6.4 sec in total
764 ms
5.3 sec
319 ms
Click here to check amazing Diamond Training School content for Russia. Otherwise, check out these important facts you probably never knew about diamondtrainingschool.co.za
Harry Oppenheimer Diamond Training School is a Non profit company that specialises in providing specialised training for the diamond manufacturing and rough diamond buying industry
Visit diamondtrainingschool.co.zaWe analyzed Diamondtrainingschool.co.za page load time and found that the first response time was 764 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
diamondtrainingschool.co.za performance score
name
value
score
weighting
Value6.7 s
2/100
10%
Value16.7 s
0/100
25%
Value19.9 s
0/100
10%
Value1,050 ms
25/100
30%
Value0.637
9/100
15%
Value15.8 s
6/100
10%
764 ms
1162 ms
97 ms
88 ms
305 ms
Our browser made a total of 69 requests to load all elements on the main page. We found that 80% of them (55 requests) were addressed to the original Diamondtrainingschool.co.za, 6% (4 requests) were made to Googletagmanager.com and 6% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Diamondtrainingschool.co.za.
Page size can be reduced by 155.4 kB (17%)
926.5 kB
771.1 kB
In fact, the total size of Diamondtrainingschool.co.za main page is 926.5 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. 45% of websites need less resources to load. Images take 533.9 kB which makes up the majority of the site volume.
Potential reduce by 34.3 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 5.8 kB, which is 14% 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 34.3 kB or 80% of the original size.
Potential reduce by 27.0 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. Diamond Training School images are well optimized though.
Potential reduce by 63.4 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 63.4 kB or 24% of the original size.
Potential reduce by 30.7 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. Diamondtrainingschool.co.za needs all CSS files to be minified and compressed as it can save up to 30.7 kB or 37% of the original size.
Number of requests can be reduced by 40 (66%)
61
21
The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Diamond Training School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.
diamondtrainingschool.co.za
764 ms
diamondtrainingschool.co.za
1162 ms
gtm.js
97 ms
css
88 ms
bootstrap.min.css
305 ms
font-awesome.css
610 ms
owl.carousel.css
917 ms
owl.theme.css
971 ms
owl.transitions.css
994 ms
magnific-popup.css
997 ms
animate.css
1014 ms
superslides.css
1016 ms
settings.css
1196 ms
essentials.css
1213 ms
layout.css
1249 ms
layout-responsive.css
1244 ms
blue.css
1260 ms
modernizr.min.js
1281 ms
api.js
79 ms
js
134 ms
js
167 ms
jquery-2.0.3.min.js
1471 ms
jquery.easing.1.3.js
1456 ms
jquery.cookie.js
1504 ms
jquery.appear.js
1511 ms
jquery.isotope.js
1504 ms
masonry.js
1550 ms
jquery.validate.min.js
55 ms
jquery.validate.unobtrusive.min.js
54 ms
bootstrap.min.js
1714 ms
jquery.magnific-popup.min.js
1726 ms
owl.carousel.min.js
1751 ms
jquery.stellar.min.js
1755 ms
jquery.knob.js
1758 ms
jquery.backstretch.min.js
1799 ms
jquery.superslides.min.js
1955 ms
styleswitcher.js
1982 ms
mediaelement-and-player.min.js
2007 ms
jquery.themepunch.tools.min.js
2251 ms
jquery.themepunch.revolution.min.js
2014 ms
slider_revolution.js
2059 ms
scripts.js
2220 ms
logo.png
1048 ms
header_shadow.png
1047 ms
back1.jpg
1048 ms
diamond-crystal3.gif
1551 ms
diamond-642131_960_720.jpg
1421 ms
15-discount-banner.jpg
1734 ms
diamondtrainingschool.co.za
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polisheddiamondsmall.jpg
1513 ms
parallax.png
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gia.jpg
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jcsa_logo.jpg
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mqa-logo.jpg
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sabs-logo.jpg
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footer_sprite.png
1863 ms
logo.png
1925 ms
memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQUwaEQXjM.woff
15 ms
memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQUwaEQXjM.woff
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memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQUwaEQXjM.woff
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memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVQUwaEQXjM.woff
35 ms
fontawesome-webfont.woff
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analytics.js
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loader.gif
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shadow1.png
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bullet.png
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revicons.woff
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diamondtrainingschool.co.za 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
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
diamondtrainingschool.co.za 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
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
diamondtrainingschool.co.za SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Diamondtrainingschool.co.za 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 Diamondtrainingschool.co.za 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.
diamondtrainingschool.co.za
Open Graph description is not detected on the main page of Diamond Training School. 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: