Tools & Wizards About Us
americancenturies.mass.edu screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

americancenturies.mass.edu

American Centuries: History and Art from New England

Page Load Speed

649 ms in total

First Response

58 ms

Resources Loaded

454 ms

Page Rendered

137 ms

americancenturies.mass.edu screenshot

About Website

Welcome to americancenturies.mass.edu homepage info - get ready to check American Centuries Mass best content for United States right away, or after learning these important things about americancenturies.mass.edu

Explore artifacts from our museum and historic manuscripts from our library that reveal the history of New England.

Visit americancenturies.mass.edu

Key Findings

We analyzed Americancenturies.mass.edu page load time and found that the first response time was 58 ms and then it took 591 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

americancenturies.mass.edu performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.3 s

100/100

25%

SI (Speed Index)

Value1.1 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

americancenturies.mass.edu

58 ms

amcen_scripts.js

48 ms

am_cen.css

65 ms

topleft.gif

77 ms

forkids.jpg

125 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that all of those requests were addressed to Americancenturies.mass.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (219 ms) belongs to the original domain Americancenturies.mass.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.6 kB (17%)

Content Size

144.7 kB

After Optimization

120.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Americancenturies.mass.edu main page is 144.7 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. 30% of websites need less resources to load. Images take 113.7 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 12.0 kB

  • Original 15.3 kB
  • After minification 13.7 kB
  • After compression 3.3 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 12.0 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 113.7 kB
  • After minification 113.7 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. American Centuries Mass images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 2.0 kB

  • Original 2.9 kB
  • After minification 2.3 kB
  • After compression 949 B

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 2.0 kB or 68% of the original size.

CSS Optimization

-83%

Potential reduce by 10.6 kB

  • Original 12.8 kB
  • After minification 9.3 kB
  • After compression 2.2 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. Americancenturies.mass.edu needs all CSS files to be minified and compressed as it can save up to 10.6 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

44

After Optimization

44

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of American Centuries Mass. According to our analytics all requests are already optimized.

Network Requests Diagram

americancenturies.mass.edu

americancenturies.mass.edu

58 ms

amcen_scripts.js

amcen_scripts.js

48 ms

am_cen.css

am_cen.css

65 ms

topleft.gif

topleft.gif

77 ms

forkids.jpg

forkids.jpg

125 ms

collection.gif

collection.gif

150 ms

icon_search.gif

icon_search.gif

123 ms

icon_browse.gif

icon_browse.gif

122 ms

icon_1704artifacts.gif

icon_1704artifacts.gif

138 ms

icon_shaysartifacts.gif

icon_shaysartifacts.gif

123 ms

todo.gif

todo.gif

163 ms

icon_lens.gif

icon_lens.gif

158 ms

icon_tools.gif

icon_tools.gif

162 ms

icon_dressup.gif

icon_dressup.gif

159 ms

icon_map.gif

icon_map.gif

167 ms

exhibits.gif

exhibits.gif

174 ms

icon_turns.gif

icon_turns.gif

175 ms

icon_impressions.gif

icon_impressions.gif

177 ms

icon_1704.gif

icon_1704.gif

183 ms

icon_shays.gif

icon_shays.gif

181 ms

icon_a&c.gif

icon_a&c.gif

193 ms

icon_aa.gif

icon_aa.gif

208 ms

icon_civilwar.gif

icon_civilwar.gif

191 ms

classroom.gif

classroom.gif

207 ms

icon_activities.gif

icon_activities.gif

208 ms

icon_landmarks.gif

icon_landmarks.gif

209 ms

icon_1stperson.gif

icon_1stperson.gif

208 ms

icon_aalessons.gif

icon_aalessons.gif

211 ms

icon_everyday.gif

icon_everyday.gif

219 ms

bkgnd_chaulk.gif

bkgnd_chaulk.gif

206 ms

dropdown_about.jpg

dropdown_about.jpg

48 ms

dropdown_research1.jpg

dropdown_research1.jpg

50 ms

dropdown_research2.jpg

dropdown_research2.jpg

46 ms

dropdown_teach1.jpg

dropdown_teach1.jpg

48 ms

dropdown_teach2.jpg

dropdown_teach2.jpg

48 ms

forkids_up.jpg

forkids_up.jpg

46 ms

todo1.jpg

todo1.jpg

63 ms

todo2.jpg

todo2.jpg

70 ms

classroom_anim1.gif

classroom_anim1.gif

77 ms

classroom1.jpg

classroom1.jpg

73 ms

collection_anim.gif

collection_anim.gif

98 ms

collection1.jpg

collection1.jpg

70 ms

collection_anim.gif

collection_anim.gif

115 ms

collection2.gif

collection2.gif

87 ms

forkids_up.jpg

forkids_up.jpg

93 ms

Accessibility Review

americancenturies.mass.edu accessibility score

47

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

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

americancenturies.mass.edu best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

americancenturies.mass.edu SEO score

69

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Americancenturies.mass.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 Americancenturies.mass.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

americancenturies.mass.edu

Open Graph description is not detected on the main page of American Centuries Mass. 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: