Tools & Wizards About Us

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

ctd.org.vn

TƯ VẤN TÂM LÝ | TIỀN HÔN NHÂN | KỸ NĂNG SỐNG | ĐÀO TẠO KỸ NĂNG | HÔN NHÂN | GIA ĐÌNH | GIÁ TRỊ SỐNG | HỖ TRỢ TÂM LÝ

Page Load Speed

13.5 sec in total

First Response

1.6 sec

Resources Loaded

11.6 sec

Page Rendered

260 ms

About Website

Visit ctd.org.vn now to see the best up-to-date Ctd content and also check out these interesting facts you probably never knew about ctd.org.vn

CTD hoạt động vì sự khỏe mạnh tinh thần, xã hội cho mọi người. CTD có nhiều kinh nghiệm trong việc phát triển và tổ chức các chương trình đào tạo phù hợp với từng nhóm đối tượng. Đào tạo kỹ năng sống,...

Visit ctd.org.vn

Key Findings

We analyzed Ctd.org.vn page load time and found that the first response time was 1.6 sec and then it took 11.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

ctd.org.vn performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value20.6 s

0/100

10%

TBT (Total Blocking Time)

Value3,720 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.138

79/100

15%

TTI (Time to Interactive)

Value21.5 s

1/100

10%

Network Requests Diagram

ctd.org.vn

1619 ms

default.aspx

452 ms

sitestyle.css

294 ms

slideshow.css

537 ms

video.css

516 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 99% of them (74 requests) were addressed to the original Ctd.org.vn, 1% (1 request) were made to Opi.yahoo.com. The less responsive or slowest element that took the longest time to load (8.4 sec) belongs to the original domain Ctd.org.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 209.9 kB (14%)

Content Size

1.5 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ctd.org.vn main page is 1.5 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. 40% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 33.3 kB

  • Original 44.6 kB
  • After minification 43.2 kB
  • After compression 11.2 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 33.3 kB or 75% of the original size.

Image Optimization

-11%

Potential reduce by 153.2 kB

  • Original 1.3 MB
  • After minification 1.2 MB

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, Ctd needs image optimization as it can save up to 153.2 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-31%

Potential reduce by 17.1 kB

  • Original 54.7 kB
  • After minification 53.3 kB
  • After compression 37.7 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 17.1 kB or 31% of the original size.

CSS Optimization

-46%

Potential reduce by 6.2 kB

  • Original 13.5 kB
  • After minification 13.5 kB
  • After compression 7.3 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. Ctd.org.vn needs all CSS files to be minified and compressed as it can save up to 6.2 kB or 46% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (37%)

Requests Now

62

After Optimization

39

  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ctd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 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

ctd.org.vn accessibility score

80

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

ARIA progressbar elements do not have accessible names.

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

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

ctd.org.vn best practices score

58

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

SEO Factors

ctd.org.vn SEO score

54

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

High

Document uses plugins

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 Ctd.org.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 Ctd.org.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 Ctd. 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: