Tools & Wizards About Us
simviettel.vn screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

simviettel.vn

Chọn Mua Sim Số Đẹp Giá Rẻ Viettel, VinaPhone, MobiFone 10 Số

Page Load Speed

21 sec in total

First Response

6 sec

Resources Loaded

13 sec

Page Rendered

2 sec

simviettel.vn screenshot

About Website

Visit simviettel.vn now to see the best up-to-date Sim Viettel content for Vietnam and also check out these interesting facts you probably never knew about simviettel.vn

Chuyên sim số đẹp giá rẻ. Kho Sim 10 số Vinaphone, Mobifone, Viettel. Sim đầu cổ 0912, 0913. Giao hàng miễn phí trên TQ. CH tại Hà Nội - TP HCM

Visit simviettel.vn

Key Findings

We analyzed Simviettel.vn page load time and found that the first response time was 6 sec and then it took 15 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

simviettel.vn performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.3 s

84/100

10%

Network Requests Diagram

simviettel.vn

6015 ms

A.css,,_style.css+css,,_responsive.css+js,,_jGlider,,_featuredcontentglider.css,Mcc.3aGL3dIo9U.css.pagespeed.cf.yI_UwkJmiX.css

474 ms

jquery.min.js

712 ms

jquery-ui.min.js

958 ms

featuredcontentglider.js

481 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 78% of them (14 requests) were addressed to the original Simviettel.vn, 11% (2 requests) were made to Google-analytics.com and 6% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (6 sec) belongs to the original domain Simviettel.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 123.0 kB (40%)

Content Size

306.2 kB

After Optimization

183.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Simviettel.vn main page is 306.2 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. 25% of websites need less resources to load. HTML takes 129.1 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 113.9 kB

  • Original 129.1 kB
  • After minification 121.2 kB
  • After compression 15.2 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 113.9 kB or 88% of the original size.

Image Optimization

-11%

Potential reduce by 7.3 kB

  • Original 69.6 kB
  • After minification 62.3 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, Sim Viettel needs image optimization as it can save up to 7.3 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 1.8 kB

  • Original 103.7 kB
  • After minification 103.7 kB
  • After compression 101.9 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

-0%

Potential reduce by 10 B

  • Original 3.9 kB
  • After minification 3.9 kB
  • After compression 3.8 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. Simviettel.vn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 4 (31%)

Requests Now

13

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sim Viettel. 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 as a result speed up the page load time.

Network Requests Diagram

simviettel.vn

simviettel.vn

6015 ms

A.css,,_style.css+css,,_responsive.css+js,,_jGlider,,_featuredcontentglider.css,Mcc.3aGL3dIo9U.css.pagespeed.cf.yI_UwkJmiX.css

A.css,,_style.css+css,,_responsive.css+js,,_jGlider,,_featuredcontentglider.css,Mcc.3aGL3dIo9U.css.pagespeed.cf.yI_UwkJmiX.css

474 ms

jquery.min.js

jquery.min.js

712 ms

jquery-ui.min.js

jquery-ui.min.js

958 ms

featuredcontentglider.js

featuredcontentglider.js

481 ms

web.js

web.js

483 ms

ga.js

ga.js

481 ms

bg.png.pagespeed.ce.C3wnbM3HKS.png

bg.png.pagespeed.ce.C3wnbM3HKS.png

5104 ms

xlogo18722.png.pagespeed.ic.hBzlivuGo7.png

xlogo18722.png.pagespeed.ic.hBzlivuGo7.png

5586 ms

xicon-search.png.pagespeed.ic.z09Qq9rfGo.png

xicon-search.png.pagespeed.ic.z09Qq9rfGo.png

245 ms

Viettel.gif.pagespeed.ce.YezFFEi2-d.gif

Viettel.gif.pagespeed.ce.YezFFEi2-d.gif

5238 ms

up.png.pagespeed.ce.GX66_TOMd6.png

up.png.pagespeed.ce.GX66_TOMd6.png

5100 ms

dow.png.pagespeed.ce.31A_yqXcvt.png

dow.png.pagespeed.ce.31A_yqXcvt.png

5243 ms

xred-arrow.jpg.pagespeed.ic.f3a5LQy464.jpg

xred-arrow.jpg.pagespeed.ic.f3a5LQy464.jpg

486 ms

xfooter_02.png.pagespeed.ic.N99Gt5Mwqx.png

xfooter_02.png.pagespeed.ic.N99Gt5Mwqx.png

738 ms

__utm.gif

__utm.gif

20 ms

collect

collect

37 ms

ga-audiences

ga-audiences

32 ms

Accessibility Review

simviettel.vn accessibility score

89

Accessibility Issues

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

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

Form elements do not have associated labels

Best Practices

simviettel.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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

simviettel.vn SEO score

91

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

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 Simviettel.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 Simviettel.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

simviettel.vn

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