6.2 sec in total
674 ms
5.2 sec
288 ms
Click here to check amazing Youdao content for China. Otherwise, check out these important facts you probably never knew about youdao.com
网易有道是中国领先的智能学习公司,致力于提供100%以用户为导向的学习产品和服务。有道成立于2006年,打造了一系列深受用户喜欢的口碑型大众学习工具产品,例如:网易有道词典、有道精品课、有道翻译官、有道云笔记等。2014年,网易有道宣布正式进军互联网教育行业。2018年4月,网易有道完成首次战略融资,投后估值11.2亿美金,跻身独角兽阵营。2019年10月,网易有道成功登陆纽交所,股票代码为“DA...
Visit youdao.comWe analyzed Youdao.com page load time and found that the first response time was 674 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
youdao.com performance score
name
value
score
weighting
Value9.4 s
0/100
10%
Value9.9 s
0/100
25%
Value12.5 s
3/100
10%
Value230 ms
87/100
30%
Value0.129
82/100
15%
Value10.1 s
26/100
10%
674 ms
1303 ms
1094 ms
1104 ms
1109 ms
Our browser made a total of 26 requests to load all elements on the main page. We found that 8% of them (2 requests) were addressed to the original Youdao.com, 65% (17 requests) were made to Shared.ydstatic.com and 27% (7 requests) were made to Ydlunacommon-cdn.nosdn.127.net. The less responsive or slowest element that took the longest time to load (2.2 sec) relates to the external source Ydlunacommon-cdn.nosdn.127.net.
Page size can be reduced by 285.8 kB (54%)
525.6 kB
239.8 kB
In fact, the total size of Youdao.com main page is 525.6 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. HTML takes 308.3 kB which makes up the majority of the site volume.
Potential reduce by 258.5 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 258.5 kB or 84% of the original size.
Potential reduce by 27.1 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, Youdao needs image optimization as it can save up to 27.1 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 28 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 209 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. Youdao.com has all CSS files already compressed.
Number of requests can be reduced by 11 (50%)
22
11
The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Youdao. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.
youdao.com
674 ms
youdao.com
1303 ms
swiper-bundle.min.css
1094 ms
bury.js
1104 ms
v1.js
1109 ms
yd-nav.js
1113 ms
swiper-bundle.min.js
1137 ms
1.1.3.js
1137 ms
405e5a6.js
1051 ms
cd19320.js
1082 ms
6973892.js
1084 ms
cb4b5ac.js
1074 ms
8ee1646.js
1312 ms
a3c2893.js
1513 ms
b0d617e.js
1228 ms
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1890 ms
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2054 ms
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2204 ms
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2231 ms
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2218 ms
banner.19d6197.png
641 ms
search_icon.8b36c2f.png
267 ms
word_book_btn.f206077.png
267 ms
81b481a6bee6d6a94eaf53895db33dc1.otf
2209 ms
Gilroy-Medium.woff
382 ms
youdao.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA input fields do not have accessible names
[role]s do not have all required [aria-*] attributes
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
youdao.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
Missing source maps for large first-party JavaScript
Issues were logged in the Issues panel in Chrome Devtools
youdao.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 doesn't use 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 Youdao.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 Youdao.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.
youdao.com
Open Graph description is not detected on the main page of Youdao. 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: