37.8 sec in total
3.8 sec
33.8 sec
202 ms
Click here to check amazing Nst content. Otherwise, check out these important facts you probably never knew about nst.cn
南京能斯特仪器有限公司是以科技人员为主体、集科工贸一体的现代企业;是专门从事气体氧含量、露点水分和其他气体成分的定量分析检测的专业制造商。
Visit nst.cnWe analyzed Nst.cn page load time and found that the first response time was 3.8 sec and then it took 34 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
nst.cn performance score
name
value
score
weighting
Value2.4 s
70/100
10%
Value13.2 s
0/100
25%
Value9.1 s
14/100
10%
Value40 ms
100/100
30%
Value0.094
91/100
15%
Value3.3 s
94/100
10%
3834 ms
5710 ms
3689 ms
4812 ms
9306 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that all of those requests were addressed to Nst.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (13.5 sec) belongs to the original domain Nst.cn.
Page size can be reduced by 194.3 kB (49%)
398.1 kB
203.8 kB
In fact, the total size of Nst.cn main page is 398.1 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. 20% of websites need less resources to load. Images take 163.1 kB which makes up the majority of the site volume.
Potential reduce by 44.3 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 7.9 kB, which is 15% 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 44.3 kB or 86% of the original size.
Potential reduce by 3.1 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. Nst images are well optimized though.
Potential reduce by 24.0 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 24.0 kB or 58% of the original size.
Potential reduce by 122.9 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. Nst.cn needs all CSS files to be minified and compressed as it can save up to 122.9 kB or 86% of the original size.
Number of requests can be reduced by 29 (47%)
62
33
The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nst. 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 24 to 1 for CSS and as a result speed up the page load time.
nst.cn
3834 ms
www.nst.cn
5710 ms
page_index.css
3689 ms
jquery.js
4812 ms
lib.min.js
9306 ms
FrontProducts_generalSearch01.js
670 ms
FrontProducts_generalSearch01.js
1102 ms
FrontProducts_list01.js
2815 ms
FrontNews_list01.js
3694 ms
FrontNews_list01.js
1779 ms
common.css
662 ms
borders.css
2151 ms
content_index.css
1245 ms
layout_index.css
1189 ms
page_index_specifies.css
1294 ms
page_index_products.css
1859 ms
page_index_news.css
1869 ms
ui-all.css
1287 ms
button.css
2483 ms
cetop.css
1883 ms
FrontSpecifies_show01-d1_c1.css
1247 ms
FrontProducts_list01-d2_c1_01.css
2464 ms
FrontProducts_list01_view2-d1_c1.css
1466 ms
FrontProducts_list01_view3-d1_c1.css
1384 ms
FrontProducts_list01-d1_c1.css
3160 ms
FrontProducts_generalSearch01-d1_c1_01.css
2067 ms
FrontNews_list01-d1_c1.css
2636 ms
border.css
5328 ms
border.css
2473 ms
border.css
3411 ms
border.css
3019 ms
border.css
3152 ms
border.css
4117 ms
bg.jpg
1413 ms
logo.jpg
1164 ms
tel.jpg
1224 ms
menu_bg.jpg
1366 ms
menu.gif
5497 ms
index_15.jpg
2299 ms
name1.jpg
6045 ms
index_19.jpg
2013 ms
4a23b03f-86d9-4f6b-b689-348e3f89a79f.png
6793 ms
0c0a3bc8-84e9-4a5e-9664-fea60c8b3db6.jpg
5150 ms
9420e189-8f8b-43be-9c50-b9b016bdc7c8.jpg
5413 ms
9ba97037-25f7-4ae0-86e3-14cf1a1b7130.jpg
3550 ms
647f9642-e811-4c19-96ba-8e63c175396d.jpg
5008 ms
c63f2cdb-5ea5-4fef-8eb5-b5e7250772dc.jpg
6704 ms
a86d6293-4bad-4e7a-beec-a90320331803.jpg
8034 ms
b6933b34-acef-4bca-929b-24732b6ec6a0.jpg
7124 ms
1baf82d5-df1b-4c3c-b9c2-f979fe981f4f.jpg
11031 ms
70a8e808-a4dc-425b-b9fa-ff1825b2e99b.jpg
8737 ms
24edd240-f11a-4fad-9339-14ed476ef7ad.jpg
8018 ms
noimage.jpg
7498 ms
3b220f92-6902-4664-82b9-3cce1180689d.jpg
10100 ms
94f38d24-edd9-4e16-93cd-fc0ded092cc6.jpg
10422 ms
c5250b8a-2a31-4e44-b5f5-683ae1ef4aa2.jpg
8924 ms
honor1.jpg
10134 ms
icon1.jpg
9932 ms
index_21.jpg
10830 ms
index_23.jpg
11185 ms
index_17.jpg
13500 ms
icon-09.gif
10789 ms
index_25.jpg
12061 ms
navigator.png
11595 ms
nst.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
Links do not have a discernible name
nst.cn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
nst.cn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nst.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 Nst.cn 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.
nst.cn
Open Graph description is not detected on the main page of Nst. 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: