9.4 sec in total
1.5 sec
7.7 sec
222 ms
Welcome to jd37.com homepage info - get ready to check Jd 37 best content for China right away, or after learning these important things about jd37.com
机电商情网(www.jd37.com)是中国专业的机电行业门户网站,是机电产品供应商及采购商的网上贸易电子商务交易平台,是免费的B2B行业网站信息发布平台,是机电工程技术人员的交流平台,为机电企业打通上下游产业链。
Visit jd37.comWe analyzed Jd37.com page load time and found that the first response time was 1.5 sec and then it took 7.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
jd37.com performance score
name
value
score
weighting
Value3.0 s
49/100
10%
Value3.8 s
54/100
25%
Value7.5 s
27/100
10%
Value110 ms
98/100
30%
Value0
100/100
15%
Value5.1 s
75/100
10%
1511 ms
1319 ms
433 ms
441 ms
455 ms
Our browser made a total of 63 requests to load all elements on the main page. We found that 97% of them (61 requests) were addressed to the original Jd37.com, 2% (1 request) were made to Wpa.qq.com and 2% (1 request) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Jd37.com.
Page size can be reduced by 317.0 kB (36%)
883.7 kB
566.7 kB
In fact, the total size of Jd37.com main page is 883.7 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 552.8 kB which makes up the majority of the site volume.
Potential reduce by 157.4 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 157.4 kB or 87% of the original size.
Potential reduce by 69.7 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, Jd 37 needs image optimization as it can save up to 69.7 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 87.1 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 87.1 kB or 66% of the original size.
Potential reduce by 2.9 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. Jd37.com needs all CSS files to be minified and compressed as it can save up to 2.9 kB or 17% of the original size.
Number of requests can be reduced by 18 (30%)
60
42
The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jd 37. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.
jd37.com
1511 ms
www.jd37.com
1319 ms
bootstrap.css
433 ms
basic.css
441 ms
index.css
455 ms
lang.js
465 ms
config.js
469 ms
jquery.min.js
941 ms
jquery.SuperSlide.2.1.1.js
657 ms
common.js
666 ms
page.js
696 ms
jquery.lazyload.js
704 ms
index.js
674 ms
pa
845 ms
home_c40000_14.png
219 ms
151149151.png
223 ms
jd37-qr.png
248 ms
15411233622093.jpg
713 ms
spic-1.png
248 ms
spic-2.png
465 ms
spic-3.png
446 ms
15412360652055.png.middle.png
665 ms
16002490622655.jpg.middle.jpg
723 ms
15184624634081.jpg.middle.jpg
483 ms
13563112649917.jpg.middle.jpg
660 ms
18591573653460.jpg.middle.jpg
693 ms
13394770649933.jpg.middle.jpg
717 ms
10231692622297.jpg.middle.jpg
875 ms
09523927651149.png.middle.png
883 ms
09320061655392.jpg.middle.jpg
921 ms
08363329653895.jpg.middle.jpg
938 ms
17003314655357.jpg.middle.jpg
953 ms
16240086549271.jpg.middle.jpg
969 ms
11064325635477.jpg.middle.jpg
1087 ms
10210762645148.png.middle.png
1101 ms
09245167591404.jpg.middle.jpg
1146 ms
15582731630472.jpg.middle.jpg
1170 ms
10472338652751.jpg.middle.jpg
1186 ms
09000928620764.jpg.middle.jpg
1203 ms
11414953655027.jpg.middle.jpg
1301 ms
09205675594566.png.middle.png
1317 ms
09130280594064.jpg.middle.jpg
1371 ms
11164043626111.jpg.middle.jpg
1403 ms
21060369260423.jpg.middle.jpg
1419 ms
mobile-phone_c40000_14.png
1394 ms
plus-square-o_666666_14.png
1468 ms
th-list_ffffff_14.png
1487 ms
jiantou1.png
1551 ms
nav_div_bg.jpg
1587 ms
prev-bg.png
1607 ms
next-bg.png
1471 ms
icon-jl-pub-bg.png
1519 ms
icon-zp-pub-bg.png
1513 ms
pencil_ffffff_14.png
1582 ms
task.js.php
2523 ms
user_ffffff_14.png
1429 ms
arrow-up_38970e_14.png
1441 ms
p-next-bg1.png
1298 ms
p-line-bg.png
1314 ms
index-p-box-bg.jpg
1420 ms
icon-link-sub-bg.png
1416 ms
button_old_41.gif
1005 ms
qq.gif
214 ms
jd37.com 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Form elements do not have associated labels
Links do not have a discernible name
jd37.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
jd37.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 uses legible font sizes
Tap targets are not sized appropriately
ZH
EN
GBK
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jd37.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Jd37.com main page’s claimed encoding is gbk. 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.
jd37.com
Open Graph description is not detected on the main page of Jd 37. 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: