22.6 sec in total
3.8 sec
18.7 sec
201 ms
Visit cncal.com now to see the best up-to-date Cncal content for China and also check out these interesting facts you probably never knew about cncal.com
仪器网(cncal.com)是一个专注于仪器信息领域知识探索和见解分享的专业社区,成员主要来自计量检测科研人员,包括计量员、计量主管、仪表工程师、质检经理、计量检测员、检定员、校准工程师等为你的职业成长之路全程排忧解难,更有大量志同道合的仪器爱好者伴你共同成长,你可以在这里提出任何与仪器使用,计量测量相关的问题,并得到同行的专业解答和评价。
Visit cncal.comWe analyzed Cncal.com page load time and found that the first response time was 3.8 sec and then it took 18.9 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.
cncal.com performance score
name
value
score
weighting
Value3.6 s
32/100
10%
Value3.6 s
61/100
25%
Value6.2 s
43/100
10%
Value220 ms
88/100
30%
Value0
100/100
15%
Value4.4 s
83/100
10%
3764 ms
1961 ms
657 ms
3667 ms
851 ms
Our browser made a total of 41 requests to load all elements on the main page. We found that all of those requests were addressed to Cncal.com and no external sources were called. The less responsive or slowest element that took the longest time to load (10.4 sec) belongs to the original domain Cncal.com.
Page size can be reduced by 366.0 kB (72%)
507.7 kB
141.7 kB
In fact, the total size of Cncal.com main page is 507.7 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. 15% of websites need less resources to load. Javascripts take 211.3 kB which makes up the majority of the site volume.
Potential reduce by 34.7 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 34.7 kB or 85% of the original size.
Potential reduce by 9.7 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, Cncal needs image optimization as it can save up to 9.7 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 156.4 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 156.4 kB or 74% of the original size.
Potential reduce by 165.2 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. Cncal.com needs all CSS files to be minified and compressed as it can save up to 165.2 kB or 83% of the original size.
Number of requests can be reduced by 10 (26%)
38
28
The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cncal. 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 5 to 1 for CSS and as a result speed up the page load time.
cncal.com
3764 ms
bootstrap.css
1961 ms
icon.css
657 ms
common.css
3667 ms
link.css
851 ms
style.css
982 ms
jquery.2.js
6838 ms
jquery.form.js
3553 ms
plug-in_module.js
3264 ms
aws.js
3654 ms
aw_template.js
3591 ms
app.js
3878 ms
compatibility.js
3918 ms
50_avatar_max.jpg
3931 ms
bg.gif
1597 ms
logo.png
329 ms
topic-mid-img.png
331 ms
avatar-mid-img.png
1924 ms
42_avatar_max.jpg
6307 ms
7b866767f8e7c324e3c6f4840719b837_50_50.jpg
6724 ms
50f1407189ae2aee1fda026292fe0eff_50_50.jpg
3433 ms
394b14b4dd775ebc61bceb85446451f8_50_50.jpg
3448 ms
f0c062c829c63c3695a2d515d211ba1d_50_50.jpg
6738 ms
9eab98896a938d76427717acef401f72_50_50.jpg
6979 ms
5c2dea418f25e124505bbe5d418d78d8_50_50.jpg
4253 ms
41640daa24952106520c03c8790d9b0c_50_50.jpg
9692 ms
73bd665c590ba6e118fd8462fef1f237_50_50.jpg
6334 ms
8427c4479a5ba3b5a1513d847c8744ad_50_50.jpg
6641 ms
42_avatar_mid.jpg
6680 ms
78_avatar_mid.jpg
9258 ms
67_avatar_mid.jpg
9831 ms
93_avatar_mid.jpg
7149 ms
50_avatar_mid.jpg
7614 ms
03_avatar_mid.jpg
10357 ms
01_avatar_mid.jpg
7575 ms
03_avatar_mid.jpg
8001 ms
24_avatar_mid.jpg
8054 ms
87_avatar_mid.jpg
8428 ms
25_avatar_mid.jpg
8493 ms
icomoon.woff
1983 ms
icomoon.ttf
1305 ms
cncal.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.
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
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
cncal.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
cncal.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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cncal.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 Cncal.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.
cncal.com
Open Graph description is not detected on the main page of Cncal. 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: