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iceland.co.uk screenshot

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

iceland.co.uk

Online Food Shopping | Iceland Groceries

Page Load Speed

3.8 sec in total

First Response

405 ms

Resources Loaded

3 sec

Page Rendered

421 ms

iceland.co.uk screenshot

About Website

Visit iceland.co.uk now to see the best up-to-date Iceland content for United Kingdom and also check out these interesting facts you probably never knew about iceland.co.uk

Shop online at Iceland Groceries and explore award winning products and convenient delivery slots. Free Next Day Delivery on orders over £40

Visit iceland.co.uk

Key Findings

We analyzed Iceland.co.uk page load time and found that the first response time was 405 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

iceland.co.uk performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value2,080 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.386

27/100

15%

TTI (Time to Interactive)

Value15.6 s

6/100

10%

Network Requests Diagram

www.iceland.co.uk

405 ms

d02b968de767541c076d5f17f7639bb8ba0f0405627c

18 ms

style.css

21 ms

polyfill.min.js

917 ms

gtm.js

151 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 49% of them (33 requests) were addressed to the original Iceland.co.uk, 37% (25 requests) were made to Assets.iceland.co.uk and 4% (3 requests) were made to Cdn-ukwest.onetrust.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Iceland.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 563.3 kB (29%)

Content Size

1.9 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Iceland.co.uk main page is 1.9 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. 60% of websites need less resources to load. Images take 930.7 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 368.4 kB

  • Original 532.1 kB
  • After minification 525.6 kB
  • After compression 163.6 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 368.4 kB or 69% of the original size.

Image Optimization

-3%

Potential reduce by 30.9 kB

  • Original 930.7 kB
  • After minification 899.8 kB

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. Iceland images are well optimized though.

JavaScript Optimization

-36%

Potential reduce by 161.8 kB

  • Original 453.7 kB
  • After minification 453.0 kB
  • After compression 292.0 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 161.8 kB or 36% of the original size.

CSS Optimization

-66%

Potential reduce by 2.2 kB

  • Original 3.3 kB
  • After minification 2.5 kB
  • After compression 1.1 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. Iceland.co.uk needs all CSS files to be minified and compressed as it can save up to 2.2 kB or 66% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (40%)

Requests Now

53

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Iceland. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.iceland.co.uk

www.iceland.co.uk

405 ms

d02b968de767541c076d5f17f7639bb8ba0f0405627c

d02b968de767541c076d5f17f7639bb8ba0f0405627c

18 ms

style.css

style.css

21 ms

polyfill.min.js

polyfill.min.js

917 ms

gtm.js

gtm.js

151 ms

otSDKStub.js

otSDKStub.js

98 ms

jquery.min.js

jquery.min.js

17 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

17 ms

jquery-ui.min.js

jquery-ui.min.js

19 ms

svg4everybody.js

svg4everybody.js

16 ms

slick.min.js

slick.min.js

20 ms

jquery.validate.min.js

jquery.validate.min.js

15 ms

jquery.zoom.min.js

jquery.zoom.min.js

44 ms

jquery.mask.min.js

jquery.mask.min.js

136 ms

jquery.payment.js

jquery.payment.js

30 ms

atrophy.min.js

atrophy.min.js

28 ms

app.js

app.js

45 ms

dwanalytics-22.2.js

dwanalytics-22.2.js

39 ms

dwac-21.7.js

dwac-21.7.js

35 ms

gretel.min.js

gretel.min.js

21 ms

GRQ

GRQ

41 ms

8fe2e3c2-b627-4527-9a51-e68feb595b1e.json

8fe2e3c2-b627-4527-9a51-e68feb595b1e.json

105 ms

location

location

95 ms

otBannerSdk.js

otBannerSdk.js

34 ms

6SR8N-6TVRQ-D8SA8-5JZAV-WUSN7

6SR8N-6TVRQ-D8SA8-5JZAV-WUSN7

199 ms

lock.svg

lock.svg

93 ms

CD-15311_Feefo_Platinum_Service_2023

CD-15311_Feefo_Platinum_Service_2023

210 ms

eye_regular.svg

eye_regular.svg

90 ms

null

null

437 ms

phone_icon

phone_icon

435 ms

Rosette%20PNG

Rosette%20PNG

439 ms

ECOM_CD_11967_ExclusiveBrands

ECOM_CD_11967_ExclusiveBrands

439 ms

the_range

the_range

439 ms

feefo-logo.svg

feefo-logo.svg

378 ms

MuseoSans-300.woff

MuseoSans-300.woff

487 ms

MuseoSans-500.woff

MuseoSans-500.woff

456 ms

MuseoSans-100.woff

MuseoSans-100.woff

439 ms

MuseoSans-700.woff

MuseoSans-700.woff

375 ms

MuseoSans-900.woff

MuseoSans-900.woff

787 ms

MuseoSans-300Italic.woff

MuseoSans-300Italic.woff

970 ms

MuseoSans-500Italic.woff

MuseoSans-500Italic.woff

817 ms

MuseoSans-100Italic.woff

MuseoSans-100Italic.woff

896 ms

MuseoSans-700Italic.woff

MuseoSans-700Italic.woff

594 ms

MuseoSans-900Italic.woff

MuseoSans-900Italic.woff

1033 ms

SuisseIntl-Bold.woff

SuisseIntl-Bold.woff

1100 ms

config.json

config.json

88 ms

bank-holiday-essentials

bank-holiday-essentials

61 ms

%C2%A31-or-less

%C2%A31-or-less

59 ms

free-delivery

free-delivery

373 ms

Plec_Blank

Plec_Blank

222 ms

%C2%A31%20Value%20Category

%C2%A31%20Value%20Category

147 ms

Frozen%20Category

Frozen%20Category

209 ms

Fresh%20Category

Fresh%20Category

200 ms

Food%20Cupboard%20Category

Food%20Cupboard%20Category

201 ms

10-for-10

10-for-10

225 ms

Plec_Blank

Plec_Blank

275 ms

3-for-10-mix-and-match

3-for-10-mix-and-match

274 ms

too-good-to-miss

too-good-to-miss

330 ms

5-for-5-lunch-favourites

5-for-5-lunch-favourites

338 ms

Mix-%26-Match-3-for-%C2%A310

Mix-%26-Match-3-for-%C2%A310

336 ms

3%20for%20%C2%A35%20Mix%20%26%20Match

3%20for%20%C2%A35%20Mix%20%26%20Match

367 ms

5%20for%20%C2%A35%20Mix%20%26%20Match

5%20for%20%C2%A35%20Mix%20%26%20Match

382 ms

Fizzy%20Drinks

Fizzy%20Drinks

441 ms

Household

Household

440 ms

10%20for%20%C2%A310

10%20for%20%C2%A310

443 ms

GHI_food_awards_2022_favourite_online_grocery

GHI_food_awards_2022_favourite_online_grocery

390 ms

page-not-found

page-not-found

685 ms

Accessibility Review

iceland.co.uk accessibility score

61

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-*] attributes do not match their roles

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

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

High

Image elements do not have [alt] attributes

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

iceland.co.uk best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

iceland.co.uk SEO score

84

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

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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

High

Tap targets are not sized appropriately

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 Iceland.co.uk 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 Iceland.co.uk 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

iceland.co.uk

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