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Report Summary

About Website

Click here to check amazing Vertase FLI content. Otherwise, check out these important facts you probably never knew about vertasefli.co.uk

Contaminated Land, Brownfield and Environmental Contracting Specialists Vertase delivers complete remediation solutions & development-ready platforms for development, house building, manufacturing, an...

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name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value760 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

vertasefli.co.uk

52 ms

style.min.css

10 ms

theme.min.css

13 ms

header-footer.min.css

15 ms

frontend-lite.min.css

32 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 75% of them (51 requests) were addressed to the original Vertasefli.co.uk, 22% (15 requests) were made to Fonts.gstatic.com and 1% (1 request) 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 Vertasefli.co.uk.

Content Size

727.7 kB

After Optimization

561.6 kB

In fact, the total size of Vertasefli.co.uk main page is 727.7 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. 70% of websites need less resources to load. Images take 355.0 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 82.5 kB

Original 100.8 kB
After minification 97.4 kB
After compression 18.3 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 82.5 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 5.1 kB

Original 355.0 kB
After minification 349.9 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. Vertase FLI images are well optimized though.

JavaScript Optimization

-34%

Potential reduce by 60.7 kB

Original 176.9 kB
After minification 176.9 kB
After compression 116.3 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 60.7 kB or 34% of the original size.

CSS Optimization

-19%

Potential reduce by 17.8 kB

Original 95.0 kB
After minification 95.0 kB
After compression 77.2 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. Vertasefli.co.uk needs all CSS files to be minified and compressed as it can save up to 17.8 kB or 19% of the original size.

Requests Now

After Optimization

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vertase FLI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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/).

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 Vertasefli.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 Vertasefli.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

vertasefli.co.uk

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Home - Vertase FLI

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)