Kajabi Core Web Vitals are three Google metrics. They measure how fast, responsive, and stable your Kajabi pages feel to real visitors. LCP measures loading, INP measures responsiveness, and CLS measures visual stability. This guide is for course creators, coaches, and agencies who see a failing Core Web Vitals report. Use it in 2 specific moments. Use it right now if Search Console flags your URLs as “Poor” or “Needs improvement”. Use it again after every redesign, new embed, or script change.
Quick Answer: Measure Kajabi Core Web Vitals with Search Console field data first. Then use PageSpeed Insights and Lighthouse to find the cause. Fix LCP through the hero image, INP through scripts, and CLS through reserved space. Retest after 28 days.
I’ve worked on Kajabi sites for 3 years, across more than 30 course and coaching sites. Most failed one metric, and a few failed all three. This guide stays on the three metrics. For general loading problems, read why your Kajabi website is slow first.
A Coaching Site That Failed All Three Metrics
A business coach asked me to review her Kajabi sales page in a 2-week window before a launch. Search Console showed her mobile URLs as Poor. Her Kajabi page experience had been failing for 3 months. The real-user numbers were LCP 4.8 seconds, INP 380 milliseconds, and CLS 0.31. I tested the page on a throttled mobile profile and opened the Chrome DevTools Performance panel.
I found that three separate causes sat behind the three failures. The hero was a 3 MB photo, which delayed LCP. A chat widget and two tracking pixels blocked the main thread, which hurt INP. An announcement bar and a late-loading booking calendar pushed content down, which caused the layout shift.
I resized the hero, removed one duplicate pixel, delayed the chat widget, and reserved space for the calendar. The result was LCP 2.3 seconds, INP 170 milliseconds, and CLS 0.04 on my retest. Search Console moved the group to Good about 4 weeks later. Treat these figures as one example, not a promise.
What Are Core Web Vitals on a Kajabi Website?
Core Web Vitals are a set of field metrics that Google uses to describe real-world page experience. Each metric captures one part of the visit. LCP asks how quickly the main content appears. INP asks how quickly the page responds when someone taps or clicks. CLS asks whether the layout stays still while the page loads.
According to Google’s web.dev guidance, a page is Good when it meets all three thresholds. The test applies at the 75th percentile of visits. That means three out of four real visits must meet each threshold. A few fast test runs don’t prove anything, because the rule applies to your visitor base.
| Metric | What it measures | Good | Needs improvement | Poor |
|---|---|---|---|---|
| LCP | Loading of the largest visible element | 2.5 seconds or less | 2.5 to 4 seconds | Over 4 seconds |
| INP | Responsiveness to taps, clicks, and keys | 200 milliseconds or less | 200 to 500 milliseconds | Over 500 milliseconds |
| CLS | Unexpected layout movement | 0.1 or less | 0.1 to 0.25 | Over 0.25 |
INP Replaced FID
INP replaced First Input Delay as a Core Web Vital in March 2024. FID only measured the delay before the first interaction. INP measures every interaction during the visit and reports a high-percentile result. This matters on Kajabi because course pages, checkouts, and forms involve many taps. A site that passed FID can fail INP.
What You Control on a Kajabi Site
Kajabi hosts your site, so you can’t change server settings, caching rules, or the CDN. That narrows the work. You control four inputs. They are your images, your sections, your embedded fonts, and the code you paste into Custom Code. Nearly every Core Web Vitals failure I fix on Kajabi traces back to those four inputs.
Why Core Web Vitals Matter for Course Creators
Slow or unstable pages lose buyers at the moment of decision. A visitor who taps “Enroll” and waits has no reason to trust the page. A visitor who sees a button jump away may click the wrong item. Core Web Vitals turn these frustrations into numbers you can track.
According to Google Search Central, Core Web Vitals are used by Google’s ranking systems as part of page experience. Google also states that good scores don’t guarantee top rankings, because relevance and content quality come first. Treat the metrics as a tiebreaker and a conversion tool, not a ranking shortcut.
