5.3 sec in total
175 ms
4.6 sec
491 ms
Click here to check amazing IST Diving System content. Otherwise, check out these important facts you probably never knew about istdivingsystem.com
IST aims to manufacture SAFE, RELIABLE, HIGH QUALITY diving products at an AFFORDABLE price for divers worldwide. We are a comprehensive scuba gear supplier.
Visit istdivingsystem.comWe analyzed Istdivingsystem.com page load time and found that the first response time was 175 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
istdivingsystem.com performance score
name
value
score
weighting
Value16.4 s
0/100
10%
Value20.8 s
0/100
25%
Value23.4 s
0/100
10%
Value190 ms
90/100
30%
Value0.068
96/100
15%
Value30.0 s
0/100
10%
175 ms
938 ms
139 ms
203 ms
206 ms
Our browser made a total of 133 requests to load all elements on the main page. We found that 98% of them (131 requests) were addressed to the original Istdivingsystem.com, 1% (1 request) were made to S3.amazonaws.com and 1% (1 request) were made to Js.hs-scripts.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Istdivingsystem.com.
Page size can be reduced by 1.6 MB (14%)
11.9 MB
10.2 MB
In fact, the total size of Istdivingsystem.com main page is 11.9 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. 55% of websites need less resources to load. Images take 10.2 MB which makes up the majority of the site volume.
Potential reduce by 105.4 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 20.2 kB, which is 16% 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 105.4 kB or 85% of the original size.
Potential reduce by 292.6 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. IST Diving System images are well optimized though.
Potential reduce by 781.7 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 781.7 kB or 74% of the original size.
Potential reduce by 438.2 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. Istdivingsystem.com needs all CSS files to be minified and compressed as it can save up to 438.2 kB or 84% of the original size.
Number of requests can be reduced by 80 (65%)
124
44
The browser has sent 124 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IST Diving System. 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 46 to 1 for CSS and as a result speed up the page load time.
istdivingsystem.com
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home.php
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common.js
139 ms
browser_identificator.js
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swfobject-min.js
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jquery.min.js
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bootstrap.min.js
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jquery-min.js
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css_loader.js
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jquery-migrate.production.js
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jquery-ui.custom.min.js
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jquery-ui.structure.min.css
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ajax.js
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jquery.blockUI.min.js
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product_notification_widget.js
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func.js
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check_quantity.js
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product_added.js
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jquery.nouislider.all.js
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swiper.min.js
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main-jquery.js
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istdivingsystem.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Some elements have a [tabindex] value greater than 0
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
istdivingsystem.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
istdivingsystem.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
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Istdivingsystem.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 Istdivingsystem.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.
istdivingsystem.com
Open Graph description is not detected on the main page of IST Diving System. 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: