Tools & Wizards About Us
marinersschool.com screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

marinersschool.com

Mariners Learning System: USCG Captain's Licensing Online

Page Load Speed

3.8 sec in total

First Response

32 ms

Resources Loaded

2.3 sec

Page Rendered

1.4 sec

marinersschool.com screenshot

About Website

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

Take recreational and commercial boating courses on-the-go through Mariners Learning System. We offer USCG-approved captain's license training and testing.

Visit marinersschool.com

Key Findings

We analyzed Marinersschool.com page load time and found that the first response time was 32 ms and then it took 3.7 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

marinersschool.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value19.1 s

0/100

10%

TBT (Total Blocking Time)

Value14,990 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.121

84/100

15%

TTI (Time to Interactive)

Value44.6 s

0/100

10%

Network Requests Diagram

marinersschool.com

32 ms

marinerslearningsystem.com

403 ms

fancybox.css

44 ms

styles.css

55 ms

mc.css

35 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Marinersschool.com, 74% (71 requests) were made to Marinerslearningsystem.com and 2% (2 requests) were made to Cdn-widgetsrepository.yotpo.com. The less responsive or slowest element that took the longest time to load (893 ms) relates to the external source Marinerslearningsystem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 384.4 kB (25%)

Content Size

1.6 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Marinersschool.com main page is 1.6 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. 65% of websites need less resources to load. Images take 646.4 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 320.4 kB

  • Original 371.9 kB
  • After minification 311.6 kB
  • After compression 51.5 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. This page needs HTML code to be minified as it can gain 60.3 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 320.4 kB or 86% of the original size.

Image Optimization

-2%

Potential reduce by 14.2 kB

  • Original 646.4 kB
  • After minification 632.2 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. Mariners School images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 49.7 kB

  • Original 478.9 kB
  • After minification 478.9 kB
  • After compression 429.2 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

-0%

Potential reduce by 98 B

  • Original 61.0 kB
  • After minification 61.0 kB
  • After compression 60.9 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. Marinersschool.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 33 (41%)

Requests Now

80

After Optimization

47

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mariners School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

marinersschool.com

marinersschool.com

32 ms

marinerslearningsystem.com

marinerslearningsystem.com

403 ms

fancybox.css

fancybox.css

44 ms

styles.css

styles.css

55 ms

mc.css

mc.css

35 ms

instantclick.min.js

instantclick.min.js

42 ms

preloads.js

preloads.js

180 ms

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47 ms

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151 ms

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181 ms

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336 ms

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221 ms

consentmo_cookie_consent.js

consentmo_cookie_consent.js

178 ms

shopify-perf-kit-1.0.1.min.js

shopify-perf-kit-1.0.1.min.js

179 ms

jquery.min.js

jquery.min.js

145 ms

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202 ms

utilities.js

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216 ms

sections.js

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218 ms

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app.js

219 ms

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215 ms

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222 ms

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154 ms

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259 ms

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205 ms

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196 ms

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207 ms

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207 ms

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426 ms

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240 ms

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230 ms

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260 ms

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270 ms

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294 ms

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304 ms

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301 ms

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327 ms

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343 ms

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353 ms

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331 ms

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344 ms

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379 ms

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391 ms

catamaran_50x.jpg

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636 ms

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382 ms

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395 ms

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398 ms

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419 ms

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388 ms

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166 ms

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147 ms

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150 ms

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392 ms

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378 ms

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405 ms

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436 ms

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402 ms

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410 ms

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421 ms

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452 ms

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89 ms

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347 ms

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307 ms

five-stars_small.svg

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335 ms

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CaptainsLicense_Cover_ProductPage_UPDATES_TowingEndorsement_50x.png

725 ms

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779 ms

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803 ms

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893 ms

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711 ms

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17 ms

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735 ms

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55 ms

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27 ms

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28 ms

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2 ms

Accessibility Review

marinersschool.com accessibility score

95

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

Links do not have a discernible name

Best Practices

marinersschool.com best practices score

75

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

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

marinersschool.com SEO score

91

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

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 Marinersschool.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 Marinersschool.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

marinersschool.com

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