2.8 sec in total
335 ms
2.3 sec
207 ms
Visit sja.org.uk now to see the best up-to-date Sja content for United Kingdom and also check out these interesting facts you probably never knew about sja.org.uk
As the nation's leading first aid charity, St John Ambulance offers training courses, advice, volunteering opportunities, event support, products and more.
Visit sja.org.ukWe analyzed Sja.org.uk page load time and found that the first response time was 335 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.
sja.org.uk performance score
name
value
score
weighting
Value4.5 s
14/100
10%
Value8.4 s
2/100
25%
Value6.7 s
36/100
10%
Value1,290 ms
18/100
30%
Value0
100/100
15%
Value8.3 s
40/100
10%
335 ms
343 ms
153 ms
11 ms
305 ms
Our browser made a total of 95 requests to load all elements on the main page. We found that 49% of them (47 requests) were addressed to the original Sja.org.uk, 7% (7 requests) were made to Apis.google.com and 3% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (632 ms) relates to the external source Static.xx.fbcdn.net.
Page size can be reduced by 613.5 kB (61%)
1.0 MB
393.9 kB
In fact, the total size of Sja.org.uk main page is 1.0 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. 55% of websites need less resources to load. CSS take 402.3 kB which makes up the majority of the site volume.
Potential reduce by 47.1 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 47.1 kB or 76% of the original size.
Potential reduce by 23.8 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. Obviously, Sja needs image optimization as it can save up to 23.8 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 207.3 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 207.3 kB or 62% of the original size.
Potential reduce by 335.4 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. Sja.org.uk needs all CSS files to be minified and compressed as it can save up to 335.4 kB or 83% of the original size.
Number of requests can be reduced by 36 (41%)
88
52
The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sja. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
sja.org.uk
335 ms
default.aspx
343 ms
WebResource.axd
153 ms
slick.css
11 ms
bootstrap.min.css
305 ms
SJAhome2014.css
235 ms
standard.css
172 ms
jquery.min.js
82 ms
SJA-min.js
166 ms
coreSJA.2-min.js
166 ms
VideoPlayer.js
178 ms
jquery-1.10.2.min.js
19 ms
bootstrap.min.js
11 ms
slick.min.js
11 ms
SJA-2014.js
77 ms
backtobasics.js
122 ms
ga.js
50 ms
what-we-do-1.jpg
140 ms
what-we-do-2.jpg
163 ms
what-we-do-3.jpg
162 ms
what-we-do-4.jpg
162 ms
seven-things-ive-learned-thumbnail.jpg
139 ms
student-volunteers-creamfields-thumbnail.jpg
138 ms
five-reasons-thumbnail.jpg
221 ms
big-first-aid-lesson-autumn-2015.jpg
220 ms
first_aid_and_health_and_safety_training_brochure.jpg
221 ms
patient-care-survey-thumbnail2.jpg
237 ms
SJA-device-60.jpg
249 ms
all.js
352 ms
widgets.js
123 ms
plusone.js
164 ms
SJA-device-60.jpg
227 ms
search-icon.png
285 ms
small-a-icon.png
285 ms
medium-a-icon.png
285 ms
large-a-icon.png
286 ms
Social-bar-bottom-2.png
303 ms
Facebook-green.png
303 ms
Twitter-green.png
391 ms
Linkedin-green.png
391 ms
YouTube-white.png
389 ms
lxzJN_8LTLo
163 ms
EWKwOnHigDs
163 ms
Calculator.gif
369 ms
Question-mark.gif
369 ms
white-arrow.png
369 ms
phone-icon.png
452 ms
Game-icon.png
449 ms
Movie-icon.png
450 ms
Facebook-white.png
451 ms
Twitter-white.png
449 ms
Linkedin-white.png
450 ms
tracker.js
385 ms
quant.js
81 ms
Gc1kR8ZQxQ4
90 ms
ajax-loader.gif
52 ms
inpage_linkid.js
29 ms
Green-arrow-menu-2.png
579 ms
undefined
579 ms
Green-arrow-1.png
577 ms
Green-arrow-2.png
578 ms
Green-arrow-3.png
578 ms
button.831500944bc3eb7ea5276ccdc3f71d2e.js
142 ms
pixel;r=183869424;a=p-39tUQCyLv-bFA;labels=_fp.event.Homepage;fpan=1;fpa=P0-1004203118-1456759132031;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1456759132030;tzo=-180;ref=;url=http%3A%2F%2Fwww.sja.org.uk%2Fsja%2Fdefault.aspx;ogl=description.First%20aid%20is%20a%20simple%20skill%20with%20an%20incredible%20impact%252E%20We%20want%20everyone%20to%20learn%2Cimage.http%3A%2F%2Fwww%252Esja%252Eorg%252Euk%2Fsja%2Fimages%2Flogos%2FSJA-facebook%252Ejpg%2Csite_name.www%252Esja%252Eorg%252Euk%2Ctitle.St%20John%20Ambulance%20-%20the%20nation%E2%80%99s%20leading%20first%20aid%20charity%2Ctype.website%2Curl.http%3A%2F%2Fwww%252Esja%252Eorg%252Euk%2Fsja%2Fdefault%252Easpx
13 ms
__utm.gif
17 ms
cb=gapi.loaded_0
38 ms
cb=gapi.loaded_1
71 ms
fastbutton
97 ms
collect
61 ms
www-embed-player-vflZsBgOl.css
142 ms
www-embed-player.js
233 ms
base.js
354 ms
share_button.php
199 ms
postmessageRelay
62 ms
cb=gapi.loaded_0
30 ms
cb=gapi.loaded_1
36 ms
W5F8_SL0XFawnjxHGsZjJA.ttf
164 ms
tweet_button.6a78875565a912489e9aef879c881358.en.html
59 ms
api.js
74 ms
core:rpc:shindig.random:shindig.sha1.js
166 ms
2536007149-postmessagerelay.js
138 ms
67 ms
xd_arbiter.php
306 ms
xd_arbiter.php
508 ms
vpc6VNjRPXV.js
567 ms
LVx-xkvaJ0b.png
632 ms
242 ms
jot
233 ms
6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js
91 ms
ad_status.js
90 ms
E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js
82 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
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RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
39 ms
print.css
103 ms
xd_arbiter.php
137 ms
sja.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
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[role]s are not contained by their required parent element
[role] values are not valid
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
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
sja.org.uk 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
Missing source maps for large first-party JavaScript
sja.org.uk SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
EN
EN
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sja.org.uk 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 Sja.org.uk main page’s claimed encoding is . 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.
sja.org.uk
Open Graph data is detected on the main page of Sja. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: