Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

dellprimaryschool.co.uk

Dell Primary School - Home

Page Load Speed

3.3 sec in total

First Response

853 ms

Resources Loaded

2.2 sec

Page Rendered

243 ms

dellprimaryschool.co.uk screenshot

About Website

Visit dellprimaryschool.co.uk now to see the best up-to-date Dell Primary School content and also check out these interesting facts you probably never knew about dellprimaryschool.co.uk

Welcome to the website of Dell Primary School

Visit dellprimaryschool.co.uk

Key Findings

We analyzed Dellprimaryschool.co.uk page load time and found that the first response time was 853 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

dellprimaryschool.co.uk performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value6.5 s

38/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.258

48/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

Network Requests Diagram

www.dellprimaryschool.co.uk

853 ms

presenter_prologue_css.7b7812f9.css

459 ms

all-site-icon-choices.a5b47c15.css

412 ms

right-nav.css

349 ms

style.css

357 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Dellprimaryschool.co.uk, 39% (17 requests) were made to Primarysite-prod.s3.amazonaws.com and 32% (14 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (853 ms) belongs to the original domain Dellprimaryschool.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 632.0 kB (63%)

Content Size

1.0 MB

After Optimization

372.3 kB

In fact, the total size of Dellprimaryschool.co.uk main page is 1.0 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. 65% of websites need less resources to load. Javascripts take 666.2 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 90.3 kB

  • Original 121.9 kB
  • After minification 117.9 kB
  • After compression 31.6 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 90.3 kB or 74% of the original size.

Image Optimization

-23%

Potential reduce by 22.4 kB

  • Original 98.4 kB
  • After minification 76.0 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. Obviously, Dell Primary School needs image optimization as it can save up to 22.4 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 426.5 kB

  • Original 666.2 kB
  • After minification 666.1 kB
  • After compression 239.7 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 426.5 kB or 64% of the original size.

CSS Optimization

-79%

Potential reduce by 92.8 kB

  • Original 117.8 kB
  • After minification 113.8 kB
  • After compression 25.0 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. Dellprimaryschool.co.uk needs all CSS files to be minified and compressed as it can save up to 92.8 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (82%)

Requests Now

28

After Optimization

5

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dell Primary School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dellprimaryschool.co.uk accessibility score

85

Accessibility Issues

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.

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

dellprimaryschool.co.uk best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dellprimaryschool.co.uk 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

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 Dellprimaryschool.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 Dellprimaryschool.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

Open Graph description is not detected on the main page of Dell Primary School. 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: