Report Summary

  • 4

    Performance

    Renders faster than
    20% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

kaas.or.kr

(사)한국아마추어천문학회

Page Load Speed

12.5 sec in total

First Response

545 ms

Resources Loaded

11.8 sec

Page Rendered

176 ms

kaas.or.kr screenshot

About Website

Visit kaas.or.kr now to see the best up-to-date Kaas content and also check out these interesting facts you probably never knew about kaas.or.kr

(사)한국아마추어천문학회 | 전국적인 아마추어의 보급 및 교육과 교류를 목적으로 하고 있습니다.

Visit kaas.or.kr

Key Findings

We analyzed Kaas.or.kr page load time and found that the first response time was 545 ms and then it took 12 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

kaas.or.kr performance score

4

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value16.5 s

0/100

25%

SI (Speed Index)

Value24.2 s

0/100

10%

TBT (Total Blocking Time)

Value1,920 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.701

7/100

15%

TTI (Time to Interactive)

Value35.0 s

0/100

10%

Network Requests Diagram

kaas.or.kr

545 ms

kaas.or.kr

704 ms

www.kaas.or.kr

744 ms

default.css

177 ms

jquery.bxslider.min.css

358 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 70% of them (55 requests) were addressed to the original Kaas.or.kr, 18% (14 requests) were made to Youtube.com and 5% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (8.6 sec) belongs to the original domain Kaas.or.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 430.7 kB (8%)

Content Size

5.7 MB

After Optimization

5.2 MB

In fact, the total size of Kaas.or.kr main page is 5.7 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 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 47.6 kB

  • Original 59.9 kB
  • After minification 55.0 kB
  • After compression 12.3 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 47.6 kB or 79% of the original size.

Image Optimization

-7%

Potential reduce by 366.4 kB

  • Original 5.3 MB
  • After minification 4.9 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. Kaas images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 12.3 kB

  • Original 226.7 kB
  • After minification 226.7 kB
  • After compression 214.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-5%

Potential reduce by 4.4 kB

  • Original 92.8 kB
  • After minification 92.8 kB
  • After compression 88.4 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. Kaas.or.kr has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 27 (38%)

Requests Now

71

After Optimization

44

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kaas. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kaas.or.kr accessibility score

93

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.

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

kaas.or.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

kaas.or.kr SEO score

92

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