Tools & Wizards About Us
oahuscubadiving.com screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

oahuscubadiving.com

Island Divers Hawaii | Oahu's Friendliest Dive Center

Page Load Speed

3 sec in total

First Response

71 ms

Resources Loaded

2.4 sec

Page Rendered

535 ms

oahuscubadiving.com screenshot

About Website

Welcome to oahuscubadiving.com homepage info - get ready to check Oahu Scubadiving best content for United States right away, or after learning these important things about oahuscubadiving.com

Island Divers offers three daily boat charters to fit your comfort level, advanced to beginner.  Scuba certifications courses are available on your schedule.

Visit oahuscubadiving.com

Key Findings

We analyzed Oahuscubadiving.com page load time and found that the first response time was 71 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

oahuscubadiving.com performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value8.4 s

19/100

10%

TBT (Total Blocking Time)

Value1,310 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.267

46/100

15%

TTI (Time to Interactive)

Value19.3 s

2/100

10%

Network Requests Diagram

www.oahuscubadiving.com

71 ms

css

144 ms

htczi.css

41 ms

style.min.css

107 ms

mediaelementplayer-legacy.min.css

106 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 19% of them (15 requests) were addressed to the original Oahuscubadiving.com, 45% (36 requests) were made to I0.wp.com and 13% (10 requests) were made to C0.wp.com. The less responsive or slowest element that took the longest time to load (422 ms) relates to the external source Googletagmanager.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 169.3 kB (8%)

Content Size

2.0 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Oahuscubadiving.com main page is 2.0 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. Only a small number of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 121.7 kB

  • Original 144.2 kB
  • After minification 139.8 kB
  • After compression 22.5 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. 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 121.7 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 1.0 kB

  • Original 707.6 kB
  • After minification 706.5 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. Oahu Scubadiving images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 42.2 kB

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 980.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-3%

Potential reduce by 4.4 kB

  • Original 133.2 kB
  • After minification 133.2 kB
  • After compression 128.8 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. Oahuscubadiving.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 36 (46%)

Requests Now

78

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oahu Scubadiving. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.oahuscubadiving.com

www.oahuscubadiving.com

71 ms

css

css

144 ms

htczi.css

htczi.css

41 ms

style.min.css

style.min.css

107 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

106 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

101 ms

htczi.css

htczi.css

80 ms

htczi.css

htczi.css

79 ms

font-awesome.min.css

font-awesome.min.css

143 ms

htczi.css

htczi.css

90 ms

152 ms

htszp.css

htszp.css

109 ms

jquery.min.js

jquery.min.js

139 ms

jquery-migrate.min.js

jquery-migrate.min.js

104 ms

htczi.js

htczi.js

88 ms

js

js

239 ms

htczi.js

htczi.js

138 ms

js

js

422 ms

htgn5.css

htgn5.css

211 ms

hooks.min.js

hooks.min.js

136 ms

i18n.min.js

i18n.min.js

138 ms

htczi.js

htczi.js

211 ms

htgn5.js

htgn5.js

211 ms

mediaelement-and-player.min.js

mediaelement-and-player.min.js

143 ms

mediaelement-migrate.min.js

mediaelement-migrate.min.js

141 ms

wp-mediaelement.min.js

wp-mediaelement.min.js

141 ms

e-202434.js

e-202434.js

143 ms

6eigl.js

6eigl.js

210 ms

htgn5.js

htgn5.js

234 ms

plusone.js

plusone.js

278 ms

P6300056-scaled.jpg

P6300056-scaled.jpg

281 ms

ec60c12cf6658737a1f87d0828250e78

ec60c12cf6658737a1f87d0828250e78

268 ms

logo111.png

logo111.png

229 ms

horse-eye-jacks-scaled.jpg

horse-eye-jacks-scaled.jpg

271 ms

Diver-coming-through-a-swim-through-scaled.jpg

Diver-coming-through-a-swim-through-scaled.jpg

311 ms

lone-scuba.png

lone-scuba.png

271 ms

SSI_LOGO_Stack_Black.png

SSI_LOGO_Stack_Black.png

271 ms

turtle.png

turtle.png

271 ms

nitrox.png

nitrox.png

270 ms

wreck-diving.png

wreck-diving.png

308 ms

starfish.png

starfish.png

310 ms

hvcbmemb.gif

hvcbmemb.gif

308 ms

matt-zimmerman.png

matt-zimmerman.png

291 ms

sheila1.png

sheila1.png

290 ms

hunter-face.jpg

hunter-face.jpg

294 ms

larry-face1.png

larry-face1.png

294 ms

mark.jpg

mark.jpg

295 ms

ME.jpg

ME.jpg

293 ms

ray-official.jpg

ray-official.jpg

295 ms

daneil-official.jpg

daneil-official.jpg

294 ms

annaas.jpg

annaas.jpg

300 ms

anna.png

anna.png

297 ms

mason.jpg

mason.jpg

296 ms

carrie.jpg

carrie.jpg

299 ms

ed.jpg

ed.jpg

300 ms

dylan-official.jpg

dylan-official.jpg

296 ms

mira.jpg

mira.jpg

300 ms

matto.png

matto.png

305 ms

djtroy.jpg

djtroy.jpg

301 ms

tinytim.jpg

tinytim.jpg

301 ms

ritchiel.png

ritchiel.png

302 ms

aby-headshot.jpg

aby-headshot.jpg

301 ms

jeff.jpg

jeff.jpg

303 ms

nick-headshot.jpg

nick-headshot.jpg

305 ms

melisa-head-shot.jpg

melisa-head-shot.jpg

305 ms

emmaaa.jpg

emmaaa.jpg

306 ms

owen-headshot.jpg

owen-headshot.jpg

306 ms

font

font

108 ms

entypo-fontello.woff

entypo-fontello.woff

100 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

17 ms

integration-kit-bundle.js

integration-kit-bundle.js

144 ms

336 ms

Shop.jpg

Shop.jpg

20 ms

goal.min.js

goal.min.js

84 ms

style-cart.a02642c318da0638f31a.css

style-cart.a02642c318da0638f31a.css

241 ms

fonts.eacdf4961de415ddab83.css

fonts.eacdf4961de415ddab83.css

237 ms

output.29011c62dc48.js

output.29011c62dc48.js

156 ms

js

js

40 ms

djangojs.js

djangojs.js

151 ms

output.0f6d048a8df7.js

output.0f6d048a8df7.js

151 ms

Accessibility Review

oahuscubadiving.com accessibility score

75

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

oahuscubadiving.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

oahuscubadiving.com SEO score

83

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

Links do not have descriptive text

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oahuscubadiving.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 Oahuscubadiving.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

oahuscubadiving.com

Open Graph data is detected on the main page of Oahu Scubadiving. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: