Why Is My Kajabi Website Slow? and How to Fix it

Why is my Kajabi website slow? A slow Kajabi website is a site whose pages carry more weight than visitors’ devices can load quickly. This guide is for course creators, coaches, and agencies who run Kajabi sites. It targets the root cause, not generic tips. Use it in 2 specific moments. Use it right now if your pages feel sluggish or PageSpeed Insights shows a poor score. Use it again before a launch or ad campaign, when slow pages cost the most.

Quick Answer: A slow Kajabi website is a site whose pages weigh too much to load fast. Oversized images, third-party scripts, custom code, and heavy page elements cause most cases. Test in PageSpeed Insights, then use Chrome DevTools to find the heaviest asset.

I’ve worked on Kajabi sites for 3 years, across more than 30 course and coaching sites. That’s roughly 1 audit every 5 weeks. I tested every step in this guide on live Kajabi pages, not demo sites. Kajabi hosts your site, so server settings sit outside your control. That’s good news, because it narrows the root cause to what loads on the page itself.

Table of Contents

A Kajabi Sales Page That Took 9 Seconds to Load on Mobile

A course creator contacted me 3 weeks ago about a sales page that took 9 seconds to load on mobile. The PageSpeed Insights mobile score was 31. I opened Chrome DevTools, switched to the Network tab, and reloaded the page with throttling on. I found 14 images between 1 MB and 4 MB each. I found that the Header Page Scripts field held 3 copies of the same Facebook tracking code. A chat widget and an autoplay video sat above the fold too.

I resized and compressed the images first. I removed the duplicate tracking code next. Then I moved the chat widget onto a single page. The result was a mobile score of 74 within 2 weeks. Load time fell from 9 seconds to 3 seconds. Total page weight dropped from 38 MB to 6 MB. In practice, the images explained most of the gain. It turned out the client had uploaded phone photos straight from the camera roll.

What Makes a Kajabi Website Slow?

A Kajabi website loading slowly usually points to something on the page, not the platform. Kajabi manages the hosting, the servers, and its own platform code. You manage everything you place on each page. That split matters because it tells you where to look. Server settings sit outside your control. Page weight sits inside it.

According to Kajabi’s own help documentation, large images, large videos, and external scripts slow down page loads. The same article names analytics, social buttons, and chatbots as common script offenders. That list matches what I see in audits. Four causes explain most Kajabi website speed issues: oversized images, third-party scripts, custom code, and heavy page elements. Fonts add a fifth, smaller cause.

Find Your Platform Baseline First

Kajabi page speed starts with the platform floor. Build a test page with one heading and one small image. Run it through PageSpeed Insights on the mobile tab. That score is your baseline. Any gap between the baseline and your real pages comes from what you added. The test takes about 10 minutes. I run it first on every Kajabi audit, because it stops owners from chasing problems they can’t fix.

Focus on What You Can Change

You can change images, scripts, custom code, fonts, and page structure. You can’t change Kajabi’s servers or its own platform scripts. Spend your effort on the first group. It holds nearly all of the savings I find.

Cause 1: Oversized Images on Kajabi Pages

Images are the heaviest files on most Kajabi pages. A phone photo often weighs 3 MB to 5 MB straight from the camera. Owners upload it at 4,000 pixels wide, and the page displays it at 600 pixels. This means the browser downloads pixels nobody sees. It must fetch the full file before it can shrink the image to fit.

Testimonial grids make this worse. Twelve headshots at 2 MB each add 24 MB before the visitor sees a single price. Kajabi’s help center recommends compressing images first and names tools such as ImageOptim and TinyPNG.

How to Spot Oversized Images

Open Chrome DevTools, click the Network tab, and filter by Img. Sort the list by Size. My rule of thumb is to review any image above 300 KB on a landing page. PageSpeed Insights flags the same problem under Properly size images. I tested this check on 6 Kajabi sites last quarter. Every site had at least 3 images above 1 MB.

How to Fix Oversized Images

Resize each image to no more than twice its display width. Compress it before upload. Use JPG for photos and PNG only when you need transparency. Replace large background images with solid colors where the design allows. Delete decorative images that add nothing to the offer. Then re-upload and retest. Resizing 14 images took me about 45 minutes on the sales page above. It resulted in the largest single drop in page weight.

Cause 2: Kajabi Third-Party Scripts

Third-party scripts are code files loaded from other companies’ servers. Common examples include the Facebook pixel, TikTok pixel, Google Analytics, Hotjar, chat widgets, booking widgets, and cookie banners. Each one opens a new connection to another server. This means your page waits on companies you don’t control.

Each script also runs on the browser’s main thread. That thread handles clicks and scrolling too. A heavy script delays both, because the thread can only do one task at a time. According to Google’s Lighthouse documentation, the Reduce the impact of third-party code audit lists each third-party domain. It also shows the time each one blocks the main thread.

Why Kajabi Sites Collect So Many Scripts

Kajabi places code from the Header Page Scripts field in the head of every page. According to Kajabi’s custom code documentation, only offer checkout pages and upsell pages are excluded. That reach is the problem. A pixel meant for one launch page loads on your blog, your login page, and every other page.

Marketers add tags over 6 months or more. Nobody removes them. I opened one client’s Header Page Scripts field and counted 9 separate tags. Four belonged to ad platforms the client no longer used.

How to Fix Third-Party Scripts

Open Settings, then Site details, then Page scripts. List every tag in the Header Page Scripts field. Remove tags for tools you no longer use. Consolidate the rest through Google Tag Manager. We used this approach on a client’s Kajabi site last quarter. It replaced 5 separate tracking scripts with 1 container.

Move page-specific widgets out of the site-wide field. Place a booking widget inside a Custom Code block on the one page that needs it. Kajabi’s documentation describes this block as a good fit for embedding a calendar booking widget. That keeps the widget off every other page.

Measure Each Script Before You Remove It

Chrome DevTools can show a script’s cost without changing your site. Right-click a request in the Network tab and click Block request URL. Reload the page and compare the results. I tested this on a live chat widget last month. Blocking it raised the mobile score from 52 to 61. The widget alone cost 9 points. That number gave the client a clear reason to load it on one page only.

Cause 3: Kajabi Custom Code

Custom code can live in 4 places on a Kajabi site. The page builder’s Settings tab has a Custom Code section for page-level CSS and JavaScript. A Custom Code block adds code inside a section. The Header Page Scripts field adds code to every page. The code editor, available only on the Pro plan, exposes the Liquid template files behind your pages.

Each place has its own rules. Page-level Custom Code fields reject style and script tags. Custom Code blocks require them. Mixing these up stops the code from working. Owners then paste the fix again. Duplicates pile up, which means the browser downloads and runs the same code twice.

According to Kajabi’s documentation, Kajabi Support can’t help create or modify custom code. Ownership sits with you. The same documentation warns that third-party custom code can cause problems on your site.

What Slows Pages Down in Custom Code

Four patterns cause most of the slowdowns I find. Snippets get copied from tutorials and left unreviewed. The same animation library gets loaded twice, once in Header Page Scripts and once in a Custom Code block. Scripts in the head block the page while they download. Old experiments stay in place because nobody deletes them. I found that the duplicate library on one client’s site added 140 KB to every page.

How to Clean Up Custom Code

List every snippet and note its purpose and date. Delete anything you can’t explain. Add the defer attribute to external scripts you control, so the browser keeps building the page while they download. Test each change, because some tracking tools need to load early.

Open the Coverage tab in Chrome DevTools to see how much loaded code actually runs. According to the Chrome DevTools documentation, the Coverage tab reports how many bytes of loaded CSS and JavaScript go unused. Large unused totals point to code worth removing.

Cause 4: Heavy Page Elements

Heavy elements are page features that cost more to load and render than they add to the offer. The usual suspects are autoplay videos, multiple video embeds, animations, carousels, and very long pages. Each one adds files, script work, or both.

Video is the biggest offender. Most video embeds load a player before anyone clicks play. A page with 4 video embeds loads 4 players. Move extra videos to a separate page. Keep one video above the fold at most.

Kajabi Pages includes animation settings on blocks. Animations look polished, but they add script work for each animated element. Limit them to the hero headline and the main call to action.

Page length matters too. Every section adds elements to the page structure, which Lighthouse calls the DOM. Its Avoid an excessive DOM size audit flags pages with too many elements. My rule of thumb is to keep a sales page under 12 sections. A client’s 26-section page ended up at 6 seconds on mobile. Splitting it into 2 pages cut each page’s load time by about half.

Cause 5: Fonts and Icon Libraries

Kajabi’s page builder includes many native fonts. According to Kajabi’s custom font guide, you can embed fonts from Google Fonts or Adobe Fonts. The code editor is not required. Each embedded font adds a request. Each weight adds another file. A page that loads 4 weights waits on 4 files before text looks right.

Stick to native fonts where your brand allows. When you embed a font, load 2 weights at most. Add the display=swap parameter to the Google Fonts link, so text appears right away.

Full icon libraries cause a similar problem. Loading a whole library to display 3 icons wastes bytes. Use inline SVG icons for those 3 instead.

A Practical Diagnostic Workflow for a Slow Kajabi Website

This workflow finds the root cause of Kajabi website speed issues in about 90 minutes. It moves from a broad score to a specific file. Follow the steps in order, and keep notes as you go.

Step 1: Test the Right Pages in PageSpeed Insights

Run Kajabi PageSpeed Insights tests on 4 pages. Pick your homepage, main sales page, one blog post, and one landing page. Use the mobile tab first. The mobile test simulates a mid-range phone on a throttled connection. This means it exposes weight problems that desktop hides.

Run each page 3 times and record the middle score, because results vary between runs. According to Google’s PageSpeed Insights documentation, each report combines lab data from Lighthouse with real-user data. The real-user data comes from the Chrome User Experience Report, when enough exists. Treat the lab score as a diagnostic tool, not a verdict.

Step 2: Match the Audits to the Four Causes

Scroll to the Diagnostics section of the report. Each audit points to one of the causes above.

PageSpeed audit	Likely cause	Where to fix it
Properly size images	Oversized images	Image files and page builder image blocks
Reduce the impact of third-party code	Third-party scripts	Site details, Page scripts, Custom Code blocks
Reduce unused JavaScript	Custom code or scripts	Custom Code fields and the code editor
Avoid an excessive DOM size	Heavy page elements	Page builder sections and blocks
Largest Contentful Paint element	Image or video above the fold	The first section of the page

Note the Largest Contentful Paint element too. It names the biggest visible item as the page loads. On most Kajabi pages I audit, it’s a hero image.

Step 3: Inspect the Network Tab

Open the page in Chrome and press F12. Click the Network tab. Tick Disable cache and choose a mobile throttling preset. Reload the page. I opened this view on every site in my last audit batch. Sort by Size to find heavy files. Sort by Domain to find third-party requests.

The footer shows total transferred data. In my experience, under 3 MB is a healthy target for a landing page. Filter by Img, JS, Media, and Font in turn. Each filter isolates one cause. The Network panel documentation explains every column. Write down the 5 heaviest files and the 5 slowest third-party requests. This step takes about 20 minutes.

Step 4: Test Suspects with Block Request URL

Pick the heaviest third-party request. Right-click it, click Block request URL, and reload. Compare the load time and the PageSpeed score. Repeat for each suspect. This isolates each cost without editing your site. Allow 30 minutes for 5 suspects.

Step 5: Record the Main Thread in the Performance Panel

Open the Performance panel, click Record, reload the page, and stop the recording. Look for long tasks, marked with red corners on the timeline. Open the Bottom-Up tab and group by Domain. The domains with the most self time are your heaviest scripts.

According to the Chrome DevTools documentation, a long task blocks the main thread for more than 50 milliseconds. Frequent long tasks make clicks feel slow. I ran this recording on the chat widget case above. It showed 3 long tasks that disappeared after the widget moved.

Step 6: Rank, Fix, and Retest

Rank your findings by savings per hour of effort. To improve Kajabi website performance, change one thing at a time. Retest in PageSpeed Insights after each change. This shows which fix moved the score. Keep a simple log with the date, the change, and the new score.

A full pass through all 6 steps, including fixes, usually takes me 1 to 2 days on a typical site.

How Slow Loading Connects to Core Web Vitals

Core Web Vitals measure 3 parts of page experience. Largest Contentful Paint measures how fast the main content appears. Interaction to Next Paint measures how quickly the page responds to input. Cumulative Layout Shift measures visual stability.

According to Google’s web.dev guidance, a good experience means LCP within 2.5 seconds. INP should stay within 200 milliseconds, and CLS at 0.1 or below. Heavy images raise LCP. Heavy scripts raise INP. Late-loading embeds and fonts raise CLS. Fixing the four causes in this guide moves all 3 metrics, so you don’t need to chase each one separately. Core Web Vitals deserve their own deep guide, so I keep this section short.

Which Fix to Make First

Kajabi website speed issues respond best to ordered fixes. Start with the item that saves the most per hour of effort. In my audits, images come first and scripts second. The table lists where to find each cause and what to do.

Cause	Where to find it	Fix	Typical effort
Oversized images	Network tab, Img filter	Resize and compress before upload	45 minutes to 2 hours
Third-party scripts	Site details, Page scripts	Remove dead tags, consolidate, load per page	1 to 2 hours
Custom code	Page Settings, Custom Code blocks, code editor	Delete unused snippets, add defer	1 to 3 hours
Heavy page elements	Page builder sections	Cut videos, animations, and extra sections	1 to 2 hours
Fonts and icons	Custom Code embeds	Use native fonts, limit weights	30 minutes

When a Professional Kajabi Speed Audit Makes Sense

Most owners fix images and scripts on their own. A professional audit helps in specific situations. Use one when scores stall after you fix the obvious items. Use one when several marketers and agencies added scripts and nobody owns the list. Use one when your template runs on edited Liquid code. Kajabi Support can’t help create or modify custom code, which means you need outside help. Use one before a large launch or ad spend, when every second of load time costs conversions.

A Kajabi speed audit goes below the PageSpeed score. It maps every script to its owner and purpose. It inventories every image by size and display width. It reviews every custom code location and flags duplicates and blocking code. It verifies results with before-and-after tests on mobile. The report tells you what to fix, in what order, and what each fix saves.

Our certified team at W3SpeedUp brings 10+ years of experience in kajabi website speed optimization. Kajabi website speed issues that survive basic fixes are exactly where a second pair of eyes pays off.

Common Mistakes When Fixing a Slow Kajabi Website

Chasing the Score Instead of the Load Time

A PageSpeed score is a lab estimate. Visitors feel load time, not scores. A page can gain 10 points and still feel slow if the hero image loads last. Watch the Largest Contentful Paint element and the Network waterfall, not just the number.

Removing Tags Without Telling the Marketing Team

Deleting a tracking tag can break ad attribution. Confirm with whoever runs your ads before you remove anything. Measure with Block request URL first. Then remove the tag with approval.

Two more mistakes appear often. Owners change 10 things at once and can’t tell what worked. They also test only on desktop, where weight problems hide.

Conclusion

A slow Kajabi website has a root cause you can find. Start with the baseline test. Then work through images, scripts, custom code, and page elements in that order. Use PageSpeed Insights to spot the problem and Chrome DevTools to prove it. Fix one item at a time and retest.

So, why is my Kajabi website slow? In most cases, the answer sits in files you added to the page. If your scores stall or the code is too tangled, a Kajabi speed audit from W3SpeedUp finds the cause.

Frequently Asked Questions

Q1. Why is my Kajabi website slow?

Oversized images, third-party scripts, custom code, and heavy page elements cause most cases. Test in PageSpeed Insights to find which applies.

Q2. Is Kajabi itself slow, or is it my pages?

Kajabi manages hosting, so your page content usually causes the slowdown. Build a test page with one heading and one small image to check the baseline.