Tools & Wizards About Us

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

tersenlighting.com

Acuity Brands | Lighting, Controls, and Building Management Solutions

Page Load Speed

6.5 sec in total

First Response

1.3 sec

Resources Loaded

5 sec

Page Rendered

232 ms

About Website

Visit tersenlighting.com now to see the best up-to-date Tersen Lighting content and also check out these interesting facts you probably never knew about tersenlighting.com

Acuity Brands, Inc. is the North American market leader and one of the world’s leading providers of lighting and building management solutions.

Visit tersenlighting.com

Key Findings

We analyzed Tersenlighting.com page load time and found that the first response time was 1.3 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster. This domain responded with an error, which can significantly jeopardize Tersenlighting.com rating and web reputation

Performance Metrics

tersenlighting.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value24.6 s

0/100

25%

SI (Speed Index)

Value17.3 s

0/100

10%

TBT (Total Blocking Time)

Value3,220 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value25.7 s

0/100

10%

Network Requests Diagram

tersen

1253 ms

bundleless

320 ms

scripts

419 ms

jsapi

41 ms

conversion_async.js

18 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Tersenlighting.com, 6% (4 requests) were made to Google.com and 5% (3 requests) were made to W.sharethis.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Acuitybrands.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 436.9 kB (59%)

Content Size

746.2 kB

After Optimization

309.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tersenlighting.com main page is 746.2 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. 40% of websites need less resources to load. Javascripts take 448.0 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 52.6 kB

  • Original 62.5 kB
  • After minification 53.5 kB
  • After compression 9.9 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 8.9 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 52.6 kB or 84% of the original size.

Image Optimization

-23%

Potential reduce by 49.5 kB

  • Original 210.7 kB
  • After minification 161.2 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. Obviously, Tersen Lighting needs image optimization as it can save up to 49.5 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 313.8 kB

  • Original 448.0 kB
  • After minification 447.9 kB
  • After compression 134.1 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 313.8 kB or 70% of the original size.

CSS Optimization

-84%

Potential reduce by 21.0 kB

  • Original 25.1 kB
  • After minification 25.1 kB
  • After compression 4.1 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. Tersenlighting.com needs all CSS files to be minified and compressed as it can save up to 21.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (57%)

Requests Now

56

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tersen Lighting. 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.

Network Requests Diagram

Accessibility Review

tersenlighting.com accessibility score

89

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.

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

tersenlighting.com best practices score

75

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

Missing source maps for large first-party JavaScript

SEO Factors

tersenlighting.com SEO score

89

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

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 Tersenlighting.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 Tersenlighting.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 Tersen Lighting. 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: