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Email on Acid is the most affordable, self-serve email testing platform in the world. We can help you maximize the success of your email marketing efforts by diagnosing and improving your renderability, deliverability, click-throughs and conversions. | It is a program run by Google through which website publishers in the Google Network of content sites serve text, images, video, or interactive media advertisements that are targeted to the site content and audience. |
Preview your email in 8 operating systems, 6 web browsers, and 32 email clients - all within one click.;Preview your email before you send it!-
We manage hundreds of servers and mobile devices to deliver you the fastest results possible.;Our Code Analysis identifies individual lines of code that are not supported in each email client.- Discrepancies are classified as critical, moderate, or minor. Critical errors might adversely affect your layout whereas minor errors might include unsupported fonts, alt, or title tags.;Use our library of tips and tricks to resolve issues - fast!- Since 2008, we've documented tons of quirky nuances that you might encounter when developing your HTML email. Details and work-a-round solutions are provided for each individual client, all from within your test result window!;Link & Image Validation- We'll check to ensure that each of your link and image references are valid.;Spell Check- We support English, Spanish, Dutch, German and French!;Character Conversion- Make sure your special characters remain intact using our free conversion tool. Here's more on that topic.;Code Validation (optional)- When it comes to email, WC3 standards are more important than ever! For this reason, we run a pre-flight check on your email before we process your results.;Client Interpretation- Clients like Outlook 2007 & 2010 convert your original source code making it difficult to identify the cause of rendering issues. With this feature, you can compare your HTML - before and after.;Recommendations- Using our library of known tips and tricks, we'll scan through your source code and make recommendations that will improve your renderability. It's a great way to catch something you might have missed while perusing through your test results. | Earn money from your site;Optimize the size of your ad units to automatically fit desktop or mobile, meaning there's more chance they'll be seen and clicked;Add one piece of code to your site and Google will automatically show ads tailored to your site's layout, saving you time making changes to ad code |
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Litmus is a testing service for web and marketing professionals. It allows people to cross-browser test their websites, and test their email newsletters across a range of email clients and spam filters.

We offer one platform that covers all email-related needs in one place: testing, sending, and in-depth tracking to control how email infrastructure works and performs.

Disposable email and fake email capture for QA and development teams

Mailinator is a disposable email service that allows QA departments to test with 1000's of inboxes.

MTN Email Verifier is a high-performance tool for ensuring that your email communications reach the right inboxes every time. With the rise of email marketing and automated outreach, maintaining a clean list of deliverable email addresses is crucial. MTN Email Verifier combines syntax validation, domain checks, and server-level SMTP verification to deliver a reliable, real-time solution.

Betlink is the next-generation platform for buying and selling sponsored articles — fully automated, cost-efficient, and built to scale your digital presence. Connect with verified media, rely on secure Stripe payments, and access deep performance metrics beyond basic analytics, including Search Console data, engagement signals, and authority insights. Strengthen your SEO, grow your visibility, or monetize your influence with a seamless and transparent experience.

Label Up is one of Europe’s leading Google CSS providers, offering fully branded CSS pages and powerful tools to improve Google Ads performance. We work with hundreds of online retailers across Europe, helping them unlock lower CPCs, smarter product segmentation, and risk free incremental revenue through Google Shopping.

AI copilot for performance marketers. Ryze AI manages ads across ChatGPT, Perplexity, Google and Meta. Our AI for marketing reviews your ad data, suggests changes, generates new creatives, and helps you find wasted spend, fix structure, and scale winning campaigns.

Transforms your link into high-performing Meta ads, targeting profitable buyers and optimizing around the clock. Unlock top-tier ad performance with a free 7-day trial.

Is the #1 facebook & google ad software with one goal - to use our proven algorithm to target your ads better so you will never struggle with lead quality again