5.7 sec in total
1.6 sec
3.7 sec
356 ms
Visit chauves-souris.be now to see the best up-to-date Chauves Souris content and also check out these interesting facts you probably never knew about chauves-souris.be
Visit chauves-souris.beWe analyzed Chauves-souris.be page load time and found that the first response time was 1.6 sec and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
chauves-souris.be performance score
name
value
score
weighting
Value4.1 s
20/100
10%
Value8.4 s
2/100
25%
Value7.1 s
31/100
10%
Value2,090 ms
7/100
30%
Value0.061
97/100
15%
Value14.2 s
9/100
10%
1590 ms
119 ms
82 ms
893 ms
891 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Chauves-souris.be, 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Natagora.be.
Page size can be reduced by 47.2 kB (15%)
320.7 kB
273.5 kB
In fact, the total size of Chauves-souris.be main page is 320.7 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. 25% of websites need less resources to load. Images take 244.0 kB which makes up the majority of the site volume.
Potential reduce by 16.5 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 16.5 kB or 70% of the original size.
Potential reduce by 1.5 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. Chauves Souris images are well optimized though.
Potential reduce by 671 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 28.5 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. Chauves-souris.be needs all CSS files to be minified and compressed as it can save up to 28.5 kB or 82% of the original size.
Number of requests can be reduced by 10 (25%)
40
30
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chauves Souris. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for CSS and as a result speed up the page load time.
plecotus
1590 ms
index.php
119 ms
reset.css
82 ms
page.css
893 ms
page.css
891 ms
typographie_natagora.css
158 ms
mainmenu.css
897 ms
stylesheet_0265f0df8c.css
893 ms
javascript_9a38f34785.js
891 ms
reset.css
160 ms
typographie_natagora.css
161 ms
page.css
84 ms
page.css
82 ms
javascript_9a38f34785.js
80 ms
stylesheet_0265f0df8c.css
82 ms
mainmenu.css
82 ms
pattern.gif
86 ms
header.png
81 ms
Logo-Natagora_GT.gif
83 ms
Logo-plecotus.gif
84 ms
Accueil.jpg
85 ms
new-window.gif
81 ms
csm_InventaireHivernal_GrotteMerveilleuseDinant_GillesSanMartin_6758eda4de.jpg
160 ms
csm_Petit_Rhinolophe_JLGathoye_0bce691173.jpg
161 ms
csm_Aubel_Hellesrtop_20150802_GillesSanMartin_8d9fe80681.jpg
162 ms
csm_S_81R_236625ec42.jpg
164 ms
liste.jpg
161 ms
csm_DSCN0017_7ea19c0468.jpg
164 ms
csm_Kiro_8febb92d2a.gif
237 ms
csm_IMG_1038_0af6d24d3d.jpg
239 ms
csm_Film_8b58767f4a.jpg
239 ms
csm_Brochure_Couv_Nos-chauves-souris_BR_89653789bf.jpg
240 ms
logo_RW_BXL_01.jpg
241 ms
don-70chauves-souris.jpg
241 ms
membre-don-2.jpg
469 ms
devenez_membre-p.jpg
315 ms
faites_un_don-p.jpg
315 ms
right-bg-bt-p.gif
316 ms
right-bg-p.gif
319 ms
img-bg.gif
319 ms
logo-rw.gif
394 ms
Logo-plecotus-p.gif
395 ms
natagora-footer.gif
395 ms
aves-footer.gif
397 ms
rnob-footer.gif
398 ms
bnvs-footer.gif
471 ms
birdlife-footer.gif
472 ms
ga.js
8 ms
__utm.gif
14 ms
Logo-Natagora_GT.gif
399 ms
Logo-plecotus.gif
402 ms
Accueil.jpg
557 ms
csm_InventaireHivernal_GrotteMerveilleuseDinant_GillesSanMartin_6758eda4de.jpg
418 ms
csm_Petit_Rhinolophe_JLGathoye_0bce691173.jpg
418 ms
csm_Aubel_Hellesrtop_20150802_GillesSanMartin_8d9fe80681.jpg
419 ms
csm_S_81R_236625ec42.jpg
418 ms
csm_DSCN0017_7ea19c0468.jpg
420 ms
csm_Kiro_8febb92d2a.gif
419 ms
csm_IMG_1038_0af6d24d3d.jpg
424 ms
csm_Film_8b58767f4a.jpg
419 ms
csm_Brochure_Couv_Nos-chauves-souris_BR_89653789bf.jpg
420 ms
logo_RW_BXL_01.jpg
442 ms
don-70chauves-souris.jpg
479 ms
logo-rw.gif
338 ms
chauves-souris.be accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
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
Links do not have a discernible name
chauves-souris.be best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
chauves-souris.be SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
FR
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chauves-souris.be can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it does not match the claimed English language. Our system also found out that Chauves-souris.be 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.
chauves-souris.be
Open Graph description is not detected on the main page of Chauves Souris. 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: