: Woodpecker on open tracking, Woodpecker on custom tracking domains.