Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

concerts-metal.com

Agenda des concerts et festivals Metal / Hardrock / Punk à travers le monde

Page Load Speed

5.7 sec in total

First Response

338 ms

Resources Loaded

5.1 sec

Page Rendered

287 ms

concerts-metal.com screenshot

About Website

Click here to check amazing Concerts Metal content for France. Otherwise, check out these important facts you probably never knew about concerts-metal.com

Agenda des concerts et festivals Metal / Hardrock / Punk à travers le monde

Visit concerts-metal.com

Key Findings

We analyzed Concerts-metal.com page load time and found that the first response time was 338 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

concerts-metal.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value16.9 s

0/100

10%

TBT (Total Blocking Time)

Value450 ms

62/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

Network Requests Diagram

concerts-metal.com

338 ms

www.concerts-metal.com

1151 ms

design-min-640.css

207 ms

prototype.js

350 ms

effects.js

261 ms

Our browser made a total of 170 requests to load all elements on the main page. We found that 86% of them (147 requests) were addressed to the original Concerts-metal.com, 4% (6 requests) were made to Pagead2.googlesyndication.com and 3% (5 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Concerts-metal.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 330.8 kB (27%)

Content Size

1.2 MB

After Optimization

916.6 kB

In fact, the total size of Concerts-metal.com 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. 50% of websites need less resources to load. Images take 922.6 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 37.1 kB

  • Original 45.8 kB
  • After minification 44.8 kB
  • After compression 8.7 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 37.1 kB or 81% of the original size.

Image Optimization

-16%

Potential reduce by 144.7 kB

  • Original 922.6 kB
  • After minification 777.9 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, Concerts Metal needs image optimization as it can save up to 144.7 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-52%

Potential reduce by 140.8 kB

  • Original 268.4 kB
  • After minification 259.6 kB
  • After compression 127.6 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 140.8 kB or 52% of the original size.

CSS Optimization

-77%

Potential reduce by 8.2 kB

  • Original 10.6 kB
  • After minification 8.6 kB
  • After compression 2.4 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. Concerts-metal.com needs all CSS files to be minified and compressed as it can save up to 8.2 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 115 (69%)

Requests Now

166

After Optimization

51

The browser has sent 166 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Concerts Metal. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

concerts-metal.com accessibility score

96

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

Best Practices

concerts-metal.com 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

concerts-metal.com SEO score

100

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

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    FR

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Concerts-metal.com can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Concerts-metal.com 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 Concerts Metal. 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: