check email accessibility guidelines with Campaign Precheck

Take Your Email QA to a Whole New Level: Introducing Campaign Precheck

We’re excited to announce the launch of a brand-new tool in Email on Acid. Actually, now that we think of it, “excited” doesn’t begin to describe how we feel.

We’re thrilled. Jazzed. Keyed up. Pumped. Electrified.

Today, we’re launching Campaign Precheck. This powerful new tool gives you the ability to fix email mistakes during the QA process, even if you don’t know HTML. It helps ensure you’re creating a message that every subscriber  – including those with visual impairments – can read and understand, so you can boost email ROI.

We’ve been in the email game a while now, and we understand that anxiety email marketers and developers feel when they send a campaign. With Campaign Precheck, our goal is to take the anxiety out of sending an email. We want to be there to help you through the process of email QA whether you know code or not, so you can feel confident that your email will look great everywhere.

Try Campaign Precheck Today!

New Features in Campaign Precheck

Campaign Precheck currently includes four new steps in the Email on Acid QA workflow:

We’ll get into details about each of these new tools in a second. First, we wanted to highlight one of the most exciting features of Campaign Precheck: The ability to fix your email code within the Email on Acid platform while working through the QA steps.

That’s right – you won’t need to re-start your QA process every time you need to adjust a piece of your email.

And if you’re not a coding expert, no worries. We’ll help you out along the way and, in some cases, fix the code for you – there’s no need to be an HTML pro to use these new tools.

Oh, and one more thing – we’ve included these new tools in all our current subscription packages.

Email Accessibility Check

According to the World Health Organization, roughly 1.3 billion people worldwide live with a visual impairment. That’s a lot of potential email subscribers. Why not make sure your message can reach them?

Campaign Precheck’s accessibility checklist walks you through nine pieces of your email and helps you make your message more accessible. In some cases, we’ll be helping you optimize the email so it can be easily read by assistive devices or screen readers, such as setting table roles, adding alt text, or specifying a language.

Campaign Precheck accessibility check
Email on Acid’s Campaign Precheck accessibility workflow.


Our accessibility check will also scan your design and check that it can be read and understood by subscribers with visual impairments. We’ll look at contrast ratio, text size, link styling and more.

We’ve talked a lot about accessibility in the past and it’s something we’re truly passionate about, so we’re especially excited to offer this new tool that will help you make your emails more accessible.

Preheader Text Preview

What do job interviews, first dates and email all have in common? The first impression can make or break their success.

Preheader text is the text that shows up next to the subject line in an inbox preview. It can give more context to the subject line and help convince a subscriber to open your message.

Campaign Precheck’s tool allows you to preview your preheader and subject line in 15 of the most popular email clients, so you can make sure your first impression is spot-on.

Campaign Precheck preheader preview
Campaign Precheck’s preheader text preview.

URL Validation

Broken URLs can seriously hurt an email campaign. Sure, your email may reach subscribers, but if they can’t click through to your product or offering, the email won’t bring the ROI you need.

Campaign Precheck’s URL validation tool will scan your message and verify that your URLs load successfully. The tool also gives you the power to upload a spreadsheet with all your email’s URLs, which we can check against your HTML.

The URL validation step will also check your email for blacklisted domains, one of the major red flags for spam filters. The blacklist check will scan all domains in your email and run them through four major blacklist sites. Then, it will show you whether your domains are safe or if they’re listed on any blacklists.

Campaign Precheck URL validation
Campaign Precheck’s URL validation tool.

Image Validation and Image Optimization

Campaign Precheck’s image validation tool allows you to optimize your email images for every platform, so you can ensure that every subscriber can interpret and engage with your message regardless of the email client he/she is using.

We’ll also help you optimize GIFs for your email and give you the opportunity to optimize the first frame of your GIF, which is what will display if the email client isn’t GIF-compatible.

Campaign Precheck image validation
Campaign Precheck’s image validation tool.


The Image Validation feature now includes image optimization, as well. With this tool, you can improve email deliverability and boost engagement by optimizing your images for better download speeds. Image Optimization will:

  • Detect the size of each email image and the download speeds for 3G, 4G, LTE and desktop.
  • Show a download map with the full email download speeds across different networks.
  • Optimize (compress) images that are too large.
  • Provide hosting for the new, optimized images (if needed). No storage limits!

Email Previews

For those of you wondering about our existing Email on Acid tools – we’ve still got ‘em! Once you finish your Campaign Precheck steps, you can hop right in to previewing your email on 70+ email clients and devices, running a spam test, and using email analytics.

Stay Tuned

Do you think this is it for us? No way! We’ll be working hard on improving this new toolkit and adding features to Campaign Precheck in the coming months. Make sure you stay tuned to our blog, sign up for our newsletter, or follow us on social (Facebook, Twitter, LinkedIn) to stay up-to-date on exciting developments.

This post was updated on January 18, 2019. It was originally posted on November 14, 2018. 

Fix email mistakes. No code knowledge required.

With Email on Acid’s Campaign Precheck, you can find and fix email mistakes, even if you’re not an HTML pro. We’ll walk you through accessibility checks, preheader preview, URL validation and image validation, so you can optimize your email for every platform and boost that email marketing ROI. Try it free for seven days!

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Author: Melanie Graham

Born and raised in New England, Melanie has a background as a writer, editor and journalist. After roaming the U.S. as an expert vagabond, she’s landed in Denver as Email on Acid’s content manager. She’s a music nerd at heart who loves spending time at the piano.

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