Tools & Wizards About Us
christmas.tesco.com screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

christmas.tesco.com

Christmas 2022 - Christmas food, drinks and gifts - Tesco Groceries - Tesco Groceries

Page Load Speed

1.5 sec in total

First Response

135 ms

Resources Loaded

1.2 sec

Page Rendered

235 ms

christmas.tesco.com screenshot

About Website

Click here to check amazing Christmas Tesco content for United Kingdom. Otherwise, check out these important facts you probably never knew about christmas.tesco.com

Prepare early for Christmas 2023 and spread the cost by shopping our savings and deals for your Christmas dinners and gifts. And find inspiration for your seasonal parties. Browse party food, drinks f...

Visit christmas.tesco.com

Key Findings

We analyzed Christmas.tesco.com page load time and found that the first response time was 135 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

christmas.tesco.com performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value11.3 s

0/100

25%

SI (Speed Index)

Value4.5 s

73/100

10%

TBT (Total Blocking Time)

Value2,860 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.7 s

13/100

10%

Network Requests Diagram

christmas

135 ms

143 ms

global.datauri.css

15 ms

global.css

13 ms

global.desktop.css

9 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Christmas.tesco.com, 18% (3 requests) were made to Assets.adobedtm.com and 6% (1 request) were made to Cdn.tt.omtrdc.net. The less responsive or slowest element that took the longest time to load (653 ms) relates to the external source Tesco.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 251.3 kB (57%)

Content Size

437.6 kB

After Optimization

186.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Christmas.tesco.com main page is 437.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 279.4 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 25.5 kB

  • Original 36.0 kB
  • After minification 32.7 kB
  • After compression 10.6 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 25.5 kB or 71% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 51.2 kB
  • After minification 51.2 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. Christmas Tesco images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 197.1 kB

  • Original 279.4 kB
  • After minification 269.4 kB
  • After compression 82.4 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 197.1 kB or 71% of the original size.

CSS Optimization

-41%

Potential reduce by 28.8 kB

  • Original 70.9 kB
  • After minification 66.1 kB
  • After compression 42.1 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. Christmas.tesco.com needs all CSS files to be minified and compressed as it can save up to 28.8 kB or 41% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (79%)

Requests Now

14

After Optimization

3

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Christmas Tesco. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

christmas

christmas

135 ms

143 ms

global.datauri.css

global.datauri.css

15 ms

global.css

global.css

13 ms

global.desktop.css

global.desktop.css

9 ms

christmas.seo.css

christmas.seo.css

141 ms

satelliteLib-0ae141e3e8bba6a6671c57e9fba7c01799b47ec4.js

satelliteLib-0ae141e3e8bba6a6671c57e9fba7c01799b47ec4.js

63 ms

modernizr.0.js

modernizr.0.js

641 ms

ScrollWatch-1.1.0.min.js

ScrollWatch-1.1.0.min.js

151 ms

flickity.pkgd.min.js

flickity.pkgd.min.js

653 ms

mbox-contents-f86019c82f15e1301f4af77a684e10d5333c168f.js

mbox-contents-f86019c82f15e1301f4af77a684e10d5333c168f.js

33 ms

target.js

target.js

58 ms

ajax

ajax

191 ms

christmas2015.jpg

christmas2015.jpg

247 ms

global.2.js

global.2.js

56 ms

zu6TDmegV9ID37hA6c2Hjmm3gMb30O5wOPkZML13BDJlIdUGhLKP7J7oL0qE2EYUiHIZwRHFPCJHcBPBlH2RnAoSPcGSrX6gIOObClN5SXRIuwNyiqzWI+vPDXkcyJg0uFCbPz20+g0YrD6wAA==

zu6TDmegV9ID37hA6c2Hjmm3gMb30O5wOPkZML13BDJlIdUGhLKP7J7oL0qE2EYUiHIZwRHFPCJHcBPBlH2RnAoSPcGSrX6gIOObClN5SXRIuwNyiqzWI+vPDXkcyJg0uFCbPz20+g0YrD6wAA==

1 ms

s-code-contents-cdfd886a89de298a2cf33b768241a468463713ce.js

s-code-contents-cdfd886a89de298a2cf33b768241a468463713ce.js

23 ms

Accessibility Review

christmas.tesco.com accessibility score

85

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

[role]s are not contained by their required parent element

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

christmas.tesco.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

Page has valid source maps

SEO Factors

christmas.tesco.com SEO score

92

Search Engine Optimization Advices

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 Christmas.tesco.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 Christmas.tesco.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

christmas.tesco.com

Open Graph description is not detected on the main page of Christmas Tesco. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: