Tools & Wizards About Us
sealeveldiving.com screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

sealeveldiving.com

Sea Level Diving-McHenry County's Finest Full Service Scuba Facility

Page Load Speed

8.7 sec in total

First Response

118 ms

Resources Loaded

2.4 sec

Page Rendered

6.2 sec

sealeveldiving.com screenshot

About Website

Visit sealeveldiving.com now to see the best up-to-date Sea Level Diving content and also check out these interesting facts you probably never knew about sealeveldiving.com

Sea Level Diving, a PADI 5 star Scuba facility, is the largest scuba shop in northern Illinois. We offer scuba and snorkeling classes, equipment sales and repair, air fills and diving vacations.

Visit sealeveldiving.com

Key Findings

We analyzed Sealeveldiving.com page load time and found that the first response time was 118 ms and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

sealeveldiving.com performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value12.8 s

0/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.11

87/100

15%

TTI (Time to Interactive)

Value4.4 s

84/100

10%

Network Requests Diagram

sealeveldiving.com

118 ms

sealeveldiving.com

774 ms

joomla-alert.min.css

60 ms

font-awesome-5.min.css

222 ms

font-awesome-v4-shims.css

220 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 71% of them (55 requests) were addressed to the original Sealeveldiving.com, 9% (7 requests) were made to Fonts.gstatic.com and 6% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (774 ms) belongs to the original domain Sealeveldiving.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 162.3 kB (9%)

Content Size

1.8 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sealeveldiving.com main page is 1.8 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. Only a small number of websites need less resources to load. Images take 986.4 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 153.9 kB

  • Original 183.3 kB
  • After minification 182.5 kB
  • After compression 29.4 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 153.9 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 921 B

  • Original 986.4 kB
  • After minification 985.5 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. Sea Level Diving images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.8 kB

  • Original 366.8 kB
  • After minification 366.8 kB
  • After compression 363.9 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 4.6 kB

  • Original 248.8 kB
  • After minification 248.8 kB
  • After compression 244.2 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. Sealeveldiving.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 47 (76%)

Requests Now

62

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sea Level Diving. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sealeveldiving.com

sealeveldiving.com

118 ms

sealeveldiving.com

sealeveldiving.com

774 ms

joomla-alert.min.css

joomla-alert.min.css

60 ms

font-awesome-5.min.css

font-awesome-5.min.css

222 ms

font-awesome-v4-shims.css

font-awesome-v4-shims.css

220 ms

animate.min.css

animate.min.css

217 ms

sppagebuilder.css

sppagebuilder.css

272 ms

magnific-popup.css

magnific-popup.css

218 ms

js_slider.css

js_slider.css

118 ms

jquery.bxslider.min.css

jquery.bxslider.min.css

174 ms

slick.css

slick.css

228 ms

slick-theme.css

slick-theme.css

282 ms

page-1.css

page-1.css

278 ms

content.min.css

content.min.css

281 ms

css

css

36 ms

bootstrap.min.css

bootstrap.min.css

337 ms

joomla-fontawesome.min.css

joomla-fontawesome.min.css

284 ms

font-awesome-v4-shims.min.css

font-awesome-v4-shims.min.css

329 ms

template.css

template.css

449 ms

preset1.css

preset1.css

345 ms

frontend-edit.css

frontend-edit.css

341 ms

css

css

53 ms

frontend.css

frontend.css

342 ms

core.min.js

core.min.js

384 ms

finder-es5.min.js

finder-es5.min.js

391 ms

messages-es5.min.js

messages-es5.min.js

399 ms

jquery.min.js

jquery.min.js

399 ms

jquery-noconflict.min.js

jquery-noconflict.min.js

393 ms

finder.min.js

finder.min.js

438 ms

messages.min.js

messages.min.js

480 ms

common.js

common.js

478 ms

jquery.parallax.js

jquery.parallax.js

479 ms

sppagebuilder.js

sppagebuilder.js

480 ms

jquery.magnific-popup.min.js

jquery.magnific-popup.min.js

495 ms

js_slider.js

js_slider.js

503 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

502 ms

slick.js

slick.js

515 ms

bootstrap.min.js

bootstrap.min.js

562 ms

jquery.easing.min.js

jquery.easing.min.js

511 ms

js

js

75 ms

sdk.js

sdk.js

18 ms

main.js

main.js

561 ms

frontend-edit.js

frontend-edit.js

503 ms

frontend.js

frontend.js

572 ms

placeholder.svg

placeholder.svg

299 ms

fQDzzFld8NI

fQDzzFld8NI

387 ms

sea-level-diving-logo.png

sea-level-diving-logo.png

276 ms

img_2893.jpg

img_2893.jpg

345 ms

pool1.jpg

pool1.jpg

277 ms

IMG_2899.jpg

IMG_2899.jpg

452 ms

img_2904.jpg

img_2904.jpg

345 ms

Cayman_Aggressor_IV.jpg

Cayman_Aggressor_IV.jpg

276 ms

Iberostar.jpg

Iberostar.jpg

384 ms

Dolghin_whale.jpg

Dolghin_whale.jpg

385 ms

fa-solid-900.woff

fa-solid-900.woff

252 ms

fa-solid-900.woff

fa-solid-900.woff

322 ms

fa-regular-400.woff

fa-regular-400.woff

293 ms

fa-regular-400.woff

fa-regular-400.woff

322 ms

Pe-icon-7-stroke.woff

Pe-icon-7-stroke.woff

358 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

180 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

183 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

249 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

252 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

252 ms

sdk.js

sdk.js

158 ms

ajax-loader.gif

ajax-loader.gif

180 ms

slick.woff

slick.woff

375 ms

64 ms

www-player.css

www-player.css

51 ms

www-embed-player.js

www-embed-player.js

68 ms

base.js

base.js

127 ms

ad_status.js

ad_status.js

193 ms

mK0xWDPcwcXQhJC0zos_TWAHQXo6uV6sCgJ_cLtDow8.js

mK0xWDPcwcXQhJC0zos_TWAHQXo6uV6sCgJ_cLtDow8.js

115 ms

embed.js

embed.js

26 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

46 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

45 ms

id

id

59 ms

Accessibility Review

sealeveldiving.com accessibility score

90

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-hidden="true"] elements contain focusable descendents

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

Form elements do not have associated labels

Best Practices

sealeveldiving.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

sealeveldiving.com SEO score

86

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

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

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 Sealeveldiving.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 Sealeveldiving.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

sealeveldiving.com

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