Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

mirror.umd.edu

University of Maryland Free Software Mirror

Page Load Speed

492 ms in total

First Response

37 ms

Resources Loaded

292 ms

Page Rendered

163 ms

mirror.umd.edu screenshot

About Website

Welcome to mirror.umd.edu homepage info - get ready to check Mirror Umd best content for United States right away, or after learning these important things about mirror.umd.edu

University of Maryland Free Software Mirror

Visit mirror.umd.edu

Key Findings

We analyzed Mirror.umd.edu page load time and found that the first response time was 37 ms and then it took 455 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

mirror.umd.edu performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.2 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)

Value1.1 s

100/100

10%

Network Requests Diagram

mirror.umd.edu

37 ms

jquery-1.4.4.min.js

37 ms

jquery-ui-1.8.9.custom.min.js

80 ms

xhtml-962px.css

28 ms

button.js

119 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 64% of them (9 requests) were addressed to the original Mirror.umd.edu, 14% (2 requests) were made to Polygrant.com and 14% (2 requests) were made to Chart.apis.google.com. The less responsive or slowest element that took the longest time to load (119 ms) relates to the external source Polygrant.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 233.2 kB (68%)

Content Size

343.6 kB

After Optimization

110.4 kB

In fact, the total size of Mirror.umd.edu main page is 343.6 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. 15% of websites need less resources to load. Javascripts take 285.9 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 12.4 kB

  • Original 16.6 kB
  • After minification 13.8 kB
  • After compression 4.2 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 2.8 kB, which is 17% 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 12.4 kB or 75% of the original size.

Image Optimization

-30%

Potential reduce by 11.8 kB

  • Original 39.8 kB
  • After minification 28.0 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. Obviously, Mirror Umd needs image optimization as it can save up to 11.8 kB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-73%

Potential reduce by 208.1 kB

  • Original 285.9 kB
  • After minification 279.5 kB
  • After compression 77.8 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 208.1 kB or 73% of the original size.

CSS Optimization

-70%

Potential reduce by 874 B

  • Original 1.2 kB
  • After minification 883 B
  • After compression 376 B

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. Mirror.umd.edu needs all CSS files to be minified and compressed as it can save up to 874 B or 70% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

13

After Optimization

13

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mirror Umd. According to our analytics all requests are already optimized.

Accessibility Review

mirror.umd.edu accessibility score

84

Accessibility Issues

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

Best Practices

mirror.umd.edu 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

SEO Factors

mirror.umd.edu 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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

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