Report Summary

  • 65

    Performance

    Renders faster than
    79% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

nobles.edu

Noble and Greenough School - A 5-Day Boarding School

Page Load Speed

2.8 sec in total

First Response

435 ms

Resources Loaded

1.9 sec

Page Rendered

460 ms

nobles.edu screenshot

About Website

Visit nobles.edu now to see the best up-to-date Noble S content for United States and also check out these interesting facts you probably never knew about nobles.edu

A nonsectarian, 5-day boarding school for grades 7–12 located on 187 acres along the Charles River in Dedham, Massachusetts.

Visit nobles.edu

Key Findings

We analyzed Nobles.edu page load time and found that the first response time was 435 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

nobles.edu performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value14.5 s

0/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value3.8 s

90/100

10%

Network Requests Diagram

www.nobles.edu

435 ms

cfmessage.js

235 ms

cfajax.js

233 ms

cfform.js

187 ms

masks.js

159 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 84% of them (62 requests) were addressed to the original Nobles.edu, 5% (4 requests) were made to Scontent.xx.fbcdn.net and 3% (2 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (823 ms) belongs to the original domain Nobles.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (37%)

Content Size

3.1 MB

After Optimization

2.0 MB

In fact, the total size of Nobles.edu main page is 3.1 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. 40% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 63.1 kB

  • Original 74.1 kB
  • After minification 48.3 kB
  • After compression 11.0 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. This page needs HTML code to be minified as it can gain 25.8 kB, which is 35% 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 63.1 kB or 85% of the original size.

Image Optimization

-4%

Potential reduce by 62.6 kB

  • Original 1.7 MB
  • After minification 1.6 MB

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. Noble S images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 842.8 kB

  • Original 1.2 MB
  • After minification 1.1 MB
  • After compression 330.3 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 842.8 kB or 72% of the original size.

CSS Optimization

-87%

Potential reduce by 170.6 kB

  • Original 197.0 kB
  • After minification 150.6 kB
  • After compression 26.4 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. Nobles.edu needs all CSS files to be minified and compressed as it can save up to 170.6 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (48%)

Requests Now

73

After Optimization

38

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Noble S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

nobles.edu accessibility score

70

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

nobles.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

nobles.edu SEO score

84

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

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

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 Nobles.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 Nobles.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

Open Graph description is not detected on the main page of Noble S. 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: