Report Summary

  • 57

    Performance

    Renders faster than
    74% of other websites

  • 46

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

ttbd.gov.vn

TRUNG TAM BOI DUONG DAI BIEU DAN CU>Default

Page Load Speed

67.8 sec in total

First Response

12.2 sec

Resources Loaded

55.1 sec

Page Rendered

485 ms

ttbd.gov.vn screenshot

About Website

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

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Key Findings

We analyzed Ttbd.gov.vn page load time and found that the first response time was 12.2 sec and then it took 55.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 29 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

ttbd.gov.vn performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value9.5 s

11/100

10%

TBT (Total Blocking Time)

Value290 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0.058

98/100

15%

TTI (Time to Interactive)

Value6.1 s

64/100

10%

Network Requests Diagram

ttbd.gov.vn

12211 ms

Default.aspx

2580 ms

Default.css

2242 ms

contentslider.css

663 ms

facebox.css

671 ms

Our browser made a total of 98 requests to load all elements on the main page. We found that all of those requests were addressed to Ttbd.gov.vn and no external sources were called. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Ttbd.gov.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 664.5 kB (5%)

Content Size

13.3 MB

After Optimization

12.6 MB

In fact, the total size of Ttbd.gov.vn main page is 13.3 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 12.6 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 122.1 kB

  • Original 152.6 kB
  • After minification 137.0 kB
  • After compression 30.4 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 122.1 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 79.8 kB

  • Original 12.6 MB
  • After minification 12.5 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. Ttbd images are well optimized though.

JavaScript Optimization

-84%

Potential reduce by 398.3 kB

  • Original 473.2 kB
  • After minification 331.5 kB
  • After compression 74.9 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 398.3 kB or 84% of the original size.

CSS Optimization

-88%

Potential reduce by 64.2 kB

  • Original 72.9 kB
  • After minification 71.9 kB
  • After compression 8.6 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. Ttbd.gov.vn needs all CSS files to be minified and compressed as it can save up to 64.2 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (12%)

Requests Now

66

After Optimization

58

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ttbd. 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 as a result speed up the page load time.

Accessibility Review

ttbd.gov.vn accessibility score

46

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

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

ttbd.gov.vn best practices score

50

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

High

Browser errors were logged to the console

SEO Factors

ttbd.gov.vn SEO score

50

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

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 Ttbd.gov.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 Ttbd.gov.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 Ttbd. 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: