Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 55

    SEO

    Google-friendlier than
    20% of websites

prostar.zda.vn

Site Maintenance

Page Load Speed

10 sec in total

First Response

1.3 sec

Resources Loaded

8.5 sec

Page Rendered

187 ms

prostar.zda.vn screenshot

About Website

Welcome to prostar.zda.vn homepage info - get ready to check Prostar Zda best content for Vietnam right away, or after learning these important things about prostar.zda.vn

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Visit prostar.zda.vn

Key Findings

We analyzed Prostar.zda.vn page load time and found that the first response time was 1.3 sec and then it took 8.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

prostar.zda.vn performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

Network Requests Diagram

prostar.zidean.com

1289 ms

stylev5.css

1133 ms

components.css

1234 ms

jquery.min.js

1448 ms

common.js

1249 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Prostar.zda.vn, 6% (3 requests) were made to Staticxx.facebook.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.6 sec) relates to the external source Zidean.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 259.1 kB (62%)

Content Size

416.9 kB

After Optimization

157.9 kB

In fact, the total size of Prostar.zda.vn main page is 416.9 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. 40% of websites need less resources to load. Javascripts take 200.6 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 37.8 kB

  • Original 44.9 kB
  • After minification 31.2 kB
  • After compression 7.1 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 13.7 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 37.8 kB or 84% of the original size.

Image Optimization

-19%

Potential reduce by 15.8 kB

  • Original 82.7 kB
  • After minification 66.9 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. Obviously, Prostar Zda needs image optimization as it can save up to 15.8 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-66%

Potential reduce by 132.2 kB

  • Original 200.6 kB
  • After minification 170.9 kB
  • After compression 68.4 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 132.2 kB or 66% of the original size.

CSS Optimization

-83%

Potential reduce by 73.4 kB

  • Original 88.8 kB
  • After minification 74.3 kB
  • After compression 15.4 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. Prostar.zda.vn needs all CSS files to be minified and compressed as it can save up to 73.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (41%)

Requests Now

44

After Optimization

26

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Prostar Zda. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

prostar.zda.vn accessibility score

68

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

Document doesn't have a <title> element

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

prostar.zda.vn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

prostar.zda.vn SEO score

55

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

Document doesn't have a <title> element

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Prostar.zda.vn can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Prostar.zda.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 Prostar Zda. 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: