8.6 sec in total
431 ms
7.7 sec
506 ms
Click here to check amazing Yc Optical content. Otherwise, check out these important facts you probably never knew about yc-optical.com
Find the best quality and low price acetate eyeglasses, metal eyeglasses made in China at Yuchang Optical. Elegant design, fine workmanship and quality materials are our main characteristics. Welcome ...
Visit yc-optical.comWe analyzed Yc-optical.com page load time and found that the first response time was 431 ms and then it took 8.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
yc-optical.com performance score
name
value
score
weighting
Value2.6 s
62/100
10%
Value4.0 s
48/100
25%
Value4.8 s
67/100
10%
Value530 ms
55/100
30%
Value0.577
12/100
15%
Value4.5 s
83/100
10%
431 ms
371 ms
77 ms
143 ms
276 ms
Our browser made a total of 116 requests to load all elements on the main page. We found that 76% of them (88 requests) were addressed to the original Yc-optical.com, 6% (7 requests) were made to G.alicdn.com and 3% (4 requests) were made to Player.youku.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Player.youku.com.
Page size can be reduced by 94.1 kB (9%)
1.1 MB
978.9 kB
In fact, the total size of Yc-optical.com main page is 1.1 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. 50% of websites need less resources to load. Images take 698.9 kB which makes up the majority of the site volume.
Potential reduce by 27.2 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. 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 27.2 kB or 78% of the original size.
Potential reduce by 28.5 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. Yc Optical images are well optimized though.
Potential reduce by 36.2 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 36.2 kB or 11% of the original size.
Potential reduce by 2.2 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. Yc-optical.com needs all CSS files to be minified and compressed as it can save up to 2.2 kB or 15% of the original size.
Number of requests can be reduced by 59 (53%)
112
53
The browser has sent 112 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yc Optical. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and as a result speed up the page load time.
yc-optical.com
431 ms
www.yc-optical.com
371 ms
style.css
77 ms
index.css
143 ms
jquery.js
276 ms
Site_Common.js
153 ms
focus.js
151 ms
js119.js
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logo174583.png
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yc-optical.com accessibility score
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
[id] attributes on active, focusable elements are not unique
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.
yc-optical.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
yc-optical.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yc-optical.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Yc-optical.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.
yc-optical.com
Open Graph data is detected on the main page of Yc Optical. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: