Tools & Wizards About Us
retrolux.com screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

retrolux.com

Audit, Design and Propose Lighting Energy Software | Retrolux

Page Load Speed

2.2 sec in total

First Response

166 ms

Resources Loaded

1.9 sec

Page Rendered

201 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 166 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

retrolux.com performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

69/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value9.0 s

15/100

10%

TBT (Total Blocking Time)

Value2,630 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.57

12/100

15%

TTI (Time to Interactive)

Value19.5 s

3/100

10%

Network Requests Diagram

www.retrolux.com

166 ms

minified.js

143 ms

focus-within-polyfill.js

143 ms

polyfill.min.js

313 ms

bootstrap-features.dbbc2053.bundle.min.js

273 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Retrolux.com, 46% (30 requests) were made to Static.wixstatic.com and 37% (24 requests) were made to Static.parastorage.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 416.5 kB (49%)

Content Size

844.9 kB

After Optimization

428.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Retrolux.com main page is 844.9 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. 50% of websites need less resources to load. HTML takes 506.8 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 404.3 kB

  • Original 506.8 kB
  • After minification 505.0 kB
  • After compression 102.5 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 404.3 kB or 80% of the original size.

Image Optimization

-4%

Potential reduce by 12.1 kB

  • Original 294.4 kB
  • After minification 282.3 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

-0%

Potential reduce by 48 B

  • Original 43.7 kB
  • After minification 43.7 kB
  • After compression 43.7 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 15 (28%)

Requests Now

53

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 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 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.retrolux.com

www.retrolux.com

166 ms

minified.js

minified.js

143 ms

focus-within-polyfill.js

focus-within-polyfill.js

143 ms

polyfill.min.js

polyfill.min.js

313 ms

bootstrap-features.dbbc2053.bundle.min.js

bootstrap-features.dbbc2053.bundle.min.js

273 ms

main.c5638ec5.bundle.min.js

main.c5638ec5.bundle.min.js

274 ms

lodash.min.js

lodash.min.js

230 ms

react.production.min.js

react.production.min.js

273 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

270 ms

wix-perf-measure.bundle.min.js

wix-perf-measure.bundle.min.js

483 ms

react-dom.production.min.js

react-dom.production.min.js

483 ms

6256718.js

6256718.js

513 ms

staticCss.min.css

staticCss.min.css

468 ms

Retrolux%20Logo%20Horizontal%20Final.png

Retrolux%20Logo%20Horizontal%20Final.png

463 ms

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11062b_f93b6e73e10a4e0bb003360a906dcc9a~mv2_d_5605_3699_s_4_2.jpg

625 ms

3670e5_1e002000521d48bb98703ff5679dc633~mv2.jpg

3670e5_1e002000521d48bb98703ff5679dc633~mv2.jpg

625 ms

FastestCompanyBadge.png

FastestCompanyBadge.png

626 ms

engineer-holding-tablet-computer-with-gr.jpg

engineer-holding-tablet-computer-with-gr.jpg

624 ms

Retrolux-iMac-Solutions-2-Monitor-Mockup.jpg

Retrolux-iMac-Solutions-2-Monitor-Mockup.jpg

687 ms

Retrolux-Energy-Savings-Proposal.jpg

Retrolux-Energy-Savings-Proposal.jpg

687 ms

Retrolux%20iPhone%20Installation.jpg

Retrolux%20iPhone%20Installation.jpg

703 ms

Retrolux-iMac-Solutions-Mockup_edited_jp.jpg

Retrolux-iMac-Solutions-Mockup_edited_jp.jpg

747 ms

b401c4_f1563d53296f4fe6bb501a056a3b4803~mv2.jpg

b401c4_f1563d53296f4fe6bb501a056a3b4803~mv2.jpg

834 ms

Screen%20Shot%202021-09-28%20at%204_19_42%20PM.png

Screen%20Shot%202021-09-28%20at%204_19_42%20PM.png

730 ms

e82b13b56efa82188b21061e3b253992.jpg

e82b13b56efa82188b21061e3b253992.jpg

765 ms

83524445ca90408594501cacb2567307.jpg

83524445ca90408594501cacb2567307.jpg

703 ms

df81d0146a554f6c9a51a21ae7d95d4f.jpg

df81d0146a554f6c9a51a21ae7d95d4f.jpg

705 ms

035244_eac0cb69cd9842838188176a1cf524a6~mv2_d_5122_3415_s_4_2.jpg

035244_eac0cb69cd9842838188176a1cf524a6~mv2_d_5122_3415_s_4_2.jpg

705 ms

3670e5_60b3511bc0a640e39156cae66b405117~mv2.png

3670e5_60b3511bc0a640e39156cae66b405117~mv2.png

706 ms

b401c4_f7104b0dc0684014a251a07a80c06f86~mv2.jpg

b401c4_f7104b0dc0684014a251a07a80c06f86~mv2.jpg

905 ms

b401c4_f0614912f8064232b7e136bfadb22c7b~mv2.png

b401c4_f0614912f8064232b7e136bfadb22c7b~mv2.png

840 ms

b401c4_ef49bcc371434bc69c09e9bf26c32d21~mv2.jpg

b401c4_ef49bcc371434bc69c09e9bf26c32d21~mv2.jpg

831 ms

b401c4_edc131c0e0454c1ba111348252cc9b9d~mv2.png

b401c4_edc131c0e0454c1ba111348252cc9b9d~mv2.png

857 ms

b401c4_3a5fbfeece834e6184208a3eeff8f54e~mv2.jpg

b401c4_3a5fbfeece834e6184208a3eeff8f54e~mv2.jpg

861 ms

b401c4_3d7bb2d7cc9d487a885381db28c46e93~mv2.jpg

b401c4_3d7bb2d7cc9d487a885381db28c46e93~mv2.jpg

940 ms

b401c4_a50e3e6b90ee4f29a329c2f05ed3976d~mv2.png

b401c4_a50e3e6b90ee4f29a329c2f05ed3976d~mv2.png

939 ms

b401c4_73d25dadf9744f8584423efb5064ed68~mv2.png

b401c4_73d25dadf9744f8584423efb5064ed68~mv2.png

1016 ms

b401c4_80bb1b2ff0d84556a3540bccd1fab1da~mv2.png

b401c4_80bb1b2ff0d84556a3540bccd1fab1da~mv2.png

971 ms

b401c4_10d612a0aff04bdcb62459be5c35a1a1~mv2.jpg

b401c4_10d612a0aff04bdcb62459be5c35a1a1~mv2.jpg

1147 ms

b401c4_a7ff27514f73469ca981b2dcfe387bcb~mv2.png

b401c4_a7ff27514f73469ca981b2dcfe387bcb~mv2.png

1032 ms

b401c4_a03355f7b353432f9a6cafc1fa984b17~mv2.png

b401c4_a03355f7b353432f9a6cafc1fa984b17~mv2.png

1028 ms

Retrolux-Awards-Banner.jpg

Retrolux-Awards-Banner.jpg

1135 ms

logo-white.png

logo-white.png

1113 ms

thunderbolt

thunderbolt

683 ms

p0A1C4_gK5NzKtuGSwNurQ.woff

p0A1C4_gK5NzKtuGSwNurQ.woff

208 ms

h3r77AwDsldr1E_2g4qqGBsxEYwM7FgeyaSgU71cLG0.woff

h3r77AwDsldr1E_2g4qqGBsxEYwM7FgeyaSgU71cLG0.woff

207 ms

9VWMTeb5jtXkNoTv949NpRsxEYwM7FgeyaSgU71cLG0.woff

9VWMTeb5jtXkNoTv949NpRsxEYwM7FgeyaSgU71cLG0.woff

304 ms

aDjpMND83pDErGXlVEr-SRsxEYwM7FgeyaSgU71cLG0.woff

aDjpMND83pDErGXlVEr-SRsxEYwM7FgeyaSgU71cLG0.woff

303 ms

c5749443-93da-4592-b794-42f28d62ef72.woff

c5749443-93da-4592-b794-42f28d62ef72.woff

303 ms

e56ecb6d-da41-4bd9-982d-2d295bec9ab0.woff

e56ecb6d-da41-4bd9-982d-2d295bec9ab0.woff

298 ms

4d716cea-5ba0-437a-b5a8-89ad159ea2be.woff

4d716cea-5ba0-437a-b5a8-89ad159ea2be.woff

369 ms

BreeW05-ThinOblique.woff

BreeW05-ThinOblique.woff

369 ms

collectedforms.js

collectedforms.js

344 ms

leadflows.js

leadflows.js

416 ms

6256718.js

6256718.js

364 ms

6256718.js

6256718.js

374 ms

conversations-embed.js

conversations-embed.js

326 ms

thunderbolt

thunderbolt

32 ms

deprecation-en.v5.html

deprecation-en.v5.html

10 ms

bolt-performance

bolt-performance

60 ms

deprecation-style.v5.css

deprecation-style.v5.css

6 ms

right-arrow.svg

right-arrow.svg

51 ms

WixMadeforDisplay_W_Bd.woff

WixMadeforDisplay_W_Bd.woff

10 ms

WixMadeforText_W_Bd.woff

WixMadeforText_W_Bd.woff

9 ms

WixMadeforText_W_Rg.woff

WixMadeforText_W_Rg.woff

12 ms

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

84

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

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

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 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

retrolux.com

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: