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sk.johnlewis.com screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

sk.johnlewis.com

John Lewis & Partners | Department Store | Home, Fashion, Tech & More

Page Load Speed

31.9 sec in total

First Response

337 ms

Resources Loaded

21.8 sec

Page Rendered

9.8 sec

sk.johnlewis.com screenshot

About Website

Click here to check amazing Sk John Lewis content for United Kingdom. Otherwise, check out these important facts you probably never knew about sk.johnlewis.com

Shop latest trends and launches across Home, Fashion & Tech at John Lewis & Partners. Providing an inspiring wide range of products, for all life's moments.

Visit sk.johnlewis.com

Key Findings

We analyzed Sk.johnlewis.com page load time and found that the first response time was 337 ms and then it took 31.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

sk.johnlewis.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value19.0 s

0/100

25%

SI (Speed Index)

Value8.8 s

15/100

10%

TBT (Total Blocking Time)

Value1,840 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value26.1 s

0/100

10%

Network Requests Diagram

www.johnlewis.com

337 ms

newrelic.js

28 ms

jl-init-metrics.6badcf8f.js

158 ms

Bootstrap.js

158 ms

entry.js

76 ms

Our browser made a total of 125 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Sk.johnlewis.com, 24% (30 requests) were made to Johnlewis.scene7.com and 1% (1 request) were made to Tags.johnlewis.com. The less responsive or slowest element that took the longest time to load (19.7 sec) relates to the external source Johnlewis.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 846.5 kB (33%)

Content Size

2.5 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sk.johnlewis.com main page is 2.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 577.2 kB

  • Original 626.0 kB
  • After minification 608.7 kB
  • After compression 48.8 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 577.2 kB or 92% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 1.5 MB
  • After minification 1.5 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Sk John Lewis images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 247.9 kB

  • Original 393.0 kB
  • After minification 392.3 kB
  • After compression 145.1 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 247.9 kB or 63% of the original size.

CSS Optimization

-46%

Potential reduce by 21.4 kB

  • Original 45.9 kB
  • After minification 45.8 kB
  • After compression 24.6 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Sk.johnlewis.com needs all CSS files to be minified and compressed as it can save up to 21.4 kB or 46% of the original size.

Requests Breakdown

Number of requests can be reduced by 79 (69%)

Requests Now

114

After Optimization

35

  • Images
  • JavaScript
  • CSS

The browser has sent 114 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sk John Lewis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 50 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.johnlewis.com

www.johnlewis.com

337 ms

newrelic.js

newrelic.js

28 ms

jl-init-metrics.6badcf8f.js

jl-init-metrics.6badcf8f.js

158 ms

Bootstrap.js

Bootstrap.js

158 ms

entry.js

entry.js

76 ms

jlp-styles-jb.css

jlp-styles-jb.css

43 ms

jlp-vendor-polyfills.js

jlp-vendor-polyfills.js

38 ms

59cd0650198d6bd4124f.css

59cd0650198d6bd4124f.css

43 ms

polyfills-a40ef1678bae11e696dba45124eadd70.js

polyfills-a40ef1678bae11e696dba45124eadd70.js

43 ms

webpack-936d92c2ee460b7f815d.js

webpack-936d92c2ee460b7f815d.js

50 ms

framework-6112039f861e80a04131.js

framework-6112039f861e80a04131.js

60 ms

main-296bed497f4977d20a74.js

main-296bed497f4977d20a74.js

87 ms

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69 ms

index-11090d436ed5adaa8c51.js

index-11090d436ed5adaa8c51.js

61 ms

_buildManifest.js

_buildManifest.js

71 ms

_ssgManifest.js

_ssgManifest.js

78 ms

70a114ae

70a114ae

78 ms

jlp-vendor-bundle-react-production.js

jlp-vendor-bundle-react-production.js

92 ms

scaffold-vendor-5995f.css

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108 ms

scaffold-abb04.css

scaffold-abb04.css

95 ms

config.js

config.js

94 ms

auth.js

auth.js

119 ms

scaffold-vendor-13d47.js

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114 ms

scaffold-87e25.js

scaffold-87e25.js

112 ms

jl-recommendations-panel.js

jl-recommendations-panel.js

110 ms

main-8b64e.css

main-8b64e.css

314 ms

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commonResponsiveContainer-a9199.css