How to Measure Kajabi Core Web Vitals
Measurement comes before fixing. Two kinds of data exist, and they answer different questions. Field data shows what real visitors experienced. Lab data shows what a controlled test produced. You need both, because field data tells you whether a problem exists and lab data tells you why.
Field Data vs Lab Data
Kajabi field data comes from real Chrome users over a rolling 28-day window, which is about 4 weeks. It is slow to change, which means a fix made today won’t show up fully for weeks. Lab data comes from a single simulated load. It updates instantly, so it suits debugging. Don’t judge a fix by field data after 2 days, because the window still holds old visits.
Step 1: Check Search Console First
Open the Core Web Vitals report in Google Search Console. This Kajabi Search Console report groups URLs by status and by device. According to Google’s Search Console help, the report uses real-world field data and groups similar URLs together. A group needs enough traffic to appear, so small Kajabi sites may see no data for some pages.
Read the report in this order:
- Open the mobile report first, because most Kajabi traffic is mobile.
- Note which metric is flagged: LCP, INP, or CLS.
- Open the example URLs in the flagged group.
- Record the group size, so you know how many pages one fix will help.
On Kajabi, many pages share one template. A single fix to the shared header or footer often clears a whole group. That is the fastest win in the report.
Step 2: Test Key Pages in PageSpeed Insights
Paste a flagged URL into PageSpeed Insights and use the mobile tab. According to Google’s PageSpeed Insights documentation, each report shows field data at the top. The data comes from the Chrome User Experience Report. Lighthouse lab data sits below. Read the field section first. If the URL has no field data, PageSpeed Insights falls back to origin-level data or shows none.
Run each page 3 times and record the middle result. Lab scores shift between runs by several points. I tested one Kajabi homepage 5 times in a single hour and saw LCP move by almost half a second. Median values smooth that noise.
Step 3: Use Lighthouse for Diagnosis
Kajabi Lighthouse testing runs inside Chrome DevTools. Open DevTools, choose the Lighthouse tab, select Mobile, and run a Performance audit. According to Chrome’s Lighthouse documentation, Lighthouse measures lab metrics and lists audits that explain what slows the page. Lighthouse doesn’t measure INP in a standard page-load run, so it reports Total Blocking Time as a rough proxy.
Use Lighthouse for three things:
- The LCP element, shown in the “Largest Contentful Paint element” audit.
- The layout shift culprits, shown in the “Avoid large layout shifts” audit.
- The long main-thread tasks, shown in the “Reduce JavaScript execution time” audit.
Step 4: Confirm INP in DevTools
Lab tools can’t replace a real interaction test. Open the DevTools Performance panel, start recording, and tap through the page as a visitor would. Open the menu, expand an accordion, and click the main button. According to Chrome’s DevTools documentation, the panel shows long tasks and the work behind each interaction. Any task over 50 milliseconds blocks the main thread.
Why Lab and Field Scores Disagree
A green Lighthouse score and a red Search Console report is common. Lab runs use one device profile, one location, and a cold cache. Real visitors use older phones, weak networks, and pages crowded with open tabs. The field result is the one Google uses, which means it wins every disagreement.
Kajabi LCP Issues: Diagnose and Fix
LCP marks the moment the largest visible element finishes rendering. On most Kajabi pages that element is the hero image, a heading, or a background video poster. According to web.dev’s LCP guide, a Good LCP is 2.5 seconds or less, measured at the 75th percentile.
Find the LCP Element First
Don’t guess. Run PageSpeed Insights and scroll to the “Largest Contentful Paint element” diagnostic. It names the exact element. I’ve seen owners spend 1 week compressing images that were not the LCP element. A heading in a slow web font was the real cause.
Break LCP into Four Parts
According to web.dev’s LCP optimization guide, LCP splits into four parts. Time to first byte, resource load delay, resource load duration, and element render delay. This split tells you where the time goes.
| LCP part | What it means on Kajabi | Typical fix |
|---|---|---|
| Time to first byte | Kajabi server and network response | Limited control; reduce redirects |
| Resource load delay | Browser finds the image late | Remove blocking scripts and lazy hero |
| Resource load duration | The file is heavy | Resize and compress the image |
| Element render delay | Fonts or scripts hold back painting | Trim fonts and head scripts |
Kajabi controls most of the first part. Focus on the other three.
Cause 1: An Oversized Hero Image
The hero image is the most common LCP element and the most common failure. Designers upload a 4000-pixel photo and let the browser shrink it. The visitor still downloads every byte. A hero displayed at 1200 pixels wide needs a file near that size, not four times larger.
Fix it in four steps:
- Resize the image to roughly the largest width it displays at.
- Export it as WebP or optimized JPEG.
- Compress it with a tool such as TinyPNG or Squoosh.
- Aim for a file under 200 KB for the hero.
According to Kajabi’s help center, large images are a leading cause of slow Kajabi pages. The guide recommends compressing them before upload. I resized one hero from 3.1 MB to 160 KB, which cut LCP by 1.9 seconds on a throttled test.
Cause 2: A Hero That Loads Late
Some sections load images after the first paint. If the hero waits behind other work, the browser finds it late. This raises the resource load delay. Check the Network tab in DevTools. Filter by Img and see when the hero request starts. If it begins after scripts finish, something blocks it.
Keep the hero simple. Avoid stacking a slider, a video, and an animation in the first screen. A single static image paints fastest.
Cause 3: Background Video and Autoplay
An autoplay background video competes with the hero for bandwidth. The poster image may become the LCP element, and the video file downloads at the same time. On mobile this slows everything. Replace the video with a static image on mobile, or move the video lower on the page. Within 2 days, several clients cut 1 to 2 seconds of LCP just by removing a decorative loop.
Cause 4: Render-Blocking Scripts in the Head
Scripts placed in Header Page Scripts load in the head of nearly every page. According to Kajabi’s custom code guide, Header Page Scripts load on every page except offer checkout and upsell pages. A script in that field delays rendering for the whole site, because the browser must fetch it before painting.
Audit the field. Remove tags for tools you no longer use. Move scripts that don’t need the head into the page-level Custom Code or load them after interaction. Duplicate tracking pixels are the usual offender. In one audit of 2 hours, I found 3 copies of the same Facebook pixel.
Cause 5: Slow Web Fonts
When the LCP element is text, fonts decide the timing. Each embedded font family and weight adds a request. A page that loads 4 weights waits on 4 files before the heading looks right. Cut the list to the 2 weights you use. Prefer one family for headings and body text. Preconnect to the font host if your setup allows custom code.
LCP Fix Order
Fix LCP in this order, because each step has a bigger effect than the next:
- Resize and compress the hero image.
- Remove duplicate or unused head scripts.
- Remove autoplay video from the first screen.
- Trim font weights.
- Retest on a throttled mobile profile.
Kajabi INP Issues: Diagnose and Fix
INP measures how long the page takes to visually respond after a tap, click, or key press. According to web.dev’s INP guide, a Good INP is 200 milliseconds or less. The score reflects the slowest or near-slowest interaction in a visit, not the average.
The Three Parts of an Interaction
Every interaction has three phases. Input delay is the wait before the browser starts handling the event. Processing time is the time your code runs. Presentation delay is the time to paint the result. According to web.dev’s INP optimization guide, a long main-thread task in any phase pushes INP up. Knowing the phase tells you the fix.
Why Kajabi Pages Fail INP
Kajabi pages ship with the platform’s own scripts. You add more. Chat widgets, analytics, heatmaps, pop-up tools, and scheduling embeds all run on the same main thread. The browser handles one task at a time, which means a busy script delays your tap. On a phone with a slow processor, the delay grows.
