Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

scuba-commander.com

Padi Dive Certifications | Scuba Commander Dive Travel and Training

Page Load Speed

2.2 sec in total

First Response

234 ms

Resources Loaded

1.5 sec

Page Rendered

401 ms

About Website

Click here to check amazing Scuba Commander content. Otherwise, check out these important facts you probably never knew about scuba-commander.com

Scuba Commander provides PADI Scuba Diving Training from Open Water Scuba Certifications through Divemaster. In addition, we offer spectacular Scuba Diving Trips. Padi Dive Certifications Scuba Trave...

Visit scuba-commander.com

Key Findings

We analyzed Scuba-commander.com page load time and found that the first response time was 234 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

scuba-commander.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value15.1 s

1/100

10%

TBT (Total Blocking Time)

Value20,370 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value30.0 s

0/100

10%

Network Requests Diagram

www.scuba-commander.com

234 ms

page_background_image.jpg

81 ms

embed

348 ms

cart-bg-1a.png

197 ms

bootstrap.min.css

71 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Scuba-commander.com, 30% (25 requests) were made to Siterepository.s3.amazonaws.com and 17% (14 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (570 ms) relates to the external source Siteimages.s3.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 951.0 kB (25%)

Content Size

3.8 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Scuba-commander.com main page is 3.8 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. 70% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 28.1 kB

  • Original 38.4 kB
  • After minification 37.2 kB
  • After compression 10.3 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. 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 28.1 kB or 73% of the original size.

Image Optimization

-6%

Potential reduce by 161.0 kB

  • Original 2.7 MB
  • After minification 2.5 MB

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. Scuba Commander images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 667.1 kB

  • Original 959.5 kB
  • After minification 920.7 kB
  • After compression 292.3 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 667.1 kB or 70% of the original size.

CSS Optimization

-84%

Potential reduce by 94.8 kB

  • Original 113.5 kB
  • After minification 113.4 kB
  • After compression 18.7 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. Scuba-commander.com needs all CSS files to be minified and compressed as it can save up to 94.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (32%)

Requests Now

76

After Optimization

52

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Scuba Commander. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

scuba-commander.com accessibility score

91

Accessibility Issues

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

High

Buttons do not have an accessible name

High

Links do not have a discernible name

Best Practices

scuba-commander.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

scuba-commander.com SEO score

98

Search Engine Optimization Advices

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Scuba-commander.com 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 Scuba-commander.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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Scuba Commander. 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: