3.3 sec in total
273 ms
2.5 sec
503 ms
Visit assembly21.com now to see the best up-to-date Assembly 21 content for United Kingdom and also check out these interesting facts you probably never knew about assembly21.com
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Visit assembly21.comWe analyzed Assembly21.com page load time and found that the first response time was 273 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
assembly21.com performance score
name
value
score
weighting
Value3.5 s
34/100
10%
Value11.5 s
0/100
25%
Value5.2 s
60/100
10%
Value710 ms
42/100
30%
Value0.011
100/100
15%
Value5.7 s
68/100
10%
273 ms
647 ms
87 ms
32 ms
253 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 76% of them (26 requests) were addressed to the original Assembly21.com, 12% (4 requests) were made to Use.typekit.net and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Assembly21.com.
Page size can be reduced by 521.6 kB (14%)
3.7 MB
3.2 MB
In fact, the total size of Assembly21.com main page is 3.7 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. 45% of websites need less resources to load. Images take 3.5 MB which makes up the majority of the site volume.
Potential reduce by 15.0 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 15.0 kB or 75% of the original size.
Potential reduce by 397.5 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, Assembly 21 needs image optimization as it can save up to 397.5 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 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 109.1 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. Assembly21.com needs all CSS files to be minified and compressed as it can save up to 109.1 kB or 90% of the original size.
We found no issues to fix!
29
29
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Assembly 21. According to our analytics all requests are already optimized.
assembly21.com
273 ms
assembly21.com
647 ms
5544487f7b97.css
87 ms
jquery-1.11.0.min.js
32 ms
style-december-2015.css
253 ms
itx4xkh.js
110 ms
assembly21-logo-web-sm.png
138 ms
dices-74ec4b86.png
565 ms
card-915ea031.png
489 ms
maths-in-flower-8c810c39.jpg
404 ms
perception-pitagoras-6b5e04f5.png
806 ms
workshop-writing-better-content-5b38b4f1.jpg
405 ms
ux-design-ipad-385d5be2.jpg
408 ms
library-pa%20copy-e34fb38e.jpg
490 ms
excursion-3d5c9d03.jpg
489 ms
class-64a3de5d.jpg
496 ms
jigsaw-1dddec69.jpg
574 ms
archetypes-caa221d8.png
972 ms
museum-0048c251.jpg
607 ms
world-0fc04ce5.jpg
579 ms
contao-cms-laptop.png
960 ms
icons-london.png
991 ms
design-materials.png
1329 ms
technological-development.png
837 ms
customer-journey.jpg
725 ms
museum.jpg
810 ms
art-design-code.jpg
1047 ms
class.jpg
1149 ms
analytics.js
151 ms
d
54 ms
d
242 ms
d
181 ms
collect
13 ms
p.gif
60 ms
assembly21.com 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.
assembly21.com 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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
assembly21.com SEO score
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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Assembly21.com 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 Assembly21.com 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.
assembly21.com
Open Graph description is not detected on the main page of Assembly 21. 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: