Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

zdnet.co.kr

IT세상을 바꾸는 힘 지디넷코리아

Page Load Speed

9.4 sec in total

First Response

645 ms

Resources Loaded

8.4 sec

Page Rendered

355 ms

zdnet.co.kr screenshot

About Website

Visit zdnet.co.kr now to see the best up-to-date Zdnet content for South Korea and also check out these interesting facts you probably never knew about zdnet.co.kr

Visit zdnet.co.kr

Key Findings

We analyzed Zdnet.co.kr page load time and found that the first response time was 645 ms and then it took 8.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

zdnet.co.kr performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value2,440 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

Network Requests Diagram

zdnet.co.kr

645 ms

www.zdnet.co.kr

1384 ms

default_main.css

611 ms

jquery-1.11.2.js

2931 ms

jquery.carouFredSel-6.2.1-packed.js

1261 ms

Our browser made a total of 140 requests to load all elements on the main page. We found that 55% of them (77 requests) were addressed to the original Zdnet.co.kr, 27% (38 requests) were made to Image.zdnet.co.kr and 12% (17 requests) were made to Adsr.meganews.co.kr. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source Image.zdnet.co.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (23%)

Content Size

5.0 MB

After Optimization

3.9 MB

In fact, the total size of Zdnet.co.kr main page is 5.0 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. 45% of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 46.9 kB

  • Original 61.5 kB
  • After minification 53.6 kB
  • After compression 14.6 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 7.9 kB, which is 13% 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 46.9 kB or 76% of the original size.

Image Optimization

-5%

Potential reduce by 194.3 kB

  • Original 3.9 MB
  • After minification 3.7 MB

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. Zdnet images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 373.6 kB

  • Original 477.0 kB
  • After minification 310.8 kB
  • After compression 103.4 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 373.6 kB or 78% of the original size.

CSS Optimization

-84%

Potential reduce by 534.7 kB

  • Original 633.1 kB
  • After minification 494.2 kB
  • After compression 98.4 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. Zdnet.co.kr needs all CSS files to be minified and compressed as it can save up to 534.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (14%)

Requests Now

137

After Optimization

118

The browser has sent 137 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zdnet. 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 as a result speed up the page load time.

Accessibility Review

zdnet.co.kr accessibility score

68

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

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

zdnet.co.kr 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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

zdnet.co.kr SEO score

93

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

Language and Encoding

  • Language Detected

    KO

  • Language Claimed

    KO

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zdnet.co.kr can be misinterpreted by Google and other search engines. Our service has detected that Korean is used on the page, and it matches the claimed language. Our system also found out that Zdnet.co.kr 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 description is not detected on the main page of Zdnet. 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: