Tools & Wizards About Us

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

tongkhosim.vn

SIM SỐ ĐẸP - Mua Sim Đẹp giá rẻ #1 từ [299K] | Tổng Kho Sim

Page Load Speed

12.9 sec in total

First Response

934 ms

Resources Loaded

11.6 sec

Page Rendered

392 ms

About Website

Click here to check amazing Tong Kho SIM content for Vietnam. Otherwise, check out these important facts you probably never knew about tongkhosim.vn

Kho 35.078.195 SIM Số Đẹp giá từ【299K】✔️18 năm kinh nghiệm bán Sim Đẹp✔️Uy tín #1✔️SIM chính chủ✔️Ship T/quốc⭐️Mua Sim Số đẹp tại Tongkhosim.com

Visit tongkhosim.vn

Key Findings

We analyzed Tongkhosim.vn page load time and found that the first response time was 934 ms and then it took 12 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

tongkhosim.vn performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value680 ms

43/100

30%

CLS (Cumulative Layout Shift)

Value0.16

73/100

15%

TTI (Time to Interactive)

Value16.8 s

5/100

10%

Network Requests Diagram

tongkhosim.vn

934 ms

www.tongkhosim.com

1605 ms

tongkhosim.com

906 ms

css.php

1956 ms

bia2.png

8378 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Tongkhosim.vn, 75% (18 requests) were made to Tongkhosim.com and 8% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (8.4 sec) relates to the external source Tongkhosim.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 783.5 kB (65%)

Content Size

1.2 MB

After Optimization

421.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tongkhosim.vn main page is 1.2 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. 15% of websites need less resources to load. Images take 687.1 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 178.1 kB

  • Original 195.9 kB
  • After minification 195.8 kB
  • After compression 17.8 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 178.1 kB or 91% of the original size.

Image Optimization

-57%

Potential reduce by 391.0 kB

  • Original 687.1 kB
  • After minification 296.1 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, Tong Kho SIM needs image optimization as it can save up to 391.0 kB or 57% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-54%

Potential reduce by 98.5 kB

  • Original 184.1 kB
  • After minification 181.3 kB
  • After compression 85.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 98.5 kB or 54% of the original size.

CSS Optimization

-84%

Potential reduce by 115.9 kB

  • Original 137.9 kB
  • After minification 126.6 kB
  • After compression 22.1 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. Tongkhosim.vn needs all CSS files to be minified and compressed as it can save up to 115.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (32%)

Requests Now

19

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tong Kho SIM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

tongkhosim.vn accessibility score

82

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

tongkhosim.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

High

Page has valid source maps

SEO Factors

tongkhosim.vn SEO score

91

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

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tongkhosim.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 Tongkhosim.vn main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Tong Kho SIM. 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: