Access antescofo.com. Metronaut: Music practice app for classical musicians

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value1,650 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.031

100/100

15%

TTI (Time to Interactive)

Value21.1 s

1/100

10%

metronautapp.com

292 ms

f433e6e698ee63f5.css

15 ms

b8e302d41b271438.css

38 ms

polyfills-78c92fac7aa8fdd8.js

54 ms

webpack-57fc55aaeb365e30.js

51 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Antescofo.com, 4% (1 request) were made to Fonts.googleapis.com and 4% (1 request) were made to Fonts.cdnfonts.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Metronautapp.com.

Content Size

616.7 kB

After Optimization

579.0 kB

In fact, the total size of Antescofo.com main page is 616.7 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. 35% of websites need less resources to load. Images take 575.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 29.9 kB

Original 40.8 kB
After minification 40.7 kB
After compression 10.9 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 29.9 kB or 73% of the original size.

Image Optimization

-1%

Potential reduce by 7.8 kB

Original 575.9 kB
After minification 568.1 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. Antescofo images are well optimized though.

Requests Now

After Optimization

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Antescofo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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/).

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 Antescofo.com 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 Antescofo.com 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 Antescofo. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: