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cosmo.nyu.edu 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
    81% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

cosmo.nyu.edu

The Center for Cosmology and Particle Physics

Page Load Speed

319 ms in total

First Response

36 ms

Resources Loaded

146 ms

Page Rendered

137 ms

cosmo.nyu.edu screenshot

About Website

Click here to check amazing Cosmo Nyu content for United States. Otherwise, check out these important facts you probably never knew about cosmo.nyu.edu

Visit cosmo.nyu.edu

Key Findings

We analyzed Cosmo.nyu.edu page load time and found that the first response time was 36 ms and then it took 283 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

cosmo.nyu.edu performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value2.7 s

96/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

cosmo.nyu.edu

36 ms

ccpp-vars.js

17 ms

ccpp-functions.js

17 ms

ccpp.css

17 ms

events.html

26 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that all of those requests were addressed to Cosmo.nyu.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (77 ms) belongs to the original domain Cosmo.nyu.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 19.4 kB (20%)

Content Size

98.3 kB

After Optimization

78.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cosmo.nyu.edu main page is 98.3 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. Only 10% of websites need less resources to load. Images take 88.0 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 5.3 kB

  • Original 6.8 kB
  • After minification 6.7 kB
  • After compression 1.6 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 5.3 kB or 77% of the original size.

Image Optimization

-13%

Potential reduce by 11.6 kB

  • Original 88.0 kB
  • After minification 76.4 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, Cosmo Nyu needs image optimization as it can save up to 11.6 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-80%

Potential reduce by 1.6 kB

  • Original 2.0 kB
  • After minification 947 B
  • After compression 407 B

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 1.6 kB or 80% of the original size.

CSS Optimization

-65%

Potential reduce by 986 B

  • Original 1.5 kB
  • After minification 1.2 kB
  • After compression 539 B

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. Cosmo.nyu.edu needs all CSS files to be minified and compressed as it can save up to 986 B or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (50%)

Requests Now

26

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cosmo Nyu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

cosmo.nyu.edu

cosmo.nyu.edu

36 ms

ccpp-vars.js

ccpp-vars.js

17 ms

ccpp-functions.js

ccpp-functions.js

17 ms

ccpp.css

ccpp.css

17 ms

events.html

events.html

26 ms

visitors_in.html

visitors_in.html

21 ms

star-hi.gif

star-hi.gif

20 ms

s.gif

s.gif

21 ms

top-bg.jpg

top-bg.jpg

27 ms

logo.gif

logo.gif

22 ms

ccpp_home-off.gif

ccpp_home-off.gif

33 ms

people-off.gif

people-off.gif

34 ms

visitors-off.gif

visitors-off.gif

37 ms

projects-off.gif

projects-off.gif

36 ms

research-off.gif

research-off.gif

36 ms

news_and_events-off.gif

news_and_events-off.gif

41 ms

grad_studies-off.gif

grad_studies-off.gif

49 ms

center_life-off.gif

center_life-off.gif

49 ms

opportunities-off.gif

opportunities-off.gif

49 ms

internal-off.gif

internal-off.gif

50 ms

contact_us-off.gif

contact_us-off.gif

50 ms

nyu_physics-off.gif

nyu_physics-off.gif

56 ms

this_weeks_events.jpg

this_weeks_events.jpg

66 ms

front-bl-1.jpg

front-bl-1.jpg

77 ms

front-tr-1.jpg

front-tr-1.jpg

65 ms

this_weeks_visitors.jpg

this_weeks_visitors.jpg

66 ms

iframes.css

iframes.css

51 ms

Accessibility Review

cosmo.nyu.edu accessibility score

100

Accessibility Issues

Best Practices

cosmo.nyu.edu 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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

cosmo.nyu.edu SEO score

88

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cosmo.nyu.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 Cosmo.nyu.edu main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

cosmo.nyu.edu

Open Graph description is not detected on the main page of Cosmo Nyu. 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: