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sim37.com screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

sim37.com

sim37.com [5]

Page Load Speed

3.6 sec in total

First Response

1.1 sec

Resources Loaded

2.1 sec

Page Rendered

434 ms

sim37.com screenshot

About Website

Click here to check amazing Sim 37 content for Vietnam. Otherwise, check out these important facts you probably never knew about sim37.com

Kho Sim Số Đẹp hơn 3 triệu Số Đẹp giá gốc. Giao sim tận nơi trên toàn quốc.

Visit sim37.com

Key Findings

We analyzed Sim37.com page load time and found that the first response time was 1.1 sec and then it took 2.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

sim37.com performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

50/100

25%

SI (Speed Index)

Value4.0 s

81/100

10%

TBT (Total Blocking Time)

Value1,620 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.082

94/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

sim37.com

1061 ms

css.css

106 ms

analytics_002.js

146 ms

jquery.js

189 ms

bootstrap.js

105 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 90% of them (28 requests) were addressed to the original Sim37.com, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Infooto.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Infooto.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 420.2 kB (72%)

Content Size

584.6 kB

After Optimization

164.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sim37.com main page is 584.6 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. 30% of websites need less resources to load. Javascripts take 250.9 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 90.2 kB

  • Original 101.2 kB
  • After minification 95.9 kB
  • After compression 11.0 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 90.2 kB or 89% of the original size.

Image Optimization

-6%

Potential reduce by 2.8 kB

  • Original 46.0 kB
  • After minification 43.2 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. Sim 37 images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 164.7 kB

  • Original 250.9 kB
  • After minification 244.1 kB
  • After compression 86.2 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 164.7 kB or 66% of the original size.

CSS Optimization

-87%

Potential reduce by 162.4 kB

  • Original 186.4 kB
  • After minification 149.0 kB
  • After compression 24.0 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. Sim37.com needs all CSS files to be minified and compressed as it can save up to 162.4 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (36%)

Requests Now

25

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sim 37. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sim37.com

sim37.com

1061 ms

css.css

css.css

106 ms

analytics_002.js

analytics_002.js

146 ms

jquery.js

jquery.js

189 ms

bootstrap.js

bootstrap.js

105 ms

bootstrap-datepicker.js

bootstrap-datepicker.js

102 ms

scriptlibs.js

scriptlibs.js

123 ms

script.js

script.js

158 ms

analytics.js

analytics.js

161 ms

stv.js

stv.js

175 ms

aindex.php

aindex.php

164 ms

ajax.js

ajax.js

251 ms

ie.css

ie.css

268 ms

firefox.css

firefox.css

267 ms

logo.gif

logo.gif

373 ms

searchsim.png

searchsim.png

314 ms

banner-220.gif

banner-220.gif

1080 ms

hotro.jpg

hotro.jpg

312 ms

analytics.js

analytics.js

102 ms

collect

collect

123 ms

sbg.png

sbg.png

63 ms

logo_mobifone.png

logo_mobifone.png

63 ms

log_viettel.png

log_viettel.png

76 ms

logo_vinaphone.png

logo_vinaphone.png

63 ms

logo_gmobile.png

logo_gmobile.png

89 ms

logo_vietnamobi.png

logo_vietnamobi.png

98 ms

panel.png

panel.png

92 ms

li_icon.png

li_icon.png

95 ms

aindex.php

aindex.php

51 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

64 ms

counter.php

counter.php

130 ms

Accessibility Review

sim37.com accessibility score

89

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

Links do not have a discernible name

Best Practices

sim37.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

Browser errors were logged to the console

SEO Factors

sim37.com SEO score

92

Search Engine Optimization Advices

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

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 Sim37.com 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 Sim37.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

sim37.com

Open Graph description is not detected on the main page of Sim 37. 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: