2.4 sec in total
10 ms
2.1 sec
321 ms
Visit hjoptical.en.alibaba.com now to see the best up-to-date Hjoptical En Alibaba content for China and also check out these interesting facts you probably never knew about hjoptical.en.alibaba.com
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Visit hjoptical.en.alibaba.comWe analyzed Hjoptical.en.alibaba.com page load time and found that the first response time was 10 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
hjoptical.en.alibaba.com performance score
name
value
score
weighting
Value2.2 s
77/100
10%
Value3.3 s
69/100
25%
Value10.2 s
9/100
10%
Value4,740 ms
0/100
30%
Value0.242
51/100
15%
Value25.2 s
0/100
10%
10 ms
690 ms
239 ms
30 ms
256 ms
Our browser made a total of 104 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Hjoptical.en.alibaba.com, 32% (33 requests) were made to S.alicdn.com and 17% (18 requests) were made to Sc04.alicdn.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Sc04.alicdn.com.
Page size can be reduced by 5.4 MB (69%)
7.8 MB
2.4 MB
In fact, the total size of Hjoptical.en.alibaba.com main page is 7.8 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. 55% of websites need less resources to load. Javascripts take 6.4 MB which makes up the majority of the site volume.
Potential reduce by 415.3 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 415.3 kB or 82% of the original size.
Potential reduce by 23.9 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. Obviously, Hjoptical En Alibaba needs image optimization as it can save up to 23.9 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 4.3 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 4.3 MB or 68% of the original size.
Potential reduce by 591.2 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. Hjoptical.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 591.2 kB or 84% of the original size.
Number of requests can be reduced by 50 (54%)
93
43
The browser has sent 93 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hjoptical 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 30 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
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hjoptical.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.
hjoptical.en.alibaba.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
Missing source maps for large first-party JavaScript
hjoptical.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 doesn't use legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hjoptical.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 Hjoptical.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.
hjoptical.en.alibaba.com
Open Graph data is detected on the main page of Hjoptical En Alibaba. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: