Tools & Wizards About Us
dessian.co.uk screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

dessian.co.uk

Dessian - PVCu fabricators… | Dessian PVCu Fabricators UK and Ireland

Page Load Speed

2.6 sec in total

First Response

89 ms

Resources Loaded

2.2 sec

Page Rendered

272 ms

dessian.co.uk screenshot

About Website

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

Dessian is one of UK and Ireland's leading manufacturers of uPVC windows and doors with a 30 year heritage.

Visit dessian.co.uk

Key Findings

We analyzed Dessian.co.uk page load time and found that the first response time was 89 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

dessian.co.uk performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value12.3 s

3/100

10%

TBT (Total Blocking Time)

Value14,810 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value29.3 s

0/100

10%

Network Requests Diagram

www.dessian.co.uk

89 ms

HE95PWSfZceztbaNZU61ozxk8UtQSBF3sIGll7XzF4Xfe7jIfFHN4UJLFRbh52jhWDjXFhsqjRj3jcZcjhJkwQbXFDsRFRgcZsnlMKG0jAFu-WsoShFGZAsude80ZkoRdhXCHKoyjamTiY8Djhy8ZYmC-Ao1Oco8if37OcBDOcu8OfG0ZemDSh8ydKoDSWmyScmDSeBRZPoRdhXCHKoDSWmyScmDSeBRZWFR-emqiAUTdcS0jhNlOeBRiA8XpWFR-emqiAUTdcS0jhNlOeBRiA8XpWFR-emqiAUTdcS0dcmXOeBDOcu8Oes8SaFTjAt0jhv0iACCZemDSh8ydKoDSWmyScmDSeBRZPoRdhXCdeNRjAUGdaFXOYFUiABkZWF3jAF8ShFGZAsude80ZkoRdhXCiaiaOcBRiA8XpWFR-emqiAUTdcS0jhNlOYiaikoyjamTiY8Djhy8ZYmC-Ao1Oco8ifUaiaS0jWw0dA9CiaiaOcs8SaFTjAt0jhv0iACCiaiaOcs8SaFTjAt0SaBujW48Sagyjh90jhNlOYiaikoDSWmyScmDSeBRZWFR-emqiAUTdcS0jhNlJ6lyZemCde9lShB0SkJV-eBCpABkZfuq-WF3deBoH6GJNGbgIMMjMkMfH6GJ_tbgIMMjgkMfH6GJNtbgIMMj2PMfH6GJvJbgIMMjIPMfH6GJojtfIMIjMkMfH6GJ_JtfIMIjgKMfH6GJ_jtfIMIjgkMfH6GJoGtfIMIj2PMfH6GJ_GtfIMIjIPMfqMeH3NcTg6.js

107 ms

legacy.js

86 ms

modern.js

100 ms

extract-css-runtime-ec1398cb0812a32f62d8-min.en-US.js

88 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Dessian.co.uk, 41% (17 requests) were made to Images.squarespace-cdn.com and 24% (10 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Images.squarespace-cdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 238.9 kB (12%)

Content Size

2.0 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dessian.co.uk main page is 2.0 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. 45% of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 202.2 kB

  • Original 230.1 kB
  • After minification 211.4 kB
  • After compression 27.8 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 202.2 kB or 88% of the original size.

Image Optimization

-4%

Potential reduce by 30.2 kB

  • Original 749.8 kB
  • After minification 719.6 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. Dessian images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 6.4 kB

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 999.6 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.

CSS Optimization

-1%

Potential reduce by 78 B

  • Original 9.9 kB
  • After minification 9.9 kB
  • After compression 9.8 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. Dessian.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (55%)

Requests Now

31

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dessian. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.dessian.co.uk

www.dessian.co.uk

89 ms

HE95PWSfZceztbaNZU61ozxk8UtQSBF3sIGll7XzF4Xfe7jIfFHN4UJLFRbh52jhWDjXFhsqjRj3jcZcjhJkwQbXFDsRFRgcZsnlMKG0jAFu-WsoShFGZAsude80ZkoRdhXCHKoyjamTiY8Djhy8ZYmC-Ao1Oco8if37OcBDOcu8OfG0ZemDSh8ydKoDSWmyScmDSeBRZPoRdhXCHKoDSWmyScmDSeBRZWFR-emqiAUTdcS0jhNlOeBRiA8XpWFR-emqiAUTdcS0jhNlOeBRiA8XpWFR-emqiAUTdcS0dcmXOeBDOcu8Oes8SaFTjAt0jhv0iACCZemDSh8ydKoDSWmyScmDSeBRZPoRdhXCdeNRjAUGdaFXOYFUiABkZWF3jAF8ShFGZAsude80ZkoRdhXCiaiaOcBRiA8XpWFR-emqiAUTdcS0jhNlOYiaikoyjamTiY8Djhy8ZYmC-Ao1Oco8ifUaiaS0jWw0dA9CiaiaOcs8SaFTjAt0jhv0iACCiaiaOcs8SaFTjAt0SaBujW48Sagyjh90jhNlOYiaikoDSWmyScmDSeBRZWFR-emqiAUTdcS0jhNlJ6lyZemCde9lShB0SkJV-eBCpABkZfuq-WF3deBoH6GJNGbgIMMjMkMfH6GJ_tbgIMMjgkMfH6GJNtbgIMMj2PMfH6GJvJbgIMMjIPMfH6GJojtfIMIjMkMfH6GJ_JtfIMIjgKMfH6GJ_jtfIMIjgkMfH6GJoGtfIMIj2PMfH6GJ_GtfIMIjIPMfqMeH3NcTg6.js

HE95PWSfZceztbaNZU61ozxk8UtQSBF3sIGll7XzF4Xfe7jIfFHN4UJLFRbh52jhWDjXFhsqjRj3jcZcjhJkwQbXFDsRFRgcZsnlMKG0jAFu-WsoShFGZAsude80ZkoRdhXCHKoyjamTiY8Djhy8ZYmC-Ao1Oco8if37OcBDOcu8OfG0ZemDSh8ydKoDSWmyScmDSeBRZPoRdhXCHKoDSWmyScmDSeBRZWFR-emqiAUTdcS0jhNlOeBRiA8XpWFR-emqiAUTdcS0jhNlOeBRiA8XpWFR-emqiAUTdcS0dcmXOeBDOcu8Oes8SaFTjAt0jhv0iACCZemDSh8ydKoDSWmyScmDSeBRZPoRdhXCdeNRjAUGdaFXOYFUiABkZWF3jAF8ShFGZAsude80ZkoRdhXCiaiaOcBRiA8XpWFR-emqiAUTdcS0jhNlOYiaikoyjamTiY8Djhy8ZYmC-Ao1Oco8ifUaiaS0jWw0dA9CiaiaOcs8SaFTjAt0jhv0iACCiaiaOcs8SaFTjAt0SaBujW48Sagyjh90jhNlOYiaikoDSWmyScmDSeBRZWFR-emqiAUTdcS0jhNlJ6lyZemCde9lShB0SkJV-eBCpABkZfuq-WF3deBoH6GJNGbgIMMjMkMfH6GJ_tbgIMMjgkMfH6GJNtbgIMMj2PMfH6GJvJbgIMMjIPMfH6GJojtfIMIjMkMfH6GJ_JtfIMIjgKMfH6GJ_jtfIMIjgkMfH6GJoGtfIMIj2PMfH6GJ_GtfIMIjIPMfqMeH3NcTg6.js

107 ms

legacy.js

legacy.js

86 ms

modern.js

modern.js

100 ms

extract-css-runtime-ec1398cb0812a32f62d8-min.en-US.js

extract-css-runtime-ec1398cb0812a32f62d8-min.en-US.js

88 ms

extract-css-moment-js-vendor-675f9459672cf966ca51-min.en-US.js

extract-css-moment-js-vendor-675f9459672cf966ca51-min.en-US.js

119 ms

cldr-resource-pack-a682f7ad337741eb05d6-min.en-US.js

cldr-resource-pack-a682f7ad337741eb05d6-min.en-US.js

92 ms

common-vendors-stable-22a3877c6773548a7f00-min.en-US.js

common-vendors-stable-22a3877c6773548a7f00-min.en-US.js

118 ms

common-vendors-e3dba6f4bd49760d9a75-min.en-US.js

common-vendors-e3dba6f4bd49760d9a75-min.en-US.js

296 ms

common-a6a52a3e45a26623da1b-min.en-US.js

common-a6a52a3e45a26623da1b-min.en-US.js

294 ms

performance-595641e15dc2776e5ea1-min.en-US.js

performance-595641e15dc2776e5ea1-min.en-US.js

292 ms

site.css

site.css

115 ms

static.css

static.css

91 ms

site-bundle.50b4de10587967c63a6c38385a95664b.js

site-bundle.50b4de10587967c63a6c38385a95664b.js

109 ms

Dessian_Logo-transparent.png

Dessian_Logo-transparent.png

394 ms

Images+for+website.jpg

Images+for+website.jpg

477 ms

20161027-CMP_5197.jpg

20161027-CMP_5197.jpg

618 ms

Authorised.png

Authorised.png

543 ms

Pencil-Ruler.png

Pencil-Ruler.png

582 ms

speakerk.png

speakerk.png

575 ms

headphones.png

headphones.png

1626 ms

people.png

people.png

823 ms

lowry.png

lowry.png

832 ms

monitor.png

monitor.png

1074 ms

Authorised.png

Authorised.png

1183 ms

police.jpg

police.jpg

1081 ms

registered.jpg

registered.jpg

1257 ms

bfrc.jpg

bfrc.jpg

1320 ms

bs.jpg

bs.jpg

1553 ms

doors.jpg

doors.jpg

1802 ms

licence.jpg

licence.jpg

1465 ms

d

d

51 ms

d

d

9 ms

d

d

20 ms

d

d

49 ms

d

d

48 ms

d

d

46 ms

d

d

47 ms

d

d

51 ms

d

d

50 ms

p.gif

p.gif

25 ms

Accessibility Review

dessian.co.uk accessibility score

100

Accessibility Issues

Best Practices

dessian.co.uk 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

dessian.co.uk SEO score

91

Search Engine Optimization Advices

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 Dessian.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 Dessian.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

dessian.co.uk

Open Graph description is not detected on the main page of Dessian. 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: