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root-4.com screenshot

Report Summary

  • 86

    Performance

    Renders faster than
    89% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

root-4.com

Root4 - Advanced Engineering Research, Design & Analysis

Page Load Speed

1.5 sec in total

First Response

262 ms

Resources Loaded

1.1 sec

Page Rendered

74 ms

root-4.com screenshot

About Website

Welcome to root-4.com homepage info - get ready to check Root4 best content right away, or after learning these important things about root-4.com

Root4 is a dynamic engineering consultancy - Providing advanced research, design, analysis & test services to a range of technological sectors.

Visit root-4.com

Key Findings

We analyzed Root-4.com page load time and found that the first response time was 262 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

root-4.com performance score

86

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

100/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

43/100

25%

SI (Speed Index)

Value1.6 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.3 s

100/100

10%

Network Requests Diagram

root-4.com

262 ms

Root4.css

116 ms

ga.js

7 ms

20px_VerticalGap.gif

127 ms

Root4%20Logo.jpg

373 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 91% of them (20 requests) were addressed to the original Root-4.com, 9% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (624 ms) belongs to the original domain Root-4.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 11.9 kB (18%)

Content Size

67.6 kB

After Optimization

55.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Root-4.com main page is 67.6 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. 15% of websites need less resources to load. Images take 35.4 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 9.5 kB

  • Original 12.9 kB
  • After minification 12.0 kB
  • After compression 3.4 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 9.5 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 761 B

  • Original 35.4 kB
  • After minification 34.6 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. Root4 images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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

-79%

Potential reduce by 1.7 kB

  • Original 2.1 kB
  • After minification 1.7 kB
  • After compression 438 B

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. Root-4.com needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (33%)

Requests Now

21

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Root4. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

root-4.com

root-4.com

262 ms

Root4.css

Root4.css

116 ms

ga.js

ga.js

7 ms

20px_VerticalGap.gif

20px_VerticalGap.gif

127 ms

Root4%20Logo.jpg

Root4%20Logo.jpg

373 ms

Navbar_Left.gif

Navbar_Left.gif

240 ms

Navbar_Centre.gif

Navbar_Centre.gif

241 ms

Navbar_Division.gif

Navbar_Division.gif

242 ms

Navbar_Right.gif

Navbar_Right.gif

236 ms

Research.gif

Research.gif

265 ms

10px_VerticalGap.gif

10px_VerticalGap.gif

353 ms

Design.gif

Design.gif

355 ms

Analysis.gif

Analysis.gif

352 ms

Contact.gif

Contact.gif

357 ms

Advanced-Engineering-Servic.gif

Advanced-Engineering-Servic.gif

624 ms

Bottom_Bar_Left.gif

Bottom_Bar_Left.gif

463 ms

Bottom_Bar_Right.gif

Bottom_Bar_Right.gif

595 ms

__utm.gif

__utm.gif

11 ms

Research_Rollover.gif

Research_Rollover.gif

127 ms

Design_Rollover.gif

Design_Rollover.gif

133 ms

Analysis_Rollover.gif

Analysis_Rollover.gif

134 ms

Contact_Rollover.gif

Contact_Rollover.gif

126 ms

Accessibility Review

root-4.com accessibility score

61

Accessibility Issues

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

<object> elements do not have alternate text

Best Practices

root-4.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

root-4.com SEO score

58

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

Image elements do not have [alt] attributes

High

Document uses plugins

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Root-4.com 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 Root-4.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

root-4.com

Open Graph description is not detected on the main page of Root4. 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: