Tools & Wizards About Us
smithsonianlegacies.si.edu screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    66% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

smithsonianlegacies.si.edu

Discontinued Website | National Museum of American History

Page Load Speed

357 ms in total

First Response

27 ms

Resources Loaded

229 ms

Page Rendered

101 ms

smithsonianlegacies.si.edu screenshot

About Website

Welcome to smithsonianlegacies.si.edu homepage info - get ready to check Smithsonianlegacies Si best content for United States right away, or after learning these important things about smithsonianlegacies.si.edu

The website you attempted to reach has been discontinued.To view items in the Museum's collections, including archives and libraries, please use our Collection Search. Or, use the general site search ...

Visit smithsonianlegacies.si.edu

Key Findings

We analyzed Smithsonianlegacies.si.edu page load time and found that the first response time was 27 ms and then it took 330 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

smithsonianlegacies.si.edu performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value12.3 s

0/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value12.3 s

15/100

10%

Network Requests Diagram

discontinued-website

27 ms

system.base.css

14 ms

system.menus.css

15 ms

system.messages.css

17 ms

system.theme.css

17 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Smithsonianlegacies.si.edu, 7% (5 requests) were made to Fonts.gstatic.com and 4% (3 requests) were made to Si.edu. The less responsive or slowest element that took the longest time to load (97 ms) relates to the external source Americanhistory.si.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 639.4 kB (41%)

Content Size

1.6 MB

After Optimization

917.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Smithsonianlegacies.si.edu main page is 1.6 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. 65% of websites need less resources to load. Images take 771.8 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 28.3 kB

  • Original 36.5 kB
  • After minification 33.5 kB
  • After compression 8.2 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 28.3 kB or 77% of the original size.

Image Optimization

-6%

Potential reduce by 42.7 kB

  • Original 771.8 kB
  • After minification 729.1 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. Smithsonianlegacies Si images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 360.9 kB

  • Original 499.4 kB
  • After minification 438.6 kB
  • After compression 138.5 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 360.9 kB or 72% of the original size.

CSS Optimization

-83%

Potential reduce by 207.5 kB

  • Original 248.7 kB
  • After minification 197.3 kB
  • After compression 41.1 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. Smithsonianlegacies.si.edu needs all CSS files to be minified and compressed as it can save up to 207.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 49 (73%)

Requests Now

67

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Smithsonianlegacies Si. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

discontinued-website

discontinued-website

27 ms

system.base.css

system.base.css

14 ms

system.menus.css

system.menus.css

15 ms

system.messages.css

system.messages.css

17 ms

system.theme.css

system.theme.css

17 ms

book.css

book.css

20 ms

calendar_multiday.css

calendar_multiday.css

18 ms

comment.css

comment.css

21 ms

date.css

date.css

20 ms

datepicker.1.7.css

datepicker.1.7.css

23 ms

date_repeat_field.css

date_repeat_field.css

22 ms

exhibit.css

exhibit.css

23 ms

field.css

field.css

24 ms

google_appliance.css

google_appliance.css

24 ms

node.css

node.css

24 ms

search.css

search.css

25 ms

structuredcontent_field.css

structuredcontent_field.css

26 ms

scf-layout.css

scf-layout.css

26 ms

user.css

user.css

27 ms

views.css

views.css

27 ms

ctools.css

ctools.css

27 ms

ldap_help.css

ldap_help.css

27 ms

lightbox.css

lightbox.css

28 ms

colorbox.css

colorbox.css

28 ms

views_slideshow.css

views_slideshow.css

29 ms

print.css

print.css

29 ms

bootstrap.css

bootstrap.css

33 ms

screen.css

screen.css

30 ms

sidr-dark.css

sidr-dark.css

39 ms

css

css

42 ms

jquery.min.js

jquery.min.js

41 ms

jquery.once.js

jquery.once.js

39 ms

drupal.js

drupal.js

39 ms

admin_devel.js

admin_devel.js

39 ms

lightbox_video.js

lightbox_video.js

40 ms

lightbox.js

lightbox.js

55 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

56 ms

triggerParams.js

triggerParams.js

25 ms

colorbox-load.js

colorbox-load.js

55 ms

views_slideshow.js

views_slideshow.js

53 ms

custom_search.js

custom_search.js

52 ms

googleanalytics.js

googleanalytics.js

52 ms

bootstrap.min.js

bootstrap.min.js

53 ms

nmah.js

nmah.js

52 ms

jquery.sidr.js

jquery.sidr.js

56 ms

seadragon.js

seadragon.js

59 ms

jquery.ids.js

jquery.ids.js

61 ms

webtrends-nmah.js

webtrends-nmah.js

76 ms

analytics.js

analytics.js

34 ms

nmah-print.jpg

nmah-print.jpg

97 ms

mobile-menu-button.png

mobile-menu-button.png

27 ms

mobile-search-button.png

mobile-search-button.png

28 ms

si-logo.png

si-logo.png

28 ms

red-arrow.gif

red-arrow.gif

28 ms

social-icons.png

social-icons.png

29 ms

nmah-location.png

nmah-location.png

30 ms

ssb_conservation.jpg

ssb_conservation.jpg

33 ms

nmah-header-logo.png

nmah-header-logo.png

30 ms

donate-button.png

donate-button.png

30 ms

nmah-si-logo.png

nmah-si-logo.png

31 ms

search-icon.png

search-icon.png

12 ms

wtid.js

wtid.js

35 ms

IczWvq5y_Cwwv_rBjOtT0w.woff

IczWvq5y_Cwwv_rBjOtT0w.woff

33 ms

CcKI4k9un7TZVWzRVT-T8xsxEYwM7FgeyaSgU71cLG0.woff

CcKI4k9un7TZVWzRVT-T8xsxEYwM7FgeyaSgU71cLG0.woff

33 ms

xkvoNo9fC8O2RDydKj12bxsxEYwM7FgeyaSgU71cLG0.woff

xkvoNo9fC8O2RDydKj12bxsxEYwM7FgeyaSgU71cLG0.woff

70 ms

JbtMzqLaYbbbCL9X6EvaIxsxEYwM7FgeyaSgU71cLG0.woff

JbtMzqLaYbbbCL9X6EvaIxsxEYwM7FgeyaSgU71cLG0.woff

34 ms

1ImRNPx4870-D9a1EBUdPBsxEYwM7FgeyaSgU71cLG0.woff

1ImRNPx4870-D9a1EBUdPBsxEYwM7FgeyaSgU71cLG0.woff

33 ms

collect

collect

47 ms

menu-leaf.png

menu-leaf.png

10 ms

menu-expanded.png

menu-expanded.png

10 ms

foresee-surveydef.js

foresee-surveydef.js

9 ms

dcs.gif

dcs.gif

8 ms

foresee-dhtml.css

foresee-dhtml.css

5 ms

Accessibility Review

smithsonianlegacies.si.edu accessibility score

100

Accessibility Issues

Best Practices

smithsonianlegacies.si.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

High

Missing source maps for large first-party JavaScript

SEO Factors

smithsonianlegacies.si.edu SEO score

98

Search Engine Optimization Advices

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

    EN

  • Encoding

    UTF-8

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

smithsonianlegacies.si.edu

Open Graph data is detected on the main page of Smithsonianlegacies Si. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: