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Report Summary

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.026

100/100

15%

TTI (Time to Interactive)

Value7.4 s

48/100

10%

nseoultower.co.kr

882 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Nseoultower.co.kr and no external sources were called. The less responsive or slowest element that took the longest time to load (882 ms) belongs to the original domain Nseoultower.co.kr.

Content Size

696.4 kB

After Optimization

525.1 kB

In fact, the total size of Nseoultower.co.kr main page is 696.4 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 451.8 kB which makes up the majority of the site volume.

HTML Optimization

-12%

Potential reduce by 20 B

Original 162 B
After minification 162 B
After compression 142 B

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 20 B or 12% of the original size.

Image Optimization

-2%

Potential reduce by 7.7 kB

Original 451.8 kB
After minification 444.0 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. Nseoultower images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 103.7 kB

Original 171.6 kB
After minification 168.6 kB
After compression 67.9 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 103.7 kB or 60% of the original size.

CSS Optimization

-82%

Potential reduce by 59.9 kB

Original 72.9 kB
After minification 63.3 kB
After compression 13.0 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. Nseoultower.co.kr needs all CSS files to be minified and compressed as it can save up to 59.9 kB or 82% of the original size.

Requests Now

After Optimization

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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/).

High

Document doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

N/A
Language Claimed

KO
Encoding

EUC-KR

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nseoultower.co.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 Nseoultower.co.kr main page’s claimed encoding is euc-kr. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Nseoultower. 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: