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.

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:0.7635709711050633] map[node:map[boundingRect:map[bottom:467 height:350 left:0 right:412 top:117 width:412] lhId:page-1-IMG nodeLabel:Thousand Smiles Banner path:1,HTML,1,BODY,3,SECTION,0,DIV,0,DIV,0,DIV,0,IMG selector:div.container-fluid > div.banner-section > div.desktopBnr > img.img-fluid snippet:<img src="https://www.thousandsmiles.uk/wp-content/themes/thousandsmiles/assets/imag…" alt="Thousand Smiles Banner" class="img-fluid" fetchpriority="high" decoding="sync"> type:node] score:0.4101609963547995] map[node:map[boundingRect:map[bottom:467 height:350 left:0 right:412 top:117 width:412] lhId:page-1-IMG nodeLabel:Thousand Smiles Banner path:1,HTML,1,BODY,3,SECTION,0,DIV,0,DIV,0,DIV,0,IMG selector:div.container-fluid > div.banner-section > div.desktopBnr > img.img-fluid snippet:<img src="https://www.thousandsmiles.uk/wp-content/themes/thousandsmiles/assets/imag…" alt="Thousand Smiles Banner" class="img-fluid" fetchpriority="high" decoding="sync"> type:node] score:0.3523693803159174] map[node:map[boundingRect:map[bottom:994 height:180 left:17 right:395 top:814 width:378] lhId:page-6-H1 nodeLabel:Dental Clinic Earls Court, London path:1,HTML,1,BODY,4,SECTION,0,DIV,0,DIV,1,DIV,0,H1 selector:div.container > div.row > div.col-lg-6 > h1 snippet:<h1> type:node] score:0.001040594434346321 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/pxiByp8kv8JHgFVrLCz7V1g.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/pxiByp8kv8JHgFVrLEj6V1g.woff]]] type:subitems]]]

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
Thousand Smile finest quality dental care `div.row > div.col-lg-6 > div.scheduleBx > img.img-fluid`	/wp-content/uploads/2023/04/thousand-smiles-finest-qualit...	152.3 KiB	123.7 KiB
Thousand Smiles Banner `div.container-fluid > div.banner-section > div.desktopBnr > img.img-fluid`	/wp-content/themes/thousandsmiles/assets/images/thousand-...	156.9 KiB	76.9 KiB
Thousand Smiles Logo `div.col-lg-3 > div.logo > a > img.img-fluid`	/wp-content/themes/thousandsmiles/assets/images/thousand-...	21.5 KiB	20.4 KiB

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
static.botsrv2.com/website/js/widget2.js	3600.0 s	35.7 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.

Element	Layout shift score
Thousand Smiles Banner `div.container-fluid > div.banner-section > div.desktopBnr > img.img-fluid`	0.410
Thousand Smiles Banner `div.container-fluid > div.banner-section > div.desktopBnr > img.img-fluid`	0.352
Dental Clinic Earls Court, London `div.container > div.row > div.col-lg-6 > h1`	0.001

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: 300 ms 59.7 KiB

URL	Transfer Size	Est Savings
/wp-content/litespeed/css/98e607c6dfce929afadc8809c88a9ad...	40.2 KiB	36.5 KiB
/wp-content/litespeed/css/6ae5498b000f380076fc33aa8921fad...	24.1 KiB	23.1 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.

Category	Time Spent
Other	845 ms
Style & Layout	701 ms
Rendering	265 ms
Parse HTML & CSS	166 ms
Script Evaluation	154 ms
Script Parsing & Compilation	25 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
Thousand Smiles Logo `div.col-lg-3 > div.logo > a > img.img-fluid`	/wp-content/themes/thousandsmiles/assets/images/thousand-...
Teeth Whitening 1 - Thousand Smiles `div.container-fluid > div#carousel > div.item > img`	/wp-content/themes/thousandsmiles/assets/images/thousand-...
Teeth Whitening 2 - Thousand Smiles `div.container-fluid > div#carousel > div.item > img`	/wp-content/themes/thousandsmiles/assets/images/thousand-...
Teeth Whitening 3 - Thousand Smiles `div.container-fluid > div#carousel > div.item > img`	/wp-content/themes/thousandsmiles/assets/images/thousand-...
Teeth Whitening 4 - Thousand Smiles `div.container-fluid > div#carousel > div.item > img`	/wp-content/themes/thousandsmiles/assets/images/thousand-...
Thousand Smile finest quality dental care `div.row > div.col-lg-6 > div.scheduleBx > img.img-fluid`	/wp-content/uploads/2023/04/thousand-smiles-finest-qualit...
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 Clear Alinger icon `div.box > div.d-flex > div.icon-box > img.img`	data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=
Smile Makeover and Aesthetic Dentistry `div.box > div.d-flex > div.icon-box > img.img`	data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=
Thousand Smiles Clear Braces `div.waemo_sec > div.row > div.col-lg-6 > img.img-fluid`	data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=
Thousand Smiles Better Smile `div.row > div.col-lg-6 > div.scheduleBx > img.img-fluid`	data:image/gif;base64,R0lGODdhAQABAPAAAMPDwwAAACwAAAAAAQABAAACAkQBADs=
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 70 ms

●Document request latency

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●LCP request discovery

●Modern HTTP

●Network dependency tree

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Reduce unused JavaScript

●Avoids enormous network payloads Total size was 1,112 KiB

●JavaScript execution time 0.2 s

●Avoid long main-thread tasks 6 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 60 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 220 ms

○INP breakdown

○User Timing marks and measures

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.home > div.float_button > a`
At Thousand Smiles, we employ innovative dentistry to deliver the best smiles. … `div.container > div.row > div.col-lg-6 > p`
dental care in Earls Court & all of London `div.row > div.col-lg-6 > p > strong`
We have our Dental Clinic in Earls Court, London in a relaxed atmosphere where … `div.container > div.row > div.col-lg-6 > p`
Dental Clinic in Earls Court, London `div.row > div.col-lg-6 > p > strong`
BOOK A CONSULTATION `div.row > div.col-md-5 > div.pqad_btns > a.open-popup`
BOOK A CONSULTATION `div.row > div.col-md-5 > div.pqad_btns > a.open-popup`
Simply contact our friendly team at 020 8050 0280. We require a £25 deposit for… `div.container > div.row > div.col-lg-6 > p`
020 8050 0280 `div.row > div.col-lg-6 > p > a.linkClr`
hello@thousandsmiles.uk `div.row > div.col-lg-6 > p > a.linkClr`
hello@thousandsmiles.uk `div.row > div.contact-box > p > a`
hello@tsmiles.uk `div.row > div.contact-box > p > a`
020 8050 0280 `div.row > div.contact-box > p > a`

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.container-fluid > div.row > div.cmplz-placeholder-parent > iframe.cmplz-placeholder-element `div.container-fluid > div.row > div.cmplz-placeholder-parent > iframe.cmplz-placeholder-element`

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.

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.home > 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

●`<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.

●Heading elements appear in a sequentially-descending order

●Deprecated ARIA roles were not used

●ARIA IDs are unique

●Identical links have the same purpose.

○`[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.

○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

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.

	URL	Displayed size	Actual size	Expected 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 14	18 x 14	27 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

100

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.

○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

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`