Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    47% of websites

  • 58

    SEO

    Google-friendlier than
    30% of websites

rap.vn

Rap.vn Community

Page Load Speed

7.6 sec in total

First Response

422 ms

Resources Loaded

3.4 sec

Page Rendered

3.9 sec

rap.vn screenshot

About Website

Visit rap.vn now to see the best up-to-date Rap content for Vietnam and also check out these interesting facts you probably never knew about rap.vn

Visit rap.vn

Key Findings

We analyzed Rap.vn page load time and found that the first response time was 422 ms 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. This domain responded with an error, which can significantly jeopardize Rap.vn rating and web reputation

Performance Metrics

rap.vn performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.9 s

100/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value2.7 s

97/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.06

98/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

rap.vn

422 ms

cf.errors.css

96 ms

zepto.min.js

250 ms

cf.common.js

518 ms

error_icons.png

1394 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that all of those requests were addressed to Rap.vn and no external sources were called. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Rap.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 49.9 kB (63%)

Content Size

79.6 kB

After Optimization

29.7 kB

In fact, the total size of Rap.vn main page is 79.6 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. 15% of websites need less resources to load. Javascripts take 29.4 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 3.5 kB

  • Original 5.1 kB
  • After minification 5.1 kB
  • After compression 1.6 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 3.5 kB or 69% of the original size.

Image Optimization

-25%

Potential reduce by 4.2 kB

  • Original 16.8 kB
  • After minification 12.6 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, Rap needs image optimization as it can save up to 4.2 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 18.7 kB

  • Original 29.4 kB
  • After minification 28.3 kB
  • After compression 10.7 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 18.7 kB or 64% of the original size.

CSS Optimization

-83%

Potential reduce by 23.6 kB

  • Original 28.4 kB
  • After minification 28.4 kB
  • After compression 4.8 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. Rap.vn needs all CSS files to be minified and compressed as it can save up to 23.6 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rap. According to our analytics all requests are already optimized.

Accessibility Review

rap.vn accessibility score

68

Accessibility Issues

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

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

Best Practices

rap.vn 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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

rap.vn SEO score

58

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rap.vn 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 English. Our system also found out that Rap.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 description is not detected on the main page of Rap. 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: