17 sec in total
1.4 sec
12.8 sec
2.9 sec
Visit opba.vn now to see the best up-to-date Opba content for Vietnam and also check out these interesting facts you probably never knew about opba.vn
Shop vỏ ốp lưng bao da và phụ kiện điện thoại di động sỉ lẻ giá rẻ tốt nhất. Sản phẩm chính hãng chất lượng cao mới nhất độc đáo 100%
Visit opba.vnWe analyzed Opba.vn page load time and found that the first response time was 1.4 sec and then it took 15.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
opba.vn performance score
name
value
score
weighting
Value5.0 s
10/100
10%
Value9.2 s
1/100
25%
Value26.3 s
0/100
10%
Value25,280 ms
0/100
30%
Value0.203
61/100
15%
Value41.1 s
0/100
10%
1359 ms
496 ms
479 ms
497 ms
519 ms
Our browser made a total of 401 requests to load all elements on the main page. We found that 58% of them (233 requests) were addressed to the original Opba.vn, 32% (127 requests) were made to Maps.googleapis.com and 3% (12 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Opba.vn.
Page size can be reduced by 1.1 MB (13%)
8.3 MB
7.2 MB
In fact, the total size of Opba.vn main page is 8.3 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. 85% 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 7.6 MB which makes up the majority of the site volume.
Potential reduce by 197.4 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 197.4 kB or 89% of the original size.
Potential reduce by 766.9 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. Opba images are well optimized though.
Potential reduce by 99.1 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 99.1 kB or 22% of the original size.
Potential reduce by 990 B
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. Opba.vn has all CSS files already compressed.
Number of requests can be reduced by 88 (22%)
394
306
The browser has sent 394 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 73 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
opba.vn
1359 ms
jquery-ui-1.10.2.custom.min.css
496 ms
font-awesome.min.css
479 ms
jquery.lightbox-0.5.css
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styles.css
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jquery-1.7.1.min.js
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jquery-ui-1.10.2.custom.min.js
1046 ms
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opba.vn accessibility score
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 input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
ARIA IDs are not unique
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
Links do not have a discernible name
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.
opba.vn 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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
opba.vn 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
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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opba.vn 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 Opba.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.
opba.vn
Open Graph description is not detected on the main page of Opba. 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: