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vent.co.uk screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

vent.co.uk

Natural and Smoke Ventilation Systems | Vent Engineering

Page Load Speed

12.5 sec in total

First Response

4.2 sec

Resources Loaded

7.8 sec

Page Rendered

571 ms

vent.co.uk screenshot

About Website

Welcome to vent.co.uk homepage info - get ready to check Vent best content right away, or after learning these important things about vent.co.uk

About Vent Engineering We design, build and install smoke ventilation systems We are specialists in natural and smoke ventilation systems and have been manufacturing, supplying, installing and commiss...

Visit vent.co.uk

Key Findings

We analyzed Vent.co.uk page load time and found that the first response time was 4.2 sec and then it took 8.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

vent.co.uk performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value17.2 s

0/100

25%

SI (Speed Index)

Value17.6 s

0/100

10%

TBT (Total Blocking Time)

Value5,100 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.025

100/100

15%

TTI (Time to Interactive)

Value22.3 s

1/100

10%

Network Requests Diagram

www.vent.co.uk

4204 ms

dnd-upload-cf7.css

78 ms

styles.css

155 ms

front.min.css

227 ms

wp-ulike.min.css

229 ms

Our browser made a total of 148 requests to load all elements on the main page. We found that 62% of them (92 requests) were addressed to the original Vent.co.uk, 30% (44 requests) were made to Fonts.gstatic.com and 2% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (4.2 sec) belongs to the original domain Vent.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (46%)

Content Size

2.6 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vent.co.uk main page is 2.6 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. CSS take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 176.3 kB

  • Original 206.6 kB
  • After minification 189.3 kB
  • After compression 30.4 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 176.3 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 3.1 kB

  • Original 630.1 kB
  • After minification 627.0 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. Vent images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 113.4 kB

  • Original 676.8 kB
  • After minification 676.4 kB
  • After compression 563.4 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 113.4 kB or 17% of the original size.

CSS Optimization

-81%

Potential reduce by 908.2 kB

  • Original 1.1 MB
  • After minification 1.0 MB
  • After compression 215.2 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. Vent.co.uk needs all CSS files to be minified and compressed as it can save up to 908.2 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 87 (87%)

Requests Now

100

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vent. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 51 to 1 for JavaScripts and from 38 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.vent.co.uk

www.vent.co.uk

4204 ms

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78 ms

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155 ms

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229 ms

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307 ms

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464 ms

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Accessibility Review

vent.co.uk accessibility score

86

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

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

Links do not have a discernible name

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

vent.co.uk best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

vent.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 Vent.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 Vent.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

vent.co.uk

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