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divesightltd.com screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

divesightltd.com

Dive Sight | Prescription Dive Masks & Lenses | Shop Online

Page Load Speed

6.8 sec in total

First Response

1.7 sec

Resources Loaded

4.4 sec

Page Rendered

836 ms

divesightltd.com screenshot

About Website

Welcome to divesightltd.com homepage info - get ready to check Dive Sight Ltd best content right away, or after learning these important things about divesightltd.com

Dive Sight are the UK's leading manufacturer of prescription dive masks & lenses. Optimise your diving experience. Great Prices, Fast Delivery >>

Visit divesightltd.com

Key Findings

We analyzed Divesightltd.com page load time and found that the first response time was 1.7 sec and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

divesightltd.com performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value1,320 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value10.5 s

24/100

10%

Network Requests Diagram

divesightltd.com

1656 ms

wc-square-cart-checkout-blocks.min.css

26 ms

style.min.css

27 ms

style.css

345 ms

oxygen.css

31 ms

Our browser made a total of 119 requests to load all elements on the main page. We found that 69% of them (82 requests) were addressed to the original Divesightltd.com, 11% (13 requests) were made to Embed.tawk.to and 5% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Divesightltd.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 286.4 kB (11%)

Content Size

2.5 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Divesightltd.com main page is 2.5 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. 70% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 251.2 kB

  • Original 316.3 kB
  • After minification 316.1 kB
  • After compression 65.1 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 251.2 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 6.7 kB

  • Original 1.7 MB
  • After minification 1.7 MB

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. Dive Sight Ltd images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 26.2 kB

  • Original 351.4 kB
  • After minification 351.4 kB
  • After compression 325.2 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

-2%

Potential reduce by 2.3 kB

  • Original 148.0 kB
  • After minification 148.0 kB
  • After compression 145.8 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. Divesightltd.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 79 (70%)

Requests Now

113

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 113 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dive Sight Ltd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 60 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

divesightltd.com

divesightltd.com

1656 ms

wc-square-cart-checkout-blocks.min.css

wc-square-cart-checkout-blocks.min.css

26 ms

style.min.css

style.min.css

27 ms

style.css

style.css

345 ms

oxygen.css

oxygen.css

31 ms

woocommerce-layout.css

woocommerce-layout.css

348 ms

woocommerce.css

woocommerce.css

43 ms

public-main.css

public-main.css

40 ms

638dbc6b7ea2e115.css

638dbc6b7ea2e115.css

37 ms

style.min.css

style.min.css

46 ms

style_1.css

style_1.css

50 ms

style.css

style.css

362 ms

alg-wc-checkout-files-upload-ajax.css

alg-wc-checkout-files-upload-ajax.css

365 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

372 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

131 ms

wp-polyfill.min.js

wp-polyfill.min.js

170 ms

hooks.min.js

hooks.min.js

178 ms

w.js

w.js

31 ms

jquery.min.js

jquery.min.js

186 ms

jquery.blockUI.min.js

jquery.blockUI.min.js

194 ms

add-to-cart.min.js

add-to-cart.min.js

203 ms

js.cookie.min.js

js.cookie.min.js

211 ms

woocommerce.min.js

woocommerce.min.js

218 ms

public-main.js

public-main.js

235 ms

single-product.min.js

single-product.min.js

246 ms

custom.js

custom.js

256 ms

alg-wc-checkout-files-upload-ajax.js

alg-wc-checkout-files-upload-ajax.js

267 ms

js

js

77 ms

4679.js

4679.js

43 ms

1271.css

1271.css

593 ms

9.css

9.css

666 ms

universal.css

universal.css

681 ms

email-decode.min.js

email-decode.min.js

364 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

16 ms

aos.css

aos.css

316 ms

basic.min.css

basic.min.css

582 ms

theme-ie11.min.css

theme-ie11.min.css

371 ms

theme.min.css

theme.min.css

317 ms

script.js

script.js

606 ms

sourcebuster.min.js

sourcebuster.min.js

371 ms

order-attribution.min.js

order-attribution.min.js

390 ms

cookie.min.js

cookie.min.js

411 ms

jquery.countdown.min.js

jquery.countdown.min.js

449 ms

hurrytimer.js

hurrytimer.js

450 ms

seopress-analytics.min.js

seopress-analytics.min.js

450 ms

aos.js

aos.js

782 ms

search.min.js

search.min.js

484 ms

dom-ready.min.js

dom-ready.min.js

492 ms

i18n.min.js

i18n.min.js

496 ms

a11y.min.js

a11y.min.js

469 ms

jquery.json.min.js

jquery.json.min.js

469 ms

gravityforms.min.js

gravityforms.min.js

471 ms

placeholders.jquery.min.js

placeholders.jquery.min.js

473 ms

utils.min.js

utils.min.js

474 ms

vendor-theme.min.js

vendor-theme.min.js

465 ms

scripts-theme.min.js

scripts-theme.min.js

485 ms

akismet-frontend.js

akismet-frontend.js

467 ms

front-end.js

front-end.js

914 ms

lazyload.min.js

lazyload.min.js

447 ms

g.gif

g.gif

105 ms

fbevents.js

fbevents.js

132 ms

gtm.js

gtm.js

111 ms

diffuser.js

diffuser.js

132 ms

default

default

271 ms

Dive-Sight-Logo.svg

Dive-Sight-Logo.svg

302 ms

fb_avatar.png

fb_avatar.png

193 ms

prism.app-us1.com

prism.app-us1.com

85 ms

Muli-Regular.woff

Muli-Regular.woff

541 ms

Muli-Bold.woff

Muli-Bold.woff

541 ms

icon-colour-options.jpg

icon-colour-options.jpg

330 ms

Prescription-Dive-Masks-Special-Offer-Promo-Code.jpg

Prescription-Dive-Masks-Special-Offer-Promo-Code.jpg

508 ms

Dive-Sight-Prescription-Lenses.jpg

Dive-Sight-Prescription-Lenses.jpg

698 ms

vertical-divider.svg

vertical-divider.svg

643 ms

account-1.svg

account-1.svg

30 ms

UK-Dive-Lenses.svg

UK-Dive-Lenses.svg

31 ms

divider-turquoise.svg

divider-turquoise.svg

324 ms

Mask-with-franklin-split-lenses-300x300.jpg

Mask-with-franklin-split-lenses-300x300.jpg

730 ms

Mask-with-single-vision-lenses-300x300.jpg

Mask-with-single-vision-lenses-300x300.jpg

33 ms

Mask-with-reading-lenses-300x300.jpg

Mask-with-reading-lenses-300x300.jpg

33 ms

TUSA-Freedom-Ceos-Mask-Clear-Silicone-Purple-300x300.jpg

TUSA-Freedom-Ceos-Mask-Clear-Silicone-Purple-300x300.jpg

45 ms

Mask-with-bifocal-lenses-300x300.jpg

Mask-with-bifocal-lenses-300x300.jpg

728 ms

SCUBAPRO-CRYSTAL-VU-BLACK-SILVER-300x300.jpg

SCUBAPRO-CRYSTAL-VU-BLACK-SILVER-300x300.jpg

727 ms

TUSA-Freedom-Ceos-Mask-Black-Silicone-Silver-300x300.jpg

TUSA-Freedom-Ceos-Mask-Black-Silicone-Silver-300x300.jpg

728 ms

HOLLIS-M1-Mask--300x300.jpg

HOLLIS-M1-Mask--300x300.jpg

804 ms

Discount-Code-Coupon.png

Discount-Code-Coupon.png

863 ms

smartmockups_kok4jpec.png

smartmockups_kok4jpec.png

970 ms

divider-white.svg

divider-white.svg

803 ms

Sight-for-Sore-Eyes.jpg

Sight-for-Sore-Eyes.jpg

1096 ms

Scuba-Diving-Internationally-in-2022.jpg

Scuba-Diving-Internationally-in-2022.jpg

1084 ms

Learn-to-Dive-or-Step-Up-Your-Diving-Qualification-With-One-of-the-Main-Dive-Certification-Agencies.jpg

Learn-to-Dive-or-Step-Up-Your-Diving-Qualification-With-One-of-the-Main-Dive-Certification-Agencies.jpg

1280 ms

Dive-Sight-Logo-1.svg

Dive-Sight-Logo-1.svg

1085 ms

6FMDeflCohE

6FMDeflCohE

194 ms

1X-hNmetur0

1X-hNmetur0

311 ms

www-player.css

www-player.css

83 ms

www-embed-player.js

www-embed-player.js

82 ms

base.js

base.js

152 ms

ad_status.js

ad_status.js

295 ms

fSwQ49dNtQ0TRgWZKHlAIhVKPl4K4-2hZ-2qmgklZeM.js

fSwQ49dNtQ0TRgWZKHlAIhVKPl4K4-2hZ-2qmgklZeM.js

342 ms

embed.js

embed.js

139 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

160 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

159 ms

Create

Create

59 ms

Create

Create

151 ms

id

id

116 ms

GenerateIT

GenerateIT

106 ms

GenerateIT

GenerateIT

106 ms

woocommerce-smallscreen.css

woocommerce-smallscreen.css

9 ms

twk-arr-find-polyfill.js

twk-arr-find-polyfill.js

162 ms

twk-object-values-polyfill.js

twk-object-values-polyfill.js

56 ms

twk-event-polyfill.js

twk-event-polyfill.js

179 ms

twk-entries-polyfill.js

twk-entries-polyfill.js

61 ms

twk-iterator-polyfill.js

twk-iterator-polyfill.js

59 ms

twk-promise-polyfill.js

twk-promise-polyfill.js

59 ms

twk-main.js

twk-main.js

106 ms

twk-vendor.js

twk-vendor.js

145 ms

twk-chunk-vendors.js

twk-chunk-vendors.js

72 ms

twk-chunk-common.js

twk-chunk-common.js

186 ms

twk-runtime.js

twk-runtime.js

134 ms

twk-app.js

twk-app.js

156 ms

Accessibility Review

divesightltd.com accessibility score

89

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.

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

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

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

Best Practices

divesightltd.com 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

divesightltd.com SEO score

91

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

    EN

  • Encoding

    UTF-8

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

divesightltd.com

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