Access vuahaisan.net.

name

value

score

weighting

FCP (First Contentful Paint)

Value9.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.6 s

0/100

25%

SI (Speed Index)

Value16.7 s

0/100

10%

TBT (Total Blocking Time)

Value550 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value15.4 s

7/100

10%

vuahaisan.net

824 ms

vuahaisan.net

1030 ms

main.css

230 ms

menu.css

480 ms

coin-slider-styles.css

707 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 74% of them (54 requests) were addressed to the original Vuahaisan.net, 8% (6 requests) were made to Apis.google.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Vuahaisan.net.

Content Size

2.2 MB

After Optimization

2.1 MB

In fact, the total size of Vuahaisan.net main page is 2.2 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 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 44.6 kB

Original 55.6 kB
After minification 53.6 kB
After compression 11.0 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 44.6 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 116.5 kB

Original 1.8 MB
After minification 1.6 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. Vuahaisan images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 4.6 kB

Original 415.7 kB
After minification 415.7 kB
After compression 411.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-16%

Potential reduce by 1.0 kB

Original 6.2 kB
After minification 6.2 kB
After compression 5.2 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. Vuahaisan.net needs all CSS files to be minified and compressed as it can save up to 1.0 kB or 16% of the original size.

Requests Now

After Optimization

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vuahaisan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve keyboard navigation in your application.

High

[accesskey] values are not unique

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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 Vuahaisan.net 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 Vuahaisan.net 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

vuahaisan.net

Open Graph description is not detected on the main page of Vuahaisan. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

vuahaisan.net

vuahaisan.net

main.css

menu.css

coin-slider-styles.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

vuahaisan.net

vuahaisan.net

main.css

menu.css

coin-slider-styles.css

colorbox.css

jquery.js

jquery.min.js

jquery.colorbox.js

coin-slider.js

widgets.js

in.js

backgourd.jpg

logo.png

btn-search.jpg

hotline.png

free-ship.jpg

baner-04.gif

Banner-Slide-02.jpg

Banner-Slide-03.jpg

banner-right-1.jpg

LeftBanner2%20(200%20x%20150).jpg

z3852727937067_485fe444229fb3ca3a01bb62b1fcbee9.jpg

z3852728060943_263dee922b706070cd9bb5daaff6935c.jpg

z3852728082880_c49f74596fc6f3f2642281cbf1be6f8a.jpg

cha-gio-tom.jpg

Kho-ca-du-2.jpg

Kho-ca-du-1.jpg

z3852728127530_b3b963997fe39d521914e1b68b4a6fee.jpg

z3852728027676_c46dacd3819d380390f0178b65df74a7.jpg

z3852751446761_49a9fa53452028f4eeeac171a242ac2d.jpg

Kho-ca-dua-1.jpg

Kho-Ca-Chi-Vang-01.JPG

Muc-1-nang-loai%201.jpg

Ca-dua-1-nang-loai-1.jpg

Muc-1-nang-loai%202.jpg

muc-deo.gif

cha-ca-thu-nguyen-chat.jpg

cha-lua-02.jpg

Kho-ca-duoi.jpg

lap-xuong-tuoi-go-cong.jpg

TomCuaGhe.jpg

happy-new-year-replace-concept-sea-beach.jpg

TomSu.jpg