125 ms

commonHrefHelper-23af5.css

commonHrefHelper-23af5.css

126 ms

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commonButton-43b4e.css

123 ms

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commonImage-89b21.css

317 ms

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146 ms

AEMContainerWrapper-91ded.css

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144 ms

AEMDividerWrapper-62ade.css

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144 ms

AEMTitleWrapper-9c006.css

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316 ms

AEMOverlayWrapper-4e3dc.css

AEMOverlayWrapper-4e3dc.css

314 ms

AEMForegroundContainer-4e3dc.css

AEMForegroundContainer-4e3dc.css

318 ms

AEMImageWrapper-994a4.css

AEMImageWrapper-994a4.css

323 ms

AEMButtonPrimaryWrapper-59402.css

AEMButtonPrimaryWrapper-59402.css

324 ms

AEMCopyWrapper-9c006.css

AEMCopyWrapper-9c006.css

311 ms

AEMCustomisableHeadingWrapper-e0d0a.css

AEMCustomisableHeadingWrapper-e0d0a.css

301 ms

AEMTextLineWrapper-c89d7.css

AEMTextLineWrapper-c89d7.css

290 ms

AEMButtonSecondaryWrapper-59402.css

AEMButtonSecondaryWrapper-59402.css

283 ms

AEMCardCarouselWrapper-794cf.css

AEMCardCarouselWrapper-794cf.css

291 ms

AEMCardButtonWrapper-b3eab.css

AEMCardButtonWrapper-b3eab.css

289 ms

AEMButtonTertiaryWrapper-59402.css

AEMButtonTertiaryWrapper-59402.css

281 ms

AEMButtonCarouselWrapper-126b1.css

AEMButtonCarouselWrapper-126b1.css

275 ms

main-9adad.bundle.js

main-9adad.bundle.js

339 ms

commonResponsiveContainer-8563e.bundle.js

commonResponsiveContainer-8563e.bundle.js

331 ms

commonHrefHelper-10c06.bundle.js

commonHrefHelper-10c06.bundle.js

331 ms

commonButton-eecd1.bundle.js

commonButton-eecd1.bundle.js

324 ms

commonImage-90151.bundle.js

commonImage-90151.bundle.js

325 ms

commonCopy-5ccf9.bundle.js

commonCopy-5ccf9.bundle.js

319 ms

AEMContentPage-3be74.bundle.js

AEMContentPage-3be74.bundle.js

316 ms

AEMResponsiveContainerWrapper-a6601.bundle.js

AEMResponsiveContainerWrapper-a6601.bundle.js

311 ms

AEMContainerWrapper-8cbc4.bundle.js

AEMContainerWrapper-8cbc4.bundle.js

311 ms

AEMDividerWrapper-b97e7.bundle.js

AEMDividerWrapper-b97e7.bundle.js

296 ms

AEMTitleWrapper-10b03.bundle.js

AEMTitleWrapper-10b03.bundle.js

295 ms

AEMOverlayWrapper-60011.bundle.js

AEMOverlayWrapper-60011.bundle.js

297 ms

AEMFragmentWrapper-7535a.bundle.js

AEMFragmentWrapper-7535a.bundle.js

295 ms

AEMForegroundContainer-fb844.bundle.js

AEMForegroundContainer-fb844.bundle.js

287 ms

AEMImageWrapper-8dba6.bundle.js

AEMImageWrapper-8dba6.bundle.js

283 ms

AEMButtonPrimaryWrapper-2a235.bundle.js

AEMButtonPrimaryWrapper-2a235.bundle.js

282 ms

AEMCopyWrapper-32575.bundle.js

AEMCopyWrapper-32575.bundle.js

283 ms

AEMCustomisableHeadingWrapper-72fb2.bundle.js

AEMCustomisableHeadingWrapper-72fb2.bundle.js

266 ms

AEMTextLineWrapper-8e7df.bundle.js

AEMTextLineWrapper-8e7df.bundle.js

322 ms

AEMButtonSecondaryWrapper-006ad.bundle.js

AEMButtonSecondaryWrapper-006ad.bundle.js

265 ms

AEMRecommendationsPanelWrapper-96a33.bundle.js

AEMRecommendationsPanelWrapper-96a33.bundle.js

261 ms

hp-wk35-hero-bg-270922

hp-wk35-hero-bg-270922

994 ms

wk35-hero-b1-260922

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1083 ms

wk35-hero-b2-260922

wk35-hero-b2-260922

1661 ms

wk35-hero-b3-280922

wk35-hero-b3-280922

1276 ms

wk35-whats-new-b1-260922

wk35-whats-new-b1-260922

1279 ms

wk35-whats-new-b2-260922

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1364 ms

wk35-whats-new-b3-260922

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1749 ms

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1791 ms

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1391 ms

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1403 ms

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1855 ms

hp-apple-airpods-pro-220922

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1811 ms

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1795 ms

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1762 ms

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hp-wk35-new-brand-ladder3-230922

2145 ms

hp-brand-sweaty-betty-220922

hp-brand-sweaty-betty-220922

2167 ms

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hp-wk35-new-brand-ladder5-230922

1939 ms

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hp-wk35-new-brand-ladder6-270922

2221 ms

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2245 ms

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2515 ms

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2266 ms

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2559 ms

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2747 ms

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2359 ms

wk35-feature-this-week-b1-dt-260922

wk35-feature-this-week-b1-dt-260922

2630 ms

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wk35-feature-this-week-b2-dt-260922

2761 ms

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wk35-feature-this-week-b3-dt-260922

2488 ms

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wk35-feature-this-week-b4-dt-260922

2886 ms

hp-service-block-01-desktop-220922

hp-service-block-01-desktop-220922

2918 ms

hp-service-block-02-060922

hp-service-block-02-060922

2871 ms

AEMCardCarouselWrapper-1d1d4.bundle.js

AEMCardCarouselWrapper-1d1d4.bundle.js

155 ms

AEMCardButtonWrapper-8b9e9.bundle.js

AEMCardButtonWrapper-8b9e9.bundle.js

153 ms

AEMButtonTertiaryWrapper-ff1ae.bundle.js

AEMButtonTertiaryWrapper-ff1ae.bundle.js

154 ms

AEMButtonCarouselWrapper-83f87.bundle.js

AEMButtonCarouselWrapper-83f87.bundle.js

245 ms

recently-viewed-items.js

recently-viewed-items.js

147 ms

main.09d10511.js

main.09d10511.js

147 ms

U0cDzwB

U0cDzwB

149 ms

Proto-GillSansNovaforJL-Medium.woff

Proto-GillSansNovaforJL-Medium.woff

298 ms

Proto-GillSansNovaforJL-SemiBold.woff

Proto-GillSansNovaforJL-SemiBold.woff

299 ms

Proto-GillSansNovaforJL-Bold.woff

Proto-GillSansNovaforJL-Bold.woff

298 ms

john-lewis-partners-f6c40704.svg

john-lewis-partners-f6c40704.svg

218 ms

search-32px-outlined.svg

search-32px-outlined.svg

208 ms

close-32px-outlined.svg

close-32px-outlined.svg

235 ms

close-24px-outlined.svg

close-24px-outlined.svg

187 ms

profile-24px-outlined.svg

profile-24px-outlined.svg

190 ms

wishlist-24px-outlined.svg

wishlist-24px-outlined.svg

186 ms

basket-24px-outlined.svg

basket-24px-outlined.svg

186 ms

menu-24px-outlined.svg

menu-24px-outlined.svg

186 ms

U0cDzwB

U0cDzwB

672 ms

jl-recommendations-panel.8b2366c.css

jl-recommendations-panel.8b2366c.css

185 ms

jl-recommendations-panel.8b2366c.styles.chunk.js

jl-recommendations-panel.8b2366c.styles.chunk.js

174 ms

webcomponents-loader.js

webcomponents-loader.js

273 ms

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156 ms

state

state

19680 ms

webcomponents-sd-ce-pf.js

webcomponents-sd-ce-pf.js

19588 ms

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191 ms

https:/

https:/

2 ms

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176 ms

Accessibility Review

sk.johnlewis.com accessibility score

90

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

Names and labels

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.

Impact

Issue

High

Buttons do not have an accessible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best Practices

sk.johnlewis.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

sk.johnlewis.com SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sk.johnlewis.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Sk.johnlewis.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

sk.johnlewis.com

Open Graph data is detected on the main page of Sk John Lewis. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: