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cogneurosci.org screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% 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

cogneurosci.org

Cognitive Neuroscience Research | Columbia Neurology

Page Load Speed

1.6 sec in total

First Response

157 ms

Resources Loaded

1.3 sec

Page Rendered

201 ms

cogneurosci.org screenshot

About Website

Welcome to cogneurosci.org homepage info - get ready to check Cogneurosci best content right away, or after learning these important things about cogneurosci.org

The Division of Cognitive Neuroscience at Columbia University focuses on cognitive experimental and neuroimaging approaches to cognitive functioning across the life span.

Visit cogneurosci.org

Key Findings

We analyzed Cogneurosci.org page load time and found that the first response time was 157 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

cogneurosci.org performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value7.5 s

26/100

10%

TBT (Total Blocking Time)

Value430 ms

64/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

cogneurosci.org

157 ms

cognitive-neuroscience-research

20 ms

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11 ms

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13 ms

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17 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Cogneurosci.org, 68% (21 requests) were made to Neurology.columbia.edu and 16% (5 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (325 ms) relates to the external source Use.typekit.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 228.9 kB (47%)

Content Size

487.1 kB

After Optimization

258.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cogneurosci.org main page is 487.1 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. 45% of websites need less resources to load. HTML takes 254.4 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 205.6 kB

  • Original 254.4 kB
  • After minification 251.1 kB
  • After compression 48.9 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 205.6 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 1.3 kB

  • Original 79.5 kB
  • After minification 78.2 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. Cogneurosci images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 19.9 kB

  • Original 141.2 kB
  • After minification 141.2 kB
  • After compression 121.3 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 19.9 kB or 14% 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. Cogneurosci.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 (61%)

Requests Now

23

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cogneurosci. 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

cogneurosci.org

cogneurosci.org

157 ms

cognitive-neuroscience-research

cognitive-neuroscience-research

20 ms

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11 ms

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13 ms

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17 ms

style.css

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34 ms

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167 ms

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34 ms

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168 ms

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167 ms

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167 ms

p.css

p.css

18 ms

78880c99-8081-4890-b281-135986b09443.js

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209 ms

cuimc.svg

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202 ms

logo-neurology-desktop.svg

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184 ms

logo-columbia--white.svg

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187 ms

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189 ms

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186 ms

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privacy-widgets.json

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ppms.js

ppms.js

296 ms

Accessibility Review

cogneurosci.org accessibility score

100

Accessibility Issues

Best Practices

cogneurosci.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

cogneurosci.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 Cogneurosci.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 Cogneurosci.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

cogneurosci.org

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