Tools & Wizards About Us

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

nortekair.com

Nortek Air Solutions - Custom HVAC Manufacturer

Page Load Speed

2.1 sec in total

First Response

42 ms

Resources Loaded

1.2 sec

Page Rendered

774 ms

About Website

Welcome to nortekair.com homepage info - get ready to check Nortek Air best content for United States right away, or after learning these important things about nortekair.com

Nortek Air Solutions is the world's largest custom HVAC manufacturer, building efficient, dependable heating and cooling systems that create ideal environments for working, living and learning.

Visit nortekair.com

Key Findings

We analyzed Nortekair.com page load time and found that the first response time was 42 ms and then it took 2 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

nortekair.com performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

55/100

10%

LCP (Largest Contentful Paint)

Value22.5 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value1,590 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value21.2 s

1/100

10%

Network Requests Diagram

nortekair.com

42 ms

www.nortekair.com

110 ms

style.min.css

19 ms

styles.css

37 ms

yui3.css

46 ms

Our browser made a total of 98 requests to load all elements on the main page. We found that 82% of them (80 requests) were addressed to the original Nortekair.com, 7% (7 requests) were made to Fonts.gstatic.com and 6% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (780 ms) belongs to the original domain Nortekair.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 346.5 kB (6%)

Content Size

5.5 MB

After Optimization

5.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nortekair.com main page is 5.5 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 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 103.0 kB

  • Original 124.6 kB
  • After minification 119.5 kB
  • After compression 21.5 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 103.0 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 12.6 kB

  • Original 4.7 MB
  • After minification 4.7 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. Nortek Air images are well optimized though.

JavaScript Optimization

-40%

Potential reduce by 223.1 kB

  • Original 551.2 kB
  • After minification 551.2 kB
  • After compression 328.1 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 223.1 kB or 40% of the original size.

CSS Optimization

-5%

Potential reduce by 7.8 kB

  • Original 162.0 kB
  • After minification 162.0 kB
  • After compression 154.3 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. Nortekair.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 39 (46%)

Requests Now

85

After Optimization

46

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nortek Air. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

nortekair.com accessibility score

92

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

nortekair.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

nortekair.com SEO score

98

Search Engine Optimization Advices

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 Nortekair.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 Nortekair.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 Nortek Air. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: