Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

dulichachau.com.vn

Du Lịch Á Châu

Page Load Speed

11 sec in total

First Response

2.9 sec

Resources Loaded

7.6 sec

Page Rendered

490 ms

dulichachau.com.vn screenshot

About Website

Welcome to dulichachau.com.vn homepage info - get ready to check Du Lichachau best content for Vietnam right away, or after learning these important things about dulichachau.com.vn

Visit dulichachau.com.vn

Key Findings

We analyzed Dulichachau.com.vn page load time and found that the first response time was 2.9 sec and then it took 8.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

dulichachau.com.vn performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value25.8 s

0/100

25%

SI (Speed Index)

Value13.6 s

2/100

10%

TBT (Total Blocking Time)

Value370 ms

70/100

30%

CLS (Cumulative Layout Shift)

Value0.411

24/100

15%

TTI (Time to Interactive)

Value16.8 s

5/100

10%

Network Requests Diagram

dulichachau.com.vn

2891 ms

fbevents.js

83 ms

analytics.js

43 ms

wp-emoji-release.min.js

257 ms

jquery.bxslider.css

702 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 86% of them (59 requests) were addressed to the original Dulichachau.com.vn, 9% (6 requests) were made to Fonts.googleapis.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Dulichachau.com.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (49%)

Content Size

2.9 MB

After Optimization

1.5 MB

In fact, the total size of Dulichachau.com.vn main page is 2.9 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. 60% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 40.1 kB

  • Original 50.8 kB
  • After minification 48.9 kB
  • After compression 10.7 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 40.1 kB or 79% of the original size.

Image Optimization

-6%

Potential reduce by 76.3 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. Du Lichachau images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 304.6 kB

  • Original 429.3 kB
  • After minification 379.4 kB
  • After compression 124.7 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 304.6 kB or 71% of the original size.

CSS Optimization

-88%

Potential reduce by 1.0 MB

  • Original 1.1 MB
  • After minification 987.6 kB
  • After compression 132.4 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. Dulichachau.com.vn needs all CSS files to be minified and compressed as it can save up to 1.0 MB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (63%)

Requests Now

67

After Optimization

25

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Du Lichachau. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dulichachau.com.vn accessibility score

49

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

ARIA toggle fields do not have accessible names

High

[aria-*] attributes do not have valid values

High

ARIA IDs are not unique

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

dulichachau.com.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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

dulichachau.com.vn SEO score

88

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

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

High

Tap targets are not sized appropriately

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 Dulichachau.com.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 Dulichachau.com.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 Du Lichachau. 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: