Access ime.cas.cn. 中国科学院微电子研究所

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.7 s

100/100

10%

ime.cas.cn

1331 ms

index.css

504 ms

www_all.css

759 ms

swfobject_modified.js

509 ms

caidan.js

515 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 81% of them (43 requests) were addressed to the original Ime.cas.cn, 4% (2 requests) were made to Tracker2.cas.cn and 4% (2 requests) were made to Dcs.conac.cn. The less responsive or slowest element that took the longest time to load (8.8 sec) relates to the external source Dcs.conac.cn.

Content Size

1.6 MB

After Optimization

1.2 MB

In fact, the total size of Ime.cas.cn main page is 1.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 63.2 kB

Original 76.7 kB
After minification 62.9 kB
After compression 13.4 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. This page needs HTML code to be minified as it can gain 13.7 kB, which is 18% 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 63.2 kB or 82% of the original size.

Image Optimization

-11%

Potential reduce by 129.2 kB

Original 1.2 MB
After minification 1.1 MB

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, Ime Cas needs image optimization as it can save up to 129.2 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 205.1 kB

Original 287.3 kB
After minification 218.3 kB
After compression 82.1 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 205.1 kB or 71% of the original size.

CSS Optimization

-83%

Potential reduce by 30.5 kB

Original 36.5 kB
After minification 32.0 kB
After compression 6.0 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. Ime.cas.cn needs all CSS files to be minified and compressed as it can save up to 30.5 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ime 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 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

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.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ime.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 Ime.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.

Social Sharing Optimization

ime.cas.cn

Open Graph description is not detected on the main page of Ime 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

中国科学院微电子研究所

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

ime.cas.cn

index.css

www_all.css

swfobject_modified.js

caidan.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

ime.cas.cn

index.css

www_all.css

swfobject_modified.js

caidan.js

sinaflash.js

wbtrk2.js

www_all.js

sy_top01.jpg

xiankuang.jpg

b04.jpg

get_flash_player.gif

W020160316635107648142.jpg

right01-1.jpg

right03-1.jpg

right07-1.jpg

right06-1.jpg

wlw.jpg

EDA-120111.jpg

jcdlxdgyyfzx-120144.jpg

xtfzyjcyfzx-120145.jpg

zkxxswccqyfzx-120146.jpg

txyxxgcyfzx-120148.jpg

xnyqcdzyfzx-120149.jpg

jkdzyfzx120150.jpg

zngzyfzx-120151.jpg

gqjyjcyfzx-120152.jpg

gpgyqjyjcyfzx-120153.jpg

wdzyqsbyfzx-120154.jpg

wzsqjyjcjszdsys-120155.jpg

sxxd.jpg

sanyansanshi.jpg

btton.jpg

d02.jpg

fm03.jpg

sy_top03.jpg

aa01.jpg

dian01.jpg

aa02.jpg

b03.jpg

aa06.jpg

dian02.gif

aa05.jpg