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nessy.co.uk screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

nessy.co.uk

Literacy support for dyslexia that follows the Science of Reading | Nessy

Page Load Speed

2.9 sec in total

First Response

261 ms

Resources Loaded

1.9 sec

Page Rendered

717 ms

nessy.co.uk screenshot

About Website

Click here to check amazing Nessy content. Otherwise, check out these important facts you probably never knew about nessy.co.uk

You've found Nessy; World leader in helping children who learn differently. Founded and run by educators and dyslexia specialists, our award-winning programs are guided by the Science of Reading.

Visit nessy.co.uk

Key Findings

We analyzed Nessy.co.uk page load time and found that the first response time was 261 ms and then it took 2.7 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

nessy.co.uk performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value11.8 s

0/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value2,140 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.16

73/100

15%

TTI (Time to Interactive)

Value18.6 s

3/100

10%

Network Requests Diagram

nessy.co.uk

261 ms

www.nessy.com

316 ms

en-us

162 ms

js

73 ms

jquery-3.6.0.min.js

26 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Nessy.co.uk, 72% (41 requests) were made to Nessy.com and 9% (5 requests) were made to Website-nessycdn.com. The less responsive or slowest element that took the longest time to load (692 ms) relates to the external source Nessy.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 65.8 kB (12%)

Content Size

528.6 kB

After Optimization

462.9 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Nessy.co.uk main page is 528.6 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. 60% of websites need less resources to load. Images take 403.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 65.6 kB

  • Original 80.1 kB
  • After minification 80.1 kB
  • After compression 14.5 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 65.6 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 18 B

  • Original 403.7 kB
  • After minification 403.7 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. Nessy images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 155 B

  • Original 44.8 kB
  • After minification 44.8 kB
  • After compression 44.6 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.

Requests Breakdown

Number of requests can be reduced by 24 (47%)

Requests Now

51

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nessy. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nessy.co.uk

nessy.co.uk

261 ms

www.nessy.com

www.nessy.com

316 ms

en-us

en-us

162 ms

js

js

73 ms

jquery-3.6.0.min.js

jquery-3.6.0.min.js

26 ms

0334c618ccab3f4353bc.css

0334c618ccab3f4353bc.css

117 ms

4a53594e90628411be20.css

4a53594e90628411be20.css

166 ms

a8acd2970bed333d2b92.css

a8acd2970bed333d2b92.css

249 ms

4721c4906a68a46d03d8.css

4721c4906a68a46d03d8.css

322 ms

polyfills-63e1a6c089092a1963db.js

polyfills-63e1a6c089092a1963db.js

447 ms

main-c9f91cf78053300ae13f.js

main-c9f91cf78053300ae13f.js

444 ms

webpack-e067438c4cf4ef2ef178.js

webpack-e067438c4cf4ef2ef178.js

443 ms

framework.08e36673e2f205f75f8c.js

framework.08e36673e2f205f75f8c.js

497 ms

commons.68bd3100b0ebc64a6c78.js

commons.68bd3100b0ebc64a6c78.js

444 ms

dbdc4ae3df684f37a1bdff82875ba87f4ed77e5b.8f031cda75571eb878b5.js

dbdc4ae3df684f37a1bdff82875ba87f4ed77e5b.8f031cda75571eb878b5.js

449 ms

4f03e3fff0ff5e5b69681798304668a4a8b59a4a.ee9072b02588fdfe568e.js

4f03e3fff0ff5e5b69681798304668a4a8b59a4a.ee9072b02588fdfe568e.js

449 ms

e0df573d034f911838e9fb3b059abf01bb4e0760.4311b6d8bf26525da177.js

e0df573d034f911838e9fb3b059abf01bb4e0760.4311b6d8bf26525da177.js

449 ms

_app-3c98de1b6797d6932547.js

_app-3c98de1b6797d6932547.js

499 ms

893a07a6e24221e8f2ec1b2a160a16e32a7c745a_CSS.ff5578978733a40a67a3.js

893a07a6e24221e8f2ec1b2a160a16e32a7c745a_CSS.ff5578978733a40a67a3.js

496 ms

95a7d9828e7918efde71378dbedab8e2c931a22b.afd79749fdfe5ffe3726.js

95a7d9828e7918efde71378dbedab8e2c931a22b.afd79749fdfe5ffe3726.js

628 ms

95a7d9828e7918efde71378dbedab8e2c931a22b_CSS.c3c33dcc23d96beb9452.js

95a7d9828e7918efde71378dbedab8e2c931a22b_CSS.c3c33dcc23d96beb9452.js

496 ms

section-a44fefd8a51b0307571b.js

section-a44fefd8a51b0307571b.js

496 ms

_buildManifest.js

_buildManifest.js

552 ms

_ssgManifest.js

_ssgManifest.js

551 ms

conversion.js

conversion.js

112 ms

analytics.js

analytics.js

25 ms

gtm.js

gtm.js

83 ms

improve-your-spelling-thumbnail-4.png

improve-your-spelling-thumbnail-4.png

95 ms

Seaweed.png

Seaweed.png

444 ms

Seaweed2.png

Seaweed2.png

444 ms

Submarine.png

Submarine.png

454 ms

Jellyfish.png

Jellyfish.png

525 ms

CoralLeft.png

CoralLeft.png

526 ms

CoralRight.png

CoralRight.png

525 ms

SuperHeroTopLeft.svg

SuperHeroTopLeft.svg

528 ms

SuperHeroBuoyLeft-new.svg

SuperHeroBuoyLeft-new.svg

534 ms

SuperHeroTopRight.svg

SuperHeroTopRight.svg

596 ms

SuperHeroBuoyRight-new.svg

SuperHeroBuoyRight-new.svg

670 ms

product-tile-hr.jpg

product-tile-hr.jpg

94 ms

product-tile-nrs.jpg

product-tile-nrs.jpg

104 ms

product-tile-ns-home-v4.png

product-tile-ns-home-v4.png

109 ms

ecommerce.js

ecommerce.js

41 ms

screenshot-2024-04-02-151112.png

screenshot-2024-04-02-151112.png

66 ms

collect

collect

12 ms

logo-bottom.svg

logo-bottom.svg

382 ms

logo-middle.svg

logo-middle.svg

384 ms

logo-eyes.svg

logo-eyes.svg

388 ms

logo-top.svg

logo-top.svg

393 ms

SuperHeroBgXxl.jpg

SuperHeroBgXxl.jpg

692 ms

MascotBg.png

MascotBg.png

473 ms

SuperHeroBoardLeft.svg

SuperHeroBoardLeft.svg

478 ms

SuperHeroBoardRight.svg

SuperHeroBoardRight.svg

474 ms

font.woff

font.woff

359 ms

font.woff

font.woff

413 ms

63 ms

17685

17685

28 ms

29 ms

Accessibility Review

nessy.co.uk accessibility score

87

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

High

Links do not have a discernible name

Best Practices

nessy.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nessy.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

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 Nessy.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 Nessy.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

nessy.co.uk

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