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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

51

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.

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.7446066234065032] map[node:map[boundingRect:map[bottom:617 height:500 left:0 right:412 top:117 width:412] lhId:page-1-IMG nodeLabel:Invisalign Offer Banner – Thousand Smiles path:1,HTML,1,BODY,3,DIV,0,IMG selector:body.wp-singular > div.innerBanner > img.img-fluid snippet:<img src="https://www.thousandsmiles.uk/wp-content/uploads/2023/05/invisalign-offer-…" alt="Invisalign Offer Banner – Thousand Smiles" class="img-fluid" fetchpriority="high" decoding="sync"> type:node] score:0.3523693803159174 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1280 height:259 left:12 right:400 top:1022 width:388] lhId:page-0-IMG nodeLabel:Invisalign Treatment- Thousand Smiles path:1,HTML,1,BODY,4,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,IMG selector:div.row > div.col-lg-6 > div.etade_thumb > img.img-fluid snippet:<img data-lazyloaded="1" src="https://www.thousandsmiles.uk/wp-content/uploads/2024/10/invisalign–treatm…" decoding="async" data-src="https://www.thousandsmiles.uk/wp-content/uploads/2024/10/invisalign–treatm…" alt="Invisalign Treatment- Thousand Smiles" class="img-fluid entered litespeed-loaded" data-ll-status="loaded"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:617 height:500 left:0 right:412 top:117 width:412] lhId:page-1-IMG nodeLabel:Invisalign Offer Banner – Thousand Smiles path:1,HTML,1,BODY,3,DIV,0,IMG selector:body.wp-singular > div.innerBanner > img.img-fluid snippet:<img src="https://www.thousandsmiles.uk/wp-content/uploads/2023/05/invisalign-offer-…" alt="Invisalign Offer Banner – Thousand Smiles" class="img-fluid" fetchpriority="high" decoding="sync"> type:node] score:0.3375973073675301 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1280 height:259 left:12 right:400 top:1022 width:388] lhId:page-0-IMG nodeLabel:Invisalign Treatment- Thousand Smiles path:1,HTML,1,BODY,4,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,IMG selector:div.row > div.col-lg-6 > div.etade_thumb > img.img-fluid snippet:<img data-lazyloaded="1" src="https://www.thousandsmiles.uk/wp-content/uploads/2024/10/invisalign–treatm…" decoding="async" data-src="https://www.thousandsmiles.uk/wp-content/uploads/2024/10/invisalign–treatm…" alt="Invisalign Treatment- Thousand Smiles" class="img-fluid entered litespeed-loaded" data-ll-status="loaded"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:617 height:500 left:0 right:412 top:117 width:412] lhId:page-1-IMG nodeLabel:Invisalign Offer Banner – Thousand Smiles path:1,HTML,1,BODY,3,DIV,0,IMG selector:body.wp-singular > div.innerBanner > img.img-fluid snippet:<img src="https://www.thousandsmiles.uk/wp-content/uploads/2023/05/invisalign-offer-…" alt="Invisalign Offer Banner – Thousand Smiles" class="img-fluid" fetchpriority="high" decoding="sync"> type:node] score:0.04214763061968408 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1280 height:259 left:12 right:400 top:1022 width:388] lhId:page-0-IMG nodeLabel:Invisalign Treatment- Thousand Smiles path:1,HTML,1,BODY,4,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,IMG selector:div.row > div.col-lg-6 > div.etade_thumb > img.img-fluid snippet:<img data-lazyloaded="1" src="https://www.thousandsmiles.uk/wp-content/uploads/2024/10/invisalign–treatm…" decoding="async" data-src="https://www.thousandsmiles.uk/wp-content/uploads/2024/10/invisalign–treatm…" alt="Invisalign Treatment- Thousand Smiles" class="img-fluid entered litespeed-loaded" data-ll-status="loaded"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:757 height:80 left:12 right:400 top:677 width:388] lhId:page-12-H1 nodeLabel:Special Offers For Invisalign Treatment path:1,HTML,1,BODY,4,DIV,0,DIV,0,DIV,0,DIV,0,H1 selector:div.container > div.row > div.col-lg-12 > h1 snippet:<h1> type:node] score:0.008734488196494175 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrFJM.woff]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9V1g.woff]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLCz7V1g.woff]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6V1g.woff]]] type:subitems]] map[node:map[boundingRect:map[bottom:472 height:105 left:12 right:327 top:367 width:315] lhId:page-7-UL nodeLabel:Free Consultation [worth £45] Free Removable Retainer [worth £300] Free Smile S… path:1,HTML,1,BODY,3,DIV,1,DIV,0,DIV,0,DIV,6,UL selector:div.innrBnrCpn > div.container > div.innBnrbx > ul.freeCnsltlist snippet:<ul class="freeCnsltlist"> type:node] score:0.003757816906877524]]
headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.004411126449344783] map[node:map[boundingRect:map[bottom:711 height:84 left:228 right:432 top:627 width:204] lhId:page-15-DIV nodeLabel:Let's start Start path:1,HTML,1,BODY,40,BUTTON,0,DIV selector:body.wp-singular > button#botbutton > div#quriobotWidgetPopup snippet:<div class="quriobotWidgetPopup" id="quriobotWidgetPopup"> type:node] score:0.001172903896662228] map[node:map[boundingRect:map[bottom:711 height:84 left:228 right:432 top:627 width:204] lhId:page-15-DIV nodeLabel:Let's start Start path:1,HTML,1,BODY,40,BUTTON,0,DIV selector:body.wp-singular > button#botbutton > div#quriobotWidgetPopup snippet:<div class="quriobotWidgetPopup" id="quriobotWidgetPopup"> type:node] score:0.0007400404711291226] map[node:map[boundingRect:map[bottom:711 height:84 left:228 right:432 top:627 width:204] lhId:page-15-DIV nodeLabel:Let's start Start path:1,HTML,1,BODY,40,BUTTON,0,DIV selector:body.wp-singular > button#botbutton > div#quriobotWidgetPopup snippet:<div class="quriobotWidgetPopup" id="quriobotWidgetPopup"> type:node] score:0.0007385715306182607] map[node:map[boundingRect:map[bottom:711 height:84 left:228 right:432 top:627 width:204] lhId:page-15-DIV nodeLabel:Let's start Start path:1,HTML,1,BODY,40,BUTTON,0,DIV selector:body.wp-singular > button#botbutton > div#quriobotWidgetPopup snippet:<div class="quriobotWidgetPopup" id="quriobotWidgetPopup"> type:node] score:0.0006962526059133443] map[node:map[boundingRect:map[bottom:711 height:84 left:228 right:432 top:627 width:204] lhId:page-15-DIV nodeLabel:Let's start Start path:1,HTML,1,BODY,40,BUTTON,0,DIV selector:body.wp-singular > button#botbutton > div#quriobotWidgetPopup snippet:<div class="quriobotWidgetPopup" id="quriobotWidgetPopup"> type:node] score:0.0005929028004445847]]

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

URLResource SizeEst Savings
Invisalign Treatment- Thousand Smiles div.row > div.col-lg-6 > div.etade_thumb > img.img-fluid
/wp-content/uploads/2024/10/invisalign–treatment.webp1.6 MiB1.6 MiB
Invisalign Offer Banner – Thousand Smiles body.wp-singular > div.innerBanner > img.img-fluid
www.thousandsmiles.uk/wp-content/uploads/2023/05/invisalign-offer-banner.webp665.7 KiB579.9 KiB
Invisaling Logo div.container > div.innBnrbx > div.invgnImg > img.img-fluid
www.thousandsmiles.uk/wp-content/uploads/2023/05/invisaling-logo.webp24.9 KiB20.8 KiB
Thousand Smiles Logo div.col-lg-3 > div.logo > a > img.img-fluid
/wp-content/themes/thousandsmiles/assets/images/thousand-...21.5 KiB20.4 KiB
/wp-content/themes/thousandsmiles/assets/images/check-ico...18.2 KiB18.2 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
value: no origins were preconnected
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

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.

RequestCache TTLTransfer Size
static.botsrv2.com/website/js/widget2.js3600.0 s37.4 KiB
www.gstatic.com/recaptcha/api2/logo_48.png604800.0 s2.2 KiB

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

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Invisalign Offer Banner – Thousand Smiles body.wp-singular > div.innerBanner > img.img-fluid
0.352
Invisalign Offer Banner – Thousand Smiles body.wp-singular > div.innerBanner > img.img-fluid
0.338
Invisalign Offer Banner – Thousand Smiles body.wp-singular > div.innerBanner > img.img-fluid
0.042
Special Offers For Invisalign Treatment div.container > div.row > div.col-lg-12 > h1
0.009
Free Consultation [worth £45] Free Removable Retainer [worth £300] Free Smile S… div.innrBnrCpn > div.container > div.innBnrbx > ul.freeCnsltlist
0.004
Let's start Start body.wp-singular > button#botbutton > div#quriobotWidgetPopup
0.001
Let's start Start body.wp-singular > button#botbutton > div#quriobotWidgetPopup
0.001
Let's start Start body.wp-singular > button#botbutton > div#quriobotWidgetPopup
0.001
Let's start Start body.wp-singular > button#botbutton > div#quriobotWidgetPopup
0.001
Let's start Start body.wp-singular > button#botbutton > div#quriobotWidgetPopup
0.001
Let's start Start body.wp-singular > button#botbutton > div#quriobotWidgetPopup
0.000

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.

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: 1.2 s 209.9 KiB

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.

CategoryTime Spent
Other851 ms
Script Evaluation821 ms
Style & Layout588 ms
Rendering222 ms
Parse HTML & CSS105 ms
Script Parsing & Compilation89 ms
Garbage Collection5.5 ms

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
Invisalign Treatment- Thousand Smiles div.row > div.col-lg-6 > div.etade_thumb > img.img-fluid
/wp-content/uploads/2024/10/invisalign–treatment.webp
Thousand Smiles Logo div.col-lg-3 > div.logo > a > img.img-fluid
/wp-content/themes/thousandsmiles/assets/images/thousand-...
Invisaling Logo div.container > div.innBnrbx > div.invgnImg > img.img-fluid
www.thousandsmiles.uk/wp-content/uploads/2023/05/invisaling-logo.webp
Thousand Smiles Dental Clinic Earls Court div.info_sec_mblvrsn > div.infoGetouchBx > div.infoIcon > img.img-fluid
/wp-content/themes/thousandsmiles/assets/images/email-ico...
Invisalign Spark footer logo section#block-8 > ul.list-inline > li > img
data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=
General Dental Council Footer logo section#block-8 > ul.list-inline > li > img
data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=
Care Quality Commission Footer logo section#block-8 > ul.list-inline > li > img
data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=
Thousand Smiles Provider Footer logo section#block-8 > ul.list-inline > li > img
data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=

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

●Max Potential First Input Delay 130 ms
●Document request latency
●Optimize DOM size
●Forced reflow
●LCP breakdown
●LCP request discovery
●Modern HTTP
●Render blocking requests
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●JavaScript execution time 0.9 s
●Avoid long main-thread tasks 8 long tasks found
●Avoid non-composited animations 7 animated elements found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 50 ms
●Server Backend Latencies 50 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 230 ms
○INP breakdown
○User Timing marks and measures
93

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
BOOK A CONSULTATION div.row > div.col-lg-4 > div.btn > a
BOOK NOW body.wp-singular > div.float_button > a

These are opportunities to improve the legibility of your content.

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
Invisalign is categorised into four distinct classes. div.row > div.col-lg-6 > div.etade_cnt > h5.mb-3

These are opportunities to improve keyboard navigation in your application.

Best practices

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 html

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Let's start Start body.wp-singular > button#botbutton
○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-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<frame>` or `<iframe>` elements have a title
●`<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
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Deprecated ARIA roles were not used
●ARIA IDs are unique
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○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
○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
○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.
○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
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○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.
○Identical links have the same purpose.
○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.
96

Best Practices

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLDisplayed sizeActual sizeExpected size
Thousand Smiles Dental Clinic Earls Court div.info_sec_mblvrsn > div.infoGetouchBx > div.infoIcon > img.img-fluid
/wp-content/themes/thousandsmiles/assets/images/email-ico...18 x 1418 x 1427 x 21
●Uses HTTPS
●Avoids deprecated APIs
●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
●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
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Detected JavaScript libraries
92

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.

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
BOOK A FREE CONSULTATION div.pricing_design > div.single-pricing > div.bookFreeCnslt > a.open-popup
BOOK A FREE CONSULTATION div.pricing_design > div.single-pricing > div.bookFreeCnslt > a.open-popup
BOOK A FREE CONSULTATION div.pricing_design > div.single-pricing > div.bookFreeCnslt > a.open-popup
BOOK A FREE CONSULTATION div.pricing_design > div.single-pricing > div.bookFreeCnslt > a.open-popup

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
●Links have descriptive text
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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