4.8 sec in total
863 ms
2.8 sec
1.1 sec
Welcome to vatlieucongtrinh.com homepage info - get ready to check Vatlieucongtrinh best content for Vietnam right away, or after learning these important things about vatlieucongtrinh.com
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Visit vatlieucongtrinh.comWe analyzed Vatlieucongtrinh.com page load time and found that the first response time was 863 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
vatlieucongtrinh.com performance score
name
value
score
weighting
Value2.3 s
74/100
10%
Value3.2 s
73/100
25%
Value3.6 s
87/100
10%
Value40 ms
100/100
30%
Value0.101
89/100
15%
Value3.2 s
94/100
10%
863 ms
467 ms
479 ms
490 ms
723 ms
Our browser made a total of 47 requests to load all elements on the main page. We found that 85% of them (40 requests) were addressed to the original Vatlieucongtrinh.com, 11% (5 requests) were made to Mail.opi.yahoo.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Vatlieucongtrinh.com.
Page size can be reduced by 91.2 kB (34%)
269.7 kB
178.5 kB
In fact, the total size of Vatlieucongtrinh.com main page is 269.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 152.9 kB which makes up the majority of the site volume.
Potential reduce by 56.6 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 56.6 kB or 80% of the original size.
Potential reduce by 29.3 kB
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, Vatlieucongtrinh needs image optimization as it can save up to 29.3 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 3.7 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.
Potential reduce by 1.5 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. Vatlieucongtrinh.com needs all CSS files to be minified and compressed as it can save up to 1.5 kB or 32% of the original size.
We found no issues to fix!
41
41
The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vatlieucongtrinh. According to our analytics all requests are already optimized.
vatlieucongtrinh.com
863 ms
style.css
467 ms
main_en.css
479 ms
function.js
490 ms
jquery-1.3.2.min.js
723 ms
online
63 ms
bgleft.png
301 ms
logo.gif
303 ms
slogan.jpg
301 ms
iso.jpg
302 ms
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475 ms
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20110829141613Day%20Poll%20Speaker%20%20BAO%20LOI.JPG
704 ms
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20100502112604gennhuaSP.JPG
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1170 ms
20100806204510PhienbaoanKrone.bmp
1173 ms
foxit.png
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SINO.JPG
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VANLOCK.JPG
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SP.JPG
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Clipsal.jpg
1414 ms
AMP.jpg
1428 ms
Lioa.JPG
1435 ms
alantek.JPG
1684 ms
Postef.jpg
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Panasonic.jpg
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dathongbaobct.png
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online
50 ms
online
49 ms
online
49 ms
online
48 ms
bgright.png
1626 ms
indicator.gif
1439 ms
ga.js
15 ms
__utm.gif
14 ms
vatlieucongtrinh.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
vatlieucongtrinh.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
vatlieucongtrinh.com 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
VI
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vatlieucongtrinh.com can be misinterpreted by Google and other search engines. Our service has detected that Vietnamese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Vatlieucongtrinh.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.
vatlieucongtrinh.com
Open Graph description is not detected on the main page of Vatlieucongtrinh. 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: