Tools & Wizards About Us
stellasia.github.io screenshot

Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

stellasia.github.io

Estelle Scifo - Data Scientist - Graph Machine Learning

Page Load Speed

469 ms in total

First Response

15 ms

Resources Loaded

301 ms

Page Rendered

153 ms

stellasia.github.io screenshot

About Website

Visit stellasia.github.io now to see the best up-to-date Stellasia Github content for China and also check out these interesting facts you probably never knew about stellasia.github.io

This is my personal website. Talking about Data, Science, Data Science, Python, Graphs, Neo4j and other cool things.

Visit stellasia.github.io

Key Findings

We analyzed Stellasia.github.io page load time and found that the first response time was 15 ms and then it took 454 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

stellasia.github.io performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value2.1 s

99/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.084

93/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

Network Requests Diagram

stellasia.github.io

15 ms

stellasia.github.io

45 ms

styles.css

14 ms

syntax.css

26 ms

MathJax.js

28 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 57% of them (8 requests) were addressed to the original Stellasia.github.io, 14% (2 requests) were made to Cdnjs.cloudflare.com and 14% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (94 ms) belongs to the original domain Stellasia.github.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.3 kB (3%)

Content Size

620.3 kB

After Optimization

600.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Stellasia.github.io main page is 620.3 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. 20% of websites need less resources to load. Images take 574.6 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 16.9 kB

  • Original 23.5 kB
  • After minification 21.6 kB
  • After compression 6.5 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 16.9 kB or 72% of the original size.

Image Optimization

-1%

Potential reduce by 3.3 kB

  • Original 574.6 kB
  • After minification 571.3 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. Stellasia Github images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 64 B

  • Original 22.3 kB
  • After minification 22.3 kB
  • After compression 22.2 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 4 (33%)

Requests Now

12

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stellasia Github. 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.

Network Requests Diagram

stellasia.github.io

stellasia.github.io

15 ms

stellasia.github.io

stellasia.github.io

45 ms

styles.css

styles.css

14 ms

syntax.css

syntax.css

26 ms

MathJax.js

MathJax.js

28 ms

analytics.js

analytics.js

24 ms

TeX-AMS-MML_HTMLorMML.js

TeX-AMS-MML_HTMLorMML.js

53 ms

avatar.jpg

avatar.jpg

84 ms

neomap-screenshot.jpg

neomap-screenshot.jpg

49 ms

51vPQ6l1RdL.jpg

51vPQ6l1RdL.jpg

86 ms

1853654-original.png

1853654-original.png

94 ms

collect

collect

40 ms

js

js

92 ms

accessibility-menu.js

accessibility-menu.js

62 ms

Accessibility Review

stellasia.github.io accessibility score

56

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

stellasia.github.io 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

stellasia.github.io SEO score

54

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stellasia.github.io can be misinterpreted by Google and other search engines. Our service has detected that English 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 Stellasia.github.io 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

stellasia.github.io

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