16.7 sec in total
1.3 sec
15.2 sec
271 ms
Welcome to genetics.cas.cn homepage info - get ready to check Genetics Cas best content for China right away, or after learning these important things about genetics.cas.cn
中国科学院遗传与发育生物学研究所
Visit genetics.cas.cnWe analyzed Genetics.cas.cn page load time and found that the first response time was 1.3 sec and then it took 15.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
genetics.cas.cn performance score
name
value
score
weighting
Value1.5 s
96/100
10%
Value14.1 s
0/100
25%
Value18.5 s
0/100
10%
Value30 ms
100/100
30%
Value0.49
17/100
15%
Value1.9 s
100/100
10%
1268 ms
499 ms
501 ms
512 ms
498 ms
Our browser made a total of 27 requests to load all elements on the main page. We found that 78% of them (21 requests) were addressed to the original Genetics.cas.cn, 7% (2 requests) were made to Tracker2.cas.cn and 7% (2 requests) were made to Dcs.conac.cn. The less responsive or slowest element that took the longest time to load (11.8 sec) relates to the external source Dcs.conac.cn.
Page size can be reduced by 98.5 kB (52%)
190.1 kB
91.5 kB
In fact, the total size of Genetics.cas.cn main page is 190.1 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. 15% of websites need less resources to load. Images take 70.0 kB which makes up the majority of the site volume.
Potential reduce by 49.5 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 49.5 kB or 84% of the original size.
Potential reduce by 4.8 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. Genetics Cas images are well optimized though.
Potential reduce by 39.9 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 39.9 kB or 72% of the original size.
Potential reduce by 4.3 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. Genetics.cas.cn needs all CSS files to be minified and compressed as it can save up to 4.3 kB or 77% of the original size.
Number of requests can be reduced by 16 (62%)
26
10
The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Genetics Cas. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
genetics.cas.cn
1268 ms
cnq01style.css
499 ms
changimages_1.js
501 ms
AC_RunActiveContent_1.js
512 ms
sinaflash.js
498 ms
wbtrk2.js
764 ms
cnq01body_shade.jpg
257 ms
cnq01logo.gif
510 ms
cnq01menu_left.gif
250 ms
cnq01menu_right.gif
260 ms
search.gif
478 ms
W020090924334390257261.jpg
745 ms
cnq01blue_point_1.gif
507 ms
cnq01bottom_logo.gif
518 ms
cnq01menu_bg.gif
519 ms
cnq01banner_bg.jpg
958 ms
cnq01left_title_1.jpg
730 ms
cnq01right_title_1.jpg
731 ms
cnq01yellow_arrow.gif
741 ms
cnq01yellow_point.gif
567 ms
gif-0380.gif
759 ms
__wbtrk.gif
273 ms
cnq01blueline.gif
257 ms
CA330000000604263700002.js
11815 ms
gs.gif
743 ms
gs.gif
1258 ms
blue.png
1321 ms
genetics.cas.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
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.
genetics.cas.cn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
genetics.cas.cn SEO score
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 Genetics.cas.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 Genetics.cas.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.
genetics.cas.cn
Open Graph description is not detected on the main page of Genetics Cas. 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: