8.3 sec in total
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Welcome to costerdiamonds.com homepage info - get ready to check Coster Diamonds best content for India right away, or after learning these important things about costerdiamonds.com
The world’s oldest and most trusted diamond factory with a rich and compelling history. Royal Coster Diamonds has been around since 1840. Browse our catalogue for fine jewelry, diamonds and watches fr...
Visit costerdiamonds.comWe analyzed Costerdiamonds.com page load time and found that the first response time was 2.3 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.
costerdiamonds.com performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value10.7 s
0/100
25%
Value18.5 s
0/100
10%
Value3,650 ms
1/100
30%
Value0.029
100/100
15%
Value43.1 s
0/100
10%
2296 ms
89 ms
100 ms
175 ms
55 ms
Our browser made a total of 64 requests to load all elements on the main page. We found that 77% of them (49 requests) were addressed to the original Costerdiamonds.com, 5% (3 requests) were made to Fonts.googleapis.com and 3% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Costerdiamonds.com.
Page size can be reduced by 1.9 MB (39%)
4.8 MB
3.0 MB
In fact, the total size of Costerdiamonds.com main page is 4.8 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 100.0 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 37.1 kB, which is 32% 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 100.0 kB or 87% of the original size.
Potential reduce by 101.3 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. Coster Diamonds images are well optimized though.
Potential reduce by 352.4 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 352.4 kB or 69% of the original size.
Potential reduce by 1.3 MB
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. Costerdiamonds.com needs all CSS files to be minified and compressed as it can save up to 1.3 MB or 88% of the original size.
Number of requests can be reduced by 37 (66%)
56
19
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coster Diamonds. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.
costerdiamonds.com
2296 ms
css
89 ms
icon
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font-awesome.min.css
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jquery.min.js.pagespeed.jm.YSzgc-BSX9.js
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css
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A.font-awesome.min.css.pagespeed.cf.HpcIsdYD5q.css
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woocommerce,_assets,_js,_frontend,_cart-fragments.min.js+yith-woocommerce-social-login,_assets,_js,_frontend.min.js+wp-spamshield,_js,_jscripts-ftr2-min.js.pagespeed.jc.gLSk8mHea0.js
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bootstrap.min.js.pagespeed.jm.bgwmJxDmKa.js
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js,_masonry.pkgd.min.js+js,_wow.min.js+magnify-master,_jquery.magnify.js+js,_functions.js.pagespeed.jc.u98z22gjOZ.js
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KievitPro-Regular.css
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wp-emoji-release.min.js
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gtm.js
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crown-sep-gold.png
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coco.png
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analytics.js
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conversion_async.js
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woocommerce-smallscreen.css
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costerdiamonds.com 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
Links do not have a discernible name
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
costerdiamonds.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
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
costerdiamonds.com 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
robots.txt is not valid
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 Costerdiamonds.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 Costerdiamonds.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.
costerdiamonds.com
Open Graph data is detected on the main page of Coster Diamonds. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: