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titan.princeton.edu screenshot

Report Summary

  • 97

    Performance

    Renders faster than
    94% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

titan.princeton.edu

Princeton University - Computer-Aided Systems Laboratory - C. A. Floudas

Page Load Speed

280 ms in total

First Response

25 ms

Resources Loaded

139 ms

Page Rendered

116 ms

titan.princeton.edu screenshot

About Website

Welcome to titan.princeton.edu homepage info - get ready to check Titan Princeton best content for United States right away, or after learning these important things about titan.princeton.edu

You are invited to explore the Computer-Aided Systems Laboratory (CASL) in the Department of Chemical and Biological Engineering at Princeton University. This homepage consists of a description of the...

Visit titan.princeton.edu

Key Findings

We analyzed Titan.princeton.edu page load time and found that the first response time was 25 ms and then it took 255 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

titan.princeton.edu performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value1.5 s

100/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.9 s

100/100

10%

Network Requests Diagram

titan.princeton.edu

25 ms

jquery-1.4.min.js

42 ms

loopedslider.min.js

16 ms

style.new.css

16 ms

ga.js

22 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 82% of them (9 requests) were addressed to the original Titan.princeton.edu, 18% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (42 ms) belongs to the original domain Titan.princeton.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 59.1 kB (22%)

Content Size

265.3 kB

After Optimization

206.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Titan.princeton.edu main page is 265.3 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. 15% of websites need less resources to load. Images take 160.5 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 3.2 kB

  • Original 5.3 kB
  • After minification 5.2 kB
  • After compression 2.0 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 3.2 kB or 61% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 160.5 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.

JavaScript Optimization

-55%

Potential reduce by 51.0 kB

  • Original 93.1 kB
  • After minification 92.8 kB
  • After compression 42.1 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 51.0 kB or 55% of the original size.

CSS Optimization

-76%

Potential reduce by 4.8 kB

  • Original 6.4 kB
  • After minification 5.0 kB
  • After compression 1.5 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. Titan.princeton.edu needs all CSS files to be minified and compressed as it can save up to 4.8 kB or 76% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

10

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Titan Princeton. According to our analytics all requests are already optimized.

Network Requests Diagram

titan.princeton.edu

titan.princeton.edu

25 ms

jquery-1.4.min.js

jquery-1.4.min.js

42 ms

loopedslider.min.js

loopedslider.min.js

16 ms

style.new.css

style.new.css

16 ms

ga.js

ga.js

22 ms

bluegrad.png

bluegrad.png

17 ms

peaks2.png

peaks2.png

39 ms

title2.png

title2.png

21 ms

nav_background.png

nav_background.png

18 ms

CAF-small.png

CAF-small.png

27 ms

__utm.gif

__utm.gif

13 ms

Accessibility Review

titan.princeton.edu accessibility score

54

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

The document uses <meta http-equiv="refresh">

Best Practices

titan.princeton.edu best practices score

67

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

titan.princeton.edu SEO score

67

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

Image elements do not have [alt] attributes

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 Titan.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 Titan.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

titan.princeton.edu

Open Graph description is not detected on the main page of Titan 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: