Highlights

• Deployed across 21 national and regional news brands including the National Post, Financial Post, Vancouver Sun, and Toronto Sun
• Uncovered 67 million adblock pageviews annually — previously off-grid to measurement and monetization
• Unlocked $800k in recoverable annual ad revenue, restoring programmatic and direct-sold inventory

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Business Problem

Postmedia's existing adblock wall was leaving a significant blind spot — a portion of adblocked traffic it couldn't address or monetize.

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Postmedia is Canada's largest news publisher, operating 21 digital properties including the National Post, Financial Post, Vancouver Sun, and Toronto Sun, reaching tens of millions of Canadians each month.

A growing share of Postmedia's audience was disappearing from its ad stack and analytics at different rates, blocked not just from seeing ads but being measured at all.

This hidden segment is known as dark traffic, caused by a new generation of brutal adblockers operating at the browser, VPN, and IT-level across corporate networks and public WiFi providers.

Postmedia already had a "turn off your adblocker" wall in place, a solution that detects standard adblocker users and asks them to disable it before accessing content.

But adblock walls are ineffective against dark traffic, for two reasons:

1. 51% of brutal adblocker users never see adblock walls. The same technology that blocks ads also blocks the wall message before it loads
2. For 57%, ads are blocked at the network or IT-level. They are unable to disable it even if they wanted to. This is due to organization-wide or device-level settings they have no personal control over and cannot override

The result: a blind spot, representing up to 80% of adblock traffic, that the adblock wall was unable to measure and monetize.

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"We knew something was off. Our analytics never felt like they were telling the full story. When we saw research around the scale of IT-level and network adblocking, it all clicked into place." — Liam Nargolwalla, Director, Yield and Monetization, Postmedia

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Objective

The key objective was to quantify and plug the revenue gap left by their existing adblock wall.

To achieve that, the goal was to measure the adblock rate including dark traffic and restore ads through existing ad infrastructure. Restoring ads would monetize their hidden audience effectively, while preserving the same premium, user-friendly experience the rest of their audience already knew.

• Analytics capable of detecting the full spectrum of adblocking methods, including browser-level, VPN, and network and IT-level blocking
• Recovery of both programmatic and direct-sold inventory across the full portfolio
  
• A lightweight integration requiring minimal developer time to set up and maintain
• A user experience consistent with Postmedia's editorial standards
• Rollout at portfolio scale across 21 properties simultaneously

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Solution

Postmedia partnered with Ad-Shield, the only adblock recovery platform purpose-built for dark traffic recovery.

The integration was deployed across all 21 Postmedia properties via a lightweight JavaScript tag and a GAM key-value pair — a minimal implementation that required no changes to Postmedia's existing ad infrastructure.

This also required no changes to the adblock wall already in place. Ad-Shield was set up to plug the gap the adblock wall was unable to measure or monetize.

From day one, Ad-Shield Analytics began detecting and quantifying the dark traffic audience across the portfolio, capturing the full range of blocking methods including browser-level, VPN, and network and IT-level blocking.

At the same time, Postmedia's existing ad stack — both programmatic and direct-sold — was restored to those readers.

Because Ad-Shield restores the publisher's own ad stack rather than introducing alternative ad formats and demand, the experience was designed by Postmedia with their readers in mind. This ensured a positive response, supported by Ad-Shield's own research which found that 85% of dark traffic either expect to see ads or find them tolerable.

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"It was like turning a light on. We started seeing an adblock rate of around 16% across the websites in our portfolio. This is an audience that had always been there, now turned back on and contributing to our bottom line." — Liam Nargolwalla, Director, Yield and Monetization, Postmedia

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Throughout the rollout, both teams collaborated through a dedicated shared Slack channel, enabling real-time coordination between Postmedia's ad operations team and Ad-Shield's technical and customer success team.

Each property was individually reviewed and verified by Ad-Shield before going live, with Postmedia enabling sites on their end and Ad-Shield confirming activation on theirs. Dashboard onboarding, GAM report setup, script updates, and ad slot verification were all handled within the channel, giving both teams a single, responsive space for a smooth launch across all 21 properties.

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Results

Starting with the National Post, all 21 properties were live within two weeks, with revenue recovery beginning immediately.

Postmedia discovered their portfolio-wide adblock rate was 16.4%. A higher figure than they were previously measuring.

On an annualized basis:

• $800k+ in ad revenue unlocked
• 67M+ adblocked pageviews uncovered
• 230M ad impressions reactivated

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Conclusion

Dark traffic is a material problem. At a 16.4% adblock rate across 21 properties, Postmedia had a meaningful and growing gap between the audience it was reaching and the audience it could see and monetize. Ad-Shield closed that gap.

Recovery is also additive. Ad-Shield ran alongside the existing adblock wall throughout, recovering revenue from an audience the wall simply couldn't serve.

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"We've run a lot of initiatives this year. Few have delivered this kind of return for the resource investment required." — Liam Nargolwalla, Director, Yield and Monetization, Postmedia

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