Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

diamondsecurityglass.co.uk

Security Glass & Safety Glass | Leading U.K. Manufacturer

Page Load Speed

7.3 sec in total

First Response

689 ms

Resources Loaded

6.5 sec

Page Rendered

139 ms

diamondsecurityglass.co.uk screenshot

About Website

Welcome to diamondsecurityglass.co.uk homepage info - get ready to check Diamond Security Glass best content right away, or after learning these important things about diamondsecurityglass.co.uk

Diamond Glass are a leading U.K. manufacturer of safety & security Glass, catering to all aspects of the trade for more than a decade.

Visit diamondsecurityglass.co.uk

Key Findings

We analyzed Diamondsecurityglass.co.uk page load time and found that the first response time was 689 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

diamondsecurityglass.co.uk performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value18.4 s

0/100

10%

TBT (Total Blocking Time)

Value500 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0.046

99/100

15%

TTI (Time to Interactive)

Value15.2 s

7/100

10%

Network Requests Diagram

www.diamondsecurityglass.co.uk

689 ms

www.diamondsecurityglass.co.uk

442 ms

jquery.fancybox.css

578 ms

skeleton.css

348 ms

style.css

351 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 92% of them (54 requests) were addressed to the original Diamondsecurityglass.co.uk, 3% (2 requests) were made to W.sharethis.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Diamondsecurityglass.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 61.3 kB (14%)

Content Size

448.5 kB

After Optimization

387.3 kB

In fact, the total size of Diamondsecurityglass.co.uk main page is 448.5 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. 40% of websites need less resources to load. Images take 239.2 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 26.1 kB

  • Original 33.3 kB
  • After minification 31.7 kB
  • After compression 7.2 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 26.1 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 4.6 kB

  • Original 239.2 kB
  • After minification 234.6 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. Diamond Security Glass images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 21.5 kB

  • Original 152.1 kB
  • After minification 151.1 kB
  • After compression 130.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 21.5 kB or 14% of the original size.

CSS Optimization

-38%

Potential reduce by 9.1 kB

  • Original 24.0 kB
  • After minification 24.0 kB
  • After compression 14.9 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. Diamondsecurityglass.co.uk needs all CSS files to be minified and compressed as it can save up to 9.1 kB or 38% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (49%)

Requests Now

55

After Optimization

28

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Diamond Security Glass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

diamondsecurityglass.co.uk accessibility score

77

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.

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

diamondsecurityglass.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

SEO Factors

diamondsecurityglass.co.uk SEO score

99

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 Diamondsecurityglass.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 Diamondsecurityglass.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

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