Tools & Wizards About Us

Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 87

    SEO

    Google-friendlier than
    65% of websites

jacomb.net

LED Lights, EV Charging Stations

Page Load Speed

1 sec in total

First Response

123 ms

Resources Loaded

655 ms

Page Rendered

251 ms

About Website

Welcome to jacomb.net homepage info - get ready to check Jacomb best content right away, or after learning these important things about jacomb.net

JACOMB sells Traditional Lighting, LED and Induction Lighting, EV Charging Stations, and Intelligent Lighting Systems and Wireless Lighting Control Systems.

Visit jacomb.net

Key Findings

We analyzed Jacomb.net page load time and found that the first response time was 123 ms and then it took 906 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

jacomb.net performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

48/100

25%

SI (Speed Index)

Value2.4 s

98/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.357

30/100

15%

TTI (Time to Interactive)

Value3.0 s

95/100

10%

Network Requests Diagram

jacomb.net

123 ms

jacomb.net

172 ms

bootstrap.min.css

138 ms

jumbotron.css

104 ms

jacomb2.css

110 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 77% of them (23 requests) were addressed to the original Jacomb.net, 7% (2 requests) were made to Ssl.google-analytics.com and 3% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (226 ms) belongs to the original domain Jacomb.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 140.2 kB (22%)

Content Size

630.2 kB

After Optimization

490.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jacomb.net main page is 630.2 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. 25% of websites need less resources to load. Images take 403.3 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 10.6 kB

  • Original 15.6 kB
  • After minification 13.5 kB
  • After compression 5.0 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 2.1 kB, which is 14% 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 10.6 kB or 68% of the original size.

Image Optimization

-0%

Potential reduce by 1.1 kB

  • Original 403.3 kB
  • After minification 402.2 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. Jacomb images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 26.4 kB

  • Original 89.0 kB
  • After minification 89.0 kB
  • After compression 62.6 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 26.4 kB or 30% of the original size.

CSS Optimization

-83%

Potential reduce by 102.0 kB

  • Original 122.3 kB
  • After minification 121.3 kB
  • After compression 20.3 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. Jacomb.net needs all CSS files to be minified and compressed as it can save up to 102.0 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (28%)

Requests Now

25

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jacomb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

jacomb.net accessibility score

85

Accessibility Issues

ARIA

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.

Impact

Issue

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Best Practices

jacomb.net best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

jacomb.net SEO score

87

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

Links do not have descriptive text

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 Jacomb.net 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 Jacomb.net 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 description is not detected on the main page of Jacomb. 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: