Tools & Wizards About Us
dongascience.com screenshot

Report Summary

  • 7

    Performance

    Renders faster than
    22% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

dongascience.com

대한민국 1등 과학브랜드, 동아사이언스

Page Load Speed

29.3 sec in total

First Response

646 ms

Resources Loaded

27.9 sec

Page Rendered

699 ms

dongascience.com screenshot

About Website

Welcome to dongascience.com homepage info - get ready to check Dongascience best content for South Korea right away, or after learning these important things about dongascience.com

모든 사람에게 즐거운 과학을 선물합니다 깊이 있는 전문적인 과학뉴스와 일상생활 속 과학 상식까지 국내 NO.1 과학 포털에서 '즐거운 과학'을 만나보세요!

Visit dongascience.com

Key Findings

We analyzed Dongascience.com page load time and found that the first response time was 646 ms and then it took 28.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 14 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

dongascience.com performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value15.9 s

0/100

10%

TBT (Total Blocking Time)

Value2,070 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.345

32/100

15%

TTI (Time to Interactive)

Value23.3 s

1/100

10%

Network Requests Diagram

dongascience.com

646 ms

www.dongascience.com

606 ms

www.dongascience.com

1665 ms

jquery.min.js

38 ms

common.css

1366 ms

Our browser made a total of 130 requests to load all elements on the main page. We found that 12% of them (16 requests) were addressed to the original Dongascience.com, 44% (57 requests) were made to Image.dongascience.com and 22% (28 requests) were made to Img.dongascience.com. The less responsive or slowest element that took the longest time to load (19.7 sec) relates to the external source Image.dongascience.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 604.4 kB (17%)

Content Size

3.5 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dongascience.com main page is 3.5 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. Only a small number of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 205.6 kB

  • Original 253.6 kB
  • After minification 166.0 kB
  • After compression 47.9 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 87.6 kB, which is 35% 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 205.6 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 153.2 kB

  • Original 2.9 MB
  • After minification 2.7 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. Dongascience images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 144.3 kB

  • Original 228.8 kB
  • After minification 161.0 kB
  • After compression 84.5 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 144.3 kB or 63% of the original size.

CSS Optimization

-84%

Potential reduce by 101.2 kB

  • Original 120.7 kB
  • After minification 102.9 kB
  • After compression 19.5 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. Dongascience.com needs all CSS files to be minified and compressed as it can save up to 101.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (27%)

Requests Now

102

After Optimization

74

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dongascience. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dongascience.com

dongascience.com

646 ms

www.dongascience.com

www.dongascience.com

606 ms

www.dongascience.com

www.dongascience.com

1665 ms

jquery.min.js

jquery.min.js

38 ms

common.css

common.css

1366 ms

common_19.css

common_19.css

568 ms

dsimg_set.js

dsimg_set.js

1007 ms

jquery.dotdotdot.js

jquery.dotdotdot.js

572 ms

function.js

function.js

583 ms

common.js

common.js

595 ms

owl.carousel.min.css

owl.carousel.min.css

1028 ms

owl.carousel.min.js

owl.carousel.min.js

1638 ms

search_auto_complete.js

search_auto_complete.js

608 ms

adsbygoogle.js

adsbygoogle.js

337 ms

dable_main.css

dable_main.css

607 ms

dable.js

dable.js

755 ms

dscommon2023.css

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1043 ms

js

js

82 ms

dscommon.css

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991 ms

kakao.min.js

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934 ms

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383 ms

clipboard.min.js

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394 ms

jquery.bxslider.css

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410 ms

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621 ms

ellips.js

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423 ms

ellips.css

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562 ms

kakao.min.js

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159 ms

plugin.min.js

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219 ms

hotjar-2934287.js

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220 ms

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16931 ms

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16758 ms

top_news.svg

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13659 ms

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13654 ms

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13659 ms

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13656 ms

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13656 ms

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19722 ms

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19724 ms

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19726 ms

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19727 ms

show_ads_impl.js

show_ads_impl.js

10402 ms

top_ico_auth.svg

top_ico_auth.svg

16695 ms

NotoSansKR-Regular.woff

NotoSansKR-Regular.woff

1957 ms

NotoSansKR-Medium.woff

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10361 ms

NotoSansKR-Light.woff

NotoSansKR-Light.woff

11926 ms

NotoSansKR-Thin.woff

NotoSansKR-Thin.woff

11919 ms

NotoSansKR-Bold.woff

NotoSansKR-Bold.woff

11922 ms

NotoSansKR-Black.woff

NotoSansKR-Black.woff

11924 ms

Pretendard-Regular.woff

Pretendard-Regular.woff

11827 ms

Pretendard-Medium.woff

Pretendard-Medium.woff

13542 ms

Pretendard-SemiBold.woff

Pretendard-SemiBold.woff

13533 ms

Pretendard-Bold.woff

Pretendard-Bold.woff

15053 ms

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16593 ms

Ico-total.svg

Ico-total.svg

16592 ms

Ico-close.svg

Ico-close.svg

16590 ms

ico_zzim_go.png

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16539 ms

ico_fa_ds.png

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17088 ms

more.png

more.png

17095 ms

Ico-search.svg

Ico-search.svg

17091 ms

arrow_down.gif

arrow_down.gif

17092 ms

modules.4d9dd1518dc89987e57a.js

modules.4d9dd1518dc89987e57a.js

10177 ms

ico_relate.png

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17070 ms

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13486 ms

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14057 ms

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14056 ms

ico_cl.png

ico_cl.png

14065 ms

logo._footer.svg

logo._footer.svg

13054 ms

bar1x10.gif

bar1x10.gif

14037 ms

analytics.js

analytics.js

4878 ms

collect

collect

34 ms

collect

collect

3241 ms

js

js

1536 ms

zrt_lookup.html

zrt_lookup.html

1560 ms

ads

ads

3051 ms

ga-audiences

ga-audiences

3041 ms

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5466 ms

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5264 ms

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5285 ms

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60 ms

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3777 ms

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3604 ms

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3300 ms

Accessibility Review

dongascience.com accessibility score

94

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Best Practices

dongascience.com best practices score

50

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

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

dongascience.com SEO score

85

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

Page is blocked from indexing

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 Dongascience.com 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 Dongascience.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

dongascience.com

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