11.5 sec in total
1.6 sec
9.2 sec
708 ms
Click here to check amazing Dzkbw content for China. Otherwise, check out these important facts you probably never knew about dzkbw.com
电子课本网是教材更新快、教科书齐全的电子课本导航网站,提供人教版、北师大、苏教版、教科版、浙教版、鲁科版、仁爱版英语等电子课本在线阅读及下载导航。
Visit dzkbw.comWe analyzed Dzkbw.com page load time and found that the first response time was 1.6 sec and then it took 9.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
dzkbw.com performance score
name
value
score
weighting
Value4.0 s
23/100
10%
Value8.1 s
2/100
25%
Value11.5 s
5/100
10%
Value2,240 ms
6/100
30%
Value0
100/100
15%
Value13.7 s
10/100
10%
1579 ms
377 ms
998 ms
1334 ms
203 ms
Our browser made a total of 59 requests to load all elements on the main page. We found that 64% of them (38 requests) were addressed to the original Dzkbw.com, 8% (5 requests) were made to Pagead2.googlesyndication.com and 8% (5 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (6 sec) relates to the external source Bdimg.share.baidu.com.
Page size can be reduced by 179.7 kB (23%)
765.8 kB
586.1 kB
In fact, the total size of Dzkbw.com main page is 765.8 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. 45% of websites need less resources to load. Images take 521.1 kB which makes up the majority of the site volume.
Potential reduce by 73.7 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 73.7 kB or 89% of the original size.
Potential reduce by 60.5 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, Dzkbw needs image optimization as it can save up to 60.5 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 25.5 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 25.5 kB or 19% of the original size.
Potential reduce by 20.0 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. Dzkbw.com needs all CSS files to be minified and compressed as it can save up to 20.0 kB or 81% of the original size.
Number of requests can be reduced by 11 (19%)
58
47
The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dzkbw. 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.
www.dzkbw.com
1579 ms
css.css
377 ms
jquery.min.js
998 ms
jquery.lazyload.min.js
1334 ms
i.js
203 ms
0
128 ms
hm.js
1103 ms
logo.png
192 ms
rjb.jpg
375 ms
bsd.jpg
499 ms
copyright.jpg
547 ms
share.js
6033 ms
navicon.gif
98 ms
i_bg.png
171 ms
ibg.png
434 ms
adsbygoogle.js
9 ms
fl_bg.gif
146 ms
l247.png
219 ms
mblist_bg.png
278 ms
ca-pub-7583085801483133.js
124 ms
zrt_lookup.html
182 ms
show_ads_impl.js
113 ms
Cover.jpg
252 ms
Cover.jpg
257 ms
Cover.jpg
257 ms
Cover.jpg
283 ms
Cover.jpg
266 ms
Cover.jpg
313 ms
Cover.jpg
314 ms
Cover.jpg
319 ms
Cover.jpg
329 ms
Cover.jpg
353 ms
Cover.jpg
373 ms
Cover.jpg
375 ms
Cover.jpg
375 ms
Cover.jpg
396 ms
Cover.jpg
388 ms
Cover.jpg
421 ms
Cover.jpg
434 ms
Cover.gif
498 ms
Cover.jpg
436 ms
Cover.jpg
450 ms
Cover.jpg
465 ms
Cover.bmp
495 ms
Cover.jpg
495 ms
Cover.jpg
500 ms
ads
730 ms
osd.js
20 ms
ads
821 ms
ads
705 ms
8590802109376037896
103 ms
abg.js
44 ms
m_js_controller.js
63 ms
googlelogo_color_112x36dp.png
33 ms
18377033033132067585
85 ms
s
45 ms
x_button_blue2.png
49 ms
Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js
22 ms
hm.gif
442 ms
dzkbw.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-*] attributes do not match their roles
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
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
dzkbw.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
dzkbw.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
ZH
N/A
GB2312
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dzkbw.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 Dzkbw.com 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.
dzkbw.com
Open Graph description is not detected on the main page of Dzkbw. 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: