2.9 sec in total
301 ms
2.5 sec
68 ms
Welcome to divecdi.com homepage info - get ready to check Divecdi best content right away, or after learning these important things about divecdi.com
Commercial Divers International: Arizona's premiere commercial diving school, founded and ran by today's diving industry experts.
Visit divecdi.comWe analyzed Divecdi.com page load time and found that the first response time was 301 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
divecdi.com performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value7.7 s
3/100
25%
Value7.3 s
28/100
10%
Value1,540 ms
13/100
30%
Value0.107
88/100
15%
Value13.6 s
11/100
10%
301 ms
326 ms
549 ms
387 ms
497 ms
Our browser made a total of 36 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original Divecdi.com, 53% (19 requests) were made to Static.wixstatic.com and 33% (12 requests) were made to Static.parastorage.com. The less responsive or slowest element that took the longest time to load (936 ms) relates to the external source Static.wixstatic.com.
Page size can be reduced by 420.8 kB (57%)
739.2 kB
318.4 kB
In fact, the total size of Divecdi.com main page is 739.2 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. 40% of websites need less resources to load. HTML takes 452.0 kB which makes up the majority of the site volume.
Potential reduce by 348.1 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 348.1 kB or 77% of the original size.
Potential reduce by 72.7 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, Divecdi needs image optimization as it can save up to 72.7 kB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 48 B
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. This website has mostly compressed JavaScripts.
Number of requests can be reduced by 9 (29%)
31
22
The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Divecdi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.
divecdi.com
301 ms
divecdi.com
326 ms
www.commercialdiversinternational.edu
549 ms
minified.js
387 ms
focus-within-polyfill.js
497 ms
polyfill.min.js
541 ms
bootstrap-features.24d4529b.bundle.min.js
217 ms
main.24eb524d.bundle.min.js
184 ms
lodash.min.js
182 ms
react.production.min.js
183 ms
siteTags.bundle.min.js
171 ms
wix-perf-measure.bundle.min.js
181 ms
react-dom.production.min.js
181 ms
circle-cropped.png
380 ms
7c9538_fdf5858e87dd43318d5fb11b257682a2f000.jpg
533 ms
33924788126_0795751cdb_k.jpg
430 ms
7c9538_1ee69b13e195471b81148b0e6e6e490a~mv2_d_3006_5344_s_4_2.jpg
496 ms
coe-logo.png
514 ms
VSC.png
482 ms
osha.png
615 ms
ADCILOGO.png
670 ms
divelab.png
709 ms
kirby-morgan-dive-systems.png
673 ms
azppse-arizona-seal.png
726 ms
canadianflag.png
703 ms
us-department-of-labor.png
765 ms
asnt-american-society-of-non-destructive.png
836 ms
american-welding-society.png
833 ms
dan-divers-alert-network2.png
840 ms
MFS18_Silver_100x100.png
936 ms
file.woff
521 ms
file.woff
568 ms
deprecation-en.v5.html
4 ms
bolt-performance
19 ms
deprecation-style.v5.css
5 ms
right-arrow.svg
2 ms
divecdi.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
button, link, and menuitem elements do not have accessible names.
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
divecdi.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
divecdi.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
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 Divecdi.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 Divecdi.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.
divecdi.com
Open Graph data is detected on the main page of Divecdi. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: