TheChecker.co

The JS Widget is the most amazing part of TheChecker, love how simple it is and it just works! It helps keep my registration database clean. Love it.

I tried a lot of these tools but TheChecker beats them all. Perfect UX, the verification works great and offers several options for exporting. 10/10

Really useful. I got a deal on Appsumo exactly when I needed to perform some list higiene. It worked perfectly! I don't do email validations very often so I love the fact that they have a credit system and not a subscription sistem.

Love TheChecker. Looking forward to trying this out!

I'm using in the last ~6 months and I already recommended a lot. =) It's an easy go for the team to check before any email mkt campaign.

It's easy to use, when I was searching for an e-mail checker tool it was the one that looked more reliable, and it really is. The support is fast and effective. I surely recommend this product and company.

I've been using this JS validator on my websites for newsletter signups and it's definitely helping people see that they've made a typo --> so my list is cleaner.

TheChecker, es una herramienta grandiosa muy facil de utilizar y eficiente. Yo la utilizo desde hace casi un año ya y estoy encantado con las API de conexión y otras herramientas de integración que ofrecen. Realmente muy buenos. Los recomiendo totalmente.

Users are more suspicious than ever, and the once-fringe idea of inputing a fake email address has become A LOT more common. The widget stops that behavior right at the form, and keeps your lists clean and deliverable.

São sensacionais, tanto em termos de produto quando em atendimento. Um produto muito confiável e escalável. TheChecker sempre leva os feedbacks de seus clientes em conta, quando vão desenvolver algum produto. Forte abraço Bernardo.