1.6 sec in total
362 ms
1 sec
180 ms
Visit creative-chemistry.org.uk now to see the best up-to-date Creative Chemistry content for United Kingdom and also check out these interesting facts you probably never knew about creative-chemistry.org.uk
Textbook pages, worksheets, practical guides, molecular models, ideas for fun activities, revision quizzes for A Level and GCSE chemistry.
Visit creative-chemistry.org.ukWe analyzed Creative-chemistry.org.uk page load time and found that the first response time was 362 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.
creative-chemistry.org.uk performance score
name
value
score
weighting
Value3.0 s
48/100
10%
Value4.6 s
34/100
25%
Value6.0 s
47/100
10%
Value30 ms
100/100
30%
Value0.129
82/100
15%
Value5.1 s
75/100
10%
362 ms
192 ms
204 ms
204 ms
115 ms
Our browser made a total of 25 requests to load all elements on the main page. We found that 96% of them (24 requests) were addressed to the original Creative-chemistry.org.uk, 4% (1 request) were made to Www3.clustrmaps.com. The less responsive or slowest element that took the longest time to load (474 ms) relates to the external source Www3.clustrmaps.com.
Page size can be reduced by 65.9 kB (59%)
112.4 kB
46.5 kB
In fact, the total size of Creative-chemistry.org.uk main page is 112.4 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 48.6 kB which makes up the majority of the site volume.
Potential reduce by 27.5 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. This page needs HTML code to be minified as it can gain 4.3 kB, which is 13% 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 27.5 kB or 84% of the original size.
Potential reduce by 5.2 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, Creative Chemistry needs image optimization as it can save up to 5.2 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 31.6 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 31.6 kB or 65% of the original size.
Potential reduce by 1.7 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. Creative-chemistry.org.uk needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 83% of the original size.
Number of requests can be reduced by 11 (46%)
24
13
The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Creative Chemistry. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
creative-chemistry.org.uk
362 ms
cchem.css
192 ms
milonic_src.js
204 ms
menu_data.js
204 ms
updated.js
115 ms
index2.php
474 ms
cchemlogo.gif
99 ms
topright.jpg
113 ms
topleft.jpg
114 ms
dog0.gif
117 ms
getacro.gif
196 ms
sarah.gif
202 ms
newbyteachers.gif
204 ms
btmleft.jpg
214 ms
mmenudom.js
203 ms
home.gif
245 ms
bgtop.jpg
100 ms
arrowdn.gif
230 ms
activities.gif
238 ms
gcse.gif
238 ms
alevel.gif
242 ms
bucky.gif
241 ms
fun.gif
326 ms
poll.php
209 ms
bgbtm.jpg
104 ms
creative-chemistry.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
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
creative-chemistry.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
creative-chemistry.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
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 Creative-chemistry.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 Creative-chemistry.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.
creative-chemistry.org.uk
Open Graph description is not detected on the main page of Creative Chemistry. 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: