8.3 sec in total
1.2 sec
5.8 sec
1.3 sec
Visit it.dataguru.cn now to see the best up-to-date It Dataguru content for China and also check out these interesting facts you probably never knew about it.dataguru.cn
Dataguru炼数成金是专注于Hadoop培训、大数据、数据分析、人工智能、数据可视化、运维自动化等技术和业务讨论的IT技术专业社区及面向企业和个人网络逆向培训服务机构,通过系列实战性Hadoop培训课程,包括Spark,Hbase,机器学习,深度学习,自然语言处理,网络爬虫,java开发,python开发,python数据分析,kafka,ELK等最前沿的大数据技术,提供来自互联网一线公司专家...
Visit it.dataguru.cnWe analyzed It.dataguru.cn page load time and found that the first response time was 1.2 sec and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
it.dataguru.cn performance score
name
value
score
weighting
Value2.5 s
66/100
10%
Value3.3 s
70/100
25%
Value5.7 s
51/100
10%
Value10 ms
100/100
30%
Value0.001
100/100
15%
Value4.1 s
86/100
10%
1203 ms
696 ms
693 ms
491 ms
737 ms
Our browser made a total of 68 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original It.dataguru.cn, 4% (3 requests) were made to Wpa.qq.com and 4% (3 requests) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Dataguru.cn.
Page size can be reduced by 840.0 kB (69%)
1.2 MB
382.1 kB
In fact, the total size of It.dataguru.cn main page is 1.2 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. 30% of websites need less resources to load. HTML takes 816.2 kB which makes up the majority of the site volume.
Potential reduce by 758.3 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 140.2 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 758.3 kB or 93% of the original size.
Potential reduce by 61.8 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. Obviously, It Dataguru needs image optimization as it can save up to 61.8 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 14.2 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 14.2 kB or 20% of the original size.
Potential reduce by 5.8 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. It.dataguru.cn needs all CSS files to be minified and compressed as it can save up to 5.8 kB or 24% of the original size.
Number of requests can be reduced by 21 (33%)
64
43
The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of It Dataguru. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
www.dataguru.cn
1203 ms
jquery-1.8.3.min.js
696 ms
common.css
693 ms
dg_base.css
491 ms
common.js
737 ms
jquery.textSlider.js
494 ms
dg_edu.css
687 ms
jquery.cookie.js
735 ms
js_login_bar.php
768 ms
js_ads.php
657 ms
boxy.css
462 ms
jquery.boxy.js
461 ms
floating-jf.js
525 ms
pa
710 ms
left_gb_an.gif
311 ms
left_zk_zn.gif
491 ms
icon_close.png
492 ms
right_gb_an.gif
499 ms
right_zk_zn.gif
503 ms
logo.png
506 ms
button_search.jpg
598 ms
icon_hz.jpg
635 ms
icon_hy.jpg
639 ms
icon_tz.jpg
728 ms
icon_sc.jpg
747 ms
icon_dj.jpg
748 ms
icon_task.jpg
832 ms
icon_chongzhi.jpg
863 ms
icon_tixian.jpg
867 ms
icon_myclass.jpg
1030 ms
icon_awardplan.jpg
1033 ms
icon_convert.jpg
1032 ms
icon_enterprise.jpg
1063 ms
maps.png
1092 ms
button_ksbm.gif
1102 ms
button_wygz.png
1290 ms
button_tj.jpg
1330 ms
1.jpg
1520 ms
2.jpg
1329 ms
gaba.png
1331 ms
pa
706 ms
pa
707 ms
header_bj.png
1563 ms
login.gif
707 ms
icon_down.jpg
1516 ms
ksdh_q.jpg
1538 ms
nav_bj.jpg
1458 ms
bg_top.gif
1448 ms
bg_main.gif
1589 ms
td_xk.png
1539 ms
td_xztj.png
1493 ms
113227fvvlivl4hi7rthn2.jpg
1393 ms
icon_1.png
1364 ms
190x40_line.jpg
1336 ms
icon_2.png
1526 ms
230x40_line.jpg
1530 ms
bg_end.gif
2001 ms
h.js
1526 ms
button_111.gif
883 ms
button_111.gif
901 ms
button_111.gif
914 ms
site_left.php
562 ms
site_right.php
276 ms
hm.gif
312 ms
user_visited.php
266 ms
fingerprint.js
236 ms
tel.jpg
250 ms
ewm.jpg
457 ms
it.dataguru.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.
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
Form elements do not have associated labels
Links do not have a discernible name
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
it.dataguru.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
it.dataguru.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
Tap targets are not sized appropriately
ZH
N/A
GB2312
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise It.dataguru.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 It.dataguru.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.
it.dataguru.cn
Open Graph description is not detected on the main page of It Dataguru. 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: