
I’ve spent over a decade in digital marketing, and popup campaigns are my day job. That means I spend more hours inside popup builders than almost anyone you’ll meet, including the competing ones, because knowing what every tool in this market does well is part of the work. So this is my honest take on …

Published: · Last Updated: June 14, 2026 8:24PM EST We will update this page as our investigation continues. Summary We are responding to a security incident affecting OptinMonster and TrustPulse. An attacker gained access to a credential for our content delivery network (CDN) and used it to serve a tampered version of the JavaScript file …
![[Announcement] Mobile Popup Design: Full Control Over How Your Popups Look on Every Device](https://cdn.optinmonster.com/wp-content/uploads/2026/02/Mobile-Popup-Design-Featured-Image.png)
We’ve heard this one a lot. You build a popup in OptinMonster, it looks great in the builder, you hit publish. Then you pull it up on your phone. The close button is off the screen. The two-column layout didn’t stack the way you expected. The form fields are so oversized and take up the …

Your subject line decides whether your email gets read or deleted. Not your design. Not your offer. Not your copy. The subject line is the first thing your subscriber sees, and if it doesn’t earn the open, nothing else gets a chance. At OptinMonster, I’ve tested subject lines across our own campaigns and studied what …

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