Access astrociel.net. Astronomie - Les planètes du système solaire

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value6.2 s

43/100

10%

TBT (Total Blocking Time)

Value6,280 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value15.2 s

7/100

10%

astrociel.net

337 ms

www.astrociel.net

484 ms

index.php

389 ms

pied_page.css

209 ms

plusone.js

67 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 56% of them (38 requests) were addressed to the original Astrociel.net, 12% (8 requests) were made to Apis.google.com and 6% (4 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Meteo.be.

Content Size

515.9 kB

After Optimization

396.3 kB

In fact, the total size of Astrociel.net main page is 515.9 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. 50% of websites need less resources to load. Images take 374.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 47.0 kB

Original 58.0 kB
After minification 48.5 kB
After compression 11.0 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 9.4 kB, which is 16% 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 47.0 kB or 81% of the original size.

Image Optimization

-7%

Potential reduce by 26.8 kB

Original 374.0 kB
After minification 347.1 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. Astrociel images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 44.7 kB

Original 82.6 kB
After minification 76.3 kB
After compression 37.8 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 44.7 kB or 54% of the original size.

CSS Optimization

-76%

Potential reduce by 1.1 kB

Original 1.4 kB
After minification 1.3 kB
After compression 338 B

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. Astrociel.net needs all CSS files to be minified and compressed as it can save up to 1.1 kB or 76% of the original size.

Requests Now

After Optimization

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Astrociel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

These are opportunities to improve keyboard navigation in your application.

High

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

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.

High

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

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

High

Browser errors were logged to the console

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

High

Document uses plugins

Language and Encoding

Language Detected

N/A
Language Claimed

FR
Encoding

ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Astrociel.net 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), while the claimed language is French. Our system also found out that Astrociel.net 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

astrociel.net

Open Graph description is not detected on the main page of Astrociel. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Astronomie - Les planètes du système solaire

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

astrociel.net

www.astrociel.net

index.php

pied_page.css

plusone.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

astrociel.net

www.astrociel.net

index.php

pied_page.css

plusone.js

scroll.js

brand

geoloc.php

mm_menu.js

show_ads.js

urchin.js

cb=gapi.loaded_0

Earth

carteciel.jpg

orbitdisplay.aspx

temp2.png

image.jpg

background.jpg

ban_pluslarge.jpg

telescope.png

recherche.png

page_rank4.gif

info.png

icone_rss.png

decouvrirlenet.jpg

astropolis.jpg

sondage.jpg

citation.jpg

notes_musique.gif

etoile.png

saturne.jpg

decouverte.jpg

photoshop.gif

meteo_monde.png

iris_oeil.png

lesaviezvous.jpg

merci.jpg

valere_leroy.jpg

fabian_van_acker.jpg

rolf_arcan.jpg

joel_bavais.jpg

laurent_laveder.jpg

guillaume_bertrand2.jpg