Tools & Wizards About Us
herc.ac.uk screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

herc.ac.uk

The Health eResearch Centre | HeRC | #datasaveslives

Page Load Speed

4 sec in total

First Response

714 ms

Resources Loaded

3.1 sec

Page Rendered

208 ms

herc.ac.uk screenshot

About Website

Visit herc.ac.uk now to see the best up-to-date HeRC content and also check out these interesting facts you probably never knew about herc.ac.uk

The Health eResearch Centre is a world-leading digital health network that unites and provides data-intensive research and education across North England.

Visit herc.ac.uk

Key Findings

We analyzed Herc.ac.uk page load time and found that the first response time was 714 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 60% of websites can load faster.

Performance Metrics

herc.ac.uk performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value580 ms

51/100

30%

CLS (Cumulative Layout Shift)

Value0.075

95/100

15%

TTI (Time to Interactive)

Value12.8 s

13/100

10%

Network Requests Diagram

herc.ac.uk

714 ms

www.herc.ac.uk

528 ms

style.min.css

340 ms

genericons.css

351 ms

bg-show-hide.css

299 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 57% of them (36 requests) were addressed to the original Herc.ac.uk, 21% (13 requests) were made to Platform.twitter.com and 11% (7 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Herc.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 34.2 kB (10%)

Content Size

341.1 kB

After Optimization

306.9 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Herc.ac.uk main page is 341.1 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. 55% of websites need less resources to load. Images take 298.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 34.2 kB

  • Original 42.6 kB
  • After minification 40.4 kB
  • After compression 8.4 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 34.2 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 298.4 kB
  • After minification 298.4 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. HeRC images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 76 B

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.

Requests Breakdown

Number of requests can be reduced by 40 (75%)

Requests Now

53

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of HeRC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

herc.ac.uk

herc.ac.uk

714 ms

www.herc.ac.uk

www.herc.ac.uk

528 ms

style.min.css

style.min.css

340 ms

genericons.css

genericons.css

351 ms

bg-show-hide.css

bg-show-hide.css

299 ms

quotes-collection.css

quotes-collection.css

277 ms

select2.min.css

select2.min.css

375 ms

style.css

style.css

371 ms

slick.css

slick.css

558 ms

style.css

style.css

579 ms

default.css

default.css

605 ms

addthis_wordpress_public.min.css

addthis_wordpress_public.min.css

458 ms

jquery.min.js

jquery.min.js

723 ms

jquery-migrate.min.js

jquery-migrate.min.js

654 ms

quotes-collection.js

quotes-collection.js

580 ms

addthis_widget.js

addthis_widget.js

35 ms

uej8eoh.js

uej8eoh.js

108 ms

widgets.js

widgets.js

30 ms

effect.min.js

effect.min.js

898 ms

effect-slide.min.js

effect-slide.min.js

690 ms

effect-highlight.min.js

effect-highlight.min.js

861 ms

effect-fold.min.js

effect-fold.min.js

708 ms

effect-blind.min.js

effect-blind.min.js

937 ms

bg-show-hide.js

bg-show-hide.js

969 ms

slick.min.js

slick.min.js

890 ms

select2.min.js

select2.min.js

1068 ms

jquery.matchHeight.min.js

jquery.matchHeight.min.js

1151 ms

jquery.lazyload.min.js

jquery.lazyload.min.js

355 ms

scripts.min.js

scripts.min.js

1169 ms

navigation.js

navigation.js

1010 ms

skip-link-focus-fix.js

skip-link-focus-fix.js

1235 ms

wp-embed.min.js

wp-embed.min.js

1286 ms

264239790

264239790

284 ms

herc-logo.svg

herc-logo.svg

520 ms

vimeo.svg

vimeo.svg

418 ms

twitter.svg

twitter.svg

522 ms

iStock_000003134803Large-1920x630.jpg

iStock_000003134803Large-1920x630.jpg

835 ms

hex-overlay.svg

hex-overlay.svg

709 ms

hex-bg-vert_white.svg

hex-bg-vert_white.svg

770 ms

map.svg

map.svg

768 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

990 ms

api.js

api.js

12 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

31 ms

d

d

28 ms

d

d

64 ms

d

d

31 ms

d

d

106 ms

d

d

64 ms

d

d

60 ms

settings

settings

114 ms

timeline.e108540dddc96e4b707f5cf259a582d7.js

timeline.e108540dddc96e4b707f5cf259a582d7.js

3 ms

HeRC_Tweets

HeRC_Tweets

69 ms

p.gif

p.gif

30 ms

polyfills-a40ef1678bae11e696dba45124eadd70.js

polyfills-a40ef1678bae11e696dba45124eadd70.js

5 ms

runtime-b1c52fd0a13ead5fcf6b.js

runtime-b1c52fd0a13ead5fcf6b.js

30 ms

modules-96ebc7ac3ad66d681a3d.js

modules-96ebc7ac3ad66d681a3d.js

43 ms

main-babd9234dc048fb47339.js

main-babd9234dc048fb47339.js

42 ms

_app-a9c9f1a99e4414675fb1.js

_app-a9c9f1a99e4414675fb1.js

42 ms

%5BscreenName%5D-0517bdda27d5006a5a2d.js

%5BscreenName%5D-0517bdda27d5006a5a2d.js

41 ms

_buildManifest.js

_buildManifest.js

41 ms

_ssgManifest.js

_ssgManifest.js

83 ms

8526.0c32a8f0cfc5749221a3.js

8526.0c32a8f0cfc5749221a3.js

12 ms

1755.07a49c40b12af4f75780.js

1755.07a49c40b12af4f75780.js

13 ms

Accessibility Review

herc.ac.uk accessibility score

90

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

Links do not have a discernible name

Best Practices

herc.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

herc.ac.uk SEO score

93

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 Herc.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 Herc.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

herc.ac.uk

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