12.1 sec in total
1.3 sec
10.5 sec
216 ms
Click here to check amazing 51 Nes content for China. Otherwise, check out these important facts you probably never knew about 51nes.cn
最全面的NES游戏下载网站,拥有几千个nes游戏和上万篇攻略秘籍,适合各种手机使用的nes手机模拟器,并不断进行nes游戏相关资源的收集及整理,喜欢本站的朋友请牢记www.51nes.cn。
Visit 51nes.cnWe analyzed 51nes.cn page load time and found that the first response time was 1.3 sec and then it took 10.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
51nes.cn performance score
name
value
score
weighting
Value8.1 s
0/100
10%
Value12.0 s
0/100
25%
Value15.0 s
1/100
10%
Value220 ms
88/100
30%
Value0.318
36/100
15%
Value12.2 s
15/100
10%
1334 ms
598 ms
1233 ms
7 ms
4175 ms
Our browser made a total of 47 requests to load all elements on the main page. We found that 77% of them (36 requests) were addressed to the original 51nes.cn, 9% (4 requests) were made to Pagead2.googlesyndication.com and 4% (2 requests) were made to Count30.51yes.com. The less responsive or slowest element that took the longest time to load (4.2 sec) relates to the external source Count30.51yes.com.
Page size can be reduced by 64.0 kB (20%)
319.1 kB
255.1 kB
In fact, the total size of 51nes.cn main page is 319.1 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 236.1 kB which makes up the majority of the site volume.
Potential reduce by 25.5 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. 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 25.5 kB or 77% of the original size.
Potential reduce by 11.8 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 Nes images are well optimized though.
Potential reduce by 9.7 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 9.7 kB or 35% of the original size.
Potential reduce by 17.0 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. 51nes.cn needs all CSS files to be minified and compressed as it can save up to 17.0 kB or 78% of the original size.
Number of requests can be reduced by 16 (35%)
46
30
The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Nes. 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 from 4 to 1 for CSS and as a result speed up the page load time.
www.51nes.cn
1334 ms
style.css
598 ms
main.js
1233 ms
show_ads.js
7 ms
click.aspx
4175 ms
common.css
582 ms
home.css
820 ms
NesGamelist.css
914 ms
logo.gif
552 ms
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553 ms
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2543 ms
680.jpg
2536 ms
rss2.0feed.gif
2771 ms
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wapwireless.gif
2990 ms
3g.gif
2990 ms
ICP.gif
2976 ms
netcen.gif
2978 ms
div.gif
3257 ms
ca-pub-0487625763151343.js
53 ms
zrt_lookup.html
47 ms
show_ads_impl.js
54 ms
ads
191 ms
osd.js
5 ms
abg.js
28 ms
h.js
1066 ms
count1.gif
926 ms
hm.gif
535 ms
51nes.cn 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
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.
51nes.cn 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
Page has valid source maps
Issues were logged in the Issues panel in Chrome Devtools
51nes.cn 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
GB2312
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51nes.cn 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 51nes.cn main page’s claimed encoding is gb2312. 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.
51nes.cn
Open Graph description is not detected on the main page of 51 Nes. 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: