Tools & Wizards About Us

Report Summary

  • 0

    Performance

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

dalinhvuc.com

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Page Load Speed

7.4 sec in total

First Response

640 ms

Resources Loaded

6.2 sec

Page Rendered

566 ms

About Website

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Visit dalinhvuc.com

Key Findings

We analyzed Dalinhvuc.com page load time and found that the first response time was 640 ms and then it took 6.7 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

dalinhvuc.com performance score

0

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0

0/100

10%

LCP (Largest Contentful Paint)

Value0

0/100

25%

SI (Speed Index)

Value0

0/100

10%

TBT (Total Blocking Time)

Value0

0/100

30%

CLS (Cumulative Layout Shift)

Value1.593

0/100

15%

TTI (Time to Interactive)

Value0

0/100

10%

Network Requests Diagram

dalinhvuc.com

640 ms

style.css

770 ms

common.js

732 ms

index.js

487 ms

transport.js

768 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 78% of them (54 requests) were addressed to the original Dalinhvuc.com, 4% (3 requests) were made to S7.addthis.com and 4% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (4.7 sec) belongs to the original domain Dalinhvuc.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 919.1 kB (20%)

Content Size

4.7 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dalinhvuc.com main page is 4.7 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. 55% of websites need less resources to load. Images take 3.6 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 64.2 kB

  • Original 86.7 kB
  • After minification 84.7 kB
  • After compression 22.5 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 64.2 kB or 74% of the original size.

Image Optimization

-4%

Potential reduce by 140.3 kB

  • Original 3.6 MB
  • After minification 3.4 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. Dalinhvuc images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 483.3 kB

  • Original 744.8 kB
  • After minification 717.1 kB
  • After compression 261.5 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 483.3 kB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 231.2 kB

  • Original 279.4 kB
  • After minification 275.0 kB
  • After compression 48.1 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. Dalinhvuc.com needs all CSS files to be minified and compressed as it can save up to 231.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (21%)

Requests Now

66

After Optimization

52

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dalinhvuc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

dalinhvuc.com accessibility score

45

Accessibility Issues

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

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

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

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

dalinhvuc.com 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

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

dalinhvuc.com SEO score

100

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dalinhvuc.com 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) and no language is claimed in <html> or <meta> tags either. Our system also found out that Dalinhvuc.com 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 Dalinhvuc. 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: