Access dieuhoatrungtamvrv.com. Điều hòa trung tâm | Hệ thống VRV

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value9,760 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.224

56/100

15%

TTI (Time to Interactive)

Value19.9 s

2/100

10%

dieuhoatrungtamvrv.com

305 ms

www.dieuhoatrungtamvrv.com

336 ms

55013136-widget_css_bundle.css

77 ms

jquery.min.js

73 ms

www.dieuhoatrungtamvrv.com

142 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 10% of them (10 requests) were addressed to the original Dieuhoatrungtamvrv.com, 24% (25 requests) were made to Lh4.googleusercontent.com and 12% (13 requests) were made to Maps.googleapis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source 24h.com.vn.

Content Size

1.7 MB

After Optimization

1.5 MB

In fact, the total size of Dieuhoatrungtamvrv.com main page is 1.7 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. 75% 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 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 103.8 kB

Original 133.3 kB
After minification 129.8 kB
After compression 29.5 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 103.8 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 27.3 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. Dieuhoa Trung Tam VRV images are well optimized though.

JavaScript Optimization

-8%

Potential reduce by 20.9 kB

Original 274.7 kB
After minification 274.7 kB
After compression 253.8 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

-0%

Potential reduce by 0 B

Original 6.6 kB
After minification 6.6 kB
After compression 6.6 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. Dieuhoatrungtamvrv.com has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dieuhoa Trung Tam VRV. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 7 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

Image elements do not have [alt] attributes

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

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 items highlight common accessibility best practices.

High

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

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

Missing source maps for large first-party JavaScript

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

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 Dieuhoatrungtamvrv.com 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 Dieuhoatrungtamvrv.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

dieuhoatrungtamvrv.com

Open Graph data is detected on the main page of Dieuhoa Trung Tam VRV. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Điều hòa trung tâm | Hệ thống VRV | Điều hòa công nghiệp

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

dieuhoatrungtamvrv.com

www.dieuhoatrungtamvrv.com

55013136-widget_css_bundle.css

jquery.min.js

www.dieuhoatrungtamvrv.com

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

dieuhoatrungtamvrv.com

www.dieuhoatrungtamvrv.com

55013136-widget_css_bundle.css

jquery.min.js

www.dieuhoatrungtamvrv.com

addthis_widget.js

2377718498-widgets.js

analytics.js

all.js

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authorization.css

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