Access 4volts.com. 4Volts-Engineering | Electronic Design Consultants, Melbourne, Vic

Report Summary

About Website

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

4Volts, Electronic Engineering Design Consultants, in Melbourne, Vic, for efficient product development

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name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value5.2 s

60/100

10%

TBT (Total Blocking Time)

Value500 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.3 s

24/100

10%

4volts.com

493 ms

site_global.css

158 ms

index.css

295 ms

js

53 ms

require.js

62 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 80% of them (77 requests) were addressed to the original 4volts.com, 6% (6 requests) were made to Apis.google.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (514 ms) belongs to the original domain 4volts.com.

Content Size

1.3 MB

After Optimization

863.5 kB

In fact, the total size of 4volts.com main page is 1.3 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. 60% of websites need less resources to load. Javascripts take 696.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 102.6 kB

Original 122.9 kB
After minification 92.2 kB
After compression 20.2 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. This page needs HTML code to be minified as it can gain 30.6 kB, which is 25% 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 102.6 kB or 84% of the original size.

Image Optimization

-16%

Potential reduce by 62.4 kB

Original 388.9 kB
After minification 326.5 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. Obviously, 4Volts needs image optimization as it can save up to 62.4 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-27%

Potential reduce by 188.5 kB

Original 696.7 kB
After minification 695.6 kB
After compression 508.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 188.5 kB or 27% of the original size.

CSS Optimization

-86%

Potential reduce by 52.6 kB

Original 61.2 kB
After minification 58.5 kB
After compression 8.6 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. 4volts.com needs all CSS files to be minified and compressed as it can save up to 52.6 kB or 86% of the original size.

Requests Now

After Optimization

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 4Volts. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

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 4volts.com 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 4volts.com 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

4volts.com

Open Graph data is detected on the main page of 4Volts. 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

4Volts-Engineering | Electronic Design Consultants, Melbourne, Vic

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)