Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
kuula.co/assets/pages/landing/real-estate-rightmove.png	0.0 ms	4.2 KiB
kuula.co/assets/partners/unsw.png	0.0 ms	3.7 KiB
kuula.co/assets/partners/uc-berkeley.png	0.0 ms	3.5 KiB
kuula.co/assets/pages/landing/real-estate-realtor.png	0.0 ms	3.4 KiB
kuula.co/assets/pages/landing/real-estate-zillow.png	0.0 ms	3.1 KiB
kuula.co/assets/partners/amazon.png	0.0 ms	3.1 KiB
kuula.co/assets/partners/gensler.png	0.0 ms	3.1 KiB
kuula.co/assets/partners/skanska.png	0.0 ms	3.0 KiB
kuula.co/assets/partners/microsoft.png	0.0 ms	2.8 KiB
kuula.co/assets/logo-white.svg	0.0 ms	2.5 KiB
kuula.co/assets/pages/landing/real-estate-idealista.png	0.0 ms	2.5 KiB
kuula.co/assets/partners/cbre.png	0.0 ms	2.2 KiB
kuula.co/assets/partners/ucla.png	0.0 ms	2.0 KiB

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
About Kuula Kuula is the most popular, award winning 3D 360 virtual tour softw… `div.app > section#about > div.about-wrapper > article.modular`	static.kuula.io/prod/assets/about/labg-s.jpg	167.2 KiB	59.2 KiB
Create engaging virtual tours `article.modular > div.module > picture > img`	static.kuula.io/prod/assets/pages/features/kuula-addons.webp	68.1 KiB	52.3 KiB
article.modular > div.module > span.picture > video#autov `article.modular > div.module > span.picture > video#autov`	static.kuula.io/prod/assets/pages/features/kuula-player.jpg	50.3 KiB	34.5 KiB
nav.menu > div.panel > a.l2 > span.sps `nav.menu > div.panel > a.l2 > span.sps`	static.kuula.io/prod/assets/sprites-main-s_v3.png	46.1 KiB	34.1 KiB
body.embed > div.fs > div.buttons > div.spl `body.embed > div.fs > div.buttons > div.spl`	static.kuula.io/prod/assets/sprites-main_v3.png	59.6 KiB	32.6 KiB
Embed & share virtual tours `article.modular > div.module > picture > img`	static.kuula.io/prod/assets/pages/features/kuula-embed.webp	27.8 KiB	18.2 KiB

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

value: No additional origins are good candidates for preconnecting

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
static.kuula.io/prod/css/master-866r22.css	58.0 KiB	1.1 s

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 170 ms 55.0 KiB

URL	Transfer Size	Est Savings
static.kuula.io/prod/css/master-866r22.css	57.9 KiB	55.0 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 990 ms 522.6 KiB

URL	Transfer Size	Est Savings
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.8 KiB	242.2 KiB
static.kuula.io/prod/app-866r22.js	246.1 KiB	195.7 KiB
static.kuula.io/prod/viewer-866r22.js	140.9 KiB	84.6 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
static.kuula.io/prod/app-866r22.js	8.9 s	299 ms	67 ms
static.kuula.io/prod/viewer-866r22.js	1.5 s	1.5 s	43 ms
Unattributable	459 ms	8.0 ms	0.0 ms
kuula.co/	326 ms	55 ms	3.1 ms
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	172 ms	91 ms	80 ms
/share/hzjcg?fs=1&vr=0&priority=1&autorotate=0.2&hideinst...	74 ms	44 ms	1.8 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Other	8.9 s
Script Evaluation	2.0 s
Style & Layout	234 ms
Script Parsing & Compilation	196 ms
Rendering	111 ms
Parse HTML & CSS	87 ms
Garbage Collection	42 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
Pages that use WebXR are not currently eligible for back/forward cache.	Actionable
The page has an unload handler in a sub frame.	Actionable

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
files.kuula.io/6920-1f50-1c4e-7148/01-8192.jpg	2.4 MiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	362.4 KiB
static.kuula.io/prod/app-866r22.js	246.6 KiB
static.kuula.io/prod/assets/about/labg-s.jpg	167.6 KiB
static.kuula.io/prod/viewer-866r22.js	141.1 KiB
static.kuula.io/prod/assets/pages/features/kuula-addons.webp	68.3 KiB
static.kuula.io/prod/assets/sprites-main_v3.png	59.9 KiB
static.kuula.io/prod/css/master-866r22.css	58.0 KiB
static.kuula.io/prod/assets/pages/features/kuula-player.jpg	50.6 KiB
static.kuula.io/prod/assets/sprites-main-s_v3.png	46.3 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
Forbes Magazine `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/partners/microsoft.png
FastCompany Magazine `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/partners/amazon.png
Mashable `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/pages/landing/real-estate-zillow.png
Engaget `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/pages/landing/real-estate-rightmove.png
Digiday `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/pages/landing/real-estate-realtor.png
El País `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/pages/landing/real-estate-idealista.png
VRScout `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/partners/ucla.png
UploadVR `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/partners/uc-berkeley.png
UploadVR `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/partners/unsw.png
UploadVR `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/partners/gensler.png
UploadVR `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/partners/skanska.png
UploadVR `div.about-wrapper > article.modular > div.module > img`	kuula.co/assets/partners/cbre.png
Forbes Magazine `div.about-wrapper > article.modular > div.module > img`
FastCompany Magazine `div.about-wrapper > article.modular > div.module > img`
Mashable `div.about-wrapper > article.modular > div.module > img`
Engaget `div.about-wrapper > article.modular > div.module > img`
Digiday `div.about-wrapper > article.modular > div.module > img`
El País `div.about-wrapper > article.modular > div.module > img`
UploadVR `div.about-wrapper > article.modular > div.module > img`
How to add Virtual Tour to a listing on Zillow in 2026 `div#blog-feed > div.blog-post > a > img`
December 2025 - Major Update! `div#blog-feed > div.blog-post > a > img`
How to Add Videos to a Tour on Kuula `div#blog-feed > div.blog-post > a > img`
Recommanded 360 cameras `div.blog-post > a > picture > img`
Virtual Tour tutorial `div.blog-post > a > picture > img`
Kuula PRO `div.blog-post > a > picture > img`

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoid long main-thread tasks 20 long tasks found

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 30 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 60 ms

○INP breakdown

○LCP request discovery

○User Timing marks and measures

○Avoid non-composited animations

○Avoid large layout shifts

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
JOIN NOW! `ul.header-pane > li.tagline > div.ctas > a.join`
LEARN MORE `ul.header-pane > li.tagline > div.ctas > a.explore`
PRO `div.module > div.text > p > a.pro`
BUSINESS `div.module > div.text > p > a.pro`
WATCH INTRO VIDEO `article.modular > div.module > div.text > span.mbtn`
PRO `div.module > div.text > p > a.pro`
BUSINESS `div.module > div.text > p > a.pro`
LEARN MORE `article.modular > div.module > div.text > a.mbtn`
JOIN NOW `article.modular > div.module > div.text > a.mbtn`
Ben Claremont `div.module > div.testimonial > p > a.user`
VirtualTourPro `div.module > div.testimonial > p > a.link`
Michael Ty `div.module > div.testimonial > p > a.user`
360rumors `div.module > div.testimonial > p > a.link`
Martin Kulhavy `div.module > div.testimonial > p > a.user`
www.martin.kulhavy.info `div.module > div.testimonial > p > a.link`
MORE TESTIMONIALS `div.about-wrapper > article.modular > div.module > a.mbtn`
JOIN NOW! `div.about-wrapper > article.modular > div.module > a.mbtn`
EXPLORE `div.about-wrapper > article.modular > div.module > a.mbtn`
More info `div.blog-post > a > p > span.continue`
More info `div.blog-post > a > p > span.continue`
More info `div.blog-post > a > p > span.continue`
KUULA BLOG `div.about-wrapper > article.modular > div.module > a.mbtn`
Read our guide `div.blog-post > a > p > span.continue`
Here's how `div.blog-post > a > p > span.continue`
PRO `div.blog-post > a > div.head-title > span.pro`
PRO `div.blog-post > a > p > span.pro`
See features and pricing `div.blog-post > a > p > span.continue`
ALL TUTORIALS `div.about-wrapper > article.modular > div.module > a.mbtn`
Get in touch! `div.content-pane > ul.social > li.head > a.grey`
We're social `footer > div.content-pane > ul.social > li.head`
Blog `div.content-pane > ul.other > li > a`
Support `div.content-pane > ul.other > li > a`
Change Log `div.content-pane > ul.other > li > a`
Debug Page `div.content-pane > ul.other > li > a`
Status `div.content-pane > ul.other > li > a`
Terms `div.content-pane > ul.legal > li > a`
Privacy Policy `div.content-pane > ul.legal > li > a`
GDPR `div.content-pane > ul.legal > li > a`
© 2016-2026 Kuula Inc. All Rights Reserved \| Build 866r22 TH `body > footer > div.copyright > span._ert`
Artwork by Flaticon & EmojiOne `body > footer > div.copyright > span`
Flaticon `footer > div.copyright > span > a`
EmojiOne `footer > div.copyright > span > a`
Register `body > nav.bar > a.lout > span.text`

These are opportunities to improve the legibility of your content.

Names and labels

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.about-wrapper > header > div.splash > iframe `div.about-wrapper > header > div.splash > iframe`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
750,000+ `div.module > ul > li > h4`

These are opportunities to improve keyboard navigation in your application.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
head > meta `head > meta`

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Ben Claremont `div.module > div.testimonial > p > a.user`
VirtualTourPro `div.module > div.testimonial > p > a.link`
Michael Ty `div.module > div.testimonial > p > a.user`
360rumors `div.module > div.testimonial > p > a.link`
Martin Kulhavy `div.module > div.testimonial > p > a.user`
www.martin.kulhavy.info `div.module > div.testimonial > p > a.link`

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.js `html.js`

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●Image elements have `[alt]` attributes

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●`<video>` elements contain a `<track>` element with `[kind="captions"]`

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`[aria-*]` attributes match their roles

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA attributes are used as specified for the element's role

○Deprecated ARIA roles were not used

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○`[aria-hidden="true"]` elements do not contain focusable descendents

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements use only permitted ARIA attributes

○`[role]`s have all required `[aria-*]` attributes

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○`[role]` values are valid

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○`[aria-*]` attributes have valid values

○`[aria-*]` attributes are valid and not misspelled

○Buttons have an accessible name

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Elements with visible text labels have matching accessible names.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Unload event listeners are deprecated and will be removed.	static.kuula.io/prod/viewer-866r22.js

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Ensure proper origin isolation with COOP

○Mitigate clickjacking with XFO or CSP

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
kuula.co/page/pro	LEARN MORE

Format your HTML in a way that enables crawlers to better understand your app’s content.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
LEARN MORE `ul.header-pane > li.tagline > div.ctas > a.explore`
Close menu `body > nav.menu > div.panel > a.btn`
Upload `body > nav.menu > div.panel > a.lin`
Sign out `body > nav.menu > div.panel > a.lin`

To appear in search results, crawlers need access to your app.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`