Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

osung.hs.kr

누리집

Page Load Speed

30.5 sec in total

First Response

1.2 sec

Resources Loaded

28.6 sec

Page Rendered

702 ms

osung.hs.kr screenshot

About Website

Visit osung.hs.kr now to see the best up-to-date Osung Hs content and also check out these interesting facts you probably never knew about osung.hs.kr

오성고등학교

Visit osung.hs.kr

Key Findings

We analyzed Osung.hs.kr page load time and found that the first response time was 1.2 sec and then it took 29.3 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

osung.hs.kr performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

4/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.151

75/100

15%

TTI (Time to Interactive)

Value6.0 s

65/100

10%

Network Requests Diagram

osung.hs.kr

1194 ms

index.do

3397 ms

layout.js

1274 ms

jquery-1.7.1.min.js

2608 ms

jcarousellite_1.0.1.js

1826 ms

Our browser made a total of 114 requests to load all elements on the main page. We found that 98% of them (112 requests) were addressed to the original Osung.hs.kr, 2% (2 requests) were made to Crezone.net. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain Osung.hs.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 580.8 kB (50%)

Content Size

1.2 MB

After Optimization

587.5 kB

In fact, the total size of Osung.hs.kr main page is 1.2 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. 40% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 86.5 kB

  • Original 99.9 kB
  • After minification 63.8 kB
  • After compression 13.4 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 36.1 kB, which is 36% 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 86.5 kB or 87% of the original size.

Image Optimization

-45%

Potential reduce by 472.4 kB

  • Original 1.0 MB
  • After minification 568.4 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, Osung Hs needs image optimization as it can save up to 472.4 kB or 45% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-79%

Potential reduce by 22.0 kB

  • Original 27.7 kB
  • After minification 24.5 kB
  • After compression 5.8 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. Osung.hs.kr needs all CSS files to be minified and compressed as it can save up to 22.0 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (14%)

Requests Now

109

After Optimization

94

The browser has sent 109 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osung Hs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

osung.hs.kr accessibility score

59

Accessibility Issues

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

osung.hs.kr best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

osung.hs.kr SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    KO

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Osung.hs.kr 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), while the claimed language is Korean. Our system also found out that Osung.hs.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 Osung Hs. 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: