27.8 sec in total
835 ms
25.6 sec
1.4 sec
Welcome to z4f.net homepage info - get ready to check Z 4 F best content right away, or after learning these important things about z4f.net
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Visit z4f.netWe analyzed Z4f.net page load time and found that the first response time was 835 ms and then it took 27 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
z4f.net performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value3.2 s
73/100
25%
Value7.1 s
31/100
10%
Value20 ms
100/100
30%
Value0
100/100
15%
Value4.1 s
86/100
10%
835 ms
993 ms
318 ms
906 ms
483 ms
Our browser made a total of 56 requests to load all elements on the main page. We found that 63% of them (35 requests) were addressed to the original Z4f.net, 20% (11 requests) were made to Api.map.baidu.com and 4% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source Online2.map.bdimg.com.
Page size can be reduced by 68.8 kB (7%)
930.4 kB
861.6 kB
In fact, the total size of Z4f.net main page is 930.4 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. 30% of websites need less resources to load. Images take 808.1 kB which makes up the majority of the site volume.
Potential reduce by 40.5 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 11.4 kB, which is 23% 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 40.5 kB or 81% of the original size.
Potential reduce by 19.0 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. Z 4 F images are well optimized though.
Potential reduce by 8.6 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 8.6 kB or 14% of the original size.
Potential reduce by 745 B
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. Z4f.net has all CSS files already compressed.
Number of requests can be reduced by 23 (45%)
51
28
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Z 4 F. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.
z4f.net
835 ms
www.z4f.net
993 ms
yunu.css
318 ms
jquery-1.12.4.min.js
906 ms
mk.js
483 ms
jquery.lazyload.min.js
481 ms
idangerous.swiper.css
482 ms
idangerous.swiper.min.js
728 ms
jquery.kxbdMarquee.js
629 ms
api
727 ms
js-sdk-pro.min.js
75 ms
push.js
532 ms
hm.js
1447 ms
headbg.jpg
1104 ms
ren.png
288 ms
zt.jpg
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jb.png
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fff.png
275 ms
dz.png
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dh.png
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sj.png
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yx.png
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logo2.png
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ewm.png
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aboutbg.jpg
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tit.png
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img2.png
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bgcase.jpg
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casetit.png
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more.png
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getscript
2242 ms
bmap.css
457 ms
hm.gif
326 ms
s.js
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b.js
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bg.png
250 ms
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blank.gif
234 ms
openhand.cur
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mapctrls.gif
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copyright_logo.png
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dian.png
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foot.gif
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stcb.jpg
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stch.jpg
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cfgh.jpg
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jgps.jpg
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lypx.jpg
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getmodules
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blank.gif
384 ms
blank.gif
235 ms
z4f.net 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.
z4f.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
z4f.net SEO score
ZH
ZH
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Z4f.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Z4f.net 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.
z4f.net
Open Graph description is not detected on the main page of Z 4 F. 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: