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aclass.com.sg screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

aclass.com.sg

One moment, please...

Page Load Speed

8.2 sec in total

First Response

1.7 sec

Resources Loaded

5.9 sec

Page Rendered

588 ms

aclass.com.sg screenshot

About Website

Click here to check amazing Aclass content. Otherwise, check out these important facts you probably never knew about aclass.com.sg

A-Class is specialized in aircon services Singapore. We offer Air Conditioner Service, Maintenance and Repairing with professional knowledge of customer care.

Visit aclass.com.sg

Key Findings

We analyzed Aclass.com.sg page load time and found that the first response time was 1.7 sec and then it took 6.5 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

aclass.com.sg performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.162

72/100

15%

TTI (Time to Interactive)

Value5.9 s

66/100

10%

Network Requests Diagram

aclass.com.sg

1730 ms

bootstrap.min.css

1413 ms

style.css

1000 ms

style.css

500 ms

bootstrap.min.css

40 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 68% of them (32 requests) were addressed to the original Aclass.com.sg, 19% (9 requests) were made to Fonts.gstatic.com and 6% (3 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Aclass.com.sg.

Page Optimization Overview & Recommendations

Page size can be reduced by 603.6 kB (17%)

Content Size

3.5 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Aclass.com.sg main page is 3.5 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. 40% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 12.6 kB

  • Original 15.5 kB
  • After minification 10.9 kB
  • After compression 2.9 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 4.7 kB, which is 30% 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 12.6 kB or 81% of the original size.

Image Optimization

-10%

Potential reduce by 306.8 kB

  • Original 3.1 MB
  • After minification 2.8 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. Aclass images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 100.3 kB

  • Original 132.9 kB
  • After minification 126.5 kB
  • After compression 32.7 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 100.3 kB or 75% of the original size.

CSS Optimization

-86%

Potential reduce by 184.0 kB

  • Original 213.5 kB
  • After minification 204.0 kB
  • After compression 29.5 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. Aclass.com.sg needs all CSS files to be minified and compressed as it can save up to 184.0 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (31%)

Requests Now

32

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aclass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

aclass.com.sg

aclass.com.sg

1730 ms

bootstrap.min.css

bootstrap.min.css

1413 ms

style.css

style.css

1000 ms

style.css

style.css

500 ms

bootstrap.min.css

bootstrap.min.css

40 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

51 ms

font-awesome.min.css

font-awesome.min.css

35 ms

animate.min.css

animate.min.css

47 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

1071 ms

formValidation.min.js

formValidation.min.js

1331 ms

validate-bootstrap.min.js

validate-bootstrap.min.js

491 ms

custom-validation.js

custom-validation.js

555 ms

css2

css2

39 ms

logo.png

logo.png

270 ms

banner-11.png

banner-11.png

290 ms

banner-1.png

banner-1.png

521 ms

banner-2.png

banner-2.png

1482 ms

banner-3.png

banner-3.png

1785 ms

1.jpg

1.jpg

425 ms

adhoc.jpg

adhoc.jpg

540 ms

yearly.jpg

yearly.jpg

785 ms

professoinal.jpg

professoinal.jpg

956 ms

installation.jpg

installation.jpg

759 ms

residental.jpg

residental.jpg

810 ms

commercial.jpg

commercial.jpg

996 ms

industrial.jpg

industrial.jpg

1034 ms

liftaircon.png

liftaircon.png

2931 ms

center.jpg

center.jpg

1502 ms

2.png

2.png

1243 ms

4.png

4.png

1287 ms

1.png

1.png

1491 ms

3.png

3.png

1553 ms

footer-bg.png

footer-bg.png

2956 ms

paypal.png

paypal.png

1727 ms

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111 ms

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84 ms

SemplicitaPro-Bold.otf

SemplicitaPro-Bold.otf

2721 ms

SemplicitaPro-Medium.otf

SemplicitaPro-Medium.otf

1963 ms

SemplicitaPro.otf

SemplicitaPro.otf

1892 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

29 ms

Accessibility Review

aclass.com.sg accessibility score

71

Accessibility Issues

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

Image elements do not have [alt] attributes

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

aclass.com.sg best practices score

67

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

aclass.com.sg SEO score

92

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

Image elements do not have [alt] attributes

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 Aclass.com.sg 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 Aclass.com.sg 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

aclass.com.sg

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