4.9 sec in total
309 ms
4 sec
571 ms
Click here to check amazing Jbyb content. Otherwise, check out these important facts you probably never knew about jbyb.net
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Visit jbyb.netWe analyzed Jbyb.net page load time and found that the first response time was 309 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
jbyb.net performance score
name
value
score
weighting
Value2.1 s
80/100
10%
Value2.2 s
95/100
25%
Value4.9 s
64/100
10%
Value460 ms
61/100
30%
Value0.012
100/100
15%
Value4.6 s
82/100
10%
309 ms
915 ms
10 ms
9 ms
376 ms
Our browser made a total of 118 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Jbyb.net, 47% (55 requests) were made to Erasmusworld.org and 18% (21 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Erasmusworld.org.
Page size can be reduced by 56.1 kB (7%)
750.9 kB
694.8 kB
In fact, the total size of Jbyb.net main page is 750.9 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. 65% of websites need less resources to load. Images take 599.5 kB which makes up the majority of the site volume.
Potential reduce by 42.7 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 42.7 kB or 74% of the original size.
Potential reduce by 13.2 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. Jbyb images are well optimized though.
Potential reduce by 210 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.
Number of requests can be reduced by 66 (57%)
115
49
The browser has sent 115 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jbyb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
jbyb.net
309 ms
www.erasmusworld.org
915 ms
ga.js
10 ms
adsbygoogle.js
9 ms
js.php
376 ms
css.php
234 ms
ajs.php
651 ms
brand
34 ms
show_ads.js
28 ms
__utm.gif
32 ms
brand
38 ms
blank.gif
97 ms
4.jpg
465 ms
7.jpg
311 ms
8.jpg
249 ms
5.jpg
871 ms
erasmus_thumb.jpg
184 ms
apprendre-anglais_thumb.jpg
234 ms
haagse_hogeschool_thumb.jpg
256 ms
Helsinki_University_thumb.jpg
278 ms
cv.jpg
327 ms
coloc.jpg
340 ms
recrut.jpg
365 ms
transpixel.gif
388 ms
photo.gif
407 ms
ef-logo.png
424 ms
antenna.ayads.co
233 ms
all.js
11 ms
antenna.ayads.co
223 ms
antenna.ayads.co
222 ms
page-bg.png
426 ms
shadow-l.png
455 ms
shadow-r.png
478 ms
main-tl.png
496 ms
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504 ms
main-bl.png
530 ms
main-br.png
533 ms
header-bg.png
559 ms
spriteme1.png
952 ms
horiz-menu-top.png
570 ms
submenu-div.png
626 ms
sub-menu-bg.png
833 ms
google_custom_search_watermark.gif
57 ms
zrt_lookup.html
55 ms
show_ads_impl.js
55 ms
189 ms
xd_arbiter.php
36 ms
xd_arbiter.php
95 ms
ads
186 ms
showcase-overlay2.png
713 ms
li-arrow.png
715 ms
showcase-overlay1.png
716 ms
osd.js
83 ms
main-content-bg.png
1741 ms
ads
190 ms
module-tr.png
695 ms
module-tl.png
694 ms
module-br.png
790 ms
module-bl.png
788 ms
rokmininews-tl.png
784 ms
rokmininews-tr.png
783 ms
rokmininews-bl.png
831 ms
ca-pub-6696118570609094.js
26 ms
pla
26 ms
rokmininews-br.png
791 ms
spriteme2.png
798 ms
module2-tr.png
777 ms
module2-tl.png
755 ms
xd_arbiter.php
14 ms
module2-br.png
801 ms
page.php
327 ms
abg.js
23 ms
module2-bl.png
775 ms
bottom-menu-bg.png
774 ms
bottom-bg.png
749 ms
footer-bg.png
737 ms
footer-bl.png
774 ms
footer-br.png
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Z7dsddbCfhx.css
38 ms
Ksen2kZF4GW.css
46 ms
lmW_fTfMaLL.css
40 ms
m3UplzJmRpp.css
48 ms
q68gy-v_YMF.js
47 ms
4D4UiA9M0SK.js
72 ms
ihptErjAmMX.js
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542275_402453129822693_388732058_n.jpg
146 ms
safe_image.php
182 ms
lRyN50VcaFW.js
58 ms
safe_image.php
87 ms
safe_image.php
233 ms
safe_image.php
506 ms
safe_image.php
83 ms
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drophere.png
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91 ms
jbyb.net accessibility score
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
Buttons do not have an accessible name
Links do not have a discernible name
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
[id] attributes on active, focusable elements are not unique
jbyb.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
jbyb.net SEO score
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
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jbyb.net 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 Jbyb.net 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.
jbyb.net
Open Graph description is not detected on the main page of Jbyb. 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: