Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

research.yale.edu

Homepage | Yale Research

Page Load Speed

2.3 sec in total

First Response

1 sec

Resources Loaded

1.1 sec

Page Rendered

120 ms

research.yale.edu screenshot

About Website

Click here to check amazing Research Yale content for United States. Otherwise, check out these important facts you probably never knew about research.yale.edu

Understanding the World and Shaping Its Future

Visit research.yale.edu

Key Findings

We analyzed Research.yale.edu page load time and found that the first response time was 1 sec and then it took 1.2 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

research.yale.edu performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

29/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

research.yale.edu

1044 ms

master.css

27 ms

banner_logo.gif

30 ms

banner_tile.gif

25 ms

banner_circuit.gif

37 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that all of those requests were addressed to Research.yale.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Research.yale.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.9 kB (68%)

Content Size

5.7 kB

After Optimization

1.8 kB

In fact, the total size of Research.yale.edu main page is 5.7 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. CSS take 3.3 kB which makes up the majority of the site volume.

HTML Optimization

-54%

Potential reduce by 1.3 kB

  • Original 2.4 kB
  • After minification 2.2 kB
  • After compression 1.1 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 1.3 kB or 54% of the original size.

CSS Optimization

-79%

Potential reduce by 2.6 kB

  • Original 3.3 kB
  • After minification 2.6 kB
  • After compression 713 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. Research.yale.edu needs all CSS files to be minified and compressed as it can save up to 2.6 kB or 79% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Research Yale. According to our analytics all requests are already optimized.

Accessibility Review

research.yale.edu accessibility score

98

Accessibility Issues

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

research.yale.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

SEO Factors

research.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 Research.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 Research.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 Research 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: