3.5 sec in total
801 ms
2.5 sec
177 ms
Click here to check amazing St John S Cathedral School content. Otherwise, check out these important facts you probably never knew about stjohnscathedralschool.org.uk
St John's Cathedral Catholic Primary School
Visit stjohnscathedralschool.org.ukWe analyzed Stjohnscathedralschool.org.uk page load time and found that the first response time was 801 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
stjohnscathedralschool.org.uk performance score
name
value
score
weighting
Value5.1 s
9/100
10%
Value10.0 s
0/100
25%
Value7.4 s
28/100
10%
Value510 ms
57/100
30%
Value0.162
72/100
15%
Value10.0 s
26/100
10%
801 ms
466 ms
397 ms
304 ms
341 ms
Our browser made a total of 22 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Stjohnscathedralschool.org.uk, 50% (11 requests) were made to Primarysite-prod.s3.amazonaws.com and 41% (9 requests) were made to Primarysite-prod-sorted.s3.amazonaws.com. The less responsive or slowest element that took the longest time to load (801 ms) belongs to the original domain Stjohnscathedralschool.org.uk.
Page size can be reduced by 616.0 kB (65%)
951.8 kB
335.9 kB
In fact, the total size of Stjohnscathedralschool.org.uk main page is 951.8 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. 15% of websites need less resources to load. Javascripts take 619.3 kB which makes up the majority of the site volume.
Potential reduce by 51.5 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 51.5 kB or 73% of the original size.
Potential reduce by 49.2 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. Obviously, St John S Cathedral School needs image optimization as it can save up to 49.2 kB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 425.5 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 425.5 kB or 69% of the original size.
Potential reduce by 89.8 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. Stjohnscathedralschool.org.uk needs all CSS files to be minified and compressed as it can save up to 89.8 kB or 79% of the original size.
Number of requests can be reduced by 17 (81%)
21
4
The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of St John S Cathedral School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
www.stjohnscathedralschool.org.uk
801 ms
presenter_prologue_css.7b7812f9.css
466 ms
all-site-icon-choices.a5b47c15.css
397 ms
right-nav.css
304 ms
style.css
341 ms
homepage.css
344 ms
presenter_prologue_js.0f5cf2e3.js
531 ms
responsive_slideshow.23d621a3.js
295 ms
raven_js.cd61b40a.js
364 ms
cookies_js.aedb4301.js
320 ms
common_scripts.28a8c0f3.js
690 ms
app.js
335 ms
contrastMode-min.js
326 ms
nav.js
330 ms
nav-column-min.js
326 ms
custom.js
383 ms
custom-home.js
394 ms
school-logo.png
358 ms
icons.svg
99 ms
picturefill.a26ebc92.js
80 ms
lazy_load.1bfa9561.js
81 ms
piwik.js
197 ms
stjohnscathedralschool.org.uk 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
Image elements do not have [alt] attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
stjohnscathedralschool.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
stjohnscathedralschool.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
Image elements do not have [alt] attributes
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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stjohnscathedralschool.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 Stjohnscathedralschool.org.uk 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.
stjohnscathedralschool.org.uk
Open Graph description is not detected on the main page of St John S Cathedral School. 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: