Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

scubawatch.org

SCUBAWATCH.ORG HOME

Page Load Speed

568 ms in total

First Response

183 ms

Resources Loaded

385 ms

Page Rendered

0 ms

scubawatch.org screenshot

About Website

Click here to check amazing SCUBAWATCH content. Otherwise, check out these important facts you probably never knew about scubawatch.org

Visit scubawatch.org

Key Findings

We analyzed Scubawatch.org page load time and found that the first response time was 183 ms and then it took 385 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

scubawatch.org performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

85/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value160 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

scubawatch.org

183 ms

counter.js

15 ms

whv2_001.js

11 ms

468_302-1024x833.jpg

151 ms

824_1042-1024x1320.jpg

142 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 55% of them (11 requests) were addressed to the original Scubawatch.org, 15% (3 requests) were made to S17.sitemeter.com and 5% (1 request) were made to L.yimg.com. The less responsive or slowest element that took the longest time to load (183 ms) belongs to the original domain Scubawatch.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 34.9 kB (6%)

Content Size

545.8 kB

After Optimization

510.9 kB

In fact, the total size of Scubawatch.org main page is 545.8 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. 20% of websites need less resources to load. Images take 523.5 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 8.6 kB

  • Original 12.3 kB
  • After minification 10.4 kB
  • After compression 3.7 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 2.0 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 8.6 kB or 70% of the original size.

Image Optimization

-4%

Potential reduce by 19.3 kB

  • Original 523.5 kB
  • After minification 504.3 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. SCUBAWATCH images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 7.0 kB

  • Original 9.9 kB
  • After minification 8.0 kB
  • After compression 2.9 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 7.0 kB or 70% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

17

After Optimization

17

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SCUBAWATCH. According to our analytics all requests are already optimized.

Accessibility Review

scubawatch.org accessibility score

76

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

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

Links do not have a discernible name

Best Practices

scubawatch.org best practices score

58

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

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

scubawatch.org SEO score

69

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Scubawatch.org 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 Scubawatch.org main page’s claimed encoding is . 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 SCUBAWATCH. 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: