Access duo.co.kr. 듀오 한국대표 결혼정보회사 1577-8333

duo.co.kr screenshot

1

Performance

Renders faster than
19% of other websites
68

Accessibility

Visual factors better than
that of 33% of websites
58

Best Practices

More advanced features
available than in
20% of websites
78

SEO

Google-friendlier than
39% of websites

First Response

2.6 sec

Resources Loaded

12.7 sec

Page Rendered

991 ms

duo.co.kr screenshot

About Website

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

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Key Findings

We analyzed Duo.co.kr page load time and found that the first response time was 2.6 sec and then it took 13.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value9.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.4 s

0/100

25%

SI (Speed Index)

Value18.0 s

0/100

10%

TBT (Total Blocking Time)

Value3,870 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value1.001

2/100

15%

TTI (Time to Interactive)

Value35.2 s

0/100

10%

www.duo.co.kr

2634 ms

jquery-1.12.4.js

659 ms

fullpage.js

1046 ms

swiper.js

1099 ms

inc_header.js

883 ms

Our browser made a total of 303 requests to load all elements on the main page. We found that 49% of them (148 requests) were addressed to the original Duo.co.kr, 30% (90 requests) were made to Common.duo.co.kr and 4% (11 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (4 sec) relates to the external source Common.duo.co.kr.

Content Size

5.7 MB

After Optimization

5.4 MB

In fact, the total size of Duo.co.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 5.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 99.5 kB

Original 117.7 kB
After minification 77.1 kB
After compression 18.2 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 40.6 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 99.5 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 108.4 kB

Original 5.2 MB
After minification 5.1 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. Duo images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 39.8 kB

Original 381.2 kB
After minification 381.2 kB
After compression 341.5 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. This website has mostly compressed JavaScripts.

Requests Now

283

After Optimization

223

The browser has sent 283 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

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

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

High

Links are not crawlable

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 uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

KO
Language Claimed

KO
Encoding

EUC-KR

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Duo.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 Duo.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

duo.co.kr

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