3.4 sec in total
82 ms
2.3 sec
1.1 sec
Welcome to hdv-tech.en.alibaba.com homepage info - get ready to check Hdv Tech En Alibaba best content for China right away, or after learning these important things about hdv-tech.en.alibaba.com
Shenzhen Hdv Photoelectron Technology Ltd., Experts in Manufacturing and Exporting ONU, OLT and 0 more Products.
Visit hdv-tech.en.alibaba.comWe analyzed Hdv-tech.en.alibaba.com page load time and found that the first response time was 82 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
hdv-tech.en.alibaba.com performance score
name
value
score
weighting
Value2.6 s
65/100
10%
Value2.8 s
83/100
25%
Value18.7 s
0/100
10%
Value8,850 ms
0/100
30%
Value0.061
97/100
15%
Value27.5 s
0/100
10%
82 ms
356 ms
82 ms
75 ms
123 ms
Our browser made a total of 96 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Hdv-tech.en.alibaba.com, 33% (32 requests) were made to S.alicdn.com and 19% (18 requests) were made to Img.alicdn.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source S.alicdn.com.
Page size can be reduced by 1.9 MB (57%)
3.4 MB
1.5 MB
In fact, the total size of Hdv-tech.en.alibaba.com main page is 3.4 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. 75% 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. Javascripts take 2.5 MB which makes up the majority of the site volume.
Potential reduce by 363.7 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 363.7 kB or 81% of the original size.
Potential reduce by 9.9 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. Hdv Tech En Alibaba images are well optimized though.
Potential reduce by 1.3 MB
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 1.3 MB or 50% of the original size.
Potential reduce by 292.5 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. Hdv-tech.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 292.5 kB or 88% of the original size.
Number of requests can be reduced by 41 (48%)
85
44
The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hdv Tech En Alibaba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
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hdv-tech.en.alibaba.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
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
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
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
hdv-tech.en.alibaba.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
hdv-tech.en.alibaba.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
Document doesn't have a valid hreflang
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hdv-tech.en.alibaba.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Hdv-tech.en.alibaba.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.
hdv-tech.en.alibaba.com
Open Graph data is detected on the main page of Hdv Tech En Alibaba. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: