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jamkor.co.kr screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

jamkor.co.kr

RCIED Vehicle Jammers – No Sound and No Heat ! WW 1st Vehicle Jammer Main -

Page Load Speed

5.7 sec in total

First Response

1.2 sec

Resources Loaded

4.4 sec

Page Rendered

191 ms

jamkor.co.kr screenshot

About Website

Welcome to jamkor.co.kr homepage info - get ready to check Jamkor best content right away, or after learning these important things about jamkor.co.kr

We have designed and manufactured a wide variety of jamming solutions with an objective to offer a more advanced digital jamming machine to combat the..

Visit jamkor.co.kr

Key Findings

We analyzed Jamkor.co.kr page load time and found that the first response time was 1.2 sec and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

jamkor.co.kr performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value11.8 s

0/100

25%

SI (Speed Index)

Value11.2 s

5/100

10%

TBT (Total Blocking Time)

Value180 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.661

8/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

jamkor.co.kr

1195 ms

language-selector.css

385 ms

prettyPhoto.css

577 ms

wp-video-lightbox.css

386 ms

bbpress.css

394 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 80% of them (49 requests) were addressed to the original Jamkor.co.kr, 8% (5 requests) were made to Google-analytics.com and 5% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Jamkor.co.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 608.3 kB (26%)

Content Size

2.3 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jamkor.co.kr main page is 2.3 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. 50% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 18.6 kB

  • Original 24.7 kB
  • After minification 23.9 kB
  • After compression 6.2 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. 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 18.6 kB or 75% of the original size.

Image Optimization

-1%

Potential reduce by 13.7 kB

  • Original 1.5 MB
  • After minification 1.5 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. Jamkor images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 270.2 kB

  • Original 403.4 kB
  • After minification 334.2 kB
  • After compression 133.3 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 270.2 kB or 67% of the original size.

CSS Optimization

-86%

Potential reduce by 305.9 kB

  • Original 354.3 kB
  • After minification 300.2 kB
  • After compression 48.4 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. Jamkor.co.kr needs all CSS files to be minified and compressed as it can save up to 305.9 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 47 (82%)

Requests Now

57

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jamkor. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 24 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jamkor.co.kr

jamkor.co.kr

1195 ms

language-selector.css

language-selector.css

385 ms

prettyPhoto.css

prettyPhoto.css

577 ms

wp-video-lightbox.css

wp-video-lightbox.css

386 ms

bbpress.css

bbpress.css

394 ms

styles.css

styles.css

399 ms

prettyPhoto.css

prettyPhoto.css

596 ms

resume-styles.css

resume-styles.css

577 ms

navigation.css

navigation.css

577 ms

cms-navigation-base.css

cms-navigation-base.css

592 ms

cms-navigation.css

cms-navigation.css

597 ms

style.css

style.css

767 ms

css

css

24 ms

css

css

41 ms

css

css

43 ms

superfish.css

superfish.css

767 ms

component.css

component.css

958 ms

font-awesome.min.css

font-awesome.min.css

791 ms

jquery.fancybox.css

jquery.fancybox.css

792 ms

flexslider.css

flexslider.css

794 ms

style-custom.css

style-custom.css

1148 ms

masterslider.main.css

masterslider.main.css

1341 ms

custom.css

custom.css

990 ms

wpgmza_style.css

wpgmza_style.css

990 ms

jquery.js

jquery.js

1392 ms

jquery-migrate.min.js

jquery-migrate.min.js

1150 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

1189 ms

video-lightbox.js

video-lightbox.js

1189 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

1339 ms

front.js

front.js

1343 ms

jquery.multi-file.js

jquery.multi-file.js

1388 ms

editor.js

editor.js

1200 ms

jquery.form.min.js

jquery.form.min.js

1343 ms

scripts.js

scripts.js

1343 ms

superfish.js

superfish.js

1344 ms

hoverIntent.min.js

hoverIntent.min.js

1397 ms

modernizr.custom.js

modernizr.custom.js

1398 ms

jquery.dlmenu.js

jquery.dlmenu.js

1401 ms

jquery.easing.js

jquery.easing.js

1534 ms

jquery.fancybox.pack.js

jquery.fancybox.pack.js

1534 ms

jquery.fancybox-media.js

jquery.fancybox-media.js

1346 ms

jquery.fancybox-thumbs.js

jquery.fancybox-thumbs.js

1406 ms

jquery.flexslider.js

jquery.flexslider.js

1397 ms

gdlr-script.js

gdlr-script.js

1398 ms

sitepress.js

sitepress.js

1346 ms

style.css

style.css

1345 ms

ga.js

ga.js

103 ms

analytics.js

analytics.js

102 ms

jammer_logo_color_b.png

jammer_logo_color_b.png

211 ms

B11.png

B11.png

1207 ms

20220324_152623.jpg

20220324_152623.jpg

384 ms

a20.jpeg

a20.jpeg

386 ms

jammer_logo_footer_left.png

jammer_logo_footer_left.png

210 ms

font

font

36 ms

font

font

124 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

576 ms

__utm.gif

__utm.gif

19 ms

linkid.js

linkid.js

10 ms

collect

collect

35 ms

collect

collect

32 ms

js

js

72 ms

Accessibility Review

jamkor.co.kr accessibility score

79

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

jamkor.co.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jamkor.co.kr SEO score

93

Search Engine Optimization Advices

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 uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jamkor.co.kr can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Jamkor.co.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

jamkor.co.kr

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