Tools & Wizards About Us
refrigerationschool.com screenshot

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

refrigerationschool.com

Trade School in Arizona | Refrigeration School, Inc. (RSI)

Page Load Speed

6.9 sec in total

First Response

51 ms

Resources Loaded

6.2 sec

Page Rendered

711 ms

refrigerationschool.com screenshot

About Website

Welcome to refrigerationschool.com homepage info - get ready to check Refrigeration School best content for India right away, or after learning these important things about refrigerationschool.com

The Refrigeration School, Inc. provides HVAC & Refrigeration and Electrical & Mechanical Technologies training programs. Start your career journey!

Visit refrigerationschool.com

Key Findings

We analyzed Refrigerationschool.com page load time and found that the first response time was 51 ms and then it took 6.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

refrigerationschool.com performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value2,260 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.594

11/100

15%

TTI (Time to Interactive)

Value19.5 s

2/100

10%

Network Requests Diagram

refrigerationschool.com

51 ms

refrigerationschool.com

59 ms

www.rsi.edu

407 ms

gtm.js

71 ms

wp-emoji-release.min.js

77 ms

Our browser made a total of 137 requests to load all elements on the main page. We found that 1% of them (2 requests) were addressed to the original Refrigerationschool.com, 79% (108 requests) were made to Rsi.edu and 2% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (4.6 sec) relates to the external source Rsi.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 628.5 kB (10%)

Content Size

6.1 MB

After Optimization

5.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Refrigerationschool.com main page is 6.1 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 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 619.6 kB

  • Original 832.0 kB
  • After minification 784.9 kB
  • After compression 212.4 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 619.6 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 5.7 kB

  • Original 4.1 MB
  • After minification 4.1 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. Refrigeration School images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 2.8 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 1.1 MB

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

-1%

Potential reduce by 401 B

  • Original 56.3 kB
  • After minification 56.3 kB
  • After compression 55.9 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. Refrigerationschool.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 62 (56%)

Requests Now

110

After Optimization

48

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 110 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Refrigeration School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 28 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

refrigerationschool.com

refrigerationschool.com

51 ms

refrigerationschool.com

refrigerationschool.com

59 ms

www.rsi.edu

www.rsi.edu

407 ms

gtm.js

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71 ms

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77 ms

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104 ms

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Accessibility Review

refrigerationschool.com accessibility score

76

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

refrigerationschool.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Requests the geolocation permission on page load

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

refrigerationschool.com SEO score

86

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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 doesn't use 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 Refrigerationschool.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 Refrigerationschool.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

refrigerationschool.com

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