7.2 sec in total
828 ms
6.2 sec
122 ms
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Visit davidduc.comWe analyzed Davidduc.com page load time and found that the first response time was 828 ms and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
davidduc.com performance score
name
value
score
weighting
Value2.8 s
57/100
10%
Value3.4 s
65/100
25%
Value6.3 s
41/100
10%
Value10 ms
100/100
30%
Value0.022
100/100
15%
Value3.4 s
93/100
10%
828 ms
981 ms
1800 ms
494 ms
1304 ms
Our browser made a total of 20 requests to load all elements on the main page. We found that all of those requests were addressed to Davidduc.com and no external sources were called. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Davidduc.com.
Page size can be reduced by 87.3 kB (84%)
103.3 kB
16.1 kB
In fact, the total size of Davidduc.com main page is 103.3 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. CSS take 99.0 kB which makes up the majority of the site volume.
Potential reduce by 2.9 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 2.9 kB or 67% of the original size.
Potential reduce by 84.3 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. Davidduc.com needs all CSS files to be minified and compressed as it can save up to 84.3 kB or 85% of the original size.
We found no issues to fix!
15
15
The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Davidduc. According to our analytics all requests are already optimized.
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davidduc.com 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
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.
davidduc.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
davidduc.com 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
EN
VI
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Davidduc.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Vietnamese language. Our system also found out that Davidduc.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.
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davidduc.com
Open Graph data is detected on the main page of Davidduc. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: