Tools & Wizards About Us
simviphanoi.com screenshot

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

simviphanoi.com

SimVipHaNoi.com - Kho >20 triệu sim số đẹp giá rẻ "Khó Cưỡng"

Page Load Speed

4.6 sec in total

First Response

47 ms

Resources Loaded

3.9 sec

Page Rendered

712 ms

simviphanoi.com screenshot

About Website

Welcome to simviphanoi.com homepage info - get ready to check Sim Vip Ha Noi best content for Vietnam right away, or after learning these important things about simviphanoi.com

Kho hơn 20.000.000 sim số đẹp đa dạng nhà mạng, loại sim và các phân khúc giá. Cam kết giá rẻ nhất VIệt Nam. Sim chính chủ, Giao sim Miễn Phí Toàn Quốc

Visit simviphanoi.com

Key Findings

We analyzed Simviphanoi.com page load time and found that the first response time was 47 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

simviphanoi.com performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

40/100

25%

SI (Speed Index)

Value12.1 s

3/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value4.5 s

82/100

10%

Network Requests Diagram

simviphanoi.com

47 ms

simviphanoi.com

965 ms

font-awesome.min.css

48 ms

bootstrap.min.css

36 ms

all.css

1180 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 86% of them (25 requests) were addressed to the original Simviphanoi.com, 7% (2 requests) were made to Stackpath.bootstrapcdn.com and 7% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Simviphanoi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 304.0 kB (47%)

Content Size

646.7 kB

After Optimization

342.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Simviphanoi.com main page is 646.7 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. 35% of websites need less resources to load. HTML takes 311.4 kB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 286.3 kB

  • Original 311.4 kB
  • After minification 171.2 kB
  • After compression 25.1 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 140.2 kB, which is 45% 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 286.3 kB or 92% of the original size.

Image Optimization

-14%

Potential reduce by 15.6 kB

  • Original 111.4 kB
  • After minification 95.8 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 Vip Ha Noi needs image optimization as it can save up to 15.6 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 202 B

  • Original 172.0 kB
  • After minification 172.0 kB
  • After compression 171.8 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

-4%

Potential reduce by 1.9 kB

  • Original 51.9 kB
  • After minification 51.9 kB
  • After compression 49.9 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. Simviphanoi.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (25%)

Requests Now

24

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sim Vip Ha Noi. 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

simviphanoi.com

simviphanoi.com

47 ms

simviphanoi.com

simviphanoi.com

965 ms

font-awesome.min.css

font-awesome.min.css

48 ms

bootstrap.min.css

bootstrap.min.css

36 ms

all.css

all.css

1180 ms

jquery.min.js

jquery.min.js

885 ms

popper.min.js

popper.min.js

592 ms

qazy.min.js

qazy.min.js

1174 ms

bootstrap.min.js

bootstrap.min.js

46 ms

main.js

main.js

604 ms

swiper.min.js

swiper.min.js

1015 ms

toastr.min.js

toastr.min.js

1014 ms

Untitled-1-05.png

Untitled-1-05.png

594 ms

search_icon.png

search_icon.png

61 ms

sprite_icon.png

sprite_icon.png

62 ms

new2.gif

new2.gif

62 ms

tin-tuc-sim.png

tin-tuc-sim.png

63 ms

viettel-big.svg

viettel-big.svg

584 ms

vinaphone-big.svg

vinaphone-big.svg

609 ms

mobifone-big.svg

mobifone-big.svg

301 ms

itelecom-big.svg

itelecom-big.svg

881 ms

vietnamobile-big.svg

vietnamobile-big.svg

605 ms

gmobile-big.svg

gmobile-big.svg

892 ms

flash2.png

flash2.png

1204 ms

telco-background-mobile.png

telco-background-mobile.png

611 ms

phone2.png

phone2.png

622 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

33 ms

404

404

633 ms

simviphanoi.com

simviphanoi.com

682 ms

Accessibility Review

simviphanoi.com accessibility score

66

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

simviphanoi.com 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

Page has valid source maps

SEO Factors

simviphanoi.com 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 Simviphanoi.com 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 Simviphanoi.com 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

simviphanoi.com

Open Graph description is not detected on the main page of Sim Vip Ha Noi. 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: