3.4 sec in total
1.1 sec
2.2 sec
99 ms
Visit 51ccd.com now to see the best up-to-date 51 Ccd content and also check out these interesting facts you probably never knew about 51ccd.com
51ccd.com
Visit 51ccd.comWe analyzed 51ccd.com page load time and found that the first response time was 1.1 sec and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
51ccd.com performance score
name
value
score
weighting
Value1.7 s
91/100
10%
Value2.0 s
97/100
25%
Value5.7 s
51/100
10%
Value10 ms
100/100
30%
Value0
100/100
15%
Value3.8 s
90/100
10%
1092 ms
68 ms
242 ms
1070 ms
68 ms
Our browser made a total of 11 requests to load all elements on the main page. We found that 91% of them (10 requests) were addressed to the original 51ccd.com, 9% (1 request) were made to Js.users.51.la. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain 51ccd.com.
Page size can be reduced by 24.3 kB (27%)
88.8 kB
64.5 kB
In fact, the total size of 51ccd.com main page is 88.8 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. 15% of websites need less resources to load. Images take 67.3 kB which makes up the majority of the site volume.
Potential reduce by 3.2 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 1.0 kB, which is 22% 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 3.2 kB or 70% of the original size.
Potential reduce by 7.2 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, 51 Ccd needs image optimization as it can save up to 7.2 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 1.1 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 1.1 kB or 61% of the original size.
Potential reduce by 12.7 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. 51ccd.com needs all CSS files to be minified and compressed as it can save up to 12.7 kB or 84% of the original size.
We found no issues to fix!
10
10
The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Ccd. According to our analytics all requests are already optimized.
51ccd.com
1092 ms
system.css
68 ms
jquery-1.11.3.min.js
242 ms
17339906.js
1070 ms
templet-link.png
68 ms
body-bg-4.jpg
132 ms
contact-qq.png
131 ms
2dcc7cecc0a427698e12ca25aac1279e_tel.png
152 ms
2dcc7cecc0a427698e12ca25aac1279e_email.png
160 ms
common-avatar.png
133 ms
search-icon-dark-gray.png
162 ms
51ccd.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
ARIA IDs are not unique
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
51ccd.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
51ccd.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
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51ccd.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 51ccd.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.
51ccd.com
Open Graph description is not detected on the main page of 51 Ccd. 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: