15.5 sec in total
505 ms
13.4 sec
1.6 sec
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.vnWe 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.
nsca.vn performance score
name
value
score
weighting
Value4.7 s
13/100
10%
Value10.7 s
0/100
25%
Value19.7 s
0/100
10%
Value1,380 ms
16/100
30%
Value0.788
5/100
15%
Value49.9 s
0/100
10%
505 ms
994 ms
2617 ms
973 ms
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 size can be reduced by 2.2 MB (18%)
12.4 MB
10.3 MB
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.
Potential reduce by 312.9 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.
Potential reduce by 1.8 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.
Potential reduce by 23.3 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.
Number of requests can be reduced by 4 (9%)
46
42
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.
nsca.vn
505 ms
nsca.vn
994 ms
starduct.vn
2617 ms
app.css
973 ms
manifest.js
737 ms
vendor.js
1994 ms
app.js
1178 ms
plausible.js
1044 ms
js
59 ms
login-banner.png
1226 ms
slider-section2.jpg
1187 ms
slide2.jpg
5599 ms
image%2094%20(3).jpg
2377 ms
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Thumbnail%20XK.png
5600 ms
AMCA.png
2144 ms
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2940 ms
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3397 ms
SWIRL%20DIFFUSER%20A.png
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3137 ms
FPT.png
2917 ms
Vingroup.png
3109 ms
16350118_LOGO-DOJI.png
3166 ms
Samsung.png
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3426 ms
1200px-CJ_logo.svg.png
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Viettel_logo_2021.png
3662 ms
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Hayatt.jpg
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Hinh-anh-nha-may-o-to-vinfast-se-chinh-thuc-khanh-thanh-vao-thang-6-2019-3_1624415375.jpeg
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acsv.jpg
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vinsmart.jpeg
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5573 ms
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6190 ms
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Hyatt%20Regency%20H%E1%BA%A1%20Long.jpg
5359 ms
iCielHelveticaNowDisplay-Bold.otf
5462 ms
iCielHelveticaNowDisplay-Medium.otf
5409 ms
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5446 ms
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5011 ms
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contact.jpg
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4099 ms
nsca.vn accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
ARIA IDs are not unique
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
nsca.vn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
nsca.vn SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
VI
VI
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.
nsca.vn
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: