Tools & Wizards About Us
optilightwindows.co.uk screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

optilightwindows.co.uk

Roof windows and loft ladders | OptiLight, OptiLook, OptiStep

Page Load Speed

6.2 sec in total

First Response

398 ms

Resources Loaded

5.3 sec

Page Rendered

521 ms

optilightwindows.co.uk screenshot

About Website

Click here to check amazing Opti Light Windows content. Otherwise, check out these important facts you probably never knew about optilightwindows.co.uk

If you’re looking for a reliable window solution for your roof, the OptiLight and OptiLook roof windows are the best choice. We’re a reliable OptiLight and OptiLook reseller, but also OptiStep loft la...

Visit optilightwindows.co.uk

Key Findings

We analyzed Optilightwindows.co.uk page load time and found that the first response time was 398 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

optilightwindows.co.uk performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value960 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.236

53/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

optilightwindows.co.uk

398 ms

css

44 ms

style.min.css

362 ms

styles.css

319 ms

style.css

311 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 80% of them (63 requests) were addressed to the original Optilightwindows.co.uk, 14% (11 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Optilightwindows.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 89.3 kB (13%)

Content Size

690.5 kB

After Optimization

601.2 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Optilightwindows.co.uk main page is 690.5 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. 55% of websites need less resources to load. Images take 542.5 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 66.9 kB

  • Original 81.9 kB
  • After minification 79.4 kB
  • After compression 15.0 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 66.9 kB or 82% of the original size.

Image Optimization

-4%

Potential reduce by 22.4 kB

  • Original 542.5 kB
  • After minification 520.0 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. Opti Light Windows images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 17 B

  • Original 66.2 kB
  • After minification 66.2 kB
  • After compression 66.2 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 47 (71%)

Requests Now

66

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opti Light Windows. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

optilightwindows.co.uk

optilightwindows.co.uk

398 ms

css

css

44 ms

style.min.css

style.min.css

362 ms

styles.css

styles.css

319 ms

style.css

style.css

311 ms

font-awesome.min.css

font-awesome.min.css

306 ms

style.min.css

style.min.css

326 ms

style.css

style.css

321 ms

stylesheet.min.css

stylesheet.min.css

772 ms

print.css

print.css

596 ms

style_dynamic.css

style_dynamic.css

592 ms

responsive.min.css

responsive.min.css

604 ms

style_dynamic_responsive.css

style_dynamic_responsive.css

610 ms

js_composer.min.css

js_composer.min.css

807 ms

custom_css.css

custom_css.css

880 ms

front.min.css

front.min.css

872 ms

dynamic-mobmenu.css

dynamic-mobmenu.css

881 ms

css

css

38 ms

style.css

style.css

883 ms

mobmenu-icons.css

mobmenu-icons.css

1055 ms

mobmenu.css

mobmenu.css

1084 ms

jquery.min.js

jquery.min.js

1250 ms

jquery-migrate.min.js

jquery-migrate.min.js

1153 ms

front.min.js

front.min.js

1162 ms

mobmenu.js

mobmenu.js

1169 ms

js

js

78 ms

email-decode.min.js

email-decode.min.js

1055 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

1342 ms

wp-polyfill.min.js

wp-polyfill.min.js

1362 ms

index.js

index.js

1427 ms

scroll-to-anchor.min.js

scroll-to-anchor.min.js

1439 ms

qode-like.min.js

qode-like.min.js

1441 ms

plugins.js

plugins.js

1804 ms

jquery.carouFredSel-6.2.1.min.js

jquery.carouFredSel-6.2.1.min.js

1699 ms

lemmon-slider.min.js

lemmon-slider.min.js

1640 ms

jquery.fullPage.min.js

jquery.fullPage.min.js

1705 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

1728 ms

jquery.touchSwipe.min.js

jquery.touchSwipe.min.js

1720 ms

isotope.pkgd.min.js

isotope.pkgd.min.js

1924 ms

js

js

75 ms

TweenLite.min.js

TweenLite.min.js

1978 ms

ScrollToPlugin.min.js

ScrollToPlugin.min.js

1682 ms

smoothPageScroll.min.js

smoothPageScroll.min.js

1695 ms

default_dynamic.js

default_dynamic.js

1693 ms

default.min.js

default.min.js

1863 ms

custom_js.js

custom_js.js

1879 ms

ajax.min.js

ajax.min.js

2099 ms

js_composer_front.min.js

js_composer_front.min.js

1672 ms

style.css

style.css

1403 ms

logo_texy.png

logo_texy.png

639 ms

brightsky.jpg

brightsky.jpg

639 ms

Optilight-roof-windows-available-in-UK-from-Sunlux-Ltd.png

Optilight-roof-windows-available-in-UK-from-Sunlux-Ltd.png

643 ms

OPTILIGHT-Brand-Logo-1.jpg

OPTILIGHT-Brand-Logo-1.jpg

639 ms

Optilook-brand-logo-1.jpg

Optilook-brand-logo-1.jpg

130 ms

Optistep-brand-logo-1.jpg

Optistep-brand-logo-1.jpg

637 ms

optilight-55-x-78cm-centre-pivot-roof-window-3.jpg

optilight-55-x-78cm-centre-pivot-roof-window-3.jpg

640 ms

pictogram_1.jpg

pictogram_1.jpg

885 ms

pictogram_2.jpg

pictogram_2.jpg

902 ms

pictogram_3.jpg

pictogram_3.jpg

891 ms

pictogram_5.jpg

pictogram_5.jpg

901 ms

pictogram_6.jpg

pictogram_6.jpg

881 ms

pictogram_7.jpg

pictogram_7.jpg

900 ms

optilight-55-x-78cm-centre-pivot-roof-window-2.jpg

optilight-55-x-78cm-centre-pivot-roof-window-2.jpg

1253 ms

optilook-46cm-x-55cm-skylight-roof-access-exit-with-integrated-flashing-2-1.jpg

optilook-46cm-x-55cm-skylight-roof-access-exit-with-integrated-flashing-2-1.jpg

1419 ms

slate-flashing-tl-55-x-78cm-for-optilight-1.jpg

slate-flashing-tl-55-x-78cm-for-optilight-1.jpg

1265 ms

optistep-ole-70cm-x-120cm-wooden-loft-ladder-hatch-h-up-to-280cm-1.jpg

optistep-ole-70cm-x-120cm-wooden-loft-ladder-hatch-h-up-to-280cm-1.jpg

1356 ms

js

js

84 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9gTuoxDkg.woff

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9gTuoxDkg.woff

503 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9szuoxDkg.woff

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9szuoxDkg.woff

505 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r93zuoxDkg.woff

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r93zuoxDkg.woff

506 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9XzyoxDkg.woff

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9XzyoxDkg.woff

509 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9ZjyoxDkg.woff

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9ZjyoxDkg.woff

510 ms

NaPDcZTIAOhVxoMyOr9n_E7ffBzCGIVzZQ.woff

NaPDcZTIAOhVxoMyOr9n_E7ffBzCGIVzZQ.woff

508 ms

NaPDcZTIAOhVxoMyOr9n_E7ffHjDGIVzZQ.woff

NaPDcZTIAOhVxoMyOr9n_E7ffHjDGIVzZQ.woff

513 ms

NaPDcZTIAOhVxoMyOr9n_E7ffEDBGIVzZQ.woff

NaPDcZTIAOhVxoMyOr9n_E7ffEDBGIVzZQ.woff

506 ms

NaPecZTIAOhVxoMyOr9n_E7fdM3mCw.woff

NaPecZTIAOhVxoMyOr9n_E7fdM3mCw.woff

506 ms

NaPDcZTIAOhVxoMyOr9n_E7ffGjEGIVzZQ.woff

NaPDcZTIAOhVxoMyOr9n_E7ffGjEGIVzZQ.woff

510 ms

NaPDcZTIAOhVxoMyOr9n_E7ffAzHGIVzZQ.woff

NaPDcZTIAOhVxoMyOr9n_E7ffAzHGIVzZQ.woff

511 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1268 ms

Accessibility Review

optilightwindows.co.uk accessibility score

88

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

optilightwindows.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

optilightwindows.co.uk SEO score

100

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

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 Optilightwindows.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 Optilightwindows.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

optilightwindows.co.uk

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