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Welcome to jstronic.com homepage info - get ready to check Jstronic best content right away, or after learning these important things about jstronic.com
Ningbo Junsheng Electronics Co., Ltd. is a specialized supplier of LED series in China. Our products cover full series of LED lamps, LED displays, LED dot matrixes, SMD, and LED lighting, include LED ...
Visit jstronic.comWe analyzed Jstronic.com page load time and found that the first response time was 1.8 sec and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
jstronic.com performance score
name
value
score
weighting
Value2.4 s
72/100
10%
Value5.4 s
20/100
25%
Value7.3 s
29/100
10%
Value100 ms
98/100
30%
Value0.344
32/100
15%
Value7.1 s
52/100
10%
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42 ms
61 ms
Our browser made a total of 92 requests to load all elements on the main page. We found that 98% of them (90 requests) were addressed to the original Jstronic.com, 2% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Jstronic.com.
Page size can be reduced by 67.6 kB (3%)
2.2 MB
2.1 MB
In fact, the total size of Jstronic.com main page is 2.2 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. 70% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.
Potential reduce by 35.2 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. This page needs HTML code to be minified as it can gain 11.1 kB, which is 28% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 35.2 kB or 89% of the original size.
Potential reduce by 29.0 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. Jstronic images are well optimized though.
Potential reduce by 1.0 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. This website has mostly compressed JavaScripts.
Potential reduce by 2.4 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. Jstronic.com has all CSS files already compressed.
Number of requests can be reduced by 32 (38%)
85
53
The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jstronic. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
jstronic.com
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jstronic.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
Image elements do not have [alt] attributes
Links do not have a discernible name
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
jstronic.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
jstronic.com SEO score
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jstronic.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 Jstronic.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.
jstronic.com
Open Graph description is not detected on the main page of Jstronic. 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: