Tools & Wizards About Us
kepu.net.cn screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

kepu.net.cn

中国科普博览

Page Load Speed

3.3 sec in total

First Response

1.1 sec

Resources Loaded

2.2 sec

Page Rendered

0 ms

kepu.net.cn screenshot

About Website

Visit kepu.net.cn now to see the best up-to-date Kepu content for China and also check out these interesting facts you probably never knew about kepu.net.cn

中国科普博览（简称博览），中国科学院权威出品、专业打造的中科院科普云平台，提供高品质的科普教育与科学文化服务， 共享人类科学，与科学同行。博览以科研为依托，汇聚百余所科研机构的高端科学资源，聚焦国内外前沿科技和科学突破；以专业为基 础，云集千余位各科学领域的科学大家，洞察热点和生活中的科学真相；以创新为引领，讲述当代科技、教育与文化等领域创新的非凡 思想和生命故事，传播有温度有态度的新科学观。

Visit kepu.net.cn

Key Findings

We analyzed Kepu.net.cn page load time and found that the first response time was 1.1 sec and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

kepu.net.cn performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value12.3 s

3/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.383

27/100

15%

TTI (Time to Interactive)

Value6.3 s

60/100

10%

Network Requests Diagram

kepu.net.cn

1085 ms

www.kepu.net.cn

1107 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Kepu.net.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Kepu.net.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 8 B (8%)

Content Size

104 B

After Optimization

96 B

  • HTML

In fact, the total size of Kepu.net.cn main page is 104 B. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. HTML takes 104 B which makes up the majority of the site volume.

HTML Optimization

-8%

Potential reduce by 8 B

  • Original 104 B
  • After minification 104 B
  • After compression 96 B

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. This web page is already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

kepu.net.cn

kepu.net.cn

1085 ms

www.kepu.net.cn

www.kepu.net.cn

1107 ms

Accessibility Review

kepu.net.cn accessibility score

45

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

<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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

kepu.net.cn best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

kepu.net.cn SEO score

81

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

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

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kepu.net.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 Kepu.net.cn main page’s claimed encoding is iso-8859-1. 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.

Social Sharing Optimization

kepu.net.cn

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