Tools & Wizards About Us

Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

cbits.northwestern.edu

Center for Behavioral Intervention Technologies: Center for Behavioral Intervention Technologies: Feinberg School of Medicine

Page Load Speed

900 ms in total

First Response

60 ms

Resources Loaded

583 ms

Page Rendered

257 ms

About Website

Click here to check amazing Cbits Northwestern content for United States. Otherwise, check out these important facts you probably never knew about cbits.northwestern.edu

Learn about the work we do at the Center for Behavioral Intervention Technologies at Northwestern University Feinberg School of Medicine.

Visit cbits.northwestern.edu

Key Findings

We analyzed Cbits.northwestern.edu page load time and found that the first response time was 60 ms and then it took 840 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

cbits.northwestern.edu performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

1/100

25%

SI (Speed Index)

Value3.4 s

90/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value8.2 s

41/100

10%

Network Requests Diagram

cbits.northwestern.edu

60 ms

cbits.northwestern.edu

138 ms

bootstrap.min.css

45 ms

all.css

42 ms

css

45 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 12% of them (4 requests) were addressed to the original Cbits.northwestern.edu, 15% (5 requests) were made to Medtargetsystem.com and 12% (4 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (222 ms) relates to the external source Common.northwestern.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 60.6 kB (8%)

Content Size

761.5 kB

After Optimization

700.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cbits.northwestern.edu main page is 761.5 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. 50% of websites need less resources to load. Images take 565.8 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 29.3 kB

  • Original 37.0 kB
  • After minification 29.9 kB
  • After compression 7.7 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 7.1 kB, which is 19% 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 29.3 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 115 B

  • Original 565.8 kB
  • After minification 565.7 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. Cbits Northwestern images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.4 kB

  • Original 108.8 kB
  • After minification 108.8 kB
  • After compression 107.4 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

-60%

Potential reduce by 29.7 kB

  • Original 49.8 kB
  • After minification 49.6 kB
  • After compression 20.1 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. Cbits.northwestern.edu needs all CSS files to be minified and compressed as it can save up to 29.7 kB or 60% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (54%)

Requests Now

24

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cbits Northwestern. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cbits.northwestern.edu accessibility score

98

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

cbits.northwestern.edu 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

cbits.northwestern.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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cbits.northwestern.edu 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 Cbits.northwestern.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

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