Tools & Wizards About Us
hvacclasses.org screenshot

Report Summary

  • 87

    Performance

    Renders faster than
    89% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

hvacclasses.org

HVAC Technician Training Courses & Online Classes

Page Load Speed

1.7 sec in total

First Response

88 ms

Resources Loaded

806 ms

Page Rendered

763 ms

hvacclasses.org screenshot

About Website

Visit hvacclasses.org now to see the best up-to-date HVAC Classes content for India and also check out these interesting facts you probably never knew about hvacclasses.org

Learn more about your HVAC training options, find information about apprenticeships and online programs, and find schools near you.

Visit hvacclasses.org

Key Findings

We analyzed Hvacclasses.org page load time and found that the first response time was 88 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

hvacclasses.org performance score

87

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

Network Requests Diagram

hvacclasses.org

88 ms

www.hvacclasses.org

119 ms

www.hvacclasses.org

182 ms

js

68 ms

logo.png

84 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 93% of them (28 requests) were addressed to the original Hvacclasses.org, 3% (1 request) were made to Googletagmanager.com and 3% (1 request) were made to Esyoh.com. The less responsive or slowest element that took the longest time to load (182 ms) belongs to the original domain Hvacclasses.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 147.3 kB (44%)

Content Size

333.3 kB

After Optimization

185.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Hvacclasses.org main page is 333.3 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. 25% of websites need less resources to load. HTML takes 188.0 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 146.1 kB

  • Original 188.0 kB
  • After minification 185.8 kB
  • After compression 42.0 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 146.1 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 91.3 kB
  • After minification 91.3 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. HVAC Classes images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 1.1 kB

  • Original 47.7 kB
  • After minification 47.7 kB
  • After compression 46.6 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.

CSS Optimization

-3%

Potential reduce by 157 B

  • Original 6.2 kB
  • After minification 6.2 kB
  • After compression 6.0 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. Hvacclasses.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 9 (39%)

Requests Now

23

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of HVAC Classes. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

hvacclasses.org

hvacclasses.org

88 ms

www.hvacclasses.org

www.hvacclasses.org

119 ms

www.hvacclasses.org

www.hvacclasses.org

182 ms

js

js

68 ms

logo.png

logo.png

84 ms

map-home-462x328.png

map-home-462x328.png

83 ms

s.png

s.png

86 ms

Untitled-3.jpg

Untitled-3.jpg

29 ms

cssua.min.js

cssua.min.js

37 ms

html5shiv.js

html5shiv.js

33 ms

shortcode-custom-result.css

shortcode-custom-result.css

45 ms

jquery.min.js

jquery.min.js

69 ms

functions.js

functions.js

77 ms

widget.js

widget.js

39 ms

esyoh-widget-script.js

esyoh-widget-script.js

78 ms

esyoh-listing-script.js

esyoh-listing-script.js

80 ms

jquery-validate.js

jquery-validate.js

98 ms

jquery.ui.totop.js

jquery.ui.totop.js

80 ms

ac-technician-274x178.jpg

ac-technician-274x178.jpg

80 ms

refrigeration-technician-247x178.jpg

refrigeration-technician-247x178.jpg

91 ms

hvac-installer-274x178.jpg

hvac-installer-274x178.jpg

100 ms

associate-degree-421x299.jpg

associate-degree-421x299.jpg

94 ms

iStock-1463773725-1.jpg

iStock-1463773725-1.jpg

104 ms

webkit-speed.css

webkit-speed.css

46 ms

top-booten.png

top-booten.png

67 ms

roboto-regular-webfont.woff

roboto-regular-webfont.woff

60 ms

roboto-light-webfont.woff

roboto-light-webfont.woff

18 ms

akzidenzgroteskbe-lightcn.woff

akzidenzgroteskbe-lightcn.woff

20 ms

877807618-akzidenzgroteskbe-lightcn.svg

877807618-akzidenzgroteskbe-lightcn.svg

154 ms

opensans-regular_0.woff

opensans-regular_0.woff

33 ms

Accessibility Review

hvacclasses.org accessibility score

87

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

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

hvacclasses.org best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

hvacclasses.org SEO score

100

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

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 Hvacclasses.org 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 Hvacclasses.org 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

hvacclasses.org

Open Graph data is detected on the main page of HVAC Classes. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: