Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

concertatsea.nl

Concert at SEA — Festival op de Brouwersdam, Zeeland

Page Load Speed

2.9 sec in total

First Response

345 ms

Resources Loaded

2 sec

Page Rendered

488 ms

concertatsea.nl screenshot

About Website

Click here to check amazing Concert At SEA content for Netherlands. Otherwise, check out these important facts you probably never knew about concertatsea.nl

De officiële website van Concert at SEA, een meerdaags muziekfestival op de Brouwersdam in Zeeland ☀️ 27 + 28 + 29 juni 2024

Visit concertatsea.nl

Key Findings

We analyzed Concertatsea.nl page load time and found that the first response time was 345 ms and then it took 2.5 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

concertatsea.nl performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value11.6 s

4/100

10%

TBT (Total Blocking Time)

Value18,800 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.332

34/100

15%

TTI (Time to Interactive)

Value30.2 s

0/100

10%

Network Requests Diagram

concertatsea.nl

345 ms

www.concertatsea.nl

479 ms

wp-emoji-release.min.js

93 ms

style.css

266 ms

css

26 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 90% of them (28 requests) were addressed to the original Concertatsea.nl, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (947 ms) belongs to the original domain Concertatsea.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 262.9 kB (13%)

Content Size

2.1 MB

After Optimization

1.8 MB

In fact, the total size of Concertatsea.nl main page is 2.1 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. 45% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 20.9 kB

  • Original 26.0 kB
  • After minification 22.9 kB
  • After compression 5.2 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 3.1 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 20.9 kB or 80% of the original size.

Image Optimization

-3%

Potential reduce by 54.8 kB

  • Original 1.7 MB
  • After minification 1.7 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. Concert At SEA images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 132.5 kB

  • Original 213.6 kB
  • After minification 213.6 kB
  • After compression 81.1 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 132.5 kB or 62% of the original size.

CSS Optimization

-78%

Potential reduce by 54.7 kB

  • Original 70.0 kB
  • After minification 69.9 kB
  • After compression 15.3 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. Concertatsea.nl needs all CSS files to be minified and compressed as it can save up to 54.7 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (15%)

Requests Now

26

After Optimization

22

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Concert At SEA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

concertatsea.nl accessibility score

81

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.

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

concertatsea.nl best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

concertatsea.nl 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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Concertatsea.nl can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Concertatsea.nl 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 Concert At SEA. 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: