Tools & Wizards About Us
cardiffscuba.co.uk screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

cardiffscuba.co.uk

Scuba Diving Lessons Cardiff | Cardiff Scuba – South Wales

Page Load Speed

1.4 sec in total

First Response

95 ms

Resources Loaded

1.2 sec

Page Rendered

90 ms

cardiffscuba.co.uk screenshot

About Website

Click here to check amazing Cardiff Scuba content. Otherwise, check out these important facts you probably never knew about cardiffscuba.co.uk

Learn scuba diving lessons in Cardiff with Cardiff Scuba, one of South Wales' most respected Dive Schools. Join us today!

Visit cardiffscuba.co.uk

Key Findings

We analyzed Cardiffscuba.co.uk page load time and found that the first response time was 95 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

cardiffscuba.co.uk performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value4.3 s

75/100

10%

TBT (Total Blocking Time)

Value940 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value10.3 s

25/100

10%

Network Requests Diagram

www.cardiffscuba.co.uk

95 ms

minified.js

34 ms

focus-within-polyfill.js

71 ms

polyfill.min.js

32 ms

thunderbolt-commons.8add2233.bundle.min.js

136 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Cardiffscuba.co.uk, 40% (19 requests) were made to Static.parastorage.com and 27% (13 requests) were made to Static.wixstatic.com. The less responsive or slowest element that took the longest time to load (393 ms) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 587.1 kB (58%)

Content Size

1.0 MB

After Optimization

431.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Cardiffscuba.co.uk main page is 1.0 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. 50% of websites need less resources to load. HTML takes 725.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 582.4 kB

  • Original 725.9 kB
  • After minification 724.3 kB
  • After compression 143.5 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 582.4 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 449 B

  • Original 47.3 kB
  • After minification 46.8 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. Cardiff Scuba images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 4.2 kB

  • Original 245.5 kB
  • After minification 245.5 kB
  • After compression 241.3 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.

Requests Breakdown

Number of requests can be reduced by 10 (36%)

Requests Now

28

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cardiff Scuba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.cardiffscuba.co.uk

www.cardiffscuba.co.uk

95 ms

minified.js

minified.js

34 ms

focus-within-polyfill.js

focus-within-polyfill.js

71 ms

polyfill.min.js

polyfill.min.js

32 ms

thunderbolt-commons.8add2233.bundle.min.js

thunderbolt-commons.8add2233.bundle.min.js

136 ms

main.1550a9c2.bundle.min.js

main.1550a9c2.bundle.min.js

136 ms

main.renderer.1d21f023.bundle.min.js

main.renderer.1d21f023.bundle.min.js

131 ms

lodash.min.js

lodash.min.js

136 ms

react.production.min.js

react.production.min.js

130 ms

react-dom.production.min.js

react-dom.production.min.js

136 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

150 ms

11062b_95d34f15761e4114a57b17823228948ef000.jpg

11062b_95d34f15761e4114a57b17823228948ef000.jpg

92 ms

bundle.min.js

bundle.min.js

83 ms

Cardiff%20Scuba%20Logo%20-%20Dan.jpg

Cardiff%20Scuba%20Logo%20-%20Dan.jpg

204 ms

SDI-Logo%202.png

SDI-Logo%202.png

240 ms

Emergency-First-Response-International.jpg

Emergency-First-Response-International.jpg

241 ms

TDI-logo.jpg

TDI-logo.jpg

297 ms

SDI-5%20Star-IDC.jpg

SDI-5%20Star-IDC.jpg

203 ms

PADI-Dive-Centre.jpg

PADI-Dive-Centre.jpg

202 ms

TecRec03.jpg

TecRec03.jpg

348 ms

EFR.jpg

EFR.jpg

393 ms

PADI-Logo2.jpg

PADI-Logo2.jpg

340 ms

fc7570_416a56430a9e4e2abd030cd2656120ef~mv2_d_6506_3420_s_4_2.jpg

fc7570_416a56430a9e4e2abd030cd2656120ef~mv2_d_6506_3420_s_4_2.jpg

241 ms

fc7570_4b14e3f7cbe24146aa7f74162ac8a04a~mv2_d_4839_2502_s_4_2.jpg

fc7570_4b14e3f7cbe24146aa7f74162ac8a04a~mv2_d_4839_2502_s_4_2.jpg

242 ms

rob.jpg

rob.jpg

392 ms

174 ms

172 ms

163 ms

164 ms

163 ms

161 ms

196 ms

196 ms

194 ms

189 ms

188 ms

189 ms

e56ecb6d-da41-4bd9-982d-2d295bec9ab0.woff

e56ecb6d-da41-4bd9-982d-2d295bec9ab0.woff

8 ms

4d716cea-5ba0-437a-b5a8-89ad159ea2be.woff

4d716cea-5ba0-437a-b5a8-89ad159ea2be.woff

17 ms

ProximaNovaW05-Regular.woff

ProximaNovaW05-Regular.woff

17 ms

c257a373-9919-458c-b7b2-83850775058d.woff

c257a373-9919-458c-b7b2-83850775058d.woff

16 ms

deprecation-en.v5.html

deprecation-en.v5.html

7 ms

bolt-performance

bolt-performance

34 ms

deprecation-style.v5.css

deprecation-style.v5.css

7 ms

right-arrow.svg

right-arrow.svg

26 ms

WixMadeforDisplay_W_Bd.woff

WixMadeforDisplay_W_Bd.woff

4 ms

WixMadeforText_W_Bd.woff

WixMadeforText_W_Bd.woff

7 ms

WixMadeforText_W_Rg.woff

WixMadeforText_W_Rg.woff

8 ms

Accessibility Review

cardiffscuba.co.uk accessibility score

98

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.

Best Practices

cardiffscuba.co.uk best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

cardiffscuba.co.uk SEO score

93

Search Engine Optimization Advices

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 doesn't use legible font sizes

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 Cardiffscuba.co.uk 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 Cardiffscuba.co.uk 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

cardiffscuba.co.uk

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