7.6 sec in total
1.7 sec
5.3 sec
730 ms
Welcome to certifieddiamonds.org.uk homepage info - get ready to check Certifieddiamonds best content right away, or after learning these important things about certifieddiamonds.org.uk
Visit certifieddiamonds.org.ukWe analyzed Certifieddiamonds.org.uk page load time and found that the first response time was 1.7 sec and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
certifieddiamonds.org.uk performance score
name
value
score
weighting
Value2.6 s
64/100
10%
Value4.1 s
47/100
25%
Value3.9 s
82/100
10%
Value50 ms
100/100
30%
Value0.012
100/100
15%
Value3.1 s
95/100
10%
1659 ms
983 ms
1459 ms
1228 ms
1411 ms
Our browser made a total of 43 requests to load all elements on the main page. We found that all of those requests were addressed to Certifieddiamonds.org.uk and no external sources were called. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Certifieddiamonds.org.uk.
Page size can be reduced by 133.0 kB (29%)
465.7 kB
332.7 kB
In fact, the total size of Certifieddiamonds.org.uk main page is 465.7 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. 20% of websites need less resources to load. Images take 291.9 kB which makes up the majority of the site volume.
Potential reduce by 33.1 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 33.1 kB or 79% of the original size.
Potential reduce by 9.8 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. Certifieddiamonds images are well optimized though.
Potential reduce by 75.7 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 75.7 kB or 66% of the original size.
Potential reduce by 14.3 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. Certifieddiamonds.org.uk needs all CSS files to be minified and compressed as it can save up to 14.3 kB or 84% of the original size.
Number of requests can be reduced by 11 (26%)
42
31
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Certifieddiamonds. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
www.certifieddiamonds.org.uk
1659 ms
style.css
983 ms
jquery-1.3.1.min.js
1459 ms
jd.gallery.css
1228 ms
mootools.v1.11.js
1411 ms
jd.gallery.js
1331 ms
bg.jpg
190 ms
page.gif
116 ms
page_in.gif
110 ms
header.gif
106 ms
header_top.jpg
277 ms
header_bottom.gif
94 ms
header_menu.gif
180 ms
header_menu_hover.gif
195 ms
blank.gif
194 ms
main.gif
212 ms
sidebar_box.gif
266 ms
sidebar_title.gif
281 ms
sidebar_menu.gif
279 ms
sidebar_box_top.gif
280 ms
sidebar_box_bottom.gif
303 ms
photo1.jpg
551 ms
photo2.jpg
446 ms
photo3.jpg
606 ms
rss.jpg
370 ms
post.gif
369 ms
post_top.gif
395 ms
post_bottom.gif
459 ms
marquise-diamond.jpg
480 ms
princess-diamond.jpg
517 ms
round-diamond.jpg
533 ms
oval-diamond.jpg
554 ms
pear-diamond.jpg
569 ms
emerald-diamond.jpg
622 ms
radiant-diamond.jpg
620 ms
heart-diamond.jpg
643 ms
asscher-diamond.jpg
638 ms
gia-logo.jpg
656 ms
igi-logo.jpg
690 ms
idl-logo.jpg
707 ms
ags-logo.gif
718 ms
egl-logo.jpg
724 ms
hrd-logo.jpg
639 ms
certifieddiamonds.org.uk accessibility score
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
Image elements do not have [alt] attributes
Links do not have a discernible name
certifieddiamonds.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
certifieddiamonds.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
Image elements do not have [alt] attributes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Certifieddiamonds.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 Certifieddiamonds.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.
certifieddiamonds.org.uk
Open Graph description is not detected on the main page of Certifieddiamonds. 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: