https://www.1aorthodontics.com/orthodontic-treatment/invisalign

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
/app-releases/google-reviews/stable/v3.56.6/61fececee041c...	3600.0 s	461.8 KiB
cookie.bestfreecdn.com/storage/js/cookie-3246.js?ver=4	1200.0 s	101.0 KiB
app.protocus.com/js/formRender.js	14400.0 s	25.4 KiB
found11130.pcapredict.com/js/sensor.js	60.0 s	14.8 KiB
static.elfsight.com/platform/platform.js	3600.0 s	14.8 KiB
use.typekit.net/nei6tio.js	600.0 s	7.8 KiB
/p.gif?s=1&k=nei6tio&ht=tk&h=www.1aorthodontics.com&f=676...	604800.0 s	205 B

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.

URL	Est Savings
/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	110 ms
/s/opensans/v44/memtYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWqWu...	110 ms
fonts.gstatic.com/s/ptsans/v18/jizaRExUiTo99u79D0KExcOPIDU.woff2	105 ms
fonts.gstatic.com/s/ptsans/v18/jizYRExUiTo99u79D0e0x8mIAjcQ-w.woff2	95 ms
fonts.gstatic.com/s/ptsans/v18/jizdRExUiTo99u79D0e8fOydLxUd0TA7iw.woff2	85 ms
fonts.gstatic.com/s/ptsans/v18/jizfRExUiTo99u79B_mh0O6tLR8a8zI.woff2	75 ms
fonts.gstatic.com/s/droidsans/v19/SlGVmQWMvZQIdix7AFxXkHNSbRYXags.woff2	70 ms
fonts.gstatic.com/s/droidsans/v19/SlGWmQWMvZQIdix7AFxXmMh3eDs1ZyHKpWg.woff2	60 ms
/af/44bde1/0000000000000000000170b0/27/l?primer=7cdcb44be...	25 ms
/af/7f0b40/00000000000000003b9ad2e3/27/l?primer=7cdcb44be...	25 ms
/af/25f703/00000000000000003b9ad2e2/27/l?primer=7cdcb44be...	20 ms
/af/b89a53/00000000000000007735ba1d/30/l?primer=7cdcb44be...	20 ms
/af/6161d4/00000000000000007735ba1e/30/l?primer=7cdcb44be...	20 ms
/af/f72c04/0000000000000000000170a4/27/l?primer=7cdcb44be...	15 ms
use.typekit.net/af/821a05/00000000000000007735a082/30/l?subset_id=2&fvd=n3&v=3	15 ms
/af/2b0ae7/00000000000000003b9ad2df/27/l?primer=7cdcb44be...	15 ms
/af/5cace6/00000000000000003b9b00c2/27/l?primer=7cdcb44be...	10 ms
/af/d44976/0000000000000000000170b3/27/l?primer=7cdcb44be...	10 ms
/af/a78021/0000000000000000000170ae/27/l?primer=7cdcb44be...	10 ms
/af/2efaa6/0000000000000000000170b4/27/l?primer=7cdcb44be...	10 ms
/af/c63dde/0000000000000000000170a8/27/l?primer=7cdcb44be...	10 ms
/af/2a1b80/00000000000000007735a09e/30/l?primer=7cdcb44be...	10 ms
/af/4d44c2/00000000000000007735a6eb/30/l?primer=7cdcb44be...	10 ms
/af/d7e23d/00000000000000007735a6ed/30/l?primer=7cdcb44be...	10 ms
/af/f02478/00000000000000007735a6f1/30/l?primer=7cdcb44be...	10 ms
/af/d6baab/00000000000000003b9ad2de/27/l?primer=7cdcb44be...	10 ms
/af/2e2357/00000000000000000001709f/27/l?primer=7cdcb44be...	5.0 ms
/af/d32e26/00000000000000000001709b/27/l?primer=7cdcb44be...	5.0 ms
/af/af619f/00000000000000003b9b00c5/27/l?primer=7cdcb44be...	5.0 ms
/af/6c275f/00000000000000003b9b00c6/27/l?primer=7cdcb44be...	5.0 ms
/af/2011b6/00000000000000003b9b00c1/27/l?primer=7cdcb44be...	5.0 ms
/af/24a439/0000000000000000000170a9/27/l?primer=7cdcb44be...	5.0 ms
/af/af66cf/0000000000000000000170a5/27/l?primer=7cdcb44be...	5.0 ms
/af/1db03a/00000000000000007735a08e/30/l?primer=7cdcb44be...	5.0 ms
/af/40cfbf/00000000000000007735a08f/30/l?primer=7cdcb44be...	5.0 ms

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:66.667 source:map[column:136722 line:11 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]]]

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:47.402 source:map[column:35728 line:0 type:source-location url:https://cdn.prod.website-files.com/64394b14f51ad1813a0b6ab2/js/webflow.schunk.0bc582661076b225.js urlProvider:network]] map[reflowTime:0.585 source:map[column:14069 line:0 type:source-location url:https://cdn.prod.website-files.com/64394b14f51ad1813a0b6ab2/js/webflow.ceecd02f.9d76520f81668f6b.js urlProvider:network]] map[reflowTime:7.571 source:map[column:90334 line:2 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]] map[reflowTime:8.181 source:map[column:14208 line:64 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]] map[reflowTime:4.287 source:map[column:15439 line:64 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]] map[reflowTime:1.997 source:map[column:36492 line:164 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]] map[reflowTime:25.565 source:map[column:72329 line:50 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]] map[reflowTime:1.787 source:map[column:89681 line:50 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]] map[reflowTime:1.587 source:map[column:89476 line:50 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]] map[reflowTime:6.028 source:map[column:87293 line:2 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]] map[reflowTime:8.335 source:map[column:10878 line:64 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]] map[reflowTime:1.329 source:map[column:19998 line:168 type:source-location url:https://universe-static.elfsightcdn.com/app-releases/google-reviews/stable/v3.56.6/61fececee041c088fa9d6945963b0e759719cdbb/widget/googleReviews.js urlProvider:network]]]

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
Invisalign Orthodontic Treatment in London `div#Studio > div.content-wrapper > div.wide-column-3 > img.step-image`	/64394b14f51ad1813a0b6ab2/64394b14f51ad180df0b6b05_Step%2...	286.0 KiB	232.9 KiB
FREE Invisalign® Smile Assessment consultation Book your free Invisalign® Smil… `body > div#Studio`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1bfac0b6afe_Left I...	755.2 KiB	181.9 KiB
Best Orthodontics Invisalign London `div#teeth-whitening > div.split-column > div.image-section-split > img.split-image-2`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1b5480b6b1e_Made%2...	95.0 KiB	52.6 KiB
Invisalign Braces in London `div#Studio > div.content-wrapper > div.wide-column-3 > img.step-image`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1d59b0b6b18_Step%2...	105.9 KiB	49.2 KiB
Invisalign Offers London `div#Studio > div.content-wrapper > div.wide-column-3 > img.step-image`	/64394b14f51ad1813a0b6ab2/64394b14f51ad152400b6b02_Step%2...	87.1 KiB	41.0 KiB
body > div.content-section > div.content-wrapper > img.icon `body > div.content-section > div.content-wrapper > img.icon`	/64394b14f51ad1813a0b6ab2/64394b14f51ad173eb0b6aee_1A Ico...	40.1 KiB	39.3 KiB
div#Slide-1 > div.banner-overlay > div.hero-banner-section > img.associate-logo `div#Slide-1 > div.banner-overlay > div.hero-banner-section > img.associate-logo`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1826a0b6d33_Invisa...	24.3 KiB	19.1 KiB
div.flex-element > div.flex-wrapper > div.treatment-item > img.smile-icon `div.flex-element > div.flex-wrapper > div.treatment-item > img.smile-icon`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1f3ec0b6c18_60dc44...	19.4 KiB	18.5 KiB
div.flex-element > div.flex-wrapper > div.treatment-item > img.smile-icon `div.flex-element > div.flex-wrapper > div.treatment-item > img.smile-icon`	/64394b14f51ad1813a0b6ab2/64394b14f51ad18d500b6c27_60dc44...	17.2 KiB	16.1 KiB
div.footer-column > div.footer-info-wrapper > div.right-block-footer > img.logo `div.footer-column > div.footer-info-wrapper > div.right-block-footer > img.logo`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1c58d0b6af5_1A Log...	16.2 KiB	13.4 KiB
Invisalign London Banner `div.home-slider > div#w-slider-mask-0 > div#Slide-1 > img.banner-image`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1ae3e0b6b1c_Invisa...	56.4 KiB	12.8 KiB
div.flex-element > div.flex-wrapper > div.treatment-item > img.smile-icon `div.flex-element > div.flex-wrapper > div.treatment-item > img.smile-icon`	/64394b14f51ad1813a0b6ab2/64394b14f51ad110400b6c1c_60dc44...	12.2 KiB	11.4 KiB
div#Studio > div.content-wrapper > div.wide-column-3 > img.step `div#Studio > div.content-wrapper > div.wide-column-3 > img.step`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1df080b6af6_Step 3...	6.8 KiB	5.9 KiB
div#Studio > div.content-wrapper > div.wide-column-3 > img.step `div#Studio > div.content-wrapper > div.wide-column-3 > img.step`	/64394b14f51ad1813a0b6ab2/64394b14f51ad10b3e0b6b04_Step 2...	6.1 KiB	5.3 KiB
div.content-section > div.content-wrapper > div.logos-wrapper > img.associate-logo `div.content-section > div.content-wrapper > div.logos-wrapper > img.associate-logo`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1f4c60b6d32_Invisa...	15.0 KiB	4.8 KiB
div#Studio > div.content-wrapper > div.wide-column-3 > img.step `div#Studio > div.content-wrapper > div.wide-column-3 > img.step`	/64394b14f51ad1813a0b6ab2/64394b14f51ad18ce10b6b00_Step 1...	5.4 KiB	4.7 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-10-IMG

nodeLabel: Invisalign London Banner

path: 3,HTML,1,BODY,1,DIV,0,DIV,0,DIV,0,DIV,0,IMG

selector: div.home-slider > div#w-slider-mask-0 > div#Slide-1 > img.banner-image

snippet: <img src="https://cdn.prod.website-files.com/64394b14f51ad1813a0b6ab2/64394b14f51ad1…" loading="lazy" sizes="100vw" srcset="https://cdn.prod.website-files.com/64394b14f51ad1813a0b6ab2/64394b14f51ad1…" alt="Invisalign London Banner" class="banner-image home">

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.

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

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
use.typekit.net/nei6tio.js	7.8 KiB	453 ms
ajax.googleapis.com/ajax/libs/webfont/1.6.26/webfont.js	5.9 KiB	1.2 s
/64394b14f51ad1813a0b6ab2/66ba5a08efe71070f98dd10a/67e418...	878 B	766 ms

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

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

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.

Diagnostics

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: 2.7 s 474.6 KiB

URL	Transfer Size	Est Savings
/app-releases/google-reviews/stable/v3.56.6/61fececee041c...	460.4 KiB	211.1 KiB
cookie.bestfreecdn.com/storage/js/cookie-3246.js?ver=4	100.5 KiB	87.3 KiB
www.googletagmanager.com/gtag/js?id=G-FNY8MSBLER	177.2 KiB	74.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-TTF36FW	122.9 KiB	62.8 KiB
static.botsrv2.com/website/js/dll.d296aaca.min.js	51.2 KiB	38.5 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
/app-releases/google-reviews/stable/v3.56.6/61fececee041c...	2.0 s	1.4 s	135 ms
/64394b14f51ad1813a0b6ab2/js/webflow.ceecd02f.9d76520f816...	1.2 s	266 ms	6.9 ms
www.1aorthodontics.com/orthodontic-treatment/invisalign	664 ms	50 ms	3.8 ms
Unattributable	588 ms	31 ms	0.0 ms
/js/jquery-3.5.1.min.dc5e7f18c8.js?site=64394b14f51ad1813...	214 ms	134 ms	7.5 ms
/64394b14f51ad1813a0b6ab2/66ba5a08efe71070f98dd10a/67e418...	161 ms	159 ms	0.3 ms
static.botsrv2.com/website/js/widget2.94a02b9e.min.js	160 ms	138 ms	6.1 ms
www.googletagmanager.com/gtm.js?id=GTM-TTF36FW	143 ms	116 ms	26 ms
www.googletagmanager.com/gtag/js?id=G-FNY8MSBLER	96 ms	54 ms	41 ms
cookie.bestfreecdn.com/storage/js/cookie-3246.js?ver=4	92 ms	43 ms	50 ms
use.typekit.net/nei6tio.js	53 ms	43 ms	2.9 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
Script Evaluation	2.5 s
Other	1.2 s
Style & Layout	1.2 s
Script Parsing & Compilation	304 ms
Rendering	160 ms
Garbage Collection	97 ms
Parse HTML & CSS	52 ms

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
/64394b14f51ad1813a0b6ab2/64394b14f51ad1bfac0b6afe_Left I...	755.7 KiB
/app-releases/google-reviews/stable/v3.56.6/61fececee041c...	461.8 KiB
/64394b14f51ad1813a0b6ab2/64394b14f51ad159da0b6af1_Right ...	421.3 KiB
static.botsrv2.com/website/js/bot.542baea2.min.js	415.3 KiB
/64394b14f51ad1813a0b6ab2/64394b14f51ad180df0b6b05_Step%2...	286.5 KiB
www.googletagmanager.com/gtag/js?id=G-FNY8MSBLER	177.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-TTF36FW	123.2 KiB
/64394b14f51ad1813a0b6ab2/64394b14f51ad1d59b0b6b18_Step%2...	106.3 KiB
cookie.bestfreecdn.com/storage/js/cookie-3246.js?ver=4	101.0 KiB
/64394b14f51ad1813a0b6ab2/64394b14f51ad1b5480b6b1e_Made%2...	95.4 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
body > div.content-section > div.content-wrapper > img.icon `body > div.content-section > div.content-wrapper > img.icon`	/64394b14f51ad1813a0b6ab2/64394b14f51ad173eb0b6aee_1A Ico...
div#Studio > div.content-wrapper > div.wide-column-3 > img.step `div#Studio > div.content-wrapper > div.wide-column-3 > img.step`	/64394b14f51ad1813a0b6ab2/64394b14f51ad18ce10b6b00_Step 1...
div#Studio > div.content-wrapper > div.wide-column-3 > img.step `div#Studio > div.content-wrapper > div.wide-column-3 > img.step`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1df080b6af6_Step 3...
div#Studio > div.content-wrapper > div.wide-column-3 > img.step `div#Studio > div.content-wrapper > div.wide-column-3 > img.step`	/64394b14f51ad1813a0b6ab2/64394b14f51ad10b3e0b6b04_Step 2...
div.header > div.header-5 > a.header-logo > img.header-logo-image `div.header > div.header-5 > a.header-logo > img.header-logo-image`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1c58d0b6af5_1A Log...
div.footer-column > div.footer-info-wrapper > div.right-block-footer > img.logo `div.footer-column > div.footer-info-wrapper > div.right-block-footer > img.logo`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1c58d0b6af5_1A Log...
Invisalign Offers London `div#Studio > div.content-wrapper > div.wide-column-3 > img.step-image`	/64394b14f51ad1813a0b6ab2/64394b14f51ad152400b6b02_Step%2...
Invisalign Orthodontic Treatment in London `div#Studio > div.content-wrapper > div.wide-column-3 > img.step-image`	/64394b14f51ad1813a0b6ab2/64394b14f51ad180df0b6b05_Step%2...
Invisalign Braces in London `div#Studio > div.content-wrapper > div.wide-column-3 > img.step-image`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1d59b0b6b18_Step%2...
div.split-background > div.text-split-wrapper > div.text-wrapper > img.associate-logo `div.split-background > div.text-split-wrapper > div.text-wrapper > img.associate-logo`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1edf30b6b61_Invisa...
div#Slide-1 > div.banner-overlay > div.hero-banner-section > img.associate-logo `div#Slide-1 > div.banner-overlay > div.hero-banner-section > img.associate-logo`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1826a0b6d33_Invisa...
div.content-section > div.content-wrapper > div.logos-wrapper > img.associate-logo `div.content-section > div.content-wrapper > div.logos-wrapper > img.associate-logo`	/64394b14f51ad1813a0b6ab2/64394b14f51ad1f4c60b6d32_Invisa...
div.content-section > div.content-wrapper > div.logos-wrapper > img.invisalign-logo `div.content-section > div.content-wrapper > div.logos-wrapper > img.invisalign-logo`	/64394b14f51ad1813a0b6ab2/64394b14f51ad168fc0b6d0e_Fergus...
div#Studio > div.content-wrapper > div.wide-column-3 > img.step `div#Studio > div.content-wrapper > div.wide-column-3 > img.step`
Invisalign Orthodontist in London `div#Studio > div.content-wrapper > div.wide-column-3 > img.step-image`
div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star `div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star`
div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star `div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star`
div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star `div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star`
div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star `div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star`
div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star `div.content-columns > div.review-top-meta > div.review-average-stars > img.review-average-star`

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

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Reduce unused CSS

●Avoid long main-thread tasks 14 long tasks found

●Avoid non-composited animations 2 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 30 ms

●Server Backend Latencies 290 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 20 ms

●Avoid large layout shifts 8 layout shifts found

○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
Invisalign® in Wandsworth `div.content-wrapper > p.intro-text > a > strong`
Invisalign® `p.intro-text > a > strong > em`
What are the benefits of the Invisalign system? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
What is the Invisalign system? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
How much does Invisalign treatment cost? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
Is this a new way to straighten teeth? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
How does the Invisalign clear aligner system work? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
What is the minimum age of a patient that can be treated with Invisalign aligne… `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
Invisalign or Fixed braces? Which one is right for my teeth? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
How long does Invisalign treatment take? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
How often must I see my dentist once I have started Invisalign treatment? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
Will TMJ affect Invisalign treatment? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
Is the Invisalign treatment painful? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
Can my child have Invisalign / Teenager have Invisalign? `div.faq-item > div.faq-wrap > div.faq-question-wrap > div.question`
161 reviews `div.HeaderContainer__Inner-sc-f09107d3-0 > div.HeaderInfoContainer__Info-sc-b8ef8d58-0 > div.HeaderRating__RatingContainer-sc-c166f32d-0 > span.HeaderRating__ReviewsCount-sc-c166f32d-2`
Read more `div.ReviewContent__Container-sc-af26fca2-0 > div.ReviewText__Container-sc-9a1e5e00-0 > div.ShortenedText__Container-sc-bc487605-0 > div.TextControl__BaseControl-sc-9c1b370d-0`
Posted on Google `div.ReviewBackground__Container-sc-aaed7194-0 > div.ReviewAlignContainer__Container-sc-e23e8b23-0 > a.ReviewLinkContainer__Link-sc-d682d000-0 > div.ReviewSource__StyledReviewInfo-sc-304bff04-6`
Google `a.ReviewLinkContainer__Link-sc-d682d000-0 > div.ReviewSource__StyledReviewInfo-sc-304bff04-6 > div.ReviewSource__SourceIconContainer-sc-304bff04-0 > div.ReviewSource__SourceName-sc-304bff04-1`
Opening Hours `div.footer-info-wrapper > div.footer-info-wrapper > div.left-block-footer > h5.heading-5`
Contact us `div.footer-column > div.footer-info-wrapper > div.left-block-footer > h5.heading-5`
0208 944 5545 `div.footer-info-wrapper > div.left-block-footer > p.paragraph > a.phone`

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

Failing Elements
div#w-tabs-0-data-w-pane-0 > div.w-embed > div#protocus-Zm9ybXMvSERQL0RlbnRhbCBXZWJzaXRlIENvbnRhY3QgRm9ybSAoY29weSkgKGNvcHkpIChjb3B5KS50eHQ > iframe#protocus-frame-Zm9ybXMvSERQL0RlbnRhbCBXZWJzaXRlIENvbnRhY3QgRm9ybSAoY29weSkgKGNvcHkpIChjb3B5KS50eHQ `div#w-tabs-0-data-w-pane-0 > div.w-embed > div#protocus-Zm9ybXMvSERQL0RlbnRhbCBXZWJzaXRlIENvbnRhY3QgRm9ybSAoY29weSkgKGNvcHkpIChjb3B5KS50eHQ > iframe#protocus-frame-Zm9ybXMvSERQL0RlbnRhbCBXZWJzaXRlIENvbnRhY3QgRm9ybSAoY29weSkgKGNvcHkpIChjb3B5KS50eHQ`
div#quriobotWidgetFoldOut > div.fold-out__wrapper > div.fold-out__iframe-wrapper > iframe.fold-out__iframe `div#quriobotWidgetFoldOut > div.fold-out__wrapper > div.fold-out__iframe-wrapper > iframe.fold-out__iframe`

div#w-tabs-0-data-w-pane-0 > div.w-embed > div#protocus-Zm9ybXMvSERQL0RlbnRhbCBXZWJzaXRlIENvbnRhY3QgRm9ybSAoY29weSkgKGNvcHkpIChjb3B5KS50eHQ > iframe#protocus-frame-Zm9ybXMvSERQL0RlbnRhbCBXZWJzaXRlIENvbnRhY3QgRm9ybSAoY29weSkgKGNvcHkpIChjb3B5KS50eHQ

div#w-tabs-0-data-w-pane-0 > div.w-embed > div#protocus-Zm9ybXMvSERQL0RlbnRhbCBXZWJzaXRlIENvbnRhY3QgRm9ybSAoY29weSkgKGNvcHkpIChjb3B5KS50eHQ > iframe#protocus-frame-Zm9ybXMvSERQL0RlbnRhbCBXZWJzaXRlIENvbnRhY3QgRm9ybSAoY29weSkgKGNvcHkpIChjb3B5KS50eHQ

div#quriobotWidgetFoldOut > div.fold-out__wrapper > div.fold-out__iframe-wrapper > iframe.fold-out__iframe div#quriobotWidgetFoldOut > div.fold-out__wrapper > div.fold-out__iframe-wrapper > iframe.fold-out__iframe

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div.header > div.header-5 > a.header-logo `body > div.header > div.header-5 > a.header-logo`

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
About the Invisalign® clear aligner system `div.split-background > div.text-split-wrapper > div.text-wrapper > h3.heading-3`
Opening Hours `div.footer-info-wrapper > div.footer-info-wrapper > div.left-block-footer > h5.heading-5`

These are opportunities to improve keyboard navigation in your application.

Internationalization and localization

Specifying a valid BCP 47 language helps screen readers announce text properly. Learn how to use the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.wf-droidsans-n7-active `html.wf-droidsans-n7-active`

These are opportunities to improve the interpretation of your content by users in different locales.

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
Nicki M `div.ReviewBackground__Container-sc-aaed7194-0 > div.ReviewAuthorBlock__AuthorBlockContainer-sc-80eca1fc-5 > div.ReviewAuthorBlock__InfoContainer-sc-80eca1fc-4 > a.ReviewLinkContainer__Link-sc-d682d000-0`

○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

●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

●`[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.

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

●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

●Links are distinguishable without relying on color.

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

●Touch targets have sufficient size and spacing.

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

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

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

○`[accesskey]` values are unique

○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 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

○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

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

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

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○`<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.

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

○Identical links have the same purpose.

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

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
div#teeth-whitening > div.split-column > div.split-background > img.overlay-left `div#teeth-whitening > div.split-column > div.split-background > img.overlay-left`	/64394b14f51ad1813a0b6ab2/64394b14f51ad120110b6aeb_Overla...	411 x 440 (0.93)	800 x 789 (1.01)

●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

●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

●Ensure proper origin isolation with COOP

●Mitigate clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

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
div#quriobotWidgetFoldOut > div.fold-out__wrapper > div.fold-out__header > a.fold-out__title `div#quriobotWidgetFoldOut > div.fold-out__wrapper > div.fold-out__header > a.fold-out__title`

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`