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cmi.princeton.edu screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

cmi.princeton.edu

Carbon Mitigation Initiative

Page Load Speed

1.6 sec in total

First Response

140 ms

Resources Loaded

1.2 sec

Page Rendered

268 ms

cmi.princeton.edu screenshot

About Website

Click here to check amazing Cmi Princeton content for United States. Otherwise, check out these important facts you probably never knew about cmi.princeton.edu

The Carbon Mitigation Initiative (CMI) is a partnership among Princeton University and BP with the goal of finding solutions to the carbon and climate problem.

Visit cmi.princeton.edu

Key Findings

We analyzed Cmi.princeton.edu page load time and found that the first response time was 140 ms and then it took 1.4 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

cmi.princeton.edu performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value12.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value21.9 s

0/100

25%

SI (Speed Index)

Value23.4 s

0/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value19.7 s

2/100

10%

Network Requests Diagram

cmi.princeton.edu

140 ms

player.js

54 ms

styles.css

133 ms

brand

20 ms

brand

70 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 74% of them (28 requests) were addressed to the original Cmi.princeton.edu, 11% (4 requests) were made to Google-analytics.com and 5% (2 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (650 ms) belongs to the original domain Cmi.princeton.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 740.0 kB (52%)

Content Size

1.4 MB

After Optimization

684.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cmi.princeton.edu main page is 1.4 MB. 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. Javascripts take 966.2 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 11.6 kB

  • Original 16.7 kB
  • After minification 14.6 kB
  • After compression 5.1 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. This page needs HTML code to be minified as it can gain 2.1 kB, which is 13% 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 11.6 kB or 70% of the original size.

Image Optimization

-1%

Potential reduce by 5.6 kB

  • Original 425.2 kB
  • After minification 419.6 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. Cmi Princeton images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 710.3 kB

  • Original 966.2 kB
  • After minification 951.2 kB
  • After compression 256.0 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 710.3 kB or 74% of the original size.

CSS Optimization

-78%

Potential reduce by 12.6 kB

  • Original 16.1 kB
  • After minification 12.7 kB
  • After compression 3.6 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. Cmi.princeton.edu needs all CSS files to be minified and compressed as it can save up to 12.6 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (49%)

Requests Now

35

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cmi Princeton. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cmi.princeton.edu

cmi.princeton.edu

140 ms

player.js

player.js

54 ms

styles.css

styles.css

133 ms

brand

brand

20 ms

brand

brand

70 ms

princeton_logo.gif

princeton_logo.gif

37 ms

search_button.jpg

search_button.jpg

47 ms

nivo-slider.css

nivo-slider.css

88 ms

default.css

default.css

130 ms

jquery-1.9.0.min.js

jquery-1.9.0.min.js

124 ms

jquery.nivo.slider.js

jquery.nivo.slider.js

243 ms

pei_bg.png

pei_bg.png

84 ms

cigar_bar.gif

cigar_bar.gif

128 ms

nav_bg.gif

nav_bg.gif

133 ms

cmi_logo.jpg

cmi_logo.jpg

172 ms

oldestice_feature.jpg

oldestice_feature.jpg

594 ms

battle_feature.jpg

battle_feature.jpg

278 ms

cmi_science_group_feature.jpg

cmi_science_group_feature.jpg

252 ms

cmi_technology_group_feature.jpg

cmi_technology_group_feature.jpg

257 ms

cmi_integration_group_feature.jpg

cmi_integration_group_feature.jpg

650 ms

black_bar.png

black_bar.png

291 ms

wedges.jpg

wedges.jpg

460 ms

carbon_footprint.jpg

carbon_footprint.jpg

364 ms

2014_Annual_Report_cover.jpg

2014_Annual_Report_cover.jpg

344 ms

bp_logo.jpg

bp_logo.jpg

415 ms

pei_logo.jpg

pei_logo.jpg

364 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

36 ms

loading.gif

loading.gif

231 ms

tricolor.jpg

tricolor.jpg

334 ms

analytics.js

analytics.js

20 ms

ga.js

ga.js

36 ms

collect

collect

31 ms

__utm.gif

__utm.gif

26 ms

collect

collect

53 ms

print.css

print.css

73 ms

player-min.js

player-min.js

36 ms

arrows.png

arrows.png

139 ms

fpc.pl

fpc.pl

41 ms

Accessibility Review

cmi.princeton.edu accessibility score

100

Accessibility Issues

Best Practices

cmi.princeton.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

High

Missing source maps for large first-party JavaScript

SEO Factors

cmi.princeton.edu SEO score

77

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Cmi.princeton.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 Cmi.princeton.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

cmi.princeton.edu

Open Graph description is not detected on the main page of Cmi Princeton. 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: