Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

yellowcard.mhra.gov.uk

Yellow Card | Making medicines and medical devices safer

Page Load Speed

3.2 sec in total

First Response

646 ms

Resources Loaded

2.3 sec

Page Rendered

288 ms

yellowcard.mhra.gov.uk screenshot

About Website

Welcome to yellowcard.mhra.gov.uk homepage info - get ready to check Yellow Card Mhra best content for China right away, or after learning these important things about yellowcard.mhra.gov.uk

MHRA Homepage for reporting of suspected side effects or adverse drug reactions to any medicines or vaccines, as well as medical device incidents

Visit yellowcard.mhra.gov.uk

Key Findings

We analyzed Yellowcard.mhra.gov.uk page load time and found that the first response time was 646 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

yellowcard.mhra.gov.uk performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

76/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value4.8 s

67/100

10%

TBT (Total Blocking Time)

Value1,520 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.637

9/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

yellowcard.mhra.gov.uk

646 ms

yellowcard.mhra.gov.uk

653 ms

jquery-ui-1.8.18.custom.css

81 ms

jquery.qtip.css

162 ms

screen.css

394 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 96% of them (43 requests) were addressed to the original Yellowcard.mhra.gov.uk, 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (653 ms) belongs to the original domain Yellowcard.mhra.gov.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 621.0 kB (75%)

Content Size

830.7 kB

After Optimization

209.7 kB

In fact, the total size of Yellowcard.mhra.gov.uk main page is 830.7 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. 30% of websites need less resources to load. Javascripts take 562.1 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 12.8 kB

  • Original 17.0 kB
  • After minification 15.0 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 2.0 kB, which is 12% 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 12.8 kB or 75% of the original size.

Image Optimization

-21%

Potential reduce by 8.9 kB

  • Original 42.5 kB
  • After minification 33.6 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, Yellow Card Mhra needs image optimization as it can save up to 8.9 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 416.5 kB

  • Original 562.1 kB
  • After minification 488.9 kB
  • After compression 145.6 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 416.5 kB or 74% of the original size.

CSS Optimization

-87%

Potential reduce by 182.9 kB

  • Original 209.1 kB
  • After minification 139.9 kB
  • After compression 26.2 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. Yellowcard.mhra.gov.uk needs all CSS files to be minified and compressed as it can save up to 182.9 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (44%)

Requests Now

43

After Optimization

24

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yellow Card Mhra. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

yellowcard.mhra.gov.uk accessibility score

79

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.

High

ARIA IDs are not unique

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

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

yellowcard.mhra.gov.uk best practices score

83

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

SEO Factors

yellowcard.mhra.gov.uk SEO score

98

Search Engine Optimization Advices

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yellowcard.mhra.gov.uk 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 Yellowcard.mhra.gov.uk main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Yellow Card Mhra. 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: