Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

dhtsound.com

DHTsound 진공관 오디오 종합 부품 쇼핑몰

Page Load Speed

8.8 sec in total

First Response

1.6 sec

Resources Loaded

6.9 sec

Page Rendered

297 ms

dhtsound.com screenshot

About Website

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

Visit dhtsound.com

Key Findings

We analyzed Dhtsound.com page load time and found that the first response time was 1.6 sec and then it took 7.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

dhtsound.com performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value17.6 s

0/100

25%

SI (Speed Index)

Value22.4 s

0/100

10%

TBT (Total Blocking Time)

Value2,840 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.545

13/100

15%

TTI (Time to Interactive)

Value13.3 s

12/100

10%

Network Requests Diagram

board.php

1639 ms

main_script.js

994 ms

create_iwindow.js

593 ms

shop_default.js

989 ms

shop_public.js

398 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that all of those requests were addressed to Dhtsound.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Dhtsound.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 240.5 kB (27%)

Content Size

876.0 kB

After Optimization

635.5 kB

In fact, the total size of Dhtsound.com main page is 876.0 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 651.9 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 124.4 kB

  • Original 144.2 kB
  • After minification 126.6 kB
  • After compression 19.8 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 17.6 kB, which is 12% 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 124.4 kB or 86% of the original size.

Image Optimization

-8%

Potential reduce by 53.5 kB

  • Original 651.9 kB
  • After minification 598.4 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. DHTsound images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 61.9 kB

  • Original 79.1 kB
  • After minification 63.3 kB
  • After compression 17.2 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 61.9 kB or 78% of the original size.

CSS Optimization

-82%

Potential reduce by 623 B

  • Original 763 B
  • After minification 273 B
  • After compression 140 B

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. Dhtsound.com needs all CSS files to be minified and compressed as it can save up to 623 B or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 46 (38%)

Requests Now

122

After Optimization

76

The browser has sent 122 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DHTsound. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

dhtsound.com accessibility score

73

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

Buttons do not have an accessible name

High

Form elements do not have associated labels

High

Links do not have a discernible name

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.

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

dhtsound.com best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

dhtsound.com SEO score

84

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    KO

  • Language Claimed

    N/A

  • Encoding

    EUC-KR

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dhtsound.com can be misinterpreted by Google and other search engines. Our service has detected that Korean is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Dhtsound.com 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 DHTsound. 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: