Tools & Wizards About Us
cb21.net screenshot

Report Summary

  • 78

    Performance

    Renders faster than
    85% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

cb21.net

Page Load Speed

4.4 sec in total

First Response

1.6 sec

Resources Loaded

2.8 sec

Page Rendered

75 ms

cb21.net screenshot

About Website

Click here to check amazing Cb 21 content for South Korea. Otherwise, check out these important facts you probably never knew about cb21.net

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Key Findings

We analyzed Cb21.net page load time and found that the first response time was 1.6 sec and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

cb21.net performance score

78

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.147

77/100

15%

TTI (Time to Interactive)

Value3.0 s

95/100

10%

Network Requests Diagram

cb21.net

1566 ms

jquery-1.11.1.min.js

1193 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Cb21.net and no external sources were called. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Cb21.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 62.6 kB (65%)

Content Size

96.5 kB

After Optimization

33.9 kB

  • HTML
  • JavaScript

In fact, the total size of Cb21.net main page is 96.5 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 95.8 kB which makes up the majority of the site volume.

HTML Optimization

-42%

Potential reduce by 305 B

  • Original 728 B
  • After minification 719 B
  • After compression 423 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 305 B or 42% of the original size.

JavaScript Optimization

-65%

Potential reduce by 62.3 kB

  • Original 95.8 kB
  • After minification 95.8 kB
  • After compression 33.4 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 62.3 kB or 65% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

1

After Optimization

1

  • JavaScript

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cb 21. According to our analytics all requests are already optimized.

Network Requests Diagram

cb21.net

cb21.net

1566 ms

jquery-1.11.1.min.js

jquery-1.11.1.min.js

1193 ms

Accessibility Review

cb21.net accessibility score

78

Accessibility Issues

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

cb21.net best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

cb21.net SEO score

92

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

    KO

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cb21.net 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 Cb21.net 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

cb21.net

Open Graph description is not detected on the main page of Cb 21. 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: