How to Add Slide-In Calls-to-Action to Your Blog Posts [Tutorial]

How to Boost Blog Conversions with Slide-In Calls-to-Action: The Ultimate Guide

Most bloggers are familiar with placing calls-to-action (CTAs) at the end of their posts to drive newsletter signups, content downloads, demo requests, or other important conversions. But did you know that slide-in CTAs appearing in the middle or side of a post tend to significantly outperform static bottom-of-post CTAs?

In this comprehensive guide, we‘ll break down everything you need to know about leveraging slide-in calls-to-action on your blog. From what they are and why they work so well to step-by-step instructions for implementing them yourself to best practices and examples for inspiration, you‘ll learn how to use this powerful but often underutilized tactic to skyrocket your blog‘s conversion rates.

What Are Slide-In CTAs and Why Should You Use Them on Your Blog?

A slide-in CTA is a call-to-action box or banner that "slides in" from the side or bottom of the browser window after a user has scrolled down a certain length of the blog post. Unlike a static CTA at the very end of the post, a slide-in CTA appears earlier on while the reader is still actively engaged with the content.

Here‘s an example of what a slide-in CTA looks like:

[Insert example image]

The key advantages of using slide-in CTAs on your blog posts include:

  1. Higher visibility and engagement. By appearing while the user is in the middle of reading, slide-in CTAs are more likely to grab attention compared to CTAs at the very end that many users never scroll down far enough to see. If a reader is interested enough in your post to read at least halfway through, chances are they will be receptive to your related CTA offer.

  2. Less intrusiveness and annoyance compared to pop-ups. While pop-up CTAs can be effective, many users find them disruptive and annoying. Slide-in CTAs are a bit more subtle and less in-your-face while still being prominent on the page. The animation also helps draw the eye in a way that feels smooth.

  3. No distracting from main content. Since slide-ins usually appear from the side and not on top of the text, they don‘t cover up the post content even when a user is in the middle of reading. Compare this to scrolling pop-ups which can obscure text.

  4. Space for more compelling copy and imagery. Compared to a small linked line of text at the end of a post, slide-ins provide a bigger canvas to hook the user with persuasive copy, enticing visuals, contrasting colors, and strong calls-to-action. You have more room to sell the value of the offer.

  5. Personalization opportunities. Using page-level targeting, you can serve up different slide-in CTAs tailored to the content of each individual post. This makes the offer feel more relevant and timely to what the user is engaging with at that moment.

When HubSpot first started testing slide-in CTAs on their blog, they found that they converted 192% better than traditional end-of-post static CTAs. While the actual lift will vary based on your audience and offers, there‘s no doubt that slide-ins can make a huge impact on converting more of your blog readers.

So how do you go about implementing slide-in CTAs on your own blog? Let‘s walk through the process step-by-step.

How to Implement Slide-In CTAs on Your Blog

The easiest way to add slide-in CTAs to your blog posts is by using HubSpot‘s free Lead Flows tool (which is what we‘ll focus on in this tutorial), but there are also several WordPress plugins like Holler Box that support this functionality.

To get started with Lead Flows, you‘ll first need to sign up for a free HubSpot account if you don‘t already have one. Then navigate to Marketing > Lead Capture > Lead Flows in your HubSpot dashboard.

Click the "Create lead flow" button and select the "Slide box" format option. Now you‘re ready to build your first slide-in CTA!

Step 1: Craft a compelling offer and copy.
The most important part of any effective CTA is nailing the offer and messaging. What will you present to the user that is relevant, valuable, and enticing enough for them to want to click and convert?

Some ideas for slide-in offers related to your blog content:

  • Content downloads (ebooks, whitepapers, templates, etc.)
  • Email newsletter signup
  • Free course or toolkit
  • Webinar registration
  • Demo or free trial signup
  • Discount or free shipping

In the Lead Flow builder, you‘ll input the Callout Title and Callout Body copy. Treat the headline like you would an email subject line or paid ad headline – make it punchy, urgent, and clear about the value for clicking.

The body copy should concisely convey why the user would want your offer and include a strong verb to inspire action. Avoid bland generic copy like "Download Now" in favor of specific benefits.

Here‘s an example of compelling slide-in copy from the HubSpot blog:

Callout Title: Get Our Free Guide on Business Blogging
Body: Learn how to create content that generates leads and drives sales.
CTA Button: Send Me the Guide!

Step 2: Design an eye-catching creative.
The look and feel of your slide-in CTAs matter a lot. You want it to stand out on the page and grab attention while still fitting the overall visual style of your brand.

In the Callout section of the Lead Flow builder, start by uploading a high-quality feature image. Make sure it‘s relevant to the offer. Faces, eye-catching graphics/icons, and bright colors tend to work well.

Then customize the color scheme of the callout box and button. Contrasting colors that pop against your blog template or background will help it get noticed.

Keep the design clean and benefit-focused. Don‘t clutter it up with too many extraneous elements besides the image, headline, body copy, and CTA button. Let the value proposition shine through.

[Insert example image]

Step 3: Set your targeting and triggering rules.
Next, decide where and when your slide-in CTA will appear using the Options and Targeting tabs.

In the Options section, the key selections for slide-ins are Appear and Frequency.

The Appear field lets you choose the user action that triggers the slide-in. Selecting "Time on page" will make it pop up after a user has been on the post for a certain number of seconds. Choosing "Scroll percentage" will trigger it when the user has scrolled down X percent of the page height.

The right option depends on how long your typical posts are and how fast readers consume them. You generally want to wait at least 10-20 seconds so the user has started reading. For scroll percentage, 50% is often a good starting point but test what works for you.

The Frequency setting lets you control how often a user will see this CTA. For example, "Once a week" means if someone closes it out, they won‘t be shown the same slide-in again for 7 days if they revisit your site. Consider how often you post and how quickly your offers change.

In the Targeting section, choose which specific blog posts or pages you want this slide-in to appear on. You can target all posts, posts that meet certain criteria, or hand-pick individual URLs.

For example, if you had an ebook on SEO tips, you could target only your blog posts in the SEO category. Or if you were promoting an upcoming social media webinar, you could select only recent posts about social media topics.

The more you can align the CTA offer to the content of the post, the better it will convert. Don‘t just blast the same generic slide-in on every post.

Step 4: Measure performance and optimize.
Once you publish your slide-in CTA, keep a close eye on performance. HubSpot makes it easy to track views, clicks, and submission rates right from the Lead Flows dashboard.

Look at metrics like the view-to-click rate (what percentage of users who saw the CTA clicked it) and the click-to-submission rate (what percentage of users who clicked actually completed the form). A high view-to-click rate but low click-to-submission rate, for example, could indicate your offer and CTA copy are compelling but your form is too long or complicated.

To optimize your slide-ins over time, run A/B tests changing different elements one at a time. Try two different headline variations, two different images, different triggers, different color schemes, etc. and see which gets more engagement.

Also, make sure to regularly refresh your slide-in offers so repeat visitors aren‘t seeing the same ones over and over. Promote your latest content, not something from two years ago. Update the copy and creative to keep things feeling timely.

By diligently tracking, testing, and iterating, you can find the slide-in formats that resonate best with your particular blog audience. Just be careful not to overdo it with too many slide-ins or overly aggressive targeting that could start to annoy people.

Slide-In Call-to-Action Best Practices and Examples

Now that you know the mechanics of implementing slide-in CTAs, let‘s look at some best practices and examples for getting the most out of them.

Best practices:

  • Craft copy that is short, action-oriented, and conveys a clear benefit to clicking
  • Use human or expressive images that grab attention and relate to the offer
  • Set frequency caps so users aren‘t bombarded with the same CTAs repeatedly
  • Avoid interrupting the user‘s reading flow by placing CTAs too early or aggressively
  • A/B test positioning, design, copy, etc. to optimize performance over time
  • Adapt offers to seasonality, current promotions, blog topic, etc.
  • Make the form as short and frictionless as possible to maximize completions
  • Set slide-ins to only appear on relevant posts for the offer topic

Example 1: HubSpot‘s slide-in promoting a social media content calendar template

[Insert example image]

What works well:

  • Clear and compelling headline emphasizing the offer and value (free template)
  • Bright contrasting CTA button color and action-oriented copy ("Download Now")
  • Offer is very relevant to social media marketers reading that blog post
  • Clean design with simple effective copy

Example 2: Copyhackers‘ slide-in for email list building

[Insert example image]

What works well:

  • Copy creates curiosity about what‘s in the emails – "today‘s most important copywriting + marketing news"
  • Uses social proof with "Join 51,507 smart marketers and writers"
  • Minimal form fields to fill out, reducing friction

Example 3: WordStream‘s slide-in promoting their free AdWords Performance Grader tool

[Insert example image]

What works well:

  • Clear value proposition of analyzing your AdWords account for improvements
  • Specific stats like "in 60 seconds or less" make it feel quick and easy to use
  • Contrasting blue and orange color scheme makes it eye-catching against the page

The Future of Slide-In CTAs and Interactive Blog Conversion Tactics

Slide-in calls-to-action are a powerful way to boost conversions from your blog posts, but they are just one interactive CTA format to consider.

Pop-ups, either upon entrance, after scrolling, or upon exit intent, are also highly effective when used judiciously. Properly targeted and non-intrusive inline or sticky banner CTAs can work well too.

As user behaviors and technologies evolve, we may see new types of CTAs emerge like:

  • CTAs personalized based on user attributes or on-site behavior
  • CTAs with interactive elements like drop downs, sliders, quizzes, etc.
  • CTAs that use animation, video, or other rich media
  • CTAs powered by AI/machine learning that adapt to each user
  • Voice-activated CTAs for audio content
  • AR/VR CTAs for immersive experiences

The key is providing a CTA experience that helps rather than hinders the user journey. No matter the format, the offer and targeting need to be relevant and valuable to that particular user at that moment.

As you test slide-in CTAs and other formats on your blog, always put yourself in your audience‘s shoes. Aim to enhance their experience with helpful offers, not annoy them with disruptive or overly pushy tactics.

Focus on aligning your blog content and conversion opportunities as closely as possible. A well-timed, well-matched slide-in CTA should feel like a natural and welcome next step for a reader, not an unwanted distraction.

By following the steps and best practices laid out in this guide, you‘ll be well on your way to converting more of your blog traffic into leads and customers. The key is to start somewhere, experiment, and continually work to give your audience CTAs that resonate.

Over to You

Slide-in CTAs are an often underutilized but highly impactful way to increase your blog‘s conversion rates. By grabbing the user‘s attention while they are actively reading your post, slide-ins tend to drive significantly more engagement and conversions compared to static CTAs at the end of posts.

Using a tool like HubSpot‘s free Lead Flows, you can easily build and implement slide-in CTAs on your blog in minutes. The key is to craft compelling offers with clear and actionable copy, eye-catching images, and a clean distraction-free design. Then target them to the most relevant posts and pages for each offer.

From there, it‘s all about measuring performance, running A/B tests, and optimizing your slide-ins over time based on actual data. By aligning your CTAs closely to the content each user is consuming at that moment, you can deliver a powerfully relevant and frictionless conversion experience.

How will you use slide-in calls-to-action to boost conversions on your blog? The tips and examples in this guide should give you a strong foundation to get started.

Remember, the most effective blog conversion strategies provide the right offer to the right user at the right time in the right format. Slide-in CTAs are a fantastic way to check all those boxes.

So start building and testing slide-ins on your highest trafficked posts. Closely monitor performance and continually work to improve. Most importantly, always strive to enhance rather than interrupt the user experience.

By putting your audience‘s needs first and making your CTAs as relevant as possible, you‘ll be amazed at how many more of your blog readers turn into leads and customers. That‘s the power of well-optimized slide-in calls-to-action.