Tools & Wizards About Us
plymouthdivingcentre.co.uk screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

plymouthdivingcentre.co.uk

Welcome to Plymouth Diving Centre online - your local PADI 5 Star IDC Dive Resort | main-site

Page Load Speed

25.7 sec in total

First Response

1.6 sec

Resources Loaded

23.9 sec

Page Rendered

227 ms

plymouthdivingcentre.co.uk screenshot

About Website

Click here to check amazing Plymouth Diving Centre content. Otherwise, check out these important facts you probably never knew about plymouthdivingcentre.co.uk

Plymouth Diving Centre, Plymouths premier PADI 5 Star IDC, in Plymouth, Devon.PADI Diver training, Boat Diving, Wreck Diving, Dive Club. regularly diving popular Plymouth Dives, HMS Scylla, James egan...

Visit plymouthdivingcentre.co.uk

Key Findings

We analyzed Plymouthdivingcentre.co.uk page load time and found that the first response time was 1.6 sec and then it took 24.1 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

plymouthdivingcentre.co.uk performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value14.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value15.1 s

0/100

25%

SI (Speed Index)

Value25.0 s

0/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.042

99/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

plymouthdivingcentre.co.uk

1576 ms

content.css

309 ms

style.css

314 ms

bootstrap.css

410 ms

flexbt4_custom.css

315 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 91% of them (58 requests) were addressed to the original Plymouthdivingcentre.co.uk, 6% (4 requests) were made to Teigndivingcentre.co.uk and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (19.8 sec) relates to the external source Tr8testme.com.gridhosted.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 202.8 kB (19%)

Content Size

1.1 MB

After Optimization

862.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Plymouthdivingcentre.co.uk main page is 1.1 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. 55% of websites need less resources to load. Images take 654.0 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 55.4 kB

  • Original 66.5 kB
  • After minification 60.6 kB
  • After compression 11.1 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 55.4 kB or 83% of the original size.

Image Optimization

-10%

Potential reduce by 62.3 kB

  • Original 654.0 kB
  • After minification 591.7 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. Plymouth Diving Centre images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 50.2 kB

  • Original 246.7 kB
  • After minification 246.7 kB
  • After compression 196.5 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 50.2 kB or 20% of the original size.

CSS Optimization

-36%

Potential reduce by 34.9 kB

  • Original 97.7 kB
  • After minification 96.2 kB
  • After compression 62.8 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. Plymouthdivingcentre.co.uk needs all CSS files to be minified and compressed as it can save up to 34.9 kB or 36% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (61%)

Requests Now

57

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Plymouth Diving Centre. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

plymouthdivingcentre.co.uk

plymouthdivingcentre.co.uk

1576 ms

content.css

content.css

309 ms

style.css

style.css

314 ms

bootstrap.css

bootstrap.css

410 ms

flexbt4_custom.css

flexbt4_custom.css

315 ms

font-awesome.min.css

font-awesome.min.css

324 ms

template.css

template.css

401 ms

color_45c48cce2e2d7fbdea1afc51c7c6ad26.css

color_45c48cce2e2d7fbdea1afc51c7c6ad26.css

625 ms

layout_45c48cce2e2d7fbdea1afc51c7c6ad26.css

layout_45c48cce2e2d7fbdea1afc51c7c6ad26.css

626 ms

general_45c48cce2e2d7fbdea1afc51c7c6ad26.css

general_45c48cce2e2d7fbdea1afc51c7c6ad26.css

629 ms

general_overwrite_45c48cce2e2d7fbdea1afc51c7c6ad26.css

general_overwrite_45c48cce2e2d7fbdea1afc51c7c6ad26.css

641 ms

menu_45c48cce2e2d7fbdea1afc51c7c6ad26.css

menu_45c48cce2e2d7fbdea1afc51c7c6ad26.css

937 ms

custom_css.css

custom_css.css

415 ms

common.css

common.css

957 ms

default.css

default.css

967 ms

default.css

default.css

1016 ms

style.css

style.css

1030 ms

style.css

style.css

1245 ms

skitter.styles.css

skitter.styles.css

1259 ms

jquery.min.js

jquery.min.js

1356 ms

jquery-noconflict.js

jquery-noconflict.js

1290 ms

jquery-migrate.min.js

jquery-migrate.min.js

1329 ms

caption.js

caption.js

1341 ms

bootstrap.min.js

bootstrap.min.js

1557 ms

utils.js

utils.js

1568 ms

template.js

template.js

1602 ms

mootools-core.js

mootools-core.js

1720 ms

core.js

core.js

1650 ms

mootools-more.js

mootools-more.js

1816 ms

jcalpro.min.js

jcalpro.min.js

1869 ms

ajax.js

ajax.js

1875 ms

engine.mootools.js

engine.mootools.js

1914 ms

jquery.min.js

jquery.min.js

2045 ms

jsn_is_conflict.js

jsn_is_conflict.js

2032 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

2128 ms

jquery.animate-colors-min.js

jquery.animate-colors-min.js

1880 ms

jquery.skitter.js

jquery.skitter.js

1956 ms

css

css

57 ms

custom_css.css

custom_css.css

1817 ms

mixins

mixins

1913 ms

bg-body.png

bg-body.png

19776 ms

learn_to_dive_button.png

learn_to_dive_button.png

436 ms

PDC_Logo_1.png

PDC_Logo_1.png

467 ms

PDC_PADI%20Boat%20Diving.jpg

PDC_PADI%20Boat%20Diving.jpg

470 ms

PDC_PADI%20Con%20Ed.jpg

PDC_PADI%20Con%20Ed.jpg

539 ms

PDC_PADI%20Learn%20to%20dive.jpg

PDC_PADI%20Learn%20to%20dive.jpg

507 ms

PDC_PADI%20tec-rec.jpg

PDC_PADI%20tec-rec.jpg

492 ms

PDC_Wreck%20diving.jpg

PDC_Wreck%20diving.jpg

489 ms

store_button.png

store_button.png

852 ms

dive%20sites%20button.png

dive%20sites%20button.png

849 ms

PADI_O2_providernsp-93.jpg

PADI_O2_providernsp-93.jpg

878 ms

downloaded.PADI_Boat_Diver_Coursensp-93.jpg

downloaded.PADI_Boat_Diver_Coursensp-93.jpg

895 ms

PADI_Specialty_coursesnsp-93.jpg

PADI_Specialty_coursesnsp-93.jpg

908 ms

tr8-media-logo-rectangle-150x40.png

tr8-media-logo-rectangle-150x40.png

927 ms

PADI_TecRec_button.png

PADI_TecRec_button.png

439 ms

mini_arrowleft.gif

mini_arrowleft.gif

1067 ms

mini_arrowright.gif

mini_arrowright.gif

1075 ms

tile.gif

tile.gif

1100 ms

prev.png

prev.png

1133 ms

next.png

next.png

1132 ms

ajax-loader.gif

ajax-loader.gif

1156 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1614 ms

learn_to_dive_button.png

learn_to_dive_button.png

409 ms

PADI_TecRec_button.png

PADI_TecRec_button.png

388 ms

Accessibility Review

plymouthdivingcentre.co.uk 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.

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

plymouthdivingcentre.co.uk best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

plymouthdivingcentre.co.uk SEO score

54

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

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

    EN

  • Encoding

    UTF-8

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

plymouthdivingcentre.co.uk

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