Report Summary

  • 25

    Performance

    Renders faster than
    45% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

efvv.eu

European Forum for Vaccine Vigilance - EFVV - European Forum for Vaccine Vigilance

Page Load Speed

14.1 sec in total

First Response

1.1 sec

Resources Loaded

11.7 sec

Page Rendered

1.3 sec

efvv.eu screenshot

About Website

Visit efvv.eu now to see the best up-to-date EFVV content and also check out these interesting facts you probably never knew about efvv.eu

An alliance of member-organisations and individual members from 25 European countries. Our member-organisations consist of consumer groups and pro-choice groups whose members in turn include medical p...

Visit efvv.eu

Key Findings

We analyzed Efvv.eu page load time and found that the first response time was 1.1 sec and then it took 13 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

efvv.eu performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value2,690 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.7 s

29/100

10%

Network Requests Diagram

efvv.eu

1084 ms

wp-emoji-release.min.js

109 ms

themify.common.min.css

207 ms

style.min.css

207 ms

public.css

210 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 77% of them (47 requests) were addressed to the original Efvv.eu, 13% (8 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (8.6 sec) belongs to the original domain Efvv.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 620.3 kB (43%)

Content Size

1.4 MB

After Optimization

813.0 kB

In fact, the total size of Efvv.eu main page is 1.4 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 628.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 104.8 kB

  • Original 144.5 kB
  • After minification 131.6 kB
  • After compression 39.7 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 104.8 kB or 73% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 628.0 kB
  • After minification 628.0 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. EFVV images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 109.0 kB

  • Original 181.4 kB
  • After minification 177.9 kB
  • After compression 72.4 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 109.0 kB or 60% of the original size.

CSS Optimization

-85%

Potential reduce by 406.5 kB

  • Original 479.5 kB
  • After minification 453.2 kB
  • After compression 73.0 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. Efvv.eu needs all CSS files to be minified and compressed as it can save up to 406.5 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (69%)

Requests Now

49

After Optimization

15

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of EFVV. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

efvv.eu accessibility score

92

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

[id] attributes on active, focusable elements are not unique

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

efvv.eu best practices score

67

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

Browser errors were logged to the console

SEO Factors

efvv.eu SEO score

89

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

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