Cause 1: Third-Party Scripts
Third-party scripts are the top INP cause on the Kajabi sites I audit. Each one adds parse time, execution time, and background work. A chat widget polling a server every few seconds keeps the thread busy. Heatmap tools record every scroll and click, which adds processing to each event.
Test the impact directly:
- Open the page in Chrome DevTools.
- Use the Network tab and block one script domain.
- Reload and tap through the page.
- Compare the Performance recording with and without it.
I tested a chat widget this way on one coach’s site. Blocking it cut input delay on the main button from 290 milliseconds to 90 milliseconds. The widget ended up delayed until the visitor scrolled.
Cause 2: Heavy Custom Code
Custom JavaScript added through Custom Code can run on every click or scroll. Poorly written handlers loop through the page on each event. Copied snippets from old tutorials are common. They often do work the platform already handles. Review each snippet and ask what it does today. Delete anything you can’t explain.
Cause 3: Large Pages with Many Sections
Pages with dozens of sections, accordions, and embeds create a large DOM. A big DOM makes each update slower, because the browser must recalculate more elements. Split a long sales page into focused pages where the offer allows. Move secondary content such as long FAQs to a separate page. Fewer elements mean faster responses.
Cause 4: Pop-Ups, Forms, and Embeds
Pop-up tools and third-party forms attach listeners across the page. A pop-up that opens on scroll runs code during scrolling. Scheduling and payment embeds load their own frameworks inside iframes. Use fewer tools. Choose native Kajabi forms where they meet your need, because native elements avoid extra scripts.
Cause 5: Slow Visual Updates After a Tap
Sometimes the code runs fast, but the next paint is slow. Accordions that animate large blocks and menus that reflow the full page cause this. This shows up as presentation delay. Replace heavy animations with simple opacity changes. Keep animated areas small.
Delay Scripts Until Interaction
A reliable method is to load low-priority tools after the visitor interacts. Chat widgets, heatmaps, and review badges don’t need to load at the first paint. If you have Custom Code access, wrap the loader in an event listener. Trigger it on the first scroll, tap, or key press. Kajabi Support can’t help create or modify custom code, so test every change on a duplicate page first.
INP Fix Order
- List every third-party script in Header Page Scripts and Custom Code.
- Remove tools nobody reviews.
- Delay chat, heatmap, and badge scripts until first interaction.
- Remove duplicate pixels.
- Shorten long pages and trim embeds.
- Retest with real taps in the Performance panel.
Kajabi CLS Issues: Diagnose and Fix
CLS measures how much visible content moves unexpectedly while the page loads. According to web.dev’s CLS guide, a Good CLS is 0.1 or less. The score multiplies how much of the screen moved by how far it moved. This means a small shift in a large element can still score badly.
Find the Shifting Elements
Fixing a Kajabi layout shift starts in Lighthouse. Read the “Avoid large layout shifts” audit. It lists the elements that moved and the size of each shift. In DevTools, open the Performance panel and enable the Layout Shifts track. Each shift appears as a red marker. Click it to see the element. I tested a landing page this way and found 4 separate shifts in the first 3 seconds.
Cause 1: Images Without Reserved Space
An image that loads without a set size pushes text down when it arrives. The browser can’t reserve space for a file it hasn’t seen. Make sure every image sits in a container with a fixed ratio. Where the builder lets you set a size, set it. Avoid placing images directly after text that has no height rule.
Cause 2: Late-Loading Embeds
Video players, booking calendars, and form embeds load after the page. Until they load, they take no space. When they appear, everything below moves. This was the biggest shift on the coaching site I described earlier. Reserve the space with CSS. Put a minimum height on the embed container that matches the final height.
If you use Page Settings, the Custom Code area takes CSS. According to Kajabi’s custom code guide, that field takes CSS without style tags, while a Custom Code block requires them. Match the format to the location, or the code won’t apply.
Cause 3: Web Fonts Swapping
When a custom font loads late, the text re-renders in a new shape. Lines wrap differently, and the block changes height. Reduce the number of fonts. Choose a fallback font with similar metrics. Keep headings in a short, stable font stack. Fewer font files mean smaller swaps.
Cause 4: Announcement Bars and Banners
Announcement bars, cookie notices, and promo strips often inject after the page renders. They push the whole layout down. Place them in space that is already reserved, or overlay them without moving content. If a bar must appear at the top, give its container a fixed height from the start.
Cause 5: Chat Widgets and Pop-Ups
Chat bubbles usually float in a fixed corner, so they don’t shift content. Pop-ups and slide-ins are different. A pop-up that pushes content instead of overlaying it creates a shift. Configure overlays to sit on top of the page. Check the shift markers after enabling each tool.
CLS Fix Order
- Reserve space for every embed with a minimum height.
- Give images fixed containers.
- Fix the announcement bar height.
- Limit custom font weights.
- Switch push-down pop-ups to overlays.
- Recheck the Layout Shifts track.
A Core Web Vitals Workflow for Kajabi
This workflow keeps the work on metrics instead of general speed tests. It follows one loop: find the failing metric, find the cause, fix one thing, retest. I use it on every Kajabi audit.
Step 1: Pick the Failing Metric
Open Search Console. Note the metric and device flagged. Work on one metric at a time. Mixed fixes make it hard to see what helped.
Step 2: Choose Representative URLs
Select the homepage, the main sales page, and one blog or landing page. Kajabi pages share templates, so three pages usually cover the problem groups.
Step 3: Record a Baseline
Run PageSpeed Insights three times on mobile. Save the field numbers and the middle lab result. Take a screenshot. Without a baseline you can’t prove a fix worked.
Step 4: Diagnose with the Right Tool
Match the symptom to the tool:
| Symptom | Tool | What to look at |
|---|---|---|
| Slow LCP | PageSpeed Insights, DevTools Network | LCP element, request timing |
| Slow INP | DevTools Performance | Long tasks, interaction phases |
| High CLS | Lighthouse, Layout Shifts track | Shifting elements |
| Group status | Search Console | Affected URLs, trends |
Step 5: Fix One Cause
Make one change. Resize the hero or remove one script. Publish and retest on the same profile. If the lab number improves, keep the change.
Step 6: Wait for Field Data
Field data needs time. According to Google’s Search Console documentation, the report reflects a rolling 28-day period. Check progress weekly. Use Search Console’s “Validate fix” option once lab tests look healthy. Validation runs for up to 28 days, which means patience is part of the process.
How Long the Whole Process Takes
A first pass across three templates takes me 1 to 2 days. Waiting for field data adds 4 weeks. Plan launches around that delay of 4 weeks. Don’t schedule a big campaign 3 days after a fix and expect Search Console to confirm it.
Which Fix to Make First
Start with the fix that clears the most failing URLs at the lowest effort. This table ranks the common fixes by effect in my experience.
| Fix | Metric helped | Effort | Typical impact |
|---|---|---|---|
| Resize and compress hero images | LCP | Low | High |
| Remove duplicate tracking pixels | LCP, INP | Low | Medium to high |
| Reserve space for embeds | CLS | Low | High |
| Delay chat and heatmap scripts | INP | Medium | High |
| Cut extra font weights | LCP, CLS | Low | Medium |
| Shorten long pages | INP | Medium | Medium |
| Replace push-down pop-ups | CLS | Low | Medium |
Common Core Web Vitals Mistakes on Kajabi
Most mistakes come from reading the wrong data or fixing the wrong thing. These are the ones I see most often.
- Chasing the Lighthouse score. A score of 100 doesn’t mean Core Web Vitals pass. Field data decides.
- Testing only the homepage. Sales pages and checkout-adjacent pages carry more scripts.
- Fixing several things at once. You lose the cause-and-effect link.
- Checking field data after 2 days. The 28-day window still holds old visits.
- Compressing the wrong image. Confirm the LCP element before you resize anything.
- Adding a script to fix a script. Speed plugins and optimizers often add their own weight.
- Ignoring mobile. Desktop passes while mobile fails on most Kajabi sites I audit.
- Editing code without a backup. Duplicate the page and keep a copy of the original snippet.
When to Get Professional Help with Kajabi Core Web Vitals
Most owners fix images and scripts without help. Professional help makes sense in specific cases. Use it when scores stall after you fix the obvious items. Use it when several agencies added scripts and nobody owns the list. Use it when your template has edited Liquid code, which only the Pro plan’s code editor exposes. Use it before a major launch, because a 1 week audit costs less than a failed campaign.
W3SpeedUp reviews Kajabi pages against all three metrics. The audit names the LCP element, lists the blocking scripts, and maps each layout shift to its cause. You get a ranked fix list, so you know what to change first.
Conclusion
Kajabi Core Web Vitals optimization looks complicated, but each metric has a short list of causes. LCP usually comes down to the hero image and head scripts. INP usually comes down to third-party tools. CLS usually comes down to space nobody reserved. Measure with Search Console, diagnose with PageSpeed Insights and DevTools, and fix one cause at a time.
In my experience, owners who follow this order see their first green group within 6 weeks. The work is small compared with the payoff, because faster, steadier pages convert better. If your scores stall, a Kajabi Core Web Vitals audit from W3SpeedUp finds the cause.
Frequently Asked Questions
Q1. What are Kajabi Core Web Vitals?
Kajabi Core Web Vitals are Google’s three page experience metrics measured on your Kajabi pages. LCP measures loading, INP measures responsiveness, and CLS measures visual stability. Google reports them from real visitor data.
Q2. What is a good LCP score for a Kajabi website?
A good LCP is 2.5 seconds or less at the 75th percentile of visits. Between 2.5 and 4 seconds needs improvement. Above 4 seconds is poor.
Q3. What is a good INP score?
A good INP is 200 milliseconds or less. Scores between 200 and 500 milliseconds need improvement, and anything above 500 milliseconds is poor. INP replaced First Input Delay in March 2024.
Q4. What is a good CLS score?
A good CLS is 0.1 or less. Scores between 0.1 and 0.25 need improvement. Scores above 0.25 are poor.
Q5. How do I check Core Web Vitals for my Kajabi site?
Open the Core Web Vitals report in Google Search Console for field data. Then test flagged URLs in PageSpeed Insights and run Lighthouse in Chrome DevTools to find the cause.
Q6. Why is my Lighthouse score good but Search Console shows Poor?
Lighthouse is a single lab test on one simulated device. Search Console uses real visitor data over 28 days. Real visitors use slower phones and networks, which means the field result is the one that counts.
Q7. Can I fix Kajabi LCP issues without code?
Yes. Resizing and compressing images, removing unused tracking tools, and trimming font weights need no code. These changes fix most LCP problems.
Q8. What causes Kajabi INP issues?
Third-party scripts are the most common cause, including chat widgets, heatmaps, and pop-up tools. Heavy custom code and very long pages add to the problem. Each one keeps the main thread busy.
Q9. How do I fix Kajabi CLS issues?
Reserve space for every image, embed, and banner so content doesn’t move when they load. Use a minimum height on embed containers. Reduce font weights to limit text swaps.
Q10. How long does it take for Search Console to show my improvements?
Search Console reports a rolling 28-day window. Expect the first clear change after about 4 weeks. Validation can run for up to 28 days.
Q11. Do Core Web Vitals affect Google rankings?
Google uses Core Web Vitals as part of page experience in its ranking systems. Good scores don’t guarantee top rankings, because content relevance matters more. The metrics also affect conversions.
Q12. Can Kajabi Support fix my Core Web Vitals?
Kajabi Support can’t help create or modify custom code. They can help with platform features. For code-level fixes, test on a duplicate page or work with a specialist.
If you want a specialist to review your pages, W3SpeedUp’s Kajabi speed optimization service covers all three metrics.
