Tools & Wizards About Us
jacecn.com screenshot

Report Summary

  • 0

    Performance

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

jacecn.com

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Page Load Speed

5.9 sec in total

First Response

227 ms

Resources Loaded

5.4 sec

Page Rendered

301 ms

jacecn.com screenshot

About Website

Click here to check amazing Jacecn content. Otherwise, check out these important facts you probably never knew about jacecn.com

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Key Findings

We analyzed Jacecn.com page load time and found that the first response time was 227 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

jacecn.com performance score

0

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0

0/100

10%

LCP (Largest Contentful Paint)

Value0

0/100

25%

SI (Speed Index)

Value0

0/100

10%

TBT (Total Blocking Time)

Value0

0/100

30%

CLS (Cumulative Layout Shift)

Value0.026

100/100

15%

TTI (Time to Interactive)

Value0

0/100

10%

Network Requests Diagram

jacecn.com

227 ms

index.css

94 ms

bo.js

178 ms

imgscroll.js

180 ms

17464002.js

4212 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 97% of them (38 requests) were addressed to the original Jacecn.com, 3% (1 request) were made to Js.users.51.la. The less responsive or slowest element that took the longest time to load (4.2 sec) relates to the external source Js.users.51.la.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.2 kB (20%)

Content Size

246.5 kB

After Optimization

196.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jacecn.com main page is 246.5 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. 20% of websites need less resources to load. Images take 221.8 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 10.2 kB

  • Original 13.6 kB
  • After minification 12.7 kB
  • After compression 3.4 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 10.2 kB or 75% of the original size.

Image Optimization

-14%

Potential reduce by 31.7 kB

  • Original 221.8 kB
  • After minification 190.2 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. Obviously, Jacecn needs image optimization as it can save up to 31.7 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 1.5 kB

  • Original 2.4 kB
  • After minification 2.4 kB
  • After compression 946 B

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 1.5 kB or 61% of the original size.

CSS Optimization

-80%

Potential reduce by 6.9 kB

  • Original 8.7 kB
  • After minification 7.8 kB
  • After compression 1.7 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. Jacecn.com needs all CSS files to be minified and compressed as it can save up to 6.9 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (25%)

Requests Now

36

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jacecn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

jacecn.com

jacecn.com

227 ms

index.css

index.css

94 ms

bo.js

bo.js

178 ms

imgscroll.js

imgscroll.js

180 ms

17464002.js

17464002.js

4212 ms

topbg.jpg

topbg.jpg

88 ms

logo.jpg

logo.jpg

172 ms

navbbg.jpg

navbbg.jpg

92 ms

navleft.jpg

navleft.jpg

158 ms

navline.jpg

navline.jpg

171 ms

navright.jpg

navright.jpg

170 ms

pro_top.jpg

pro_top.jpg

170 ms

pro_tit.jpg

pro_tit.jpg

452 ms

pro_dom.jpg

pro_dom.jpg

239 ms

contit.jpg

contit.jpg

255 ms

online.jpg

online.jpg

254 ms

kf.jpg

kf.jpg

254 ms

ab_top.jpg

ab_top.jpg

255 ms

ab_tit.jpg

ab_tit.jpg

319 ms

img.jpg

img.jpg

337 ms

ab_bom.jpg

ab_bom.jpg

337 ms

new_top.jpg

new_top.jpg

335 ms

newtit.jpg

newtit.jpg

615 ms

new_bom.jpg

new_bom.jpg

400 ms

guidetit.jpg

guidetit.jpg

507 ms

rprotop.jpg

rprotop.jpg

419 ms

rprotit.jpg

rprotit.jpg

697 ms

1_032GSJLK7.jpg

1_032GSJLK7.jpg

482 ms

rprobom.jpg

rprobom.jpg

505 ms

navbg.jpg

navbg.jpg

514 ms

navbombg.jpg

navbombg.jpg

548 ms

gbg.jpg

gbg.jpg

530 ms

pro_bg.jpg

pro_bg.jpg

529 ms

phone.jpg

phone.jpg

549 ms

ab_bg.jpg

ab_bg.jpg

583 ms

newbg.jpg

newbg.jpg

610 ms

d1.jpg

d1.jpg

610 ms

rprobg.jpg

rprobg.jpg

629 ms

bombg.jpg

bombg.jpg

621 ms

Accessibility Review

jacecn.com accessibility score

45

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

<frame> or <iframe> elements do not have a title

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

jacecn.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Page has valid source maps

SEO Factors

jacecn.com SEO score

100

Search Engine Optimization Advices

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jacecn.com 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) and no language is claimed in <html> or <meta> tags either. Our system also found out that Jacecn.com main page’s claimed encoding is gb2312. 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

jacecn.com

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