Tools & Wizards About Us
scubadive.co.za screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    38% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

scubadive.co.za

PADI Scuba Diving Courses Cape Town | Diving in Cape Town South Africa

Page Load Speed

3.8 sec in total

First Response

561 ms

Resources Loaded

2.8 sec

Page Rendered

405 ms

scubadive.co.za screenshot

About Website

Welcome to scubadive.co.za homepage info - get ready to check Scuba Dive best content right away, or after learning these important things about scubadive.co.za

We are a husband and wife team who teach PADI Scuba Diving Courses in Cape Town, South Africa. We are passionate about scuba diving, photography and people.

Visit scubadive.co.za

Key Findings

We analyzed Scubadive.co.za page load time and found that the first response time was 561 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

scubadive.co.za performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value5.4 s

57/100

10%

TBT (Total Blocking Time)

Value3,540 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.52

15/100

15%

TTI (Time to Interactive)

Value10.3 s

25/100

10%

Network Requests Diagram

scubadive.co.za

561 ms

bootstrap.min.css

306 ms

font-awesome.min.css

21 ms

main.css

244 ms

social.css

53 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 42% of them (26 requests) were addressed to the original Scubadive.co.za, 13% (8 requests) were made to Fonts.gstatic.com and 10% (6 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (656 ms) belongs to the original domain Scubadive.co.za.

Page Optimization Overview & Recommendations

Page size can be reduced by 81.6 kB (17%)

Content Size

488.0 kB

After Optimization

406.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Scubadive.co.za main page is 488.0 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. 70% of websites need less resources to load. Images take 239.8 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 25.2 kB

  • Original 33.8 kB
  • After minification 32.1 kB
  • After compression 8.6 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 25.2 kB or 75% of the original size.

Image Optimization

-2%

Potential reduce by 3.9 kB

  • Original 239.8 kB
  • After minification 236.0 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. Scuba Dive images are well optimized though.

JavaScript Optimization

-27%

Potential reduce by 51.9 kB

  • Original 192.5 kB
  • After minification 192.3 kB
  • After compression 140.6 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 51.9 kB or 27% of the original size.

CSS Optimization

-3%

Potential reduce by 576 B

  • Original 21.8 kB
  • After minification 21.8 kB
  • After compression 21.3 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. Scubadive.co.za has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (57%)

Requests Now

51

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Scuba Dive. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

scubadive.co.za

scubadive.co.za

561 ms

bootstrap.min.css

bootstrap.min.css

306 ms

font-awesome.min.css

font-awesome.min.css

21 ms

main.css

main.css

244 ms

social.css

social.css

53 ms

lightbox.css

lightbox.css

222 ms

modernizr-2.6.2-respond-1.1.0.min.js

modernizr-2.6.2-respond-1.1.0.min.js

243 ms

adsbygoogle.js

adsbygoogle.js

59 ms

email-decode.min.js

email-decode.min.js

18 ms

jquery.min.js

jquery.min.js

13 ms

bootstrap.min.js

bootstrap.min.js

269 ms

plugins.js

plugins.js

352 ms

main.js

main.js

656 ms

jquery.classymap.min.js

jquery.classymap.min.js

462 ms

lightbox-2.6.min.js

lightbox-2.6.min.js

462 ms

handlebars.js

handlebars.js

588 ms

waterfall.min.js

waterfall.min.js

531 ms

css

css

81 ms

close.png

close.png

261 ms

loading.gif

loading.gif

261 ms

prev.png

prev.png

262 ms

next.png

next.png

344 ms

GoDive_print_06.jpg

GoDive_print_06.jpg

504 ms

eLearning_print_02jpg.jpg

eLearning_print_02jpg.jpg

565 ms

eLearning_print_04.jpg

eLearning_print_04.jpg

598 ms

th_SueAustin2Wheelchair.jpeg

th_SueAustin2Wheelchair.jpeg

431 ms

th_dolphinrescue.jpg

th_dolphinrescue.jpg

430 ms

th_sharkbay.jpg

th_sharkbay.jpg

471 ms

th_softcoral.jpg

th_softcoral.jpg

619 ms

S6uyw4BMUTPHjx4wWA.woff

S6uyw4BMUTPHjx4wWA.woff

61 ms

S6u9w4BMUTPHh6UVSwiPHw.woff

S6u9w4BMUTPHh6UVSwiPHw.woff

67 ms

S6u9w4BMUTPHh50XSwiPHw.woff

S6u9w4BMUTPHh50XSwiPHw.woff

68 ms

zrt_lookup.html

zrt_lookup.html

130 ms

show_ads_impl.js

show_ads_impl.js

159 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

557 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

42 ms

ga.js

ga.js

19 ms

__utm.gif

__utm.gif

58 ms

cookie.js

cookie.js

84 ms

integrator.js

integrator.js

76 ms

ads

ads

603 ms

ads

ads

475 ms

downsize_200k_v1

downsize_200k_v1

164 ms

load_preloaded_resource.js

load_preloaded_resource.js

154 ms

abg_lite.js

abg_lite.js

152 ms

window_focus.js

window_focus.js

161 ms

qs_click_protection.js

qs_click_protection.js

167 ms

rx_lidar.js

rx_lidar.js

183 ms

fac60d4cdc0b8be56d9f8d6f9ac54a3d.js

fac60d4cdc0b8be56d9f8d6f9ac54a3d.js

166 ms

icon.png

icon.png

106 ms

css

css

44 ms

css

css

79 ms

activeview

activeview

49 ms

75n5MIkdKjMQGlOCWCYwhumMUPtaURPkn9Lrop-Fp5U.js

75n5MIkdKjMQGlOCWCYwhumMUPtaURPkn9Lrop-Fp5U.js

48 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy8.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy8.woff

384 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy8.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy8.woff

400 ms

sodar

sodar

213 ms

activeview

activeview

357 ms

KFOlCnqEu92Fr1MmWUlfBBc-.woff

KFOlCnqEu92Fr1MmWUlfBBc-.woff

373 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

372 ms

KFOlCnqEu92Fr1MmSU5fBBc-.woff

KFOlCnqEu92Fr1MmSU5fBBc-.woff

371 ms

sodar2.js

sodar2.js

42 ms

Accessibility Review

scubadive.co.za accessibility score

73

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

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

scubadive.co.za best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

scubadive.co.za SEO score

89

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

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 Scubadive.co.za 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 Scubadive.co.za 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

scubadive.co.za

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