Report Summary

  • 41

    Performance

    Renders faster than
    62% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 99

    SEO

    Google-friendlier than
    94% of websites

amnh.org

American Museum of Natural History | New York City

Page Load Speed

736 ms in total

First Response

17 ms

Resources Loaded

552 ms

Page Rendered

167 ms

amnh.org screenshot

About Website

Welcome to amnh.org homepage info - get ready to check Amnh best content for United States right away, or after learning these important things about amnh.org

Explore the natural world, and the known universe. All admission to the Museum is by timed entry and must be reserved online. Open Wednesday-Sunday, 10 am-5:30 pm.

Visit amnh.org

Key Findings

We analyzed Amnh.org page load time and found that the first response time was 17 ms and then it took 719 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

amnh.org performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

48/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.5 s

23/100

10%

Network Requests Diagram

amnh.org

17 ms

www.amnh.org

29 ms

jquery.smartbanner.css

12 ms

cba6be1d1c03cdc0990e4246102a7a21_1454095052_all.css

16 ms

28df4c629ba26783f0ea9001ec66a733_1440616998_all.css

32 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 57% of them (38 requests) were addressed to the original Amnh.org, 7% (5 requests) were made to Translate.googleapis.com and 7% (5 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (185 ms) relates to the external source Translate.googleapis.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (50%)

Content Size

2.7 MB

After Optimization

1.3 MB

In fact, the total size of Amnh.org main page is 2.7 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. 70% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 82.6 kB

  • Original 101.8 kB
  • After minification 76.9 kB
  • After compression 19.1 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 24.8 kB, which is 24% 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 82.6 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 19.5 kB

  • Original 911.5 kB
  • After minification 892.0 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. Amnh images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 752.7 kB

  • Original 1.1 MB
  • After minification 1.0 MB
  • After compression 327.6 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 752.7 kB or 70% of the original size.

CSS Optimization

-82%

Potential reduce by 463.1 kB

  • Original 565.6 kB
  • After minification 538.4 kB
  • After compression 102.5 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. Amnh.org needs all CSS files to be minified and compressed as it can save up to 463.1 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (45%)

Requests Now

64

After Optimization

35

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Amnh. 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 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

amnh.org accessibility score

85

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

amnh.org best practices score

75

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

Browser errors were logged to the console

SEO Factors

amnh.org SEO score

99

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 Amnh.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 Amnh.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

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