The Playbook for Authenticating Traffic to Boost CPMs

Advertisers are shifting their budgets toward authenticated traffic—visitors who are identifiable through first-party data like email or phone numbers. When you can prove a visitor is logged in, clicked from your newsletter, or came via SMS, advertisers pay more for that traffic.

The good news? You don’t need to be a giant publisher to take advantage of this. With a few simple steps, you can start collecting first-party data and pass it to advertisers through Ezoic to maximize CPMs and ROI from your ads.

Here’s your step-by-step playbook:

The easiest entry point to first-party data is a newsletter. Here’s how to get started:

Choose a newsletter platform – Tools like Beehiiv, Kit, or Mailchimp make it easy to get up and running.
Set up a landing page – Create a simple page on your site (or through your ESP) that encourages people to subscribe.
- Highlight the benefit of subscribing: e.g., exclusive tips, breaking news, deals, or fresh content.
Drive traffic to your signup form – Use:
- Social media posts (Twitter, LinkedIn, TikTok, etc.)
- Paid ads (Facebook, Google, or even newsletter swaps with other creators)
- Internal CTAs on your site (pop-ups, sidebar forms, or inline opt-ins).
Establish a consistent cadence – Send your newsletter at least 2–3 times per week. Every edition should link back to your site to generate traffic.

Hack: Don’t’ want to grow your list. Consider buying one relevant to your audience + content.

👉 Why this matters: Visitors who click from your newsletter to your site are authenticated users—advertisers bid more for them.

A login system not only unlocks community features, comments, or exclusive content—it also captures first-party data.

Add a simple email/password login option for users.
Offer small perks like saved content, early access, or personalized recommendations to incentivize signups.
For a fast, low-friction hack, use Google One Tap. It lets visitors sign in with their Google account in a single click.

👉 Even a modest number of logged-in users increases your pool of authenticated traffic.

Step 3: Collect Phone Numbers for SMS

Email isn’t the only channel. SMS can be even more powerful for driving repeat traffic:

Add an optional field for phone numbers in your signup forms.
Use SMS tools (like Twilio, Postscript, or your ESP if it supports SMS) to send:
- Alerts for new content
- Exclusive deals or promotions
- Reminders for newsletters or events

👉 Every click from an SMS is authenticated, just like a newsletter click.

Step 4: Sync Your Data with Ezoic

Capturing emails and phone numbers is step one. To monetize them effectively, you need to pass this data back to advertisers. That’s where Ezoic’s Identity & Authentication features come in.

Sync your subscriber list or login form with Ezoic.
Follow the guide here: Ezoic Identity Getting Started.
Once synced, Ezoic will automatically share authentication signals with advertisers—boosting the CPMs on those impressions.

👉 This means the same ad placement on your site can now earn significantly more revenue when shown to authenticated users.

Step 5: Keep Building the Flywheel

Grow your newsletter list: Keep promoting your signup form. The more subscribers you have, the more authenticated traffic you can drive.
Experiment with SMS: Even a small list can produce outsized results since SMS open rates are nearly 100%.
Refine your login perks: Incentivize users to stay logged in and engaged.

Over time, your pool of authenticated traffic grows—and with it, your CPMs.