4.4 sec in total
239 ms
2 sec
2.2 sec
Visit cereb.org.uk now to see the best up-to-date Cereb content and also check out these interesting facts you probably never knew about cereb.org.uk
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Visit cereb.org.ukWe analyzed Cereb.org.uk page load time and found that the first response time was 239 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
cereb.org.uk performance score
name
value
score
weighting
Value3.1 s
46/100
10%
Value4.7 s
32/100
25%
Value3.3 s
91/100
10%
Value220 ms
87/100
30%
Value0.004
100/100
15%
Value5.6 s
70/100
10%
239 ms
356 ms
86 ms
228 ms
52 ms
Our browser made a total of 45 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Cereb.org.uk, 71% (32 requests) were made to Theenergyshop.com and 4% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (963 ms) relates to the external source Theenergyshop.com.
Page size can be reduced by 646.3 kB (22%)
2.9 MB
2.2 MB
In fact, the total size of Cereb.org.uk main page is 2.9 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. 65% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.
Potential reduce by 40.0 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. This page needs HTML code to be minified as it can gain 5.5 kB, which is 11% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 40.0 kB or 78% of the original size.
Potential reduce by 605.3 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, Cereb needs image optimization as it can save up to 605.3 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 50 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 979 B
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. Cereb.org.uk has all CSS files already compressed.
Number of requests can be reduced by 9 (23%)
40
31
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cereb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
cereb.org.uk
239 ms
www.theenergyshop.com
356 ms
site.min.css
86 ms
bootstrap.min.css
228 ms
css2
52 ms
adsbygoogle.js
143 ms
jquery-3.6.0.min.js
261 ms
bootstrap.min.js
491 ms
icons.min.css
346 ms
zrt_lookup.html
64 ms
gtm.js
85 ms
newTesLogo.svg
116 ms
homeEnergy.jpg
552 ms
home-black-ofgem.png
340 ms
home-trustpilot.png
124 ms
award-winning.png
101 ms
responsive-site.png
631 ms
home-business-graph.svg
412 ms
the-guardian.svg
339 ms
forbes.svg
431 ms
bbc.svg
429 ms
the-sunday-times.svg
478 ms
the-independant.svg
580 ms
energy-comparer.png
657 ms
easySwitchHome.svg
503 ms
easySwitchSearch.svg
563 ms
easySwitchSavings.svg
583 ms
calendar-money.png
707 ms
headset.png
642 ms
green-plug.png
738 ms
lightbulb-money.png
739 ms
supplier-esg.png
710 ms
home-business-gas.png
797 ms
home-compare-electricity.png
963 ms
home-who-supplies.png
869 ms
ofgem-white.png
796 ms
analytics.js
112 ms
js
112 ms
update.min.js
296 ms
KFOmCnqEu92Fr1Me5Q.ttf
245 ms
pxiEyp8kv8JHgFVrFJA.ttf
290 ms
icomoon.ttf
724 ms
collect
225 ms
collect
78 ms
ga-audiences
34 ms
cereb.org.uk 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
cereb.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
Page has valid source maps
cereb.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
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cereb.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 Cereb.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.
cereb.org.uk
Open Graph data is detected on the main page of Cereb. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: