Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

dwightlondon.org

Independent International School | Private IB School | Dwight School London

Page Load Speed

4.2 sec in total

First Response

155 ms

Resources Loaded

3.3 sec

Page Rendered

796 ms

dwightlondon.org screenshot

About Website

Welcome to dwightlondon.org homepage info - get ready to check Dwight London best content for United Kingdom right away, or after learning these important things about dwightlondon.org

Dwight School London provides a world-class education with excellent student to teacher ratios for ages 2 to 18 years. A leading Independent International School for students 2-18. A world Internation...

Visit dwightlondon.org

Key Findings

We analyzed Dwightlondon.org page load time and found that the first response time was 155 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

dwightlondon.org performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value14.8 s

0/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value2,970 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.231

54/100

15%

TTI (Time to Interactive)

Value15.6 s

6/100

10%

Network Requests Diagram

dwightlondon.org

155 ms

www.dwightlondon.org

999 ms

gtm.js

88 ms

application-23426ac8b5c5d9a879303621d43fa1a3cef54c018b375a6e1e562843e3ff170d.css

50 ms

styles.cfm

355 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 48% of them (19 requests) were addressed to the original Dwightlondon.org, 23% (9 requests) were made to Use.typekit.net and 8% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (999 ms) belongs to the original domain Dwightlondon.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 115.5 kB (34%)

Content Size

342.5 kB

After Optimization

227.1 kB

In fact, the total size of Dwightlondon.org main page is 342.5 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. 65% of websites need less resources to load. CSS take 111.0 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 81.7 kB

  • Original 96.9 kB
  • After minification 94.9 kB
  • After compression 15.2 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 81.7 kB or 84% of the original size.

Image Optimization

-32%

Potential reduce by 24.8 kB

  • Original 77.3 kB
  • After minification 52.5 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, Dwight London needs image optimization as it can save up to 24.8 kB or 32% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-3%

Potential reduce by 1.8 kB

  • Original 57.3 kB
  • After minification 57.3 kB
  • After compression 55.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-6%

Potential reduce by 7.2 kB

  • Original 111.0 kB
  • After minification 111.0 kB
  • After compression 103.8 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. Dwightlondon.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 18 (67%)

Requests Now

27

After Optimization

9

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dwight London. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dwightlondon.org accessibility score

81

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 have valid values

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

Links do not have a discernible name

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

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

dwightlondon.org 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

High

Missing source maps for large first-party JavaScript

SEO Factors

dwightlondon.org SEO score

86

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

Links do not have descriptive text

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 Dwightlondon.org 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 Dwightlondon.org 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 data is detected on the main page of Dwight London. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: