27.3 sec in total
547 ms
26.4 sec
305 ms
Welcome to nb591.com homepage info - get ready to check Nb 591 best content for China right away, or after learning these important things about nb591.com
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Visit nb591.comWe analyzed Nb591.com page load time and found that the first response time was 547 ms and then it took 26.7 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 were 8 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
nb591.com performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value6.0 s
12/100
25%
Value5.3 s
58/100
10%
Value20 ms
100/100
30%
Value0.004
100/100
15%
Value3.6 s
91/100
10%
547 ms
1350 ms
3934 ms
2261 ms
4192 ms
Our browser made a total of 58 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Nb591.com, 55% (32 requests) were made to T.nb591.com and 26% (15 requests) were made to T.www.nb591.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source T.www.nb591.com.
Page size can be reduced by 350.6 kB (13%)
2.8 MB
2.4 MB
In fact, the total size of Nb591.com main page is 2.8 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. 20% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.
Potential reduce by 29.7 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. 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 29.7 kB or 76% of the original size.
Potential reduce by 270.0 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. Nb 591 images are well optimized though.
Potential reduce by 50.9 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. Nb591.com needs all CSS files to be minified and compressed as it can save up to 50.9 kB or 86% of the original size.
Number of requests can be reduced by 14 (36%)
39
25
The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nb 591. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
nb591.com
547 ms
t.nb591.com
1350 ms
main.css
3934 ms
ajax.js
2261 ms
yu.js
4192 ms
tb.js
969 ms
weather.js
2421 ms
javascript.php
3927 ms
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logo.gif
1895 ms
nav.gif
476 ms
subMenu.jpg
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menuCurrent.jpg
482 ms
menu.jpg
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fl_left.gif
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fl_right.gif
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great_icon2.gif
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gerenzhuanrang.gif
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cyberhome.gif
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police1.gif
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police2.gif
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ipaddress
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fl_bg.jpg
1846 ms
dashline.gif
2945 ms
slide_trigger.gif
5336 ms
arrow.gif
2896 ms
title.jpg
2946 ms
bg_utitle.jpg
3270 ms
bg_utitle_ico.jpg
3336 ms
btn_login.gif
3625 ms
login_left.gif
3269 ms
title1.jpg
3640 ms
blockTBtn.gif
3696 ms
dashX.gif
3829 ms
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1139 ms
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1500 ms
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19616 ms
nb591.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.
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
Form elements do not have associated labels
Links do not have a discernible name
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
nb591.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
Browser errors were logged to the console
nb591.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
ZH
N/A
GBK
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nb591.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 Nb591.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.
nb591.com
Open Graph description is not detected on the main page of Nb 591. 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: