Tools & Wizards About Us
naturemuseum.org screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

naturemuseum.org

Nature Museum | Inspiring Nature Champions

Page Load Speed

4.1 sec in total

First Response

1.7 sec

Resources Loaded

2.1 sec

Page Rendered

222 ms

naturemuseum.org screenshot

About Website

Click here to check amazing Nature Museum content for United States. Otherwise, check out these important facts you probably never knew about naturemuseum.org

The Peggy Notebaert Nature Museum of the Chicago Academy of Sciences connects people to nature and science through immersive exhibits, fun family events,…

Visit naturemuseum.org

Key Findings

We analyzed Naturemuseum.org page load time and found that the first response time was 1.7 sec and then it took 2.4 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

naturemuseum.org performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

70/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.388

26/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

naturemuseum.org

1701 ms

font-awesome.min.css

12 ms

Site.css

93 ms

orchard-search-search.css

53 ms

flexslider.min.css

60 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 81% of them (26 requests) were addressed to the original Naturemuseum.org, 6% (2 requests) were made to Cdnjs.cloudflare.com and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Naturemuseum.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 321.8 kB (18%)

Content Size

1.8 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Naturemuseum.org main page is 1.8 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. 45% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 35.3 kB

  • Original 43.5 kB
  • After minification 37.2 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. This page needs HTML code to be minified as it can gain 6.3 kB, which is 15% 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 35.3 kB or 81% of the original size.

Image Optimization

-7%

Potential reduce by 99.7 kB

  • Original 1.5 MB
  • After minification 1.4 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. Nature Museum images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 88.2 kB

  • Original 154.2 kB
  • After minification 151.0 kB
  • After compression 66.1 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 88.2 kB or 57% of the original size.

CSS Optimization

-81%

Potential reduce by 98.6 kB

  • Original 121.0 kB
  • After minification 119.9 kB
  • After compression 22.4 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. Naturemuseum.org needs all CSS files to be minified and compressed as it can save up to 98.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (29%)

Requests Now

28

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nature Museum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

naturemuseum.org

naturemuseum.org

1701 ms

font-awesome.min.css

font-awesome.min.css

12 ms

Site.css

Site.css

93 ms

orchard-search-search.css

orchard-search-search.css

53 ms

flexslider.min.css

flexslider.min.css

60 ms

modernizr-2.8.3.min.js

modernizr-2.8.3.min.js

91 ms

jquery-1.11.1.min.js

jquery-1.11.1.min.js

163 ms

site.js

site.js

119 ms

jquery.flexslider.min.js

jquery.flexslider.min.js

118 ms

analytics.js

analytics.js

35 ms

gtm.js

gtm.js

128 ms

PNM-logo-print.gif

PNM-logo-print.gif

117 ms

logo-peggy-notebaert-museum.png

logo-peggy-notebaert-museum.png

131 ms

blank.png

blank.png

114 ms

spanish%20through%20nature%20160x130.jpg

spanish%20through%20nature%20160x130.jpg

133 ms

Green%20City%20160x130.png

Green%20City%20160x130.png

135 ms

homepage-260x130.jpg

homepage-260x130.jpg

134 ms

CAS%20logo%2094x95.png

CAS%20logo%2094x95.png

130 ms

aam%20logo%20resized.png

aam%20logo%20resized.png

129 ms

collect

collect

86 ms

collect

collect

107 ms

Untitled%20design%20(2)-min.jpg

Untitled%20design%20(2)-min.jpg

158 ms

caspnnm-taxi-class-2016-min.jpg

caspnnm-taxi-class-2016-min.jpg

147 ms

SpanishThroughNature_webbanner-min.jpg

SpanishThroughNature_webbanner-min.jpg

103 ms

pnnm-fw-website-slide3.jpg

pnnm-fw-website-slide3.jpg

163 ms

Untitled%20design%20(1)-min-1.jpg

Untitled%20design%20(1)-min-1.jpg

167 ms

PNNMhomepage-1600x522-1.jpg

PNNMhomepage-1600x522-1.jpg

130 ms

PrairieClassFP_fix-opt.jpg

PrairieClassFP_fix-opt.jpg

214 ms

home-hero-arrows.png

home-hero-arrows.png

159 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

28 ms

PTN77F-webfont.woff

PTN77F-webfont.woff

169 ms

PTN57F-webfont.woff

PTN57F-webfont.woff

186 ms

Accessibility Review

naturemuseum.org accessibility score

79

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

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

Best Practices

naturemuseum.org 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

naturemuseum.org SEO score

93

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

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 Naturemuseum.org 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 Naturemuseum.org 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

naturemuseum.org

Open Graph description is not detected on the main page of Nature Museum. 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: