30.7 sec in total
1.4 sec
28.3 sec
1 sec
Welcome to 51bi.com homepage info - get ready to check 51 Bi best content for United States right away, or after learning these important things about 51bi.com
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Visit 51bi.comWe analyzed 51bi.com page load time and found that the first response time was 1.4 sec and then it took 29.4 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
51bi.com performance score
name
value
score
weighting
Value5.5 s
6/100
10%
Value7.2 s
5/100
25%
Value12.3 s
3/100
10%
Value560 ms
53/100
30%
Value0.314
37/100
15%
Value7.1 s
52/100
10%
1352 ms
6696 ms
4992 ms
5981 ms
4539 ms
Our browser made a total of 80 requests to load all elements on the main page. We found that 5% of them (4 requests) were addressed to the original 51bi.com, 43% (34 requests) were made to Script.51bi.com and 38% (30 requests) were made to Ui.51bi.com. The less responsive or slowest element that took the longest time to load (15.8 sec) relates to the external source Ui.51bi.com.
Page size can be reduced by 1.3 MB (45%)
2.9 MB
1.6 MB
In fact, the total size of 51bi.com main page is 2.9 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. 30% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 487.7 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. This page needs HTML code to be minified as it can gain 167.8 kB, which is 32% 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 487.7 kB or 93% of the original size.
Potential reduce by 94.4 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. 51 Bi images are well optimized though.
Potential reduce by 315.4 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 315.4 kB or 71% of the original size.
Potential reduce by 432.8 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. 51bi.com needs all CSS files to be minified and compressed as it can save up to 432.8 kB or 84% of the original size.
Number of requests can be reduced by 17 (22%)
77
60
The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Bi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.
51bi.com
1352 ms
www.51bi.com
6696 ms
global.css
4992 ms
index201408.css
5981 ms
bjshare.css
4539 ms
jquery-1.11.1.min.js
5471 ms
jquery.lazyload1.9.3.js
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global.js
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index201408.js
5430 ms
sdk.js
858 ms
seallogo.dll
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storehint.js
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bjshare.js
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connect.6.1
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intro1.png
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spacer.png
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big_load56.gif
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bigetqrcode51bi.jpg
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ga.js
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151 ms
51bi.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.
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.
51bi.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
51bi.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
Tap targets are not sized appropriately
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51bi.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 51bi.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.
51bi.com
Open Graph description is not detected on the main page of 51 Bi. 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: