Tools & Wizards About Us
lightingsurvey.com screenshot

Report Summary

  • 81

    Performance

    Renders faster than
    87% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

lightingsurvey.com

Lighting Survey

Page Load Speed

664 ms in total

First Response

113 ms

Resources Loaded

322 ms

Page Rendered

229 ms

lightingsurvey.com screenshot

About Website

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Key Findings

We analyzed Lightingsurvey.com page load time and found that the first response time was 113 ms and then it took 551 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

lightingsurvey.com performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

65/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value430 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.7 s

100/100

10%

Network Requests Diagram

lightingsurvey.com

113 ms

lasi.css

22 ms

lg-share-en.gif

7 ms

addthis_widget.js

15 ms

Lighting-Audit-Services-Inc.gif

123 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 80% of them (16 requests) were addressed to the original Lightingsurvey.com, 15% (3 requests) were made to S7.addthis.com and 5% (1 request) were made to M.addthis.com. The less responsive or slowest element that took the longest time to load (124 ms) belongs to the original domain Lightingsurvey.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 292.3 kB (65%)

Content Size

451.6 kB

After Optimization

159.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lightingsurvey.com main page is 451.6 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. 20% of websites need less resources to load. Javascripts take 378.3 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 31.2 kB

  • Original 45.9 kB
  • After minification 45.6 kB
  • After compression 14.7 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 31.2 kB or 68% of the original size.

Image Optimization

-52%

Potential reduce by 11.9 kB

  • Original 22.7 kB
  • After minification 10.8 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, Lighting Survey needs image optimization as it can save up to 11.9 kB or 52% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 245.3 kB

  • Original 378.3 kB
  • After minification 378.3 kB
  • After compression 133.0 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 245.3 kB or 65% of the original size.

CSS Optimization

-84%

Potential reduce by 3.9 kB

  • Original 4.7 kB
  • After minification 3.5 kB
  • After compression 741 B

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. Lightingsurvey.com needs all CSS files to be minified and compressed as it can save up to 3.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (37%)

Requests Now

19

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lighting Survey. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

lightingsurvey.com

lightingsurvey.com

113 ms

lasi.css

lasi.css

22 ms

lg-share-en.gif

lg-share-en.gif

7 ms

addthis_widget.js

addthis_widget.js

15 ms

Lighting-Audit-Services-Inc.gif

Lighting-Audit-Services-Inc.gif

123 ms

Lighting-Audit-Services-Inc2.gif

Lighting-Audit-Services-Inc2.gif

124 ms

300lo.json

300lo.json

51 ms

fadebggreen.jpg

fadebggreen.jpg

43 ms

headertl.png

headertl.png

44 ms

headerct.png

headerct.png

42 ms

headertr.png

headertr.png

45 ms

headercl.png

headercl.png

44 ms

headercr.png

headercr.png

43 ms

headerbl.png

headerbl.png

44 ms

headercb.png

headercb.png

46 ms

headerbr.png

headerbr.png

46 ms

member_logo_blk.gif

member_logo_blk.gif

65 ms

IESSustainingMember.gif

IESSustainingMember.gif

66 ms

sh.8e5f85691f9aaa082472a194.html

sh.8e5f85691f9aaa082472a194.html

32 ms

print.css

print.css

21 ms

Accessibility Review

lightingsurvey.com accessibility score

93

Accessibility Issues

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

Best Practices

lightingsurvey.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

lightingsurvey.com SEO score

69

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lightingsurvey.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 Lightingsurvey.com main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

lightingsurvey.com

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