Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

luminus.com

Luminus : Improving Life with Photons

Page Load Speed

6.5 sec in total

First Response

1.1 sec

Resources Loaded

5.2 sec

Page Rendered

188 ms

About Website

Click here to check amazing Luminus content for United States. Otherwise, check out these important facts you probably never knew about luminus.com

Luminus Devices develops and manufactures LED solutions for the global illumination market. We offer products for general illumination and specialty lighting applications.

Visit luminus.com

Key Findings

We analyzed Luminus.com page load time and found that the first response time was 1.1 sec and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

luminus.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value37.4 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value660 ms

45/100

30%

CLS (Cumulative Layout Shift)

Value0.345

32/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

www.luminus.com

1093 ms

js

56 ms

css

46 ms

bootstrap.css

886 ms

bootstrap-select.min.css

35 ms

Our browser made a total of 136 requests to load all elements on the main page. We found that 61% of them (83 requests) were addressed to the original Luminus.com, 24% (32 requests) were made to Download.luminus.com and 3% (4 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Luminus.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 8.2 MB (13%)

Content Size

64.5 MB

After Optimization

56.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Luminus.com main page is 64.5 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. Only a small number of websites need less resources to load. Images take 64.1 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 94.7 kB

  • Original 108.5 kB
  • After minification 84.4 kB
  • After compression 13.9 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 24.1 kB, which is 22% 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 94.7 kB or 87% of the original size.

Image Optimization

-13%

Potential reduce by 8.1 MB

  • Original 64.1 MB
  • After minification 56.0 MB

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, Luminus needs image optimization as it can save up to 8.1 MB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 1.1 kB

  • Original 185.7 kB
  • After minification 185.7 kB
  • After compression 184.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-84%

Potential reduce by 36.0 kB

  • Original 43.0 kB
  • After minification 30.5 kB
  • After compression 7.1 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. Luminus.com needs all CSS files to be minified and compressed as it can save up to 36.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (24%)

Requests Now

132

After Optimization

100

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 132 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Luminus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

luminus.com accessibility score

81

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.

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

Links do not have a discernible name

Best Practices

luminus.com best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

luminus.com SEO score

81

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Luminus.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 Luminus.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

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