Tools & Wizards About Us
csinparallel.org screenshot

Report Summary

  • 84

    Performance

    Renders faster than
    88% 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

  • 80

    SEO

    Google-friendlier than
    42% of websites

csinparallel.org

Parallel Computing in the Computer Science Curriculum

Page Load Speed

560 ms in total

First Response

33 ms

Resources Loaded

413 ms

Page Rendered

114 ms

csinparallel.org screenshot

About Website

Click here to check amazing Csin Parallel content. Otherwise, check out these important facts you probably never knew about csinparallel.org

CS in Parallel (supported by a grant from NSF-CCLI) provides a resource for CS educators to find, share, and discuss modular teaching materials and computational platform supports.

Visit csinparallel.org

Key Findings

We analyzed Csinparallel.org page load time and found that the first response time was 33 ms and then it took 527 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

csinparallel.org performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

65/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.056

98/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

csinparallel.org

33 ms

csinparallel.org

64 ms

index.html

53 ms

cs_parallel_chrome_2016.v1725918247.css

71 ms

js.cookie.v1598991093.js

3 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 45% of them (9 requests) were addressed to the original Csinparallel.org, 30% (6 requests) were made to Cdn.serc.carleton.edu and 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (100 ms) relates to the external source Cdn.serc.carleton.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 37.4 kB (23%)

Content Size

164.9 kB

After Optimization

127.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Csinparallel.org main page is 164.9 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. 15% of websites need less resources to load. Javascripts take 57.0 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 30.8 kB

  • Original 47.0 kB
  • After minification 46.2 kB
  • After compression 16.2 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 30.8 kB or 66% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 29.9 kB
  • After minification 29.9 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. Csin Parallel images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 847 B

  • Original 57.0 kB
  • After minification 57.0 kB
  • After compression 56.2 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.

CSS Optimization

-18%

Potential reduce by 5.7 kB

  • Original 30.9 kB
  • After minification 30.9 kB
  • After compression 25.2 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. Csinparallel.org needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (40%)

Requests Now

15

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Csin Parallel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

csinparallel.org

csinparallel.org

33 ms

csinparallel.org

csinparallel.org

64 ms

index.html

index.html

53 ms

cs_parallel_chrome_2016.v1725918247.css

cs_parallel_chrome_2016.v1725918247.css

71 ms

js.cookie.v1598991093.js

js.cookie.v1598991093.js

3 ms

modernizr.custom.10-18-11.v1598991093.js

modernizr.custom.10-18-11.v1598991093.js

4 ms

base_vanilla.v1727211891.js

base_vanilla.v1727211891.js

5 ms

web_socket_functions.v1706628921.js

web_socket_functions.v1706628921.js

6 ms

default.v1598991093.js

default.v1598991093.js

6 ms

analytics.js

analytics.js

21 ms

banner.jpg

banner.jpg

17 ms

visual_module_search_456.webp

visual_module_search_456.webp

100 ms

nsf_logo_transparent.webp

nsf_logo_transparent.webp

69 ms

serc_standard_footer_logo_2020.v3.webp

serc_standard_footer_logo_2020.v3.webp

69 ms

visual_module_search_100.webp

visual_module_search_100.webp

70 ms

collect

collect

15 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

23 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

29 ms

js

js

74 ms

print.v1706628921.css

print.v1706628921.css

3 ms

Accessibility Review

csinparallel.org accessibility score

100

Accessibility Issues

Best Practices

csinparallel.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

csinparallel.org SEO score

80

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Csinparallel.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 Csinparallel.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

csinparallel.org

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