Access .vn. - Accessify

Report Summary

• 15

  Performance

  Renders faster than 27% of other websites

• 88

  Accessibility

  Visual factors better than that of 68% of websites

• 67

  Best Practices

  More advanced features available than in 24% of websites

• 75

  SEO

  Google-friendlier than 32% of websites

sv.bdu.edu.vn

Page Load Speed

6.7 sec in total

First Response

780 ms

Resources Loaded

5.9 sec

Page Rendered

54 ms

About Website

Visit sv.bdu.edu.vn now to see the best up-to-date Sv Bdu content for Vietnam and also check out these interesting facts you probably never knew about sv.bdu.edu.vn

Visit sv.bdu.edu.vn

Key Findings

We analyzed Sv.bdu.edu.vn page load time and found that the first response time was 780 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

sv.bdu.edu.vn performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value24.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value32.9 s

0/100

25%

SI (Speed Index)

Value27.9 s

0/100

10%

TBT (Total Blocking Time)

Value4,450 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value31.6 s

0/100

10%

Network Requests Diagram

sv.bdu.edu.vn

780 ms

sv.bdu.edu.vn

1052 ms

popper.min.js

23 ms

bootstrap.min.css

27 ms

bootstrap.bundle.min.js

40 ms

View All Requests

Our browser made a total of 15 requests to load all elements on the main page. We found that 47% of them (7 requests) were addressed to the original Sv.bdu.edu.vn, 33% (5 requests) were made to Cdn.jsdelivr.net and 13% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Sv.bdu.edu.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.0 MB (74%)

Content Size

4.1 MB

After Optimization

1.1 MB

• HTML
• JavaScript
• CSS

In fact, the total size of Sv.bdu.edu.vn main page is 4.1 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. 50% of websites need less resources to load. Javascripts take 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 5.1 kB

• Original 8.3 kB
• After minification 8.1 kB
• After compression 3.2 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 5.1 kB or 61% of the original size.

JavaScript Optimization

-74%

Potential reduce by 2.8 MB

• Original 3.8 MB
• After minification 3.8 MB
• After compression 1.0 MB

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 2.8 MB or 74% of the original size.

CSS Optimization

-77%

Potential reduce by 190.4 kB

• Original 247.8 kB
• After minification 247.1 kB
• After compression 57.4 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. Sv.bdu.edu.vn needs all CSS files to be minified and compressed as it can save up to 190.4 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (85%)

Requests Now

13

After Optimization

2

• JavaScript
• CSS

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sv Bdu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sv.bdu.edu.vn

sv.bdu.edu.vn

780 ms

sv.bdu.edu.vn

sv.bdu.edu.vn

1052 ms

popper.min.js

popper.min.js

23 ms

bootstrap.min.css

bootstrap.min.css

27 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

40 ms

bootstrap.min.css

bootstrap.min.css

38 ms

apexcharts

apexcharts

52 ms

platform.js

platform.js

51 ms

runtime.56c27c3fc8563cb6.js

runtime.56c27c3fc8563cb6.js

275 ms

polyfills.0e6126b2e4b641ab.js

polyfills.0e6126b2e4b641ab.js

799 ms

scripts.829f76d2792c99a6.js

scripts.829f76d2792c99a6.js

2410 ms

main.755eacc2ee512a7e.js

main.755eacc2ee512a7e.js

2748 ms

css2

css2

33 ms

icon

icon

49 ms

styles.6e011302a2b7c069.css

styles.6e011302a2b7c069.css

1310 ms

Accessibility Review

sv.bdu.edu.vn accessibility score

88

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

Best Practices

sv.bdu.edu.vn best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

sv.bdu.edu.vn SEO score

75

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

  

  N/A

• Language Claimed

  

  VI

• Encoding

  UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sv.bdu.edu.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 Vietnamese. Our system also found out that Sv.bdu.edu.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

sv.bdu.edu.vn

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