Tools & Wizards About Us
oerc.ox.ac.uk screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

oerc.ox.ac.uk

Oxford e-Research Centre, Department of Engineering Science at Oxford

Page Load Speed

2.9 sec in total

First Response

137 ms

Resources Loaded

2.4 sec

Page Rendered

308 ms

oerc.ox.ac.uk screenshot

About Website

Click here to check amazing Oerc Ox content for United Kingdom. Otherwise, check out these important facts you probably never knew about oerc.ox.ac.uk

A multidisciplinary data science research and education institute, part of the Department of Engineering Science at the University of Oxford

Visit oerc.ox.ac.uk

Key Findings

We analyzed Oerc.ox.ac.uk page load time and found that the first response time was 137 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

oerc.ox.ac.uk performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value12.3 s

0/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value750 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.1

89/100

15%

TTI (Time to Interactive)

Value7.9 s

43/100

10%

Network Requests Diagram

oerc.ox.ac.uk

137 ms

oerc.ox.ac.uk

224 ms

gtm.js

87 ms

css

57 ms

bootstrap-grid.css

53 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 77% of them (53 requests) were addressed to the original Oerc.ox.ac.uk, 13% (9 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Ajax.aspnetcdn.com. The less responsive or slowest element that took the longest time to load (830 ms) belongs to the original domain Oerc.ox.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 222.0 kB (18%)

Content Size

1.2 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Oerc.ox.ac.uk main page is 1.2 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 877.4 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 86.5 kB

  • Original 99.5 kB
  • After minification 76.6 kB
  • After compression 13.0 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 22.9 kB, which is 23% 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 86.5 kB or 87% of the original size.

Image Optimization

-7%

Potential reduce by 65.6 kB

  • Original 877.4 kB
  • After minification 811.8 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. Oerc Ox images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 11.1 kB

  • Original 149.0 kB
  • After minification 149.0 kB
  • After compression 137.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-58%

Potential reduce by 58.9 kB

  • Original 102.0 kB
  • After minification 101.9 kB
  • After compression 43.1 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. Oerc.ox.ac.uk needs all CSS files to be minified and compressed as it can save up to 58.9 kB or 58% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (30%)

Requests Now

57

After Optimization

40

  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oerc Ox. 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 JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

oerc.ox.ac.uk

oerc.ox.ac.uk

137 ms

oerc.ox.ac.uk

oerc.ox.ac.uk

224 ms

gtm.js

gtm.js

87 ms

css

css

57 ms

bootstrap-grid.css

bootstrap-grid.css

53 ms

sass.css

sass.css

182 ms

additional.css

additional.css

201 ms

oerc.css

oerc.css

213 ms

jquery-2.2.4.min.js

jquery-2.2.4.min.js

47 ms

jquery.validate.min.js

jquery.validate.min.js

41 ms

jquery.validate.unobtrusive.min.js

jquery.validate.unobtrusive.min.js

42 ms

cookieControl-9.8.min.js

cookieControl-9.8.min.js

688 ms

polyfill.min.js

polyfill.min.js

213 ms

aspnet-validation.min.js

aspnet-validation.min.js

195 ms

subsites.css

subsites.css

194 ms

plugins.js

plugins.js

341 ms

global.js

global.js

573 ms

lazy-loading.js

lazy-loading.js

345 ms

ofi.min.js

ofi.min.js

336 ms

style.css

style.css

407 ms

print.css

print.css

186 ms

oerc.png

oerc.png

405 ms

oerc-banner-slider-1.png

oerc-banner-slider-1.png

736 ms

card-1a.jpg

card-1a.jpg

404 ms

card-1b.jpg

card-1b.jpg

69 ms

new-lecturers-and-also-profs.jpg

new-lecturers-and-also-profs.jpg

73 ms

adrian-and-yuanzhe-discussing-needs-project.jpg

adrian-and-yuanzhe-discussing-needs-project.jpg

74 ms

conferencesquad-in-the-summer.jpg

conferencesquad-in-the-summer.jpg

73 ms

adobestock_507965357.jpg

adobestock_507965357.jpg

74 ms

international-contemporary-ensemble-and-prism-music-ai-and-co-creation.png

international-contemporary-ensemble-and-prism-music-ai-and-co-creation.png

404 ms

aibc24-ramon-grannell-prakyat-gailani.jpeg

aibc24-ramon-grannell-prakyat-gailani.jpeg

403 ms

ostrails-logo.png

ostrails-logo.png

404 ms

the-state-of-open-data-from-theory-to-practice-cover-and-contents.jpg

the-state-of-open-data-from-theory-to-practice-cover-and-contents.jpg

465 ms

conferencesquad-in-the-summer.jpg

conferencesquad-in-the-summer.jpg

559 ms

adobestock_593888172.webp

adobestock_593888172.webp

465 ms

absolute-and-relative-increase-from-15-to-2.webp

absolute-and-relative-increase-from-15-to-2.webp

465 ms

biofair-logo-white-background.jpg

biofair-logo-white-background.jpg

465 ms

oxford-if-2019-a.jpg

oxford-if-2019-a.jpg

512 ms

image-from-ios-5.jpg

image-from-ios-5.jpg

652 ms

ska1_sa_closeup_highres.jpg

ska1_sa_closeup_highres.jpg

514 ms

narratives-through-data-event-2.jpg

narratives-through-data-event-2.jpg

514 ms

minas-gerais-2020-weather-event-infographic.jpg

minas-gerais-2020-weather-event-infographic.jpg

642 ms

philippe-rocca-serra.jpg

philippe-rocca-serra.jpg

549 ms

img_20190822_102822-photo-credit-david-murray-rust.jpg

img_20190822_102822-photo-credit-david-murray-rust.jpg

549 ms

260894981_582360733066482_577569879759152653_n.jpg

260894981_582360733066482_577569879759152653_n.jpg

579 ms

20191119_092721.jpg

20191119_092721.jpg

581 ms

img_7265-2.jpg

img_7265-2.jpg

577 ms

meld-application-lohengrin-time-machine-landing-page.jpg

meld-application-lohengrin-time-machine-landing-page.jpg

604 ms

janetbpierrehumbertbyianwallman-2.jpg

janetbpierrehumbertbyianwallman-2.jpg

797 ms

dh-2019-participants.jpg

dh-2019-participants.jpg

605 ms

img_3893.jpg

img_3893.jpg

634 ms

picture2.png

picture2.png

649 ms

logo.svg

logo.svg

830 ms

athena-swan-bronze-transparent-2704640279-1.png

athena-swan-bronze-transparent-2704640279-1.png

670 ms

rgb_prize-winners-black-1.png

rgb_prize-winners-black-1.png

675 ms

wlpkgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXfbITBVsno5w.ttf

wlpkgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXfbITBVsno5w.ttf

331 ms

wlpkgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXfbJ3BFsno5w.ttf

wlpkgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXfbJ3BFsno5w.ttf

391 ms

wlpkgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXfbJbA1sno5w.ttf

wlpkgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXfbJbA1sno5w.ttf

440 ms

wlphgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXfbqoIEs.ttf

wlphgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXfbqoIEs.ttf

395 ms

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfw6-_B2sg.ttf

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfw6-_B2sg.ttf

392 ms

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfp66_B2sg.ttf

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfp66_B2sg.ttf

394 ms

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfi6m_B2sg.ttf

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRfi6m_B2sg.ttf

393 ms

wlpvgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXeIqv.ttf

wlpvgxjLBV1hqnzfr-F8sEYMB0Yybp0mudRXeIqv.ttf

394 ms

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRf06i_B2sg.ttf

wlpigxjLBV1hqnzfr-F8sEYMB0Yybp0mudRf06i_B2sg.ttf

437 ms

icomoon.ttf

icomoon.ttf

708 ms

card-1b.jpg

card-1b.jpg

705 ms

biofair-logo-white-background.jpg

biofair-logo-white-background.jpg

199 ms

adobestock_593888172.webp

adobestock_593888172.webp

35 ms

absolute-and-relative-increase-from-15-to-2.webp

absolute-and-relative-increase-from-15-to-2.webp

32 ms

Accessibility Review

oerc.ox.ac.uk accessibility score

88

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

Best Practices

oerc.ox.ac.uk 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

oerc.ox.ac.uk SEO score

88

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

    EN

  • Encoding

    UTF-8

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

oerc.ox.ac.uk

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