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practiceit.cs.washington.edu screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

practiceit.cs.washington.edu

Practice-It, a web-based practice problem tool for computer science students

Page Load Speed

1.5 sec in total

First Response

223 ms

Resources Loaded

1.2 sec

Page Rendered

105 ms

practiceit.cs.washington.edu screenshot

About Website

Welcome to practiceit.cs.washington.edu homepage info - get ready to check Practice It Cs Washington best content for United States right away, or after learning these important things about practiceit.cs.washington.edu

Practice-It is an online practice problem tool to help students in college and high school intro programming courses learn and practice basic CS1 and CS2 programming concepts.

Visit practiceit.cs.washington.edu

Key Findings

We analyzed Practiceit.cs.washington.edu page load time and found that the first response time was 223 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

practiceit.cs.washington.edu performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

26/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

practiceit.cs.washington.edu

223 ms

practiceit.cs.washington.edu

289 ms

style.css

127 ms

mobile.css

185 ms

pit.css

190 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Practiceit.cs.washington.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (441 ms) belongs to the original domain Practiceit.cs.washington.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 386.3 kB (71%)

Content Size

545.4 kB

After Optimization

159.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Practiceit.cs.washington.edu main page is 545.4 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. 15% of websites need less resources to load. Javascripts take 382.7 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 5.7 kB

  • Original 8.7 kB
  • After minification 7.9 kB
  • After compression 2.9 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 5.7 kB or 66% of the original size.

Image Optimization

-16%

Potential reduce by 3.9 kB

  • Original 25.2 kB
  • After minification 21.3 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. Obviously, Practice It Cs Washington needs image optimization as it can save up to 3.9 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 273.1 kB

  • Original 382.7 kB
  • After minification 373.0 kB
  • After compression 109.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 273.1 kB or 71% of the original size.

CSS Optimization

-80%

Potential reduce by 103.5 kB

  • Original 128.9 kB
  • After minification 103.6 kB
  • After compression 25.3 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. Practiceit.cs.washington.edu needs all CSS files to be minified and compressed as it can save up to 103.5 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (73%)

Requests Now

15

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Practice It Cs Washington. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

practiceit.cs.washington.edu

practiceit.cs.washington.edu

223 ms

practiceit.cs.washington.edu

practiceit.cs.washington.edu

289 ms

style.css

style.css

127 ms

mobile.css

mobile.css

185 ms

pit.css

pit.css

190 ms

pit-mobile.css

pit-mobile.css

194 ms

font-awesome.css

font-awesome.css

262 ms

font-mfizz.css

font-mfizz.css

196 ms

jquery-ui.min.css

jquery-ui.min.css

259 ms

jquery-3.6.0.min.js

jquery-3.6.0.min.js

365 ms

jquery-ui.min.js

jquery-ui.min.js

441 ms

jquery.form.min.js

jquery.form.min.js

318 ms

jquery.ion.sound.min.js

jquery.ion.sound.min.js

266 ms

advertisement.js

advertisement.js

323 ms

common.js

common.js

323 ms

app-cartoony-logo-h60.png

app-cartoony-logo-h60.png

65 ms

adblock-disable.png

adblock-disable.png

62 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

193 ms

Accessibility Review

practiceit.cs.washington.edu accessibility score

49

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

practiceit.cs.washington.edu best practices score

83

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

SEO Factors

practiceit.cs.washington.edu SEO score

100

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

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 Practiceit.cs.washington.edu 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 Practiceit.cs.washington.edu 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

practiceit.cs.washington.edu

Open Graph description is not detected on the main page of Practice It Cs Washington. 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: