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iamssi.com screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

iamssi.com

Explore the underwater world by becoming an SSI certified Scuba Diver

Page Load Speed

4.4 sec in total

First Response

332 ms

Resources Loaded

2.6 sec

Page Rendered

1.5 sec

iamssi.com screenshot

About Website

Click here to check amazing Iam SSI content. Otherwise, check out these important facts you probably never knew about iamssi.com

For 50 years, SSI has provided high-quality training in Recreational Scuba, Extended Range, Rebreather Diving, Freediving, Swim, and Lifeguard programs.

Visit iamssi.com

Key Findings

We analyzed Iamssi.com page load time and found that the first response time was 332 ms and then it took 4 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

iamssi.com performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value17.9 s

0/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value880 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value15.8 s

6/100

10%

Network Requests Diagram

iamssi.com

332 ms

home

394 ms

website.css

183 ms

image-gallery.css

272 ms

advanced-stats.css

277 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Iamssi.com, 37% (27 requests) were made to Cdn.divessi.com and 25% (18 requests) were made to Divessi.com. The less responsive or slowest element that took the longest time to load (854 ms) relates to the external source Cdn.divessi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 73.6 kB (1%)

Content Size

6.9 MB

After Optimization

6.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Iamssi.com main page is 6.9 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. 60% of websites need less resources to load. Images take 5.9 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 56.3 kB

  • Original 73.8 kB
  • After minification 72.9 kB
  • After compression 17.4 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 56.3 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 9.0 kB

  • Original 5.9 MB
  • After minification 5.8 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. Iam SSI images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 1.8 kB

  • Original 821.2 kB
  • After minification 821.2 kB
  • After compression 819.4 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

-4%

Potential reduce by 6.5 kB

  • Original 152.6 kB
  • After minification 152.6 kB
  • After compression 146.1 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. Iamssi.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 27 (40%)

Requests Now

67

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Iam SSI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

iamssi.com

iamssi.com

332 ms

home

home

394 ms

website.css

website.css

183 ms

image-gallery.css

image-gallery.css

272 ms

advanced-stats.css

advanced-stats.css

277 ms

website-mobile.css

website-mobile.css

278 ms

cropper.css

cropper.css

276 ms

website.css

website.css

557 ms

website-rtl.css

website-rtl.css

277 ms

all.css

all.css

333 ms

line-awesome.min.css

line-awesome.min.css

453 ms

js

js

68 ms

markerclusterer.js

markerclusterer.js

458 ms

js

js

49 ms

consent.js

consent.js

136 ms

17fb6756aa40b6046ceb8905a11146da

17fb6756aa40b6046ceb8905a11146da

119 ms

flip.min.css

flip.min.css

278 ms

flip.min.js

flip.min.js

370 ms

modelproperties.php

modelproperties.php

282 ms

RenderHelper.js

RenderHelper.js

838 ms

ssi.js

ssi.js

662 ms

TX.js

TX.js

456 ms

jbxmw3pn92

jbxmw3pn92

94 ms

visualization.js

visualization.js

19 ms

main.js

main.js

20 ms

banner.no-autoblock.js

banner.no-autoblock.js

19 ms

ssi-logo.png

ssi-logo.png

375 ms

400.jpg

400.jpg

154 ms

400.jpeg

400.jpeg

156 ms

400.jpg

400.jpg

162 ms

400.jpeg

400.jpeg

163 ms

400.jpg

400.jpg

162 ms

400.jpg

400.jpg

164 ms

600.jpg

600.jpg

196 ms

400.png

400.png

160 ms

200.jpg

200.jpg

194 ms

400.jpg

400.jpg

168 ms

400.jpg

400.jpg

711 ms

400.jpg

400.jpg

854 ms

400.jpg

400.jpg

772 ms

facebook-lightgrey.svg

facebook-lightgrey.svg

172 ms

twitter-lightgrey.svg

twitter-lightgrey.svg

174 ms

instagram-lightgrey.svg

instagram-lightgrey.svg

178 ms

youtube-lightgrey.svg

youtube-lightgrey.svg

181 ms

linkedin-lightgrey.svg

linkedin-lightgrey.svg

184 ms

ssi-logo-lightgrey.svg

ssi-logo-lightgrey.svg

186 ms

Center.svg

Center.svg

389 ms

Dive_Site.svg

Dive_Site.svg

390 ms

pro.png

pro.png

390 ms

img.php

img.php

483 ms

img.php

img.php

571 ms

img.php

img.php

558 ms

img.php

img.php

570 ms

img.php

img.php

573 ms

600.jpg

600.jpg

170 ms

600.jpg

600.jpg

177 ms

600.jpg

600.jpg

177 ms

600.jpg

600.jpg

181 ms

600.jpg

600.jpg

215 ms

600.jpg

600.jpg

184 ms

600.jpg

600.jpg

191 ms

600.jpg

600.jpg

221 ms

fa-solid-900.woff

fa-solid-900.woff

25 ms

fa-regular-400.woff

fa-regular-400.woff

41 ms

la-solid-900.woff

la-solid-900.woff

274 ms

la-regular-400.woff

la-regular-400.woff

94 ms

embed-grid.js

embed-grid.js

10 ms

clarity.js

clarity.js

26 ms

scarab-v2.js

scarab-v2.js

22 ms

258 ms

wploader.js

wploader.js

12 ms

wpes5.js

wpes5.js

4 ms

c.gif

c.gif

7 ms

Accessibility Review

iamssi.com accessibility score

83

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Best Practices

iamssi.com best practices score

92

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

Missing source maps for large first-party JavaScript

SEO Factors

iamssi.com SEO score

85

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

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 Iamssi.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 Iamssi.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

iamssi.com

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