2.6 sec in total
137 ms
1.9 sec
573 ms
Click here to check amazing Cobis content for Nigeria. Otherwise, check out these important facts you probably never knew about cobis.org.uk
Home - Council of British International Schools
Visit cobis.org.ukWe analyzed Cobis.org.uk page load time and found that the first response time was 137 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
cobis.org.uk performance score
name
value
score
weighting
Value7.6 s
0/100
10%
Value15.2 s
0/100
25%
Value12.0 s
4/100
10%
Value1,150 ms
22/100
30%
Value1.065
2/100
15%
Value13.4 s
11/100
10%
137 ms
522 ms
86 ms
13 ms
32 ms
Our browser made a total of 108 requests to load all elements on the main page. We found that 58% of them (63 requests) were addressed to the original Cobis.org.uk, 15% (16 requests) were made to Newjs.finalsite.com and 5% (5 requests) were made to Newcss.finalsite.com. The less responsive or slowest element that took the longest time to load (522 ms) belongs to the original domain Cobis.org.uk.
Page size can be reduced by 1.1 MB (31%)
3.4 MB
2.3 MB
In fact, the total size of Cobis.org.uk main page is 3.4 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. 70% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.
Potential reduce by 51.0 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. 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 51.0 kB or 78% of the original size.
Potential reduce by 97.1 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. Cobis images are well optimized though.
Potential reduce by 639.9 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 639.9 kB or 70% of the original size.
Potential reduce by 281.2 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. Cobis.org.uk needs all CSS files to be minified and compressed as it can save up to 281.2 kB or 83% of the original size.
Number of requests can be reduced by 37 (37%)
101
64
The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cobis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.
cobis.org.uk
137 ms
www.cobis.org.uk
522 ms
styles.cfm
86 ms
ss.css
13 ms
jquery.min.js
32 ms
fs_global.js
31 ms
jquery.fsBreakly.js
32 ms
blog.js
31 ms
news.css
12 ms
jquery.countdown.min.js
102 ms
utilities.js
30 ms
container-min.js
29 ms
calendar-min.js
37 ms
cookie-min.js
48 ms
dropbox.js
48 ms
calendar.css
47 ms
container.css
48 ms
container-skin.css
47 ms
structure.css
8 ms
calstyle8.20131022101624.css
63 ms
jquery.ui.1.8rc3.css
52 ms
global_vars.js
70 ms
fsSlider.js
73 ms
home.css
66 ms
rss-feed.js
43 ms
jquery.ui.min.js
7 ms
flash_headers.js
33 ms
ga.js
63 ms
main.css
62 ms
logo.gif
76 ms
about_btn.gif
73 ms
schools_btn.gif
71 ms
joinus_btn.gif
71 ms
conf_btn.gif
71 ms
news_btn.gif
87 ms
servcies_btn.gif
91 ms
members_btn.gif
91 ms
recruitement_btn.gif
86 ms
member_btn.gif
89 ms
ql_btn.gif
91 ms
sitemap_btn.gif
125 ms
search_label.gif
103 ms
search_sbmt.png
123 ms
COBISYouTube.png
126 ms
new-g-plus-icon-32.png
125 ms
twitter_32.png
125 ms
facebook_32.png
156 ms
linkedin_32.png
157 ms
social_flickr_box.png
279 ms
overlay.png
295 ms
__utm.gif
40 ms
bottomcont_bg.gif
231 ms
top_bg.png
229 ms
234.large.jpg
247 ms
space.gif
26 ms
topcont_bg.jpg
222 ms
Group_photo.JPG
240 ms
Whole_group.jpg
284 ms
ac_PROMO_photo.JPG
241 ms
2016_Annual_Conference_Banner.jpg
455 ms
TD-cobis.png
224 ms
College_Board_Banner_Ad.png
239 ms
logo_trans.png
269 ms
233.large.jpg
238 ms
232.large.jpg
238 ms
231.large.jpg
239 ms
230.large.jpg
236 ms
rssfeed.php
188 ms
poweredBy.svg
10 ms
22HUWsoGMlQ
198 ms
ui-bg_flat_75_ffffff_40x100.png
85 ms
modal_close.gif
36 ms
ui-icons_222222_256x240.png
32 ms
loadingbar.gif
132 ms
jquery.min.js
76 ms
rss-feed-style.js
30 ms
html;charset=utf-8,%3Chtml%3E%3Chead%3E%3Cscript%20type%3D%22text%2Fjavascript%22%3Ewindow.onresize%3Dfunction()%7Bwindow.parent.YAHOO.widget.Module.textResizeEvent.fire()%3B%7D%3B%3C%2Fscript%3E%3C%2Fhead%3E%3Cbody%3E%3C%2Fbody%3E%3C%2Fhtml%3E
17 ms
www-embed-player-vflQrT_sR.css
78 ms
www-embed-player.js
107 ms
__utm.gif
66 ms
__utm.gif
62 ms
6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js
78 ms
ad_status.js
35 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
114 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
115 ms
nr-768.min.js
20 ms
page.cfm
100 ms
about_btn_on.gif
39 ms
schools_btn_on.gif
40 ms
joinus_btn_on.gif
41 ms
conf_btn_on.gif
40 ms
news_btn_on.gif
38 ms
servcies_btn_on.gif
81 ms
members_btn_on.gif
80 ms
recruitement_btn_on.gif
79 ms
member_btn_on.gif
79 ms
ql_btn_on.gif
78 ms
sitemap_btn_on.gif
103 ms
17f1641df3
50 ms
200_Schools_Hong_Kong.jpg
173 ms
EduCare_Safeguarding.jpg
85 ms
COBIS_Consultancy_Service.jpg
73 ms
Mentoring_2.jpg
72 ms
NQTs.jpg
86 ms
General_COBIS_Schools.jpg
123 ms
Child_Protection.jpg
142 ms
Join_Us_Supporting_Members.jpg
143 ms
www.cobis.org.uk
333 ms
cobis.org.uk accessibility score
ARIA
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.
Impact
Issue
[aria-*] attributes do not match their roles
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[role] values are not valid
[aria-*] attributes do not have valid values
cobis.org.uk 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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
cobis.org.uk SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cobis.org.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Cobis.org.uk 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.
cobis.org.uk
Open Graph description is not detected on the main page of Cobis. 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: