Tools & Wizards About Us
nova.com.vn screenshot

Report Summary

  • 2

    Performance

    Renders faster than
    19% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

nova.com.vn

Máy tính cao cấp - Thiết bị văn phòng - NOVA Computer

Page Load Speed

18.6 sec in total

First Response

1 sec

Resources Loaded

13.4 sec

Page Rendered

4.1 sec

nova.com.vn screenshot

About Website

Welcome to nova.com.vn homepage info - get ready to check NOVA best content for Vietnam right away, or after learning these important things about nova.com.vn

Bán máy tính cao cấp, laptop, phụ kiện linh kiện các loại, thiết bị văn phòng, thiết bị mạng, công nghệ, thiết bị số, dịch vụ bảo trì, công ty máy tính nova

Visit nova.com.vn

Key Findings

We analyzed Nova.com.vn page load time and found that the first response time was 1 sec and then it took 17.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

nova.com.vn performance score

2

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.4 s

1/100

10%

LCP (Largest Contentful Paint)

Value11.3 s

0/100

25%

SI (Speed Index)

Value17.7 s

0/100

10%

TBT (Total Blocking Time)

Value10,200 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.541

13/100

15%

TTI (Time to Interactive)

Value38.6 s

0/100

10%

Network Requests Diagram

nova.com.vn

1032 ms

nova.vn

1230 ms

jquery-1.11.1.min.js

752 ms

jquery-ui.min.js

1003 ms

css1422.css

515 ms

Our browser made a total of 183 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Nova.com.vn, 88% (161 requests) were made to Nova.vn and 7% (13 requests) were made to Embed.tawk.to. The less responsive or slowest element that took the longest time to load (5 sec) relates to the external source Nova.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 759.3 kB (12%)

Content Size

6.2 MB

After Optimization

5.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nova.com.vn main page is 6.2 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 5.6 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 272.8 kB

  • Original 297.7 kB
  • After minification 214.7 kB
  • After compression 24.9 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 83.0 kB, which is 28% 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 272.8 kB or 92% of the original size.

Image Optimization

-8%

Potential reduce by 448.4 kB

  • Original 5.6 MB
  • After minification 5.1 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. NOVA images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 25.0 kB

  • Original 261.6 kB
  • After minification 261.6 kB
  • After compression 236.6 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

-23%

Potential reduce by 13.1 kB

  • Original 58.0 kB
  • After minification 58.0 kB
  • After compression 44.9 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. Nova.com.vn needs all CSS files to be minified and compressed as it can save up to 13.1 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 54 (30%)

Requests Now

180

After Optimization

126

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 180 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NOVA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 35 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nova.com.vn

nova.com.vn

1032 ms

nova.vn

nova.vn

1230 ms

jquery-1.11.1.min.js

jquery-1.11.1.min.js

752 ms

jquery-ui.min.js

jquery-ui.min.js

1003 ms

css1422.css

css1422.css

515 ms

bootstrap.min.css

bootstrap.min.css

530 ms

perfect-scrollbar.css

perfect-scrollbar.css

530 ms

style.css

style.css

843 ms

flexslider.css

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843 ms

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845 ms

jquery.ui.touch-punch.min.js

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844 ms

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1092 ms

slick.css

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1094 ms

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1095 ms

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1269 ms

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packery-mode.pkgd.min.js

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1288 ms

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1308 ms

perfect-scrollbar.min.js

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1553 ms

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1551 ms

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1914 ms

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1666 ms

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1551 ms

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1551 ms

slick.min.js

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2066 ms

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1552 ms

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4512 ms

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4556 ms

analytics.js

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491 ms

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4073 ms

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default

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t

t

1552 ms

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2106 ms

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1964 ms

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1983 ms

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2008 ms

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1701 ms

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1594 ms

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1657 ms

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1705 ms

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1702 ms

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1633 ms

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1629 ms

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1589 ms

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1491 ms

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1539 ms

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1568 ms

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66 ms

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91 ms

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78 ms

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96 ms

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146 ms

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8 ms

Accessibility Review

nova.com.vn accessibility score

77

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

nova.com.vn best practices score

75

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

SEO Factors

nova.com.vn SEO score

54

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

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

Language and Encoding

  • Language Detected

    VI

  • Language Claimed

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nova.com.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it matches the claimed language. Our system also found out that Nova.com.vn 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

nova.com.vn

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