3.2 sec in total
502 ms
2.3 sec
437 ms
Welcome to vietinfo.cz homepage info - get ready to check Vietinfo best content for Czech Republic right away, or after learning these important things about vietinfo.cz
Trang tin cung cấp thông tin về Việt Nam và thế giới đến cộng đồng người Việt ở nước ngoài
Visit vietinfo.czWe analyzed Vietinfo.cz page load time and found that the first response time was 502 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
vietinfo.cz performance score
name
value
score
weighting
Value3.6 s
32/100
10%
Value8.5 s
1/100
25%
Value7.1 s
31/100
10%
Value390 ms
69/100
30%
Value0.547
13/100
15%
Value11.3 s
19/100
10%
502 ms
634 ms
860 ms
90 ms
39 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Vietinfo.cz, 45% (29 requests) were made to Data.vietinfo.eu and 38% (24 requests) were made to Vietinfo.eu. The less responsive or slowest element that took the longest time to load (947 ms) relates to the external source Data.vietinfo.eu.
Page size can be reduced by 301.8 kB (29%)
1.0 MB
739.0 kB
In fact, the total size of Vietinfo.cz main page is 1.0 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 701.2 kB which makes up the majority of the site volume.
Potential reduce by 72.1 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 72.1 kB or 78% of the original size.
Potential reduce by 63.9 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. Vietinfo images are well optimized though.
Potential reduce by 126.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 126.9 kB or 63% of the original size.
Potential reduce by 38.8 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. Vietinfo.cz needs all CSS files to be minified and compressed as it can save up to 38.8 kB or 82% of the original size.
Number of requests can be reduced by 19 (31%)
62
43
The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vietinfo. 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.
vietinfo.cz
502 ms
style.php
634 ms
javascript.php
860 ms
plusone.js
90 ms
cb=gapi.loaded_0
39 ms
500_thumb.jpg
663 ms
1.jpg
25 ms
vietinfo.png
110 ms
bgrnd_menu.png
110 ms
home.gif
207 ms
icon_02.gif
206 ms
dot.gif
207 ms
bg_search.gif
208 ms
btn_search1.gif
208 ms
1.jpg
54 ms
140_thumb.jpg
434 ms
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467 ms
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333 ms
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427 ms
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328 ms
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557 ms
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549 ms
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571 ms
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671 ms
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685 ms
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712 ms
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891 ms
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900 ms
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936 ms
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930 ms
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947 ms
bkgnd_adv.jpg
502 ms
bg_news.png
253 ms
bgr_buttons.gif
244 ms
icon_01.gif
246 ms
img.gif
228 ms
bg_li.gif
228 ms
line.gif
325 ms
title-adv.gif
326 ms
small-play-icons.png
329 ms
line2.gif
341 ms
ga.js
48 ms
sdk.js
148 ms
advertising.html
599 ms
bg_liMN2.gif
273 ms
bg_liMN.gif
358 ms
ui-icons_222222_256x240.png
359 ms
ui-icons_888888_256x240.png
427 ms
__utm.gif
11 ms
131 ms
xd_arbiter.php
120 ms
xd_arbiter.php
244 ms
vietinfo.cz 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
Links do not have a discernible name
vietinfo.cz 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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
vietinfo.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vietinfo.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech 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 Vietinfo.cz 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.
vietinfo.cz
Open Graph description is not detected on the main page of Vietinfo. 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: