27 sec in total
2.4 sec
23.9 sec
645 ms
Click here to check amazing 51 Ibmbb content. Otherwise, check out these important facts you probably never knew about 51ibmbb.com
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Visit 51ibmbb.comWe analyzed 51ibmbb.com page load time and found that the first response time was 2.4 sec and then it took 24.6 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. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
51ibmbb.com performance score
name
value
score
weighting
Value2.9 s
51/100
10%
Value3.2 s
71/100
25%
Value4.8 s
67/100
10%
Value380 ms
70/100
30%
Value0.002
100/100
15%
Value5.9 s
66/100
10%
2445 ms
2256 ms
2014 ms
884 ms
1864 ms
Our browser made a total of 54 requests to load all elements on the main page. We found that 96% of them (52 requests) were addressed to the original 51ibmbb.com, 2% (1 request) were made to Js.users.51.la and 2% (1 request) were made to Icon.51.la. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain 51ibmbb.com.
Page size can be reduced by 168.9 kB (30%)
564.8 kB
395.9 kB
In fact, the total size of 51ibmbb.com main page is 564.8 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. 25% of websites need less resources to load. Images take 428.6 kB which makes up the majority of the site volume.
Potential reduce by 29.1 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 6.1 kB, which is 17% 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 29.1 kB or 80% of the original size.
Potential reduce by 58.9 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, 51 Ibmbb needs image optimization as it can save up to 58.9 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 47.1 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 47.1 kB or 81% of the original size.
Potential reduce by 33.8 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. 51ibmbb.com needs all CSS files to be minified and compressed as it can save up to 33.8 kB or 82% of the original size.
Number of requests can be reduced by 6 (12%)
52
46
The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Ibmbb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
51ibmbb.com
2445 ms
style.css
2256 ms
common.js
2014 ms
index.js
884 ms
transport.js
1864 ms
utils.js
1151 ms
cycle_image.js
514 ms
3586446.js
3833 ms
zzsc.css
386 ms
jquery-1.7.min.js
3215 ms
logo.gif
357 ms
service.gif
347 ms
biao8.gif
433 ms
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subscibe.gif
5328 ms
fot_service.jpg
20379 ms
wx.jpg
9738 ms
i_index_icon.png
7418 ms
i_menu_bg.jpg
5211 ms
nav_t_bg.jpg
6393 ms
biao5.gif
5627 ms
bg.gif
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biao17.gif
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icon_9.gif
758 ms
fixCont.png
6987 ms
51ibmbb.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.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Definition list items are not wrapped in <dl> elements
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
Links do not have a discernible name
<object> elements do not have alternate text
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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.
51ibmbb.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
51ibmbb.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 uses plugins
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
GBK
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51ibmbb.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 51ibmbb.com main page’s claimed encoding is gbk. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
51ibmbb.com
Open Graph description is not detected on the main page of 51 Ibmbb. 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: