Tools & Wizards About Us

Report Summary

  • 7

    Performance

    Renders faster than
    22% of other websites

  • 55

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

nsca.vn

NSCA: ĐẠI DIỆN NGÀNH SẢN XUẤT PHỤ KIỆN MEP TẠI VIỆT NAM

Page Load Speed

15.5 sec in total

First Response

505 ms

Resources Loaded

13.4 sec

Page Rendered

1.6 sec

About Website

Visit nsca.vn now to see the best up-to-date NSCA content and also check out these interesting facts you probably never knew about nsca.vn

NSCA chuyên sản xuất và phân phối các sản phẩm kỹ thuật phụ trợ cho các hệ thống cơ điện công trình. Bộ sản phẩm của NSCA luôn được đánh giá cao và là tâm điểm theo dõi của thị trường sản xuất cùng ng...

Visit nsca.vn

Key Findings

We analyzed Nsca.vn page load time and found that the first response time was 505 ms and then it took 15 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

nsca.vn performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value19.7 s

0/100

10%

TBT (Total Blocking Time)

Value1,380 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.788

5/100

15%

TTI (Time to Interactive)

Value49.9 s

0/100

10%

Network Requests Diagram

nsca.vn

505 ms

nsca.vn

994 ms

starduct.vn

2617 ms

app.css

973 ms

manifest.js

737 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Nsca.vn, 93% (50 requests) were made to Starduct.vn and 2% (1 request) were made to Analytics.jamstackvietnam.com. The less responsive or slowest element that took the longest time to load (8.2 sec) relates to the external source Starduct.vn.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.2 MB (18%)

Content Size

12.4 MB

After Optimization

10.3 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Nsca.vn main page is 12.4 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. 45% of websites need less resources to load. Images take 12.0 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 312.9 kB

  • Original 419.8 kB
  • After minification 417.4 kB
  • After compression 106.9 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 312.9 kB or 75% of the original size.

Image Optimization

-15%

Potential reduce by 1.8 MB

  • Original 12.0 MB
  • After minification 10.1 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, NSCA needs image optimization as it can save up to 1.8 MB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-72%

Potential reduce by 23.3 kB

  • Original 32.4 kB
  • After minification 32.4 kB
  • After compression 9.1 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. Nsca.vn needs all CSS files to be minified and compressed as it can save up to 23.3 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (9%)

Requests Now

46

After Optimization

42

  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NSCA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

nsca.vn accessibility score

55

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

Buttons do not have an accessible name

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.

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 IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

nsca.vn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

nsca.vn SEO score

89

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

    VI

  • Language Claimed

    VI

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nsca.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 Nsca.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 data is detected on the main page of NSCA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: