Tools & Wizards About Us
divebelowh2oscuba.com screenshot

Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

divebelowh2oscuba.com

Dive Below H2O - SCUBA Diving at it's best - Nashville, Tennessee

Page Load Speed

821 ms in total

First Response

155 ms

Resources Loaded

387 ms

Page Rendered

279 ms

divebelowh2oscuba.com screenshot

About Website

Welcome to divebelowh2oscuba.com homepage info - get ready to check Dive Below H2O SCUBA best content right away, or after learning these important things about divebelowh2oscuba.com

Dive Below H2O Scuba is the premiere dive center for Middle Tennessee and the Nashville Area. Our dive professionals provide top quality training every month and world class dive trips. Call today to ...

Visit divebelowh2oscuba.com

Key Findings

We analyzed Divebelowh2oscuba.com page load time and found that the first response time was 155 ms and then it took 666 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

divebelowh2oscuba.com performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

84/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

divebelowh2oscuba.com

155 ms

dbh2o_global.css

36 ms

2025Fiji_Header.png

169 ms

logo5_w170.png

72 ms

2024_Bonaire_Header.jpg

74 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that all of those requests were addressed to Divebelowh2oscuba.com and no external sources were called. The less responsive or slowest element that took the longest time to load (230 ms) belongs to the original domain Divebelowh2oscuba.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 143.3 kB (25%)

Content Size

570.8 kB

After Optimization

427.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Divebelowh2oscuba.com main page is 570.8 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. 30% of websites need less resources to load. Images take 506.6 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 33.3 kB

  • Original 39.1 kB
  • After minification 15.6 kB
  • After compression 5.8 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 23.4 kB, which is 60% 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 33.3 kB or 85% of the original size.

Image Optimization

-18%

Potential reduce by 89.6 kB

  • Original 506.6 kB
  • After minification 417.0 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, Dive Below H2O SCUBA needs image optimization as it can save up to 89.6 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 404 B

  • Original 586 B
  • After minification 568 B
  • After compression 182 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 404 B or 69% of the original size.

CSS Optimization

-82%

Potential reduce by 20.1 kB

  • Original 24.5 kB
  • After minification 19.7 kB
  • After compression 4.5 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. Divebelowh2oscuba.com needs all CSS files to be minified and compressed as it can save up to 20.1 kB or 82% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

28

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dive Below H2O SCUBA. According to our analytics all requests are already optimized.

Network Requests Diagram

divebelowh2oscuba.com

divebelowh2oscuba.com

155 ms

dbh2o_global.css

dbh2o_global.css

36 ms

2025Fiji_Header.png

2025Fiji_Header.png

169 ms

logo5_w170.png

logo5_w170.png

72 ms

2024_Bonaire_Header.jpg

2024_Bonaire_Header.jpg

74 ms

Thermaxx_Henderson.jpg

Thermaxx_Henderson.jpg

48 ms

S2S_Products_diff.jpg

S2S_Products_diff.jpg

99 ms

EarShield_cropped.jpg

EarShield_cropped.jpg

59 ms

Ocean_Steel_Pkg_195x195.jpg

Ocean_Steel_Pkg_195x195.jpg

65 ms

EON_Core_Black_with_POD_Pkg_174X196.jpg

EON_Core_Black_with_POD_Pkg_174X196.jpg

89 ms

Oceanic_Geo_Air_200x200.jpg

Oceanic_Geo_Air_200x200.jpg

156 ms

Kraken_NR1500_kit_w181.jpg

Kraken_NR1500_kit_w181.jpg

89 ms

Kraken_NR1500_w160.jpg

Kraken_NR1500_w160.jpg

102 ms

divebelowh2o.js

divebelowh2o.js

117 ms

OceanReef-Aria_breath_w175.png

OceanReef-Aria_breath_w175.png

154 ms

OceanReef-Aria-cameramount_w175.png

OceanReef-Aria-cameramount_w175.png

155 ms

Atomic-T33-1st-2nd-stage_w250.jpg

Atomic-T33-1st-2nd-stage_w250.jpg

155 ms

instagram_w36.png

instagram_w36.png

166 ms

twitter_w36.png

twitter_w36.png

171 ms

facebook_w36.png

facebook_w36.png

183 ms

BecomeADiver.png

BecomeADiver.png

174 ms

dan-membership-referral-rewards-1-154x128px.jpg

dan-membership-referral-rewards-1-154x128px.jpg

196 ms

dan-travel-insurance-rewards-154x128px.jpg

dan-travel-insurance-rewards-154x128px.jpg

230 ms

frame_5reasons_160.jpg

frame_5reasons_160.jpg

201 ms

ha_background.jpg

ha_background.jpg

187 ms

underwater16_645.jpg

underwater16_645.jpg

171 ms

shop6.jpg

shop6.jpg

184 ms

dive-shop-2534.jpg

dive-shop-2534.jpg

195 ms

sweep_bubbles.jpg

sweep_bubbles.jpg

197 ms

Accessibility Review

divebelowh2oscuba.com accessibility score

79

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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

Best Practices

divebelowh2oscuba.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

divebelowh2oscuba.com SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Divebelowh2oscuba.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 Divebelowh2oscuba.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

divebelowh2oscuba.com

Open Graph description is not detected on the main page of Dive Below H2O SCUBA. 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: