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doubleglazing.com screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

doubleglazing.com

Double Glazing | Replacement Windows | Find a Local Supplier

Page Load Speed

4 sec in total

First Response

747 ms

Resources Loaded

3 sec

Page Rendered

222 ms

doubleglazing.com screenshot

About Website

Welcome to doubleglazing.com homepage info - get ready to check Double Glazing best content right away, or after learning these important things about doubleglazing.com

Which? reports local double glazing installers offer the best prices on replacement windows. Get up to four double glazing quotes from local suppliers

Visit doubleglazing.com

Key Findings

We analyzed Doubleglazing.com page load time and found that the first response time was 747 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

doubleglazing.com performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

43/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value2,710 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value15.1 s

7/100

10%

Network Requests Diagram

www.doubleglazing.com

747 ms

hb_app.js

1 ms

style.min.css

250 ms

style.css

252 ms

style.min.css

334 ms

Our browser made a total of 144 requests to load all elements on the main page. We found that 86% of them (124 requests) were addressed to the original Doubleglazing.com, 3% (5 requests) were made to Fonts.gstatic.com and 3% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (747 ms) belongs to the original domain Doubleglazing.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 799.1 kB (50%)

Content Size

1.6 MB

After Optimization

805.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Doubleglazing.com main page is 1.6 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. 70% of websites need less resources to load. HTML takes 906.3 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 794.1 kB

  • Original 906.3 kB
  • After minification 904.8 kB
  • After compression 112.2 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 794.1 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 145 B

  • Original 100.3 kB
  • After minification 100.1 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. Double Glazing images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 3.3 kB

  • Original 542.3 kB
  • After minification 542.3 kB
  • After compression 539.0 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

-3%

Potential reduce by 1.5 kB

  • Original 56.1 kB
  • After minification 54.7 kB
  • After compression 54.6 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. Doubleglazing.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 119 (89%)

Requests Now

133

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 133 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Double Glazing. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 116 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.doubleglazing.com

www.doubleglazing.com

747 ms

hb_app.js

hb_app.js

1 ms

style.min.css

style.min.css

250 ms

style.css

style.css

252 ms

style.min.css

style.min.css

334 ms

style.css

style.css

255 ms

jquery.min.js

jquery.min.js

342 ms

jquery-migrate.min.js

jquery-migrate.min.js

257 ms

adsbygoogle.js

adsbygoogle.js

202 ms

adbutler_hb_init.js

adbutler_hb_init.js

171 ms

adbutler_hb_final.js

adbutler_hb_final.js

173 ms

index.js

index.js

252 ms

index.js

index.js

251 ms

isotope.js

isotope.js

326 ms

jquery.infinitescroll.js

jquery.infinitescroll.js

326 ms

avada-faqs.js

avada-faqs.js

325 ms

modernizr.js

modernizr.js

327 ms

jquery.fitvids.js

jquery.fitvids.js

327 ms

fusion-video-general.js

fusion-video-general.js

328 ms

jquery.ilightbox.js

jquery.ilightbox.js

417 ms

jquery.mousewheel.js

jquery.mousewheel.js

393 ms

fusion-lightbox.js

fusion-lightbox.js

394 ms

imagesLoaded.js

imagesLoaded.js

395 ms

packery.js

packery.js

395 ms

avada-portfolio.js

avada-portfolio.js

396 ms

Chart.js

Chart.js

499 ms

fusion-chart.js

fusion-chart.js

424 ms

fusion-column-bg-image.js

fusion-column-bg-image.js

434 ms

cssua.js

cssua.js

434 ms

jquery.waypoints.js

jquery.waypoints.js

450 ms

fusion-waypoints.js

fusion-waypoints.js

498 ms

fusion-animations.js

fusion-animations.js

531 ms

fusion-equal-heights.js

fusion-equal-heights.js

533 ms

fusion-column.js

fusion-column.js

531 ms

jquery.fade.js

jquery.fade.js

533 ms

jquery.requestAnimationFrame.js

jquery.requestAnimationFrame.js

602 ms

fusion-parallax.js

fusion-parallax.js

602 ms

fusion-video-bg.js

fusion-video-bg.js

604 ms

api.js

api.js

43 ms

fusion-container.js

fusion-container.js

603 ms

fusion-content-boxes.js

fusion-content-boxes.js

520 ms

jquery.countdown.js

jquery.countdown.js

549 ms

fusion-countdown.js

fusion-countdown.js

574 ms

jquery.countTo.js

jquery.countTo.js

574 ms

jquery.appear.js

jquery.appear.js

507 ms

fusion-counters-box.js

fusion-counters-box.js

499 ms

jquery.easyPieChart.js

jquery.easyPieChart.js

504 ms

fusion-counters-circle.js

fusion-counters-circle.js

444 ms

fusion-flip-boxes.js

fusion-flip-boxes.js

502 ms

show_ads_impl.js

show_ads_impl.js

280 ms

fusion-gallery.js

fusion-gallery.js

432 ms

jquery.fusion_maps.js

jquery.fusion_maps.js

436 ms

fusion-google-map.js

fusion-google-map.js

443 ms

jquery.event.move.js

jquery.event.move.js

441 ms

fusion-image-before-after.js

fusion-image-before-after.js

453 ms

bootstrap.modal.js

bootstrap.modal.js

510 ms

fusion-modal.js

fusion-modal.js

445 ms

fusion-progress.js

fusion-progress.js

450 ms

fusion-recent-posts.js

fusion-recent-posts.js

457 ms

fusion-syntax-highlighter.js

fusion-syntax-highlighter.js

456 ms

bootstrap.transition.js

bootstrap.transition.js

468 ms

bootstrap.tab.js

bootstrap.tab.js

509 ms

KFOOCniXp96a4Tc2DaTeuDAoKsE617JFc49knOIYdjTYkqUcKWmT.ttf

KFOOCniXp96a4Tc2DaTeuDAoKsE617JFc49knOIYdjTYkqUcKWmT.ttf

17 ms

KFOOCniXp96a4Tc2DaTeuDAoKsE617JFc49knOIYdjTYdaIcKWmT.ttf

KFOOCniXp96a4Tc2DaTeuDAoKsE617JFc49knOIYdjTYdaIcKWmT.ttf

26 ms

fusion-tabs.js

fusion-tabs.js

496 ms

jquery.cycle.js

jquery.cycle.js

504 ms

fusion-testimonials.js

fusion-testimonials.js

499 ms

jquery.textillate.js

jquery.textillate.js

500 ms

fusion-title.js

fusion-title.js

500 ms

bootstrap.collapse.js

bootstrap.collapse.js

500 ms

fusion-toggles.js

fusion-toggles.js

469 ms

vimeoPlayer.js

vimeoPlayer.js

481 ms

fusion-video.js

fusion-video.js

482 ms

jquery.hoverintent.js

jquery.hoverintent.js

487 ms

fusion-vertical-menu-widget.js

fusion-vertical-menu-widget.js

496 ms

lazysizes.js

lazysizes.js

476 ms

bootstrap.tooltip.js

bootstrap.tooltip.js

476 ms

bootstrap.popover.js

bootstrap.popover.js

490 ms

jquery.carouFredSel.js

jquery.carouFredSel.js

491 ms

zrt_lookup.html

zrt_lookup.html

32 ms

ads

ads

82 ms

jquery.easing.js

jquery.easing.js

470 ms

jquery.flexslider.js

jquery.flexslider.js

485 ms

jquery.hoverflow.js

jquery.hoverflow.js

494 ms

jquery.placeholder.js

jquery.placeholder.js

494 ms

jquery.touchSwipe.js

jquery.touchSwipe.js

504 ms

fusion-alert.js

fusion-alert.js

508 ms

fusion-carousel.js

fusion-carousel.js

509 ms

fusion-flexslider.js

fusion-flexslider.js

514 ms

fusion-popover.js

fusion-popover.js

490 ms

fusion-tooltip.js

fusion-tooltip.js

490 ms

fusion-sharing-box.js

fusion-sharing-box.js

504 ms

fusion-blog.js

fusion-blog.js

497 ms

fusion-button.js

fusion-button.js

507 ms

fusion-general-global.js

fusion-general-global.js

513 ms

fusion.js

fusion.js

487 ms

avada-header.js

avada-header.js

491 ms

avada-menu.js

avada-menu.js

505 ms

fusion-scroll-to-anchor.js

fusion-scroll-to-anchor.js

497 ms

fusion-responsive-typography.js

fusion-responsive-typography.js

507 ms

avada-skip-link-focus-fix.js

avada-skip-link-focus-fix.js

515 ms

bootstrap.scrollspy.js

bootstrap.scrollspy.js

506 ms

avada-comments.js

avada-comments.js

492 ms

avada-general-footer.js

avada-general-footer.js

500 ms

avada-quantity.js

avada-quantity.js

497 ms

avada-scrollspy.js

avada-scrollspy.js

508 ms

avada-select.js

avada-select.js

514 ms

avada-sidebars.js

avada-sidebars.js

493 ms

jquery.sticky-kit.js

jquery.sticky-kit.js

504 ms

avada-tabs-widget.js

avada-tabs-widget.js

498 ms

jquery.toTop.js

jquery.toTop.js

498 ms

avada-to-top.js

avada-to-top.js

508 ms

avada-drop-down.js

avada-drop-down.js

514 ms

avada-contact-form-7.js

avada-contact-form-7.js

493 ms

jquery.elasticslider.js

jquery.elasticslider.js

503 ms

avada-elastic-slider.js

avada-elastic-slider.js

499 ms

avada-fusion-slider.js

avada-fusion-slider.js

496 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

507 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

535 ms

wp-polyfill.min.js

wp-polyfill.min.js

498 ms

index.js

index.js

525 ms

icomoon.woff

icomoon.woff

521 ms

fa-solid-900.woff

fa-solid-900.woff

516 ms

fa-regular-400.woff

fa-regular-400.woff

579 ms

DGlogo-e1461321052449-1.png

DGlogo-e1461321052449-1.png

571 ms

600x1-300x200.jpg

600x1-300x200.jpg

539 ms

600x3-300x200.jpg

600x3-300x200.jpg

534 ms

600x5-300x200.jpg

600x5-300x200.jpg

529 ms

91454039-800-300x200.jpg

91454039-800-300x200.jpg

515 ms

brochure-img-300x237.png

brochure-img-300x237.png

523 ms

DGlogo-footer.png

DGlogo-footer.png

564 ms

recaptcha__en.js

recaptcha__en.js

19 ms

anchor

anchor

81 ms

styles__ltr.css

styles__ltr.css

17 ms

recaptcha__en.js

recaptcha__en.js

20 ms

rlkil7xobg44Oa_ZW0Q_XO43wWAZKPs0Vz9W5S05jd8.js

rlkil7xobg44Oa_ZW0Q_XO43wWAZKPs0Vz9W5S05jd8.js

42 ms

webworker.js

webworker.js

40 ms

logo_48.png

logo_48.png

24 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

5 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

19 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

24 ms

recaptcha__en.js

recaptcha__en.js

19 ms

DGlogoX2.png

DGlogoX2.png

94 ms

sodar

sodar

70 ms

Accessibility Review

doubleglazing.com accessibility score

96

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

doubleglazing.com best practices score

83

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

doubleglazing.com SEO score

93

Search Engine Optimization Advices

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 Doubleglazing.com 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 Doubleglazing.com 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

doubleglazing.com

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