Tools & Wizards About Us

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 55

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 57

    SEO

    Google-friendlier than
    20% of websites

tvu.tailieu.vn

Danh mục tài liệu - Thư viện số Trường Đại học Trà Vinh

Page Load Speed

6.7 sec in total

First Response

2 sec

Resources Loaded

4.5 sec

Page Rendered

190 ms

About Website

Click here to check amazing Tvu Tailieu content for Vietnam. Otherwise, check out these important facts you probably never knew about tvu.tailieu.vn

Hàng ngàn tài liệu, luận văn, bài giảng, giáo trình thuộc danh mục hay và cập nhật - Tại thư viện số Trường Đại học Trà Vinh

Visit tvu.tailieu.vn

Key Findings

We analyzed Tvu.tailieu.vn page load time and found that the first response time was 2 sec and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

tvu.tailieu.vn performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value8.4 s

38/100

10%

Network Requests Diagram

tvu.tailieu.vn

2015 ms

css

22 ms

generalnew.css

476 ms

tp_3col_defaultnew.css

479 ms

schoolnew.css

480 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 85% of them (39 requests) were addressed to the original Tvu.tailieu.vn, 9% (4 requests) were made to Fonts.gstatic.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Tvu.tailieu.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 250.2 kB (38%)

Content Size

666.7 kB

After Optimization

416.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tvu.tailieu.vn main page is 666.7 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. 40% of websites need less resources to load. Images take 308.9 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 80.0 kB

  • Original 95.3 kB
  • After minification 83.0 kB
  • After compression 15.3 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 12.3 kB, which is 13% 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 80.0 kB or 84% of the original size.

Image Optimization

-2%

Potential reduce by 6.0 kB

  • Original 308.9 kB
  • After minification 302.9 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. Tvu Tailieu images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 163.8 kB

  • Original 249.4 kB
  • After minification 249.4 kB
  • After compression 85.6 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 163.8 kB or 66% of the original size.

CSS Optimization

-3%

Potential reduce by 439 B

  • Original 13.2 kB
  • After minification 13.2 kB
  • After compression 12.7 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. Tvu.tailieu.vn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 15 (37%)

Requests Now

41

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tvu Tailieu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

tvu.tailieu.vn accessibility score

55

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.

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

tvu.tailieu.vn best practices score

58

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

tvu.tailieu.vn SEO score

57

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

High

Page is blocked from indexing

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

    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 Tvu.tailieu.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 Tvu.tailieu.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 Tvu Tailieu. 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: