Report Summary

  • 1

    Performance

    Renders faster than
    19% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

topviet.com.vn

Công ty âm thanh ánh sáng tốt nhất TPHCM - Thiết bị chính hãng, bền đẹp

Page Load Speed

3.8 sec in total

First Response

1.3 sec

Resources Loaded

2.4 sec

Page Rendered

109 ms

topviet.com.vn screenshot

About Website

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

Công ty âm thanh ánh sáng chuyên nghiệp thi công lắp đặt Bar Club, hội trường, karaoke, nhà hàng, cafe phòng trà, thiết bị chính hãng, nhà thầu uy tín ⭐⭐⭐⭐⭐

Visit topviet.com.vn

Key Findings

We analyzed Topviet.com.vn page load time and found that the first response time was 1.3 sec and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

topviet.com.vn performance score

1

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

4/100

10%

LCP (Largest Contentful Paint)

Value42.6 s

0/100

25%

SI (Speed Index)

Value56.4 s

0/100

10%

TBT (Total Blocking Time)

Value4,160 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value1.174

1/100

15%

TTI (Time to Interactive)

Value49.4 s

0/100

10%

Network Requests Diagram

topviet.com.vn

1334 ms

style.css

516 ms

location.js

528 ms

stickyImg

508 ms

pavietnam.gif

517 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that all of those requests were addressed to Topviet.com.vn and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Topviet.com.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.9 kB (84%)

Content Size

24.9 kB

After Optimization

4.0 kB

In fact, the total size of Topviet.com.vn main page is 24.9 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. Only 10% of websites need less resources to load. HTML takes 19.8 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 16.6 kB

  • Original 19.8 kB
  • After minification 13.6 kB
  • After compression 3.2 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 6.2 kB, which is 31% 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 16.6 kB or 84% of the original size.

JavaScript Optimization

-18%

Potential reduce by 39 B

  • Original 212 B
  • After minification 212 B
  • After compression 173 B

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 39 B or 18% of the original size.

CSS Optimization

-87%

Potential reduce by 4.3 kB

  • Original 4.9 kB
  • After minification 4.1 kB
  • After compression 618 B

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. Topviet.com.vn needs all CSS files to be minified and compressed as it can save up to 4.3 kB or 87% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

19

After Optimization

19

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Topviet. According to our analytics all requests are already optimized.

Accessibility Review

topviet.com.vn 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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

topviet.com.vn 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

SEO Factors

topviet.com.vn SEO score

86

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

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

    VI

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Topviet.com.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Topviet.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

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