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refcom.org.uk screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

refcom.org.uk

REFCOM | The UK's Market Leading F-Gas Certification Scheme

Page Load Speed

5.4 sec in total

First Response

83 ms

Resources Loaded

4.3 sec

Page Rendered

1 sec

refcom.org.uk screenshot

About Website

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

The UK's market leading F-Gas registration scheme, appointed by DEFRA. Or register for Refcom Elite. Visit REFCOM for technical help and advice.

Visit refcom.org.uk

Key Findings

We analyzed Refcom.org.uk page load time and found that the first response time was 83 ms and then it took 5.3 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

refcom.org.uk performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value14.7 s

0/100

25%

SI (Speed Index)

Value6.3 s

41/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

refcom.org.uk

83 ms

www.refcom.org.uk

903 ms

css

134 ms

owl.carousel.css

133 ms

owl.theme.css

386 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 69% of them (53 requests) were addressed to the original Refcom.org.uk, 6% (5 requests) were made to Use.typekit.net and 3% (2 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Js-eu1.hs-banner.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 199.0 kB (7%)

Content Size

2.7 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Refcom.org.uk main page is 2.7 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. 65% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 50.9 kB

  • Original 62.6 kB
  • After minification 46.2 kB
  • After compression 11.7 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. This page needs HTML code to be minified as it can gain 16.4 kB, which is 26% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 50.9 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 123.9 kB

  • Original 2.4 MB
  • After minification 2.3 MB

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. REFCOM images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 18.3 kB

  • Original 170.9 kB
  • After minification 170.2 kB
  • After compression 152.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 18.3 kB or 11% of the original size.

CSS Optimization

-14%

Potential reduce by 5.9 kB

  • Original 41.5 kB
  • After minification 41.0 kB
  • After compression 35.5 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. Refcom.org.uk needs all CSS files to be minified and compressed as it can save up to 5.9 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (39%)

Requests Now

69

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of REFCOM. 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 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

refcom.org.uk

refcom.org.uk

83 ms

www.refcom.org.uk

www.refcom.org.uk

903 ms

css

css

134 ms

owl.carousel.css

owl.carousel.css

133 ms

owl.theme.css

owl.theme.css

386 ms

jquery.mmenu.all.css

jquery.mmenu.all.css

388 ms

main.css

main.css

525 ms

new-homepage.css

new-homepage.css

485 ms

iua0evi.js

iua0evi.js

366 ms

modernizr-2.8.3-respond-1.4.2.min.js

modernizr-2.8.3-respond-1.4.2.min.js

443 ms

angular.min.js

angular.min.js

365 ms

angular-resource.min.js

angular-resource.min.js

364 ms

besa.css

besa.css

446 ms

index.js

index.js

721 ms

jquery.min.js

jquery.min.js

364 ms

bootstrap.min.js

bootstrap.min.js

462 ms

headhesive.min.js

headhesive.min.js

461 ms

jquery.mmenu.all.min.js

jquery.mmenu.all.min.js

468 ms

main.js

main.js

729 ms

owl.carousel.min.js

owl.carousel.min.js

729 ms

companySearch.js

companySearch.js

749 ms

dirPagination.js

dirPagination.js

741 ms

resources.js

resources.js

749 ms

jquery.matchHeight-min.js

jquery.matchHeight-min.js

346 ms

25215107.js

25215107.js

740 ms

ai.2.min.js

ai.2.min.js

116 ms

refcom-logo-r.png

refcom-logo-r.png

184 ms

company-search-trigger-2.jpg

company-search-trigger-2.jpg

223 ms

member-login-2.png

member-login-2.png

184 ms

mobile-search-trigger.png

mobile-search-trigger.png

184 ms

mobile-member-login.png

mobile-member-login.png

184 ms

button-icon-right.png

button-icon-right.png

183 ms

refcom-chevron-down.png

refcom-chevron-down.png

187 ms

icon-checklist.png

icon-checklist.png

220 ms

icon-rossette.png

icon-rossette.png

187 ms

refcom-icon-small.png

refcom-icon-small.png

186 ms

icon-van.png

icon-van.png

218 ms

icon-laptop.png

icon-laptop.png

484 ms

icon-umbrella.png

icon-umbrella.png

482 ms

icon-telephone.png

icon-telephone.png

483 ms

icon-book.png

icon-book.png

482 ms

icon-scales.png

icon-scales.png

481 ms

refcom-cta-2b.png

refcom-cta-2b.png

481 ms

flammables-icon.jpg

flammables-icon.jpg

684 ms

remain-compliant.png

remain-compliant.png

776 ms

twitter-icon.png

twitter-icon.png

683 ms

acr-awards-winners-2020.png

acr-awards-winners-2020.png

948 ms

untitled-1.jpg

untitled-1.jpg

697 ms

refcom-yellow.png

refcom-yellow.png

679 ms

button-arrow-blue.png

button-arrow-blue.png

681 ms

title.png

title.png

698 ms

besa.png

besa.png

697 ms

besa-pub.png

besa-pub.png

699 ms

welplan.png

welplan.png

687 ms

sfg-20.png

sfg-20.png

688 ms

besca.png

besca.png

688 ms

skillcard.png

skillcard.png

758 ms

iso.png

iso.png

747 ms

gtm.js

gtm.js

139 ms

search-icon.png

search-icon.png

709 ms

refcom-web-banner.png

refcom-web-banner.png

805 ms

button-arrow.png

button-arrow.png

782 ms

blue-banner.png

blue-banner.png

1435 ms

KFOlCnqEu92Fr1MmSU5fBBc-.woff

KFOlCnqEu92Fr1MmSU5fBBc-.woff

45 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

52 ms

analytics.js

analytics.js

274 ms

collect

collect

99 ms

25215107.js

25215107.js

1639 ms

collectedforms.js

collectedforms.js

1528 ms

25215107.js

25215107.js

1608 ms

d

d

84 ms

d

d

102 ms

d

d

101 ms

d

d

102 ms

collect

collect

130 ms

p.gif

p.gif

58 ms

ga-audiences

ga-audiences

41 ms

Accessibility Review

refcom.org.uk accessibility score

79

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

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

refcom.org.uk best practices score

67

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

refcom.org.uk SEO score

73

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

High

Image elements do not have [alt] attributes

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Refcom.org.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Refcom.org.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

refcom.org.uk

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