p/thechecker-co
Accurate email verification at low prices via web or API
Bernardo Couto

Real-time email validation JS Widget — Verify an email address typed in your form in real-time

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Our free new feature allows you to check emails entered on your forms in real-time with an easy installation and customization process, without needing any coding skills. Improve your bounce rate, sender reputation, and Email Marketing ROI with the JS Widget.
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Raghavender Rao Jitta
@bernardo_couto glad to see @thecheckerco here. Highly recommend this to any PHer looking to clean their list or actively validate form submissions.
Bernardo Couto
@thecheckerco @jittarao Thank you very much! :)
Roberto Robles
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.
Bernardo Couto
@roberto_robles Hi Roberto, it makes me so happy that you love our new feature. Thanks for your great comment, and stay tuned for more exciting updates!
Bernardo Couto
Hi, I’m Bernardo Rocha, co-founder and CEO of TheChecker. First of all, we are very excited to be here and introducing our new feature - JS Widget! It allows you to check emails entered on your forms in real-time. The integration process takes just a few seconds and requires no coding skills. With the new feature, you will be able to customize the icons, error/success messages, and colors to match the look and feel of your website and brand. After installation, you will be able to track and monitor in real-time the quality of the leads captured. Hope we can welcome you to TheChecker, so we can help you achieve your ideal email deliverability rate and Email Marketing ROI! Our team will be available here all day in case you have any questions. Looking forward to your feedback and also working with you, if you so decide!
Matt Carvalho
I've loved this feature! Saves a lot of time, and increases the quality of email lists without having to write a single line of code.
Bernardo Couto
@mateus_r_carvalho1 Hi Mateus, Good to see our customers are happy! Stay tuned for more exciting updates
Angelo Sorbello
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
Albert Ho
This is really awesome! I've seen this feature around before, but it is usually built once and then not well maintained by the e-mail sending vendors. This is by far the best execution I've seen and the most accessible (as an intuitive JS widget)!
Bernardo Couto
@albeho Hey Albert! Really glad you have found it useful! Stay tuned for more exciting new features :D
Atul Kumar
Really a very good email validator, I have not found any other validator which has so deep testing. Filtered reports which is really good for us to get the selected reports.
Bernardo Couto
@worktarget Hi Atul, I am glad we have been able to help! Do try this new feature as it is completely free to use! Take care
Sorina Dascalu
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.
Bernardo Couto
@sorinadascalu Great! Thank you!
Alexandre Ferrari
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.
Bernardo Couto
@aferrari Glad to be of help! Thank you for your kind words Alexandre, great to have you on board!
(dead)
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.
Bernardo Couto
@mcmcmc, thank you very much for your comment! We are super happy to see we are doing our job and customers really see it. Soon we gonna have BIG news to bring you even more value! Stay tuned! ;)
Carlos Ramos
The Checker is just amazing and fantastic. The JS function to realtime check I first use sometime ago and it worked perfectly.
Bernardo Couto
@carlosramos Thank you for your kind words Carlos, our team is working hard to provide our customers with even better products and solutions, so stay tuned! Also, glad you liked the realtime check, now you can personalise it, if you wanted to :)
Maikon Schiessl
I have been using The checker for 4 months. And they are incredible. Open email rates have increased by 15%. Awsome
Bernardo Couto
Hey @maikon_schiessl! Thank you very much for your comment! We are super happy to see customers having REAL and measurable results! Soon we gonna have BIG news to bring you even more value! Stay tuned! :)
LightBridge Agency, LLC
I love, love, love the ease of use for importing large lists and how quickly the results were returned. Highly recommend this for all.
Bernardo Couto
@lightbridge_agency_llc Thank you very much!
Haley Calhoun
Great product, has really helped me whilst doing market research & outreach. Has proven to be very reliable as well!
Bernardo Couto
@haley_calhoun, that's awesome! Great to see you are enjoying it! Soon we gonna have BIG news to bring you even more value! Stay tuned! :)
Jo Miglino
Simply the best email validator! If you are an email marketer you should be using the Checker! It's awesome.
Bernardo Couto
@jo_miglino Such a great remark Jo! Thanks a lot for your support and we will keep working hard to be even better. Stay tuned for new updates!
Daiane Tavares
Show demais a solução, é muito prático para nosso dia a dia corrido, e eficiente também. Recomendo de verdade!
Bernardo Couto
@daiane_tavares Que bom, muito obrigado Daiane
Robert Smith
Love this! Super simple integration and works as advertised. Bought The Checker through the AppSumo deal a while ago and after one test run to see how well it cleaned the addresses I stacked as many codes as I could. It's that good!
Bernardo Couto
@new_user_19019f051d Awesome! Thanks!
Gideon Dave Newell
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.
Bernardo Couto
@gideon_dave_newell Couldn't have put it better myself!
Juan Figueroa
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.
Bernardo Couto
@juan_figueroa Muchas gracias Juan!
Gareth Kemp
Really fast and simple to use -- it's made a difference to our deliverability but also helps prove to new prospects we're about quality too. Highly recommended!