Report Summary

  • 60

    Performance

    Renders faster than
    76% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

statistics.yale.edu

Welcome | Department of Statistics and Data Science

Page Load Speed

1.1 sec in total

First Response

114 ms

Resources Loaded

595 ms

Page Rendered

343 ms

statistics.yale.edu screenshot

About Website

Visit statistics.yale.edu now to see the best up-to-date Statistics Yale content for United States and also check out these interesting facts you probably never knew about statistics.yale.edu

Visit statistics.yale.edu

Key Findings

We analyzed Statistics.yale.edu page load time and found that the first response time was 114 ms and then it took 938 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

statistics.yale.edu performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

58/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value3.3 s

90/100

10%

TBT (Total Blocking Time)

Value190 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.115

86/100

15%

TTI (Time to Interactive)

Value6.8 s

54/100

10%

Network Requests Diagram

statistics.yale.edu

114 ms

css_791YXBaKKm1ORM_7huSKEsIV9tSWq6wmRkERhuXpN6w.css

28 ms

css_j1tBM5qxtkO2Dr51b4a5TJY7PBGweD971MhUNrAjaJs.css

27 ms

css_AjzIj0P4fB3MgszvCDW1g0fPvDewx_UtIpY_WA0vvJ0.css

46 ms

css_0nkhJd2_cWDlD3Rye5IayBKOPSxmRJhrTSqABxaNqWU.css

43 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 94% of them (30 requests) were addressed to the original Statistics.yale.edu, 3% (1 request) were made to Ajax.googleapis.com and 3% (1 request) were made to Js-agent.newrelic.com. The less responsive or slowest element that took the longest time to load (152 ms) belongs to the original domain Statistics.yale.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 229.1 kB (26%)

Content Size

878.7 kB

After Optimization

649.6 kB

In fact, the total size of Statistics.yale.edu main page is 878.7 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. Images take 589.4 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 24.5 kB

  • Original 33.4 kB
  • After minification 31.0 kB
  • After compression 8.9 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 24.5 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 10.9 kB

  • Original 589.4 kB
  • After minification 578.6 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. Statistics Yale images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 77.6 kB

  • Original 112.7 kB
  • After minification 87.3 kB
  • After compression 35.0 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 77.6 kB or 69% of the original size.

CSS Optimization

-81%

Potential reduce by 116.1 kB

  • Original 143.2 kB
  • After minification 139.5 kB
  • After compression 27.1 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. Statistics.yale.edu needs all CSS files to be minified and compressed as it can save up to 116.1 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (38%)

Requests Now

29

After Optimization

18

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Statistics Yale. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

statistics.yale.edu accessibility score

100

Accessibility Issues

Best Practices

statistics.yale.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

statistics.yale.edu SEO score

79

Search Engine Optimization Advices

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Statistics.yale.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 Statistics.yale.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 description is not detected on the main page of Statistics Yale. 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: