Access dvms.vn. Lập trình ứng dụng, lập trình ios, lập trình android, Ứng dụng mobile, viết ứng dụng mobile, viết ứn...

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value17.3 s

0/100

25%

SI (Speed Index)

Value15.5 s

0/100

10%

TBT (Total Blocking Time)

Value1,320 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.126

83/100

15%

TTI (Time to Interactive)

Value16.5 s

5/100

10%

dvms.vn

792 ms

dvms.vn

1067 ms

dvms.com.vn

2313 ms

font-awesome.min.css

528 ms

animate.min.css

787 ms

Our browser made a total of 142 requests to load all elements on the main page. We found that 1% of them (2 requests) were addressed to the original Dvms.vn, 68% (96 requests) were made to Dvms.com.vn and 13% (18 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (2.6 sec) relates to the external source Dvms.com.vn.

Content Size

3.7 MB

After Optimization

1.8 MB

In fact, the total size of Dvms.vn main page is 3.7 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 149.4 kB

Original 175.2 kB
After minification 136.6 kB
After compression 25.8 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. This page needs HTML code to be minified as it can gain 38.7 kB, which is 22% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 149.4 kB or 85% of the original size.

Image Optimization

-56%

Potential reduce by 1.7 MB

Original 3.1 MB
After minification 1.4 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. Obviously, Dvms needs image optimization as it can save up to 1.7 MB or 56% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-9%

Potential reduce by 33.4 kB

Original 360.0 kB
After minification 360.0 kB
After compression 326.6 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

-6%

Potential reduce by 6.5 kB

Original 100.6 kB
After minification 100.5 kB
After compression 94.1 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. Dvms.vn has all CSS files already compressed.

Requests Now

137

After Optimization

The browser has sent 137 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dvms. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 52 to 1 for JavaScripts and from 24 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

VI
Language Claimed

VI
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dvms.vn can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and it matches the claimed language. Our system also found out that Dvms.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

dvms.vn

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

Lập trình ứng dụng, lập trình ios, lập trình android, Ứng dụng mobile, viết ứng dụng mobile, viết ứng dụng ios, viết ứng dụng android, lập trình mạng ...

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

dvms.vn

dvms.vn

dvms.com.vn

font-awesome.min.css

animate.min.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

dvms.vn

dvms.vn

dvms.com.vn

font-awesome.min.css

animate.min.css

sppagebuilder.css

sppagecontainer.css

owl.carousel.css

owl.theme.css

owl.transitions.css

slide-animate.css

magnific-popup.css

mod_news_show_sp2.css

bootstrap.min.css

font-awesome.min.css

legacy.css

template.css

preset8.css

pagebuilder.css

frontend-edit.css

template.css

core.js

jquery.min.js

jquery-noconflict.js

jquery-migrate.min.js

jquery.parallax-1.1.3.js

sppagebuilder.js

owl.carousel.min.js

addon.slider.js

jquery.magnific-popup.min.js

nssp2.js

scroller.js

bootstrap.min.js

jquery.sticky.js

main.js

frontend-edit.js

js

gspeech.css

the-tooltip.css

jquery.min.js

widgets.js

styles.css

jquery-1.8.1.min.js