Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

coccoc.vn

Trình duyệt Cốc Cốc | Trình duyệt web dành cho người Việt

Page Load Speed

5.5 sec in total

First Response

1.3 sec

Resources Loaded

4 sec

Page Rendered

150 ms

coccoc.vn screenshot

About Website

Welcome to coccoc.vn homepage info - get ready to check Coccoc best content for Vietnam right away, or after learning these important things about coccoc.vn

Trình duyệt Cốc Cốc giúp lướt web nhanh, chặn quảng cáo hiệu quả, tải video dễ dàng. Tải Cốc Cốc ngay cho Windows, Mac, iOS, và Android.

Visit coccoc.vn

Key Findings

We analyzed Coccoc.vn page load time and found that the first response time was 1.3 sec and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

coccoc.vn performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value14.1 s

1/100

10%

TBT (Total Blocking Time)

Value780 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value19.1 s

2/100

10%

Network Requests Diagram

coccoc.vn

1298 ms

fbevents.js

35 ms

browser-min.css

723 ms

gb_flag_36.png

730 ms

18 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 36% of them (19 requests) were addressed to the original Coccoc.vn, 13% (7 requests) were made to Fonts.gstatic.com and 6% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Coccoc.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 600.6 kB (57%)

Content Size

1.1 MB

After Optimization

451.3 kB

In fact, the total size of Coccoc.vn main page is 1.1 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. 30% of websites need less resources to load. Javascripts take 503.0 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 38.5 kB

  • Original 46.2 kB
  • After minification 23.3 kB
  • After compression 7.8 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 22.9 kB, which is 50% 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 38.5 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 1.4 kB

  • Original 216.1 kB
  • After minification 214.8 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. Coccoc images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 324.1 kB

  • Original 503.0 kB
  • After minification 501.2 kB
  • After compression 178.9 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 324.1 kB or 64% of the original size.

CSS Optimization

-83%

Potential reduce by 236.7 kB

  • Original 286.6 kB
  • After minification 286.2 kB
  • After compression 49.9 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. Coccoc.vn needs all CSS files to be minified and compressed as it can save up to 236.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (47%)

Requests Now

43

After Optimization

23

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coccoc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

coccoc.vn accessibility score

85

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

button, link, and menuitem elements do not have accessible names.

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

coccoc.vn 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

coccoc.vn SEO score

99

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    VI

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coccoc.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese 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 Coccoc.vn 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

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