Tools & Wizards About Us

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

rollerskatingmuseum.org

Skating Museum | National Museum of Rollerskating | United States

Page Load Speed

1 sec in total

First Response

112 ms

Resources Loaded

819 ms

Page Rendered

95 ms

About Website

Visit rollerskatingmuseum.org now to see the best up-to-date Rollerskating Museum content and also check out these interesting facts you probably never knew about rollerskatingmuseum.org

The National Museum of Roller Skating is the only museum of roller skating in the United States. Contains the oldest pair of roller skates ever developed along with all disciplines that involve roller...

Visit rollerskatingmuseum.org

Key Findings

We analyzed Rollerskatingmuseum.org page load time and found that the first response time was 112 ms and then it took 914 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

rollerskatingmuseum.org performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value2,170 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.031

100/100

15%

TTI (Time to Interactive)

Value17.2 s

4/100

10%

Network Requests Diagram

www.rollerskatingmuseum.org

112 ms

originTrials.41d7301a.bundle.min.js

37 ms

minified.js

45 ms

focus-within-polyfill.js

43 ms

polyfill.min.js

178 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Rollerskatingmuseum.org, 46% (19 requests) were made to Static.parastorage.com and 29% (12 requests) were made to Sentry-next.wixpress.com. The less responsive or slowest element that took the longest time to load (357 ms) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (67%)

Content Size

1.7 MB

After Optimization

573.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Rollerskatingmuseum.org main page is 1.7 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. 40% of websites need less resources to load. HTML takes 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 977.6 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 221.2 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 977.6 kB or 82% of the original size.

Image Optimization

-40%

Potential reduce by 86.6 kB

  • Original 217.3 kB
  • After minification 130.7 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. Obviously, Rollerskating Museum needs image optimization as it can save up to 86.6 kB or 40% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-32%

Potential reduce by 104.8 kB

  • Original 326.7 kB
  • After minification 326.7 kB
  • After compression 221.9 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 104.8 kB or 32% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (48%)

Requests Now

23

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rollerskating 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 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

rollerskatingmuseum.org accessibility score

97

Accessibility Issues

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

Links do not have a discernible name

Best Practices

rollerskatingmuseum.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

High

Page has valid source maps

SEO Factors

rollerskatingmuseum.org SEO score

90

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

Links do not have descriptive text

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 Rollerskatingmuseum.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 Rollerskatingmuseum.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 data is detected on the main page of Rollerskating Museum. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: