Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

socialcars.github.io

SocialCars - Development and Documentation Website of DFG Research Training Group 1931

Page Load Speed

378 ms in total

First Response

16 ms

Resources Loaded

247 ms

Page Rendered

115 ms

socialcars.github.io screenshot

About Website

Welcome to socialcars.github.io homepage info - get ready to check Social Cars Github best content for China right away, or after learning these important things about socialcars.github.io

The focus of SocialCars is on significantly improving future urban road traffic, through cooperative approaches. “How can individual travelers make optimal use of the transport infrastructure, so that...

Visit socialcars.github.io

Key Findings

We analyzed Socialcars.github.io page load time and found that the first response time was 16 ms and then it took 362 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

socialcars.github.io performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

93/100

25%

SI (Speed Index)

Value1.5 s

100/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.323

36/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

socialcars.github.io

16 ms

socialcars.github.io

46 ms

jquery.min.js

49 ms

MathJax.js

41 ms

hammer.min.js

24 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Socialcars.github.io and no external sources were called. The less responsive or slowest element that took the longest time to load (89 ms) belongs to the original domain Socialcars.github.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 17.0 kB (8%)

Content Size

216.4 kB

After Optimization

199.3 kB

In fact, the total size of Socialcars.github.io main page is 216.4 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. 25% of websites need less resources to load. Images take 194.2 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 17.0 kB

  • Original 22.2 kB
  • After minification 22.0 kB
  • After compression 5.2 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 17.0 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 194.2 kB
  • After minification 194.2 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. Social Cars Github images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 7 (41%)

Requests Now

17

After Optimization

10

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Social Cars 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 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

socialcars.github.io accessibility score

88

Accessibility Issues

ARIA

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.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

Best Practices

socialcars.github.io best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

socialcars.github.io SEO score

92

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

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 Socialcars.github.io 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 Socialcars.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

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