Tools & Wizards About Us
nationalairwarehouse.com screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

nationalairwarehouse.com

HVAC Wholesale Distributors | HVAC Parts and Accesories

Page Load Speed

1.9 sec in total

First Response

227 ms

Resources Loaded

1.2 sec

Page Rendered

453 ms

nationalairwarehouse.com screenshot

About Website

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

National Air Warehouse is your trusted HVAC partner. Discover top-quality heating and cooling solutions. Elevate your comfort and savings with us!

Visit nationalairwarehouse.com

Key Findings

We analyzed Nationalairwarehouse.com page load time and found that the first response time was 227 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

nationalairwarehouse.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

29/100

25%

SI (Speed Index)

Value6.5 s

38/100

10%

TBT (Total Blocking Time)

Value2,620 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

www.nationalairwarehouse.com

227 ms

css

60 ms

802252e224885ede763ddf9e1ffd0518.css

85 ms

363316094e9efbe52faa6fb85afa8be9.js

222 ms

font-awesome.min.css

33 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 63% of them (44 requests) were addressed to the original Nationalairwarehouse.com, 9% (6 requests) were made to Nsg.symantec.com and 4% (3 requests) were made to Shopperapproved.com. The less responsive or slowest element that took the longest time to load (375 ms) belongs to the original domain Nationalairwarehouse.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 626.5 kB (35%)

Content Size

1.8 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nationalairwarehouse.com main page is 1.8 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. 55% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 75.2 kB

  • Original 88.3 kB
  • After minification 82.7 kB
  • After compression 13.0 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 75.2 kB or 85% of the original size.

Image Optimization

-7%

Potential reduce by 68.5 kB

  • Original 1.0 MB
  • After minification 937.7 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. Nationalairwarehouse images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 189.5 kB

  • Original 350.8 kB
  • After minification 338.6 kB
  • After compression 161.3 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 189.5 kB or 54% of the original size.

CSS Optimization

-85%

Potential reduce by 293.3 kB

  • Original 343.8 kB
  • After minification 278.0 kB
  • After compression 50.4 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. Nationalairwarehouse.com needs all CSS files to be minified and compressed as it can save up to 293.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (43%)

Requests Now

63

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nationalairwarehouse. 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 from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.nationalairwarehouse.com

www.nationalairwarehouse.com

227 ms

css

css

60 ms

802252e224885ede763ddf9e1ffd0518.css

802252e224885ede763ddf9e1ffd0518.css

85 ms

363316094e9efbe52faa6fb85afa8be9.js

363316094e9efbe52faa6fb85afa8be9.js

222 ms

font-awesome.min.css

font-awesome.min.css

33 ms

admin_backend.css

admin_backend.css

78 ms

ga.js

ga.js

172 ms

w.js

w.js

195 ms

widgetfooter-darklogo.png

widgetfooter-darklogo.png

168 ms

logo.png

logo.png

51 ms

contactus.8882920874.png

contactus.8882920874.png

50 ms

bbb-logo-large2.png

bbb-logo-large2.png

50 ms

benefits_banner3.png

benefits_banner3.png

166 ms

180_180_Air_Conditioner_Systems.jpg

180_180_Air_Conditioner_Systems.jpg

116 ms

180_180_heat_pump_systems.jpg

180_180_heat_pump_systems.jpg

115 ms

180_180_Gas_Heating_Systems.jpg

180_180_Gas_Heating_Systems.jpg

167 ms

180_180_Silver_HVAC_Flex_Ducting.jpg

180_180_Silver_HVAC_Flex_Ducting.jpg

192 ms

goodmanhorgassplit_10.jpg

goodmanhorgassplit_10.jpg

239 ms

goodmanhorgassplit_6.jpg

goodmanhorgassplit_6.jpg

192 ms

goodmanvertgassplit.jpg

goodmanvertgassplit.jpg

239 ms

goodmanvertgassplit_1_1.jpg

goodmanvertgassplit_1_1.jpg

217 ms

goodmanhorgassplit_9.jpg

goodmanhorgassplit_9.jpg

239 ms

goodmanvertgassplit_1_2.jpg

goodmanvertgassplit_1_2.jpg

267 ms

TubingInsulation.jpg

TubingInsulation.jpg

238 ms

copper_line_set.jpg

copper_line_set.jpg

278 ms

rheemelectricsplit_24.jpg

rheemelectricsplit_24.jpg

279 ms

rheemelectricsplit_2.jpg

rheemelectricsplit_2.jpg

277 ms

rheemclassicfurnace_8.png

rheemclassicfurnace_8.png

375 ms

norton-secure-seal_9.png

norton-secure-seal_9.png

266 ms

BBB_A_Rating_Seal.png

BBB_A_Rating_Seal.png

297 ms

Acccepted_payment_methods_banner.png

Acccepted_payment_methods_banner.png

297 ms

gtm.js

gtm.js

205 ms

noisy_texture.png

noisy_texture.png

319 ms

links_div.gif

links_div.gif

318 ms

common.gif

common.gif

317 ms

loader.gif

loader.gif

314 ms

ODelI1aHBYDBqgeIAH2zlBM0YzuT7MdOe03otPbuUS0.woff

ODelI1aHBYDBqgeIAH2zlBM0YzuT7MdOe03otPbuUS0.woff

164 ms

nav_container.gif

nav_container.gif

307 ms

common_theme.gif

common_theme.gif

306 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

48 ms

banner_slider.html

banner_slider.html

299 ms

10920.js

10920.js

87 ms

footer_cms_container.gif

footer_cms_container.gif

235 ms

__utm.gif

__utm.gif

33 ms

clickstream.min.js

clickstream.min.js

97 ms

jquery.noconflict.js

jquery.noconflict.js

42 ms

collect

collect

110 ms

conversion_async.js

conversion_async.js

68 ms

swap.js

swap.js

65 ms

gjs.aspx

gjs.aspx

93 ms

61 ms

ga-audiences

ga-audiences

102 ms

style.css

style.css

36 ms

css

css

25 ms

jquery.min.js

jquery.min.js

37 ms

coin-slider.js

coin-slider.js

35 ms

coin-slider-styles.css

coin-slider-styles.css

34 ms

100 ms

banner_1.jpg

banner_1.jpg

56 ms

banner_2.jpg

banner_2.jpg

43 ms

banner_3.jpg

banner_3.jpg

42 ms

banner_4.jpg

banner_4.jpg

60 ms

img-slider-nav.png

img-slider-nav.png

43 ms

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

4 ms

rollover.core.js

rollover.core.js

5 ms

ii.aspx

ii.aspx

10 ms

AltSealInfo.aspx

AltSealInfo.aspx

21 ms

e317f4cfb578156a1005a2bd48716c06.css

e317f4cfb578156a1005a2bd48716c06.css

25 ms

MP950860283a_Seal_BLX.png

MP950860283a_Seal_BLX.png

7 ms

Static.aspx

Static.aspx

51 ms

Accessibility Review

nationalairwarehouse.com accessibility score

91

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

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

nationalairwarehouse.com best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

nationalairwarehouse.com SEO score

91

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 Nationalairwarehouse.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 Nationalairwarehouse.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

nationalairwarehouse.com

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