Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

j4s.vn

Trang chủ

Page Load Speed

17.7 sec in total

First Response

4.2 sec

Resources Loaded

13.1 sec

Page Rendered

368 ms

j4s.vn screenshot

About Website

Visit j4s.vn now to see the best up-to-date J 4 S content for Vietnam and also check out these interesting facts you probably never knew about j4s.vn

J4S.VN - việc làm cho sinh viên, việc làm bán thời gian, việc làm nhanh

Visit j4s.vn

Key Findings

We analyzed J4s.vn page load time and found that the first response time was 4.2 sec and then it took 13.5 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

j4s.vn performance score

0

Network Requests Diagram

vi

4200 ms

script.php

814 ms

jquery-ui.min.js

1121 ms

jquery-ui.min.css

573 ms

base.css

551 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 71% of them (73 requests) were addressed to the original J4s.vn, 10% (10 requests) were made to Static.xx.fbcdn.net and 8% (8 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (4.7 sec) belongs to the original domain J4s.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 824.2 kB (57%)

Content Size

1.4 MB

After Optimization

616.0 kB

In fact, the total size of J4s.vn main page is 1.4 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. 55% of websites need less resources to load. Images take 555.6 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 212.5 kB

  • Original 240.2 kB
  • After minification 164.6 kB
  • After compression 27.7 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 75.6 kB, which is 31% 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 212.5 kB or 88% of the original size.

Image Optimization

-20%

Potential reduce by 110.7 kB

  • Original 555.6 kB
  • After minification 444.9 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, J 4 S needs image optimization as it can save up to 110.7 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 372.2 kB

  • Original 490.9 kB
  • After minification 414.5 kB
  • After compression 118.7 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 372.2 kB or 76% of the original size.

CSS Optimization

-84%

Potential reduce by 128.8 kB

  • Original 153.5 kB
  • After minification 120.5 kB
  • After compression 24.7 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. J4s.vn needs all CSS files to be minified and compressed as it can save up to 128.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (42%)

Requests Now

101

After Optimization

59

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J 4 S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

SEO Factors

j4s.vn SEO score

0

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 J4s.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 J4s.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

Open Graph data is detected on the main page of J 4 S. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: