Report Summary

  • 61

    Performance

    Renders faster than
    77% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

orda.sheffield.ac.uk

The University of Sheffield - (Online Research Data) live

Page Load Speed

4.2 sec in total

First Response

914 ms

Resources Loaded

2.5 sec

Page Rendered

764 ms

orda.sheffield.ac.uk screenshot

About Website

Click here to check amazing Orda Sheffield content for United Kingdom. Otherwise, check out these important facts you probably never knew about orda.sheffield.ac.uk

ORDA (Online Research Data) - The hub for managing and sharing research data at the University of Sheffield

Visit orda.sheffield.ac.uk

Key Findings

We analyzed Orda.sheffield.ac.uk page load time and found that the first response time was 914 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

orda.sheffield.ac.uk performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value4.5 s

73/100

10%

TBT (Total Blocking Time)

Value310 ms

77/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.5 s

70/100

10%

Network Requests Diagram

orda.sheffield.ac.uk

914 ms

bootstrap.min.css

108 ms

style.css

194 ms

Chart.min.css

259 ms

bootstrap-select.min.css

278 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 54% of them (25 requests) were addressed to the original Orda.sheffield.ac.uk, 22% (10 requests) were made to Fonts.gstatic.com and 13% (6 requests) were made to S3-eu-west-1.amazonaws.com. The less responsive or slowest element that took the longest time to load (914 ms) belongs to the original domain Orda.sheffield.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 228.0 kB (15%)

Content Size

1.6 MB

After Optimization

1.3 MB

In fact, the total size of Orda.sheffield.ac.uk 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. 55% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 41.5 kB

  • Original 48.9 kB
  • After minification 36.5 kB
  • After compression 7.5 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 12.4 kB, which is 25% 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 41.5 kB or 85% of the original size.

Image Optimization

-12%

Potential reduce by 182.1 kB

  • Original 1.5 MB
  • After minification 1.3 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. Obviously, Orda Sheffield needs image optimization as it can save up to 182.1 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-11%

Potential reduce by 4.5 kB

  • Original 39.7 kB
  • After minification 39.3 kB
  • After compression 35.2 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. Orda.sheffield.ac.uk needs all CSS files to be minified and compressed as it can save up to 4.5 kB or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (29%)

Requests Now

34

After Optimization

24

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Orda Sheffield. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

orda.sheffield.ac.uk accessibility score

71

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 input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Buttons do not have an accessible name

High

Form elements do not have associated labels

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

orda.sheffield.ac.uk best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

orda.sheffield.ac.uk SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Orda.sheffield.ac.uk 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 Orda.sheffield.ac.uk 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 Orda Sheffield. 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: