Tools & Wizards About Us
calypso.cn screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

calypso.cn

[CALYPSO - An Efficient Structure Prediction Method and Computer Software]

Page Load Speed

6.7 sec in total

First Response

1.6 sec

Resources Loaded

4.9 sec

Page Rendered

291 ms

calypso.cn screenshot

About Website

Welcome to calypso.cn homepage info - get ready to check CALYPSO best content right away, or after learning these important things about calypso.cn

Visit calypso.cn

Key Findings

We analyzed Calypso.cn page load time and found that the first response time was 1.6 sec and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

calypso.cn performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

80/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.3 s

73/100

10%

Network Requests Diagram

calypso.cn

1600 ms

tabler.min.css

45 ms

tabler.min.js

68 ms

global.css

215 ms

css2

35 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 76% of them (28 requests) were addressed to the original Calypso.cn, 11% (4 requests) were made to Clustrmaps.com and 5% (2 requests) were made to Unpkg.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Calypso.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 149.7 kB (15%)

Content Size

980.1 kB

After Optimization

830.5 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Calypso.cn main page is 980.1 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. 40% of websites need less resources to load. Images take 868.1 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 89.5 kB

  • Original 109.7 kB
  • After minification 105.0 kB
  • After compression 20.1 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 89.5 kB or 82% of the original size.

Image Optimization

-7%

Potential reduce by 59.5 kB

  • Original 868.1 kB
  • After minification 808.6 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. CALYPSO images are well optimized though.

CSS Optimization

-27%

Potential reduce by 637 B

  • Original 2.4 kB
  • After minification 2.4 kB
  • After compression 1.7 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. Calypso.cn needs all CSS files to be minified and compressed as it can save up to 637 B or 27% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

35

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CALYPSO. According to our analytics all requests are already optimized.

Network Requests Diagram

calypso.cn

calypso.cn

1600 ms

tabler.min.css

tabler.min.css

45 ms

tabler.min.js

tabler.min.js

68 ms

global.css

global.css

215 ms

css2

css2

35 ms

map.js

map.js

67 ms

background.png

background.png

215 ms

bnl.png

bnl.png

418 ms

bnm.png

bnm.png

419 ms

bnr.png

bnr.png

421 ms

CALYPSO_LOGO.png

CALYPSO_LOGO.png

634 ms

bice.png

bice.png

848 ms

wzzz.png

wzzz.png

428 ms

lb1.png

lb1.png

626 ms

lb2.png

lb2.png

627 ms

lb3.png

lb3.png

630 ms

bbg.png

bbg.png

641 ms

gettingcalypso.png

gettingcalypso.png

1044 ms

art.jpg

art.jpg

1044 ms

cnt.jpg

cnt.jpg

2521 ms

csf.png

csf.png

1057 ms

wb.png

wb.png

2773 ms

co2.png

co2.png

3029 ms

s1.jpg

s1.jpg

1252 ms

s2.jpg

s2.jpg

1252 ms

s3.jpg

s3.jpg

2389 ms

s4.jpg

s4.jpg

1461 ms

s5.jpg

s5.jpg

2320 ms

s6.jpg

s6.jpg

1669 ms

s7.jpg

s7.jpg

1878 ms

s8.jpg

s8.jpg

2087 ms

%E5%A4%87%E6%A1%88%E5%9B%BE%E6%A0%87.png

%E5%A4%87%E6%A1%88%E5%9B%BE%E6%A0%87.png

2296 ms

map.js

map.js

72 ms

jquery-1.12.4.min.js

jquery-1.12.4.min.js

15 ms

widget_call_home.js

widget_call_home.js

86 ms

bg-w_200.png

bg-w_200.png

44 ms

map

map

59 ms

Accessibility Review

calypso.cn accessibility score

81

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.

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

calypso.cn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

calypso.cn SEO score

77

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Calypso.cn can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Calypso.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

calypso.cn

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