Tools & Wizards About Us
jdvos.com screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 0

    Best Practices

  • 86

    SEO

    Google-friendlier than
    60% of websites

jdvos.com

Home - Jacques de Vos - Underwater Photography & Media

Page Load Speed

4.4 sec in total

First Response

231 ms

Resources Loaded

3.6 sec

Page Rendered

556 ms

jdvos.com screenshot

About Website

Visit jdvos.com now to see the best up-to-date Jd Vos content and also check out these interesting facts you probably never knew about jdvos.com

Official page for award winning underwater photographer & cameraman Jacques de Vos. Features marine, freediving and travel related photography & video

Visit jdvos.com

Key Findings

We analyzed Jdvos.com page load time and found that the first response time was 231 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

jdvos.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value25.3 s

0/100

25%

SI (Speed Index)

Value29.9 s

0/100

10%

TBT (Total Blocking Time)

Value4,650 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value27.4 s

0/100

10%

Network Requests Diagram

jdvos.com

231 ms

jdvos.com

306 ms

layerslider.css

62 ms

style.min.css

120 ms

styles.css

165 ms

Our browser made a total of 119 requests to load all elements on the main page. We found that 68% of them (81 requests) were addressed to the original Jdvos.com, 13% (15 requests) were made to Player.vimeo.com and 6% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Jdvos.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 490.4 kB (10%)

Content Size

5.0 MB

After Optimization

4.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jdvos.com main page is 5.0 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 66.6 kB

  • Original 85.0 kB
  • After minification 83.1 kB
  • After compression 18.4 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 66.6 kB or 78% of the original size.

Image Optimization

-9%

Potential reduce by 390.9 kB

  • Original 4.1 MB
  • After minification 3.8 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. Jd Vos images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 18.7 kB

  • Original 641.0 kB
  • After minification 641.0 kB
  • After compression 622.4 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

-9%

Potential reduce by 14.3 kB

  • Original 156.8 kB
  • After minification 156.8 kB
  • After compression 142.5 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. Jdvos.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 53 (60%)

Requests Now

88

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jd Vos. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jdvos.com

jdvos.com

231 ms

jdvos.com

jdvos.com

306 ms

layerslider.css

layerslider.css

62 ms

style.min.css

style.min.css

120 ms

styles.css

styles.css

165 ms

settings.css

settings.css

166 ms

fontello.css

fontello.css

178 ms

rs6.css

rs6.css

173 ms

css

css

38 ms

css

css

43 ms

css

css

44 ms

font-awesome.min.css

font-awesome.min.css

168 ms

animate.min.css

animate.min.css

183 ms

elements.css

elements.css

218 ms

bootstrap.min.css

bootstrap.min.css

220 ms

style.css

style.css

281 ms

socials.css

socials.css

230 ms

dark.css

dark.css

231 ms

responsive.css

responsive.css

238 ms

admin-ajax.php

admin-ajax.php

2325 ms

js_composer.min.css

js_composer.min.css

339 ms

Defaults.css

Defaults.css

290 ms

jquery.min.js

jquery.min.js

364 ms

jquery-migrate.min.js

jquery-migrate.min.js

292 ms

layerslider.utils.js

layerslider.utils.js

364 ms

layerslider.kreaturamedia.jquery.js

layerslider.kreaturamedia.jquery.js

401 ms

layerslider.transitions.js

layerslider.transitions.js

365 ms

rbtools.min.js

rbtools.min.js

397 ms

rs6.min.js

rs6.min.js

461 ms

waypoints.min.js

waypoints.min.js

407 ms

jquery.appear.js

jquery.appear.js

403 ms

api.js

api.js

48 ms

owl.carousel.css

owl.carousel.css

450 ms

fullscreen_background.css

fullscreen_background.css

455 ms

css

css

38 ms

index.js

index.js

456 ms

index.js

index.js

461 ms

comment-reply.min.js

comment-reply.min.js

504 ms

bootstrap.min.js

bootstrap.min.js

510 ms

jquery.fitvids.js

jquery.fitvids.js

511 ms

jquery.flexslider.min.js

jquery.flexslider.min.js

516 ms

jquery.isotope.js

jquery.isotope.js

519 ms

jquery-ui.min.js

jquery-ui.min.js

29 ms

jquery.sticky.js

jquery.sticky.js

558 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

512 ms

jquery.parallax-1.1.3.js

jquery.parallax-1.1.3.js

452 ms

jquery.custom.js

jquery.custom.js

416 ms

jquery.superslides.js

jquery.superslides.js

415 ms

owl.carousel.js

owl.carousel.js

453 ms

js_composer_front.min.js

js_composer_front.min.js

452 ms

fullscreen_background.js

fullscreen_background.js

456 ms

akismet-frontend.js

akismet-frontend.js

449 ms

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1Ptxg8zYS_SKggPN4iEgvnHyvveLxVvaorCIPrQ.ttf

107 ms

analytics.js

analytics.js

202 ms

Original-TIFF-Colour.png

Original-TIFF-Colour.png

118 ms

slide8.jpg

slide8.jpg

60 ms

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242 ms

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236 ms

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330 ms

IMG_6920b-Final-smaller.jpg

IMG_6920b-Final-smaller.jpg

320 ms

pattern-black.png

pattern-black.png

175 ms

757A7987-smaller.jpg

757A7987-smaller.jpg

319 ms

orcab-1.jpg

orcab-1.jpg

320 ms

Sandy-Hill-smaller.jpg

Sandy-Hill-smaller.jpg

320 ms

humpback-final-1.jpg

humpback-final-1.jpg

222 ms

right.png

right.png

222 ms

left.png

left.png

317 ms

757A1146-smaller.jpg

757A1146-smaller.jpg

177 ms

plus.png

plus.png

318 ms

empty.png

empty.png

320 ms

blog-smaller-low-res.jpg

blog-smaller-low-res.jpg

176 ms

me.jpg

me.jpg

175 ms

dslr-housing-new.jpg

dslr-housing-new.jpg

175 ms

shark-final-1-of-1b.jpg

shark-final-1-of-1b.jpg

176 ms

ikelite-final.png

ikelite-final.png

320 ms

alchemy.png

alchemy.png

321 ms

atn-logo-slog-1.png

atn-logo-slog-1.png

348 ms

FDI.png

FDI.png

350 ms

steiner-5600-1.png

steiner-5600-1.png

352 ms

Nimia-R-M-Badge.png

Nimia-R-M-Badge.png

569 ms

757A1115.jpg

757A1115.jpg

175 ms

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TK3_WkUHHAIjg75cFRf3bXL8LICs169vsUZiYA.ttf

130 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYA.ttf

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136 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1y9osUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs1y9osUZiYA.ttf

136 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

317 ms

757A8232.jpg

757A8232.jpg

167 ms

recaptcha__en.js

recaptcha__en.js

151 ms

Original-TIFF-Colour.png

Original-TIFF-Colour.png

263 ms

blog-smaller-low-res.jpg

blog-smaller-low-res.jpg

257 ms

me.jpg

me.jpg

257 ms

dslr-housing-new.jpg

dslr-housing-new.jpg

258 ms

757A1115.jpg

757A1115.jpg

292 ms

757A1146-smaller.jpg

757A1146-smaller.jpg

257 ms

shark-final-1-of-1b.jpg

shark-final-1-of-1b.jpg

286 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYA.ttf

34 ms

collect

collect

101 ms

757A8232.jpg

757A8232.jpg

298 ms

left-litle.png

left-litle.png

151 ms

right-litle.png

right-litle.png

156 ms

collect

collect

53 ms

js

js

64 ms

fallback

fallback

35 ms

fallback__ltr.css

fallback__ltr.css

7 ms

css

css

54 ms

logo_48.png

logo_48.png

16 ms

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4 ms

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118566109

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1 ms

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258293242

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1 ms

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2 ms

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3 ms

258293242

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3 ms

759856400

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1 ms

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2 ms

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2 ms

Accessibility Review

jdvos.com accessibility score

70

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

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.

SEO Factors

jdvos.com SEO score

86

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

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

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 Jdvos.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 Jdvos.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

jdvos.com

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