Tools & Wizards About Us
jupyter.org screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

jupyter.org

Project Jupyter | Home

Page Load Speed

762 ms in total

First Response

12 ms

Resources Loaded

240 ms

Page Rendered

510 ms

jupyter.org screenshot

About Website

Visit jupyter.org now to see the best up-to-date Jupyter content for China and also check out these interesting facts you probably never knew about jupyter.org

The Jupyter Notebook is a web-based interactive computing platform. The notebook combines live code, equations, narrative text, visualizations, interactive dashboards and other media.

Visit jupyter.org

Key Findings

We analyzed Jupyter.org page load time and found that the first response time was 12 ms and then it took 750 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

jupyter.org performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

96/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

jupyter.org

12 ms

jupyter.org

19 ms

bootstrap.css

11 ms

main.css

10 ms

bootstrap-native.min.js

22 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that all of those requests were addressed to Jupyter.org and no external sources were called. The less responsive or slowest element that took the longest time to load (118 ms) belongs to the original domain Jupyter.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 19.9 kB (4%)

Content Size

446.9 kB

After Optimization

427.0 kB

  • HTML
  • Images

In fact, the total size of Jupyter.org main page is 446.9 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. 35% of websites need less resources to load. Images take 422.6 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 19.9 kB

  • Original 24.3 kB
  • After minification 19.3 kB
  • After compression 4.4 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 5.0 kB, which is 21% 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 19.9 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 422.6 kB
  • After minification 422.6 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. Jupyter images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

54

After Optimization

54

  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jupyter. According to our analytics all requests are already optimized.

Network Requests Diagram

jupyter.org

jupyter.org

12 ms

jupyter.org

jupyter.org

19 ms

bootstrap.css

bootstrap.css

11 ms

main.css

main.css

10 ms

bootstrap-native.min.js

bootstrap-native.min.js

22 ms

rectanglelogo-greytext-orangebody-greymoons.svg

rectanglelogo-greytext-orangebody-greymoons.svg

10 ms

circle1.svg

circle1.svg

24 ms

circle2.svg

circle2.svg

14 ms

circle3.svg

circle3.svg

32 ms

main-logo.svg

main-logo.svg

20 ms

white-background.svg

white-background.svg

22 ms

labpreview.png

labpreview.png

41 ms

jupyterpreview.png

jupyterpreview.png

30 ms

language.svg

language.svg

39 ms

share.svg

share.svg

46 ms

widget.svg

widget.svg

53 ms

spark.svg

spark.svg

35 ms

hublogo.svg

hublogo.svg

58 ms

line.svg

line.svg

66 ms

authentication.svg

authentication.svg

44 ms

central.svg

central.svg

45 ms

container.svg

container.svg

59 ms

data.svg

data.svg

50 ms

voilapreview.png

voilapreview.png

84 ms

anaconda.svg

anaconda.svg

83 ms

ayasdi.svg

ayasdi.svg

87 ms

Berkeley.svg

Berkeley.svg

102 ms

bloomberg.svg

bloomberg.svg

64 ms

brynmawr.svg

brynmawr.svg

111 ms

calpoly.svg

calpoly.svg

71 ms

clemson.svg

clemson.svg

78 ms

cocalc.svg

cocalc.svg

85 ms

codeneuro.svg

codeneuro.svg

84 ms

tdi.svg

tdi.svg

90 ms

washington.svg

washington.svg

89 ms

google.svg

google.svg

111 ms

IBM.svg

IBM.svg

99 ms

janelia.svg

janelia.svg

93 ms

latimes.svg

latimes.svg

97 ms

michigan-state.svg

michigan-state.svg

104 ms

Microsoft.svg

Microsoft.svg

116 ms

NASA.svg

NASA.svg

102 ms

netapp.svg

netapp.svg

115 ms

nsite.svg

nsite.svg

118 ms

NYU.svg

NYU.svg

96 ms

oracle.svg

oracle.svg

104 ms

oreilly.svg

oreilly.svg

106 ms

quantstack.svg

quantstack.svg

107 ms

rackspace.svg

rackspace.svg

98 ms

sheffield.svg

sheffield.svg

103 ms

carpentry.svg

carpentry.svg

116 ms

soundcloud.svg

soundcloud.svg

95 ms

notebook-format.svg

notebook-format.svg

101 ms

protocol.svg

protocol.svg

104 ms

kernel.svg

kernel.svg

103 ms

rectanglelogo-blacktext-blackbody-blackplanets.svg

rectanglelogo-blacktext-blackbody-blackplanets.svg

99 ms

Accessibility Review

jupyter.org accessibility score

100

Accessibility Issues

Best Practices

jupyter.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

jupyter.org SEO score

99

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

jupyter.org

Open Graph data is detected on the main page of Jupyter. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: