Tools & Wizards About Us
viettelstore.vn screenshot

Report Summary

  • 0

    Performance

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

viettelstore.vn

Viettel Store - Nhà mạng bán điện thoại lớn nhất Việt Nam

Page Load Speed

20.8 sec in total

First Response

1.2 sec

Resources Loaded

17.9 sec

Page Rendered

1.7 sec

viettelstore.vn screenshot

About Website

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

Đến ngay ViettelStore để mua điện thoại, laptop, máy tính bảng, phụ kiện chính hãng mới 100% với giá ưu đãi nhất, dịch vụ tốt nhất. Hotline: 1800 8123.

Visit viettelstore.vn

Key Findings

We analyzed Viettelstore.vn page load time and found that the first response time was 1.2 sec and then it took 19.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

viettelstore.vn performance score

0

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.2 s

1/100

10%

LCP (Largest Contentful Paint)

Value63.4 s

0/100

25%

SI (Speed Index)

Value30.5 s

0/100

10%

TBT (Total Blocking Time)

Value4,610 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value2.073

0/100

15%

TTI (Time to Interactive)

Value59.6 s

0/100

10%

Network Requests Diagram

viettelstore.vn

1200 ms

ProductListPK.min.css

1519 ms

jquery.min.js

1406 ms

js

63 ms

ztracker.js

2202 ms

Our browser made a total of 260 requests to load all elements on the main page. We found that 10% of them (26 requests) were addressed to the original Viettelstore.vn, 52% (135 requests) were made to Cdn1.viettelstore.vn and 15% (38 requests) were made to Cdn2.viettelstore.vn. The less responsive or slowest element that took the longest time to load (11.5 sec) relates to the external source Cdn.viettelstore.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (11%)

Content Size

10.4 MB

After Optimization

9.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Viettelstore.vn main page is 10.4 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. 80% 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 9.6 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 599.8 kB

  • Original 651.3 kB
  • After minification 455.1 kB
  • After compression 51.4 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. This page needs HTML code to be minified as it can gain 196.2 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 599.8 kB or 92% of the original size.

Image Optimization

-6%

Potential reduce by 555.6 kB

  • Original 9.6 MB
  • After minification 9.0 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. Viettel Store images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.2 kB

  • Original 121.2 kB
  • After minification 121.1 kB
  • After compression 119.9 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

-21%

Potential reduce by 12.9 kB

  • Original 60.5 kB
  • After minification 60.5 kB
  • After compression 47.6 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. Viettelstore.vn needs all CSS files to be minified and compressed as it can save up to 12.9 kB or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (11%)

Requests Now

253

After Optimization

226

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 253 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Viettel Store. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

viettelstore.vn

viettelstore.vn

1200 ms

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1519 ms

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1713 ms

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673 ms

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501 ms

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629 ms

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907 ms

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1779 ms

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1911 ms

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1914 ms

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1938 ms

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1970 ms

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1923 ms

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1856 ms

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1961 ms

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1927 ms

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1889 ms

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1902 ms

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1881 ms

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1941 ms

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1932 ms

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1997 ms

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1937 ms

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1844 ms

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1788 ms

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2016 ms

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1916 ms

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2059 ms

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1804 ms

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1752 ms

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1826 ms

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1901 ms

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2039 ms

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1930 ms

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1714 ms

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1810 ms

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1863 ms

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1859 ms

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1903 ms

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1905 ms

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1934 ms

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1899 ms

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1864 ms

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1892 ms

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1856 ms

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1649 ms

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574 ms

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656 ms

Accessibility Review

viettelstore.vn accessibility score

72

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

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.

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

viettelstore.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

viettelstore.vn SEO score

77

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

High

robots.txt is not valid

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

High

Tap targets are not sized appropriately

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 Viettelstore.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 Viettelstore.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

viettelstore.vn

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