Tools & Wizards About Us
columbia-ocd.org screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

columbia-ocd.org

Center for OCD & Related Disorders | Columbia University Department of Psychiatry

Page Load Speed

1.2 sec in total

First Response

106 ms

Resources Loaded

903 ms

Page Rendered

209 ms

columbia-ocd.org screenshot

About Website

Welcome to columbia-ocd.org homepage info - get ready to check Columbia OCD best content right away, or after learning these important things about columbia-ocd.org

The Center for OCD and Related Disorders is dedicated to improving the lives of people with obsessive-compulsive disorder (OCD) and related disorders.

Visit columbia-ocd.org

Key Findings

We analyzed Columbia-ocd.org page load time and found that the first response time was 106 ms and then it took 1.1 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

columbia-ocd.org performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value450 ms

62/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value7.2 s

51/100

10%

Network Requests Diagram

center-ocd-and-related-disorders

106 ms

css__vhRiumiJCO-5FJMLwiI5OPfxQVM-amXVTXEjXqn-C5M__8uVr5k05ZoalyGNUz2cu5sJgZXMX9rFW70egTcomrVY__08DdYF3tcsuwRnrJw9nsRQr6BfVr4OnTyZuLM18GSts.css

17 ms

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20 ms

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16 ms

style.css

43 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Columbia-ocd.org, 16% (5 requests) were made to Use.typekit.net and 10% (3 requests) were made to Columbiamed.containers.piwik.pro. The less responsive or slowest element that took the longest time to load (248 ms) relates to the external source Columbiamed.containers.piwik.pro.

Page Optimization Overview & Recommendations

Page size can be reduced by 202.0 kB (25%)

Content Size

796.8 kB

After Optimization

594.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Columbia-ocd.org main page is 796.8 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. 55% of websites need less resources to load. Images take 456.3 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 147.6 kB

  • Original 185.7 kB
  • After minification 183.4 kB
  • After compression 38.1 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 147.6 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 21.5 kB

  • Original 456.3 kB
  • After minification 434.8 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. Columbia OCD images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 30.7 kB

  • Original 142.7 kB
  • After minification 142.7 kB
  • After compression 112.0 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 30.7 kB or 22% of the original size.

CSS Optimization

-18%

Potential reduce by 2.2 kB

  • Original 12.0 kB
  • After minification 12.0 kB
  • After compression 9.8 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. Columbia-ocd.org needs all CSS files to be minified and compressed as it can save up to 2.2 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (58%)

Requests Now

24

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Columbia OCD. 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 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

center-ocd-and-related-disorders

center-ocd-and-related-disorders

106 ms

css__vhRiumiJCO-5FJMLwiI5OPfxQVM-amXVTXEjXqn-C5M__8uVr5k05ZoalyGNUz2cu5sJgZXMX9rFW70egTcomrVY__08DdYF3tcsuwRnrJw9nsRQr6BfVr4OnTyZuLM18GSts.css

css__vhRiumiJCO-5FJMLwiI5OPfxQVM-amXVTXEjXqn-C5M__8uVr5k05ZoalyGNUz2cu5sJgZXMX9rFW70egTcomrVY__08DdYF3tcsuwRnrJw9nsRQr6BfVr4OnTyZuLM18GSts.css

17 ms

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20 ms

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16 ms

style.css

style.css

43 ms

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18 ms

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21 ms

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36 ms

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28 ms

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27 ms

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34 ms

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39 ms

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178 ms

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178 ms

p.css

p.css

163 ms

b8d9e86e-6ed1-44a2-9b5c-7cc1f1e7fb18.js

b8d9e86e-6ed1-44a2-9b5c-7cc1f1e7fb18.js

248 ms

cuimc.svg

cuimc.svg

239 ms

logo-psychiatry-desktop.svg

logo-psychiatry-desktop.svg

92 ms

logo-columbia--white.svg

logo-columbia--white.svg

90 ms

logo-nyp-white.svg

logo-nyp-white.svg

88 ms

logo-nyspi-white.png

logo-nyspi-white.png

91 ms

logo-columbia-doctors-white.svg

logo-columbia-doctors-white.svg

91 ms

ocd_team_picture.jpeg

ocd_team_picture.jpeg

226 ms

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cb-icons.woff

cb-icons.woff

34 ms

privacy-widgets.json

privacy-widgets.json

132 ms

ppms.js

ppms.js

183 ms

Accessibility Review

columbia-ocd.org accessibility score

100

Accessibility Issues

Best Practices

columbia-ocd.org 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

High

Page has valid source maps

SEO Factors

columbia-ocd.org 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 Columbia-ocd.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 Columbia-ocd.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

columbia-ocd.org

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