Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

retrolux.com

Audit, Design and Propose Lighting Energy Software | Retrolux

Page Load Speed

2.5 sec in total

First Response

68 ms

Resources Loaded

2.3 sec

Page Rendered

60 ms

retrolux.com screenshot

About Website

Visit retrolux.com now to see the best up-to-date Retrolux content for United States and also check out these interesting facts you probably never knew about retrolux.com

The fastest-growing energy audit, design, cost estimating, and proposal software for lighting retrofit contractors and ESCOs. Conduct lighting audits and generate proposals with cloud software.

Visit retrolux.com

Key Findings

We analyzed Retrolux.com page load time and found that the first response time was 68 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

retrolux.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value1,170 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.286

42/100

15%

TTI (Time to Interactive)

Value16.5 s

5/100

10%

Network Requests Diagram

www.retrolux.com

68 ms

minified.js

36 ms

focus-within-polyfill.js

67 ms

polyfill.min.js

998 ms

6256718.js

66 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Retrolux.com, 35% (23 requests) were made to Static.parastorage.com and 29% (19 requests) were made to Static.wixstatic.com. The less responsive or slowest element that took the longest time to load (998 ms) relates to the external source Polyfill-fastly.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 680.1 kB (56%)

Content Size

1.2 MB

After Optimization

542.4 kB

In fact, the total size of Retrolux.com main page is 1.2 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. HTML takes 822.7 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 660.8 kB

  • Original 822.7 kB
  • After minification 820.8 kB
  • After compression 161.9 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. 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 660.8 kB or 80% of the original size.

Image Optimization

-8%

Potential reduce by 8.5 kB

  • Original 105.8 kB
  • After minification 97.4 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. Retrolux images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 10.8 kB

  • Original 294.0 kB
  • After minification 294.0 kB
  • After compression 283.2 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.

Requests Breakdown

Number of requests can be reduced by 16 (40%)

Requests Now

40

After Optimization

24

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Retrolux. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

retrolux.com accessibility score

96

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

Best Practices

retrolux.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

retrolux.com SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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