Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

aquastrophics.com

Aquastrophics - Online Scuba lessons

Page Load Speed

856 ms in total

First Response

160 ms

Resources Loaded

461 ms

Page Rendered

235 ms

aquastrophics.com screenshot

About Website

Visit aquastrophics.com now to see the best up-to-date Aquastrophics content and also check out these interesting facts you probably never knew about aquastrophics.com

Scuba Certification Course, Nitrox Certification, Scuba Replacement Cards. Hard to find old NASDS and YMCA cards - We can help! Lots of Scuba Diving articles and information.

Visit aquastrophics.com

Key Findings

We analyzed Aquastrophics.com page load time and found that the first response time was 160 ms and then it took 696 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

aquastrophics.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

98/100

25%

SI (Speed Index)

Value0.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

Network Requests Diagram

aquastrophics.com

160 ms

1013.gif

171 ms

1017.gif

174 ms

1001.gif

175 ms

1007.gif

176 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that all of those requests were addressed to Aquastrophics.com and no external sources were called. The less responsive or slowest element that took the longest time to load (299 ms) belongs to the original domain Aquastrophics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 5.9 kB (12%)

Content Size

47.7 kB

After Optimization

41.8 kB

In fact, the total size of Aquastrophics.com main page is 47.7 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. Only 5% of websites need less resources to load. Images take 41.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 4.6 kB

  • Original 6.1 kB
  • After minification 5.3 kB
  • After compression 1.5 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 744 B, which is 12% 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 4.6 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 1.3 kB

  • Original 41.6 kB
  • After minification 40.3 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. Aquastrophics images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aquastrophics. According to our analytics all requests are already optimized.

Accessibility Review

aquastrophics.com accessibility score

67

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

aquastrophics.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

aquastrophics.com SEO score

85

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aquastrophics.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 Aquastrophics.com main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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