Tools & Wizards About Us
nantucketsharkdivers.com screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    64% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

nantucketsharkdivers.com

Nantucket Shark Divers | Shark Diving in Nantucket | Daily Dives!

Page Load Speed

1.1 sec in total

First Response

43 ms

Resources Loaded

457 ms

Page Rendered

558 ms

nantucketsharkdivers.com screenshot

About Website

Click here to check amazing Nantucket Shark Divers content. Otherwise, check out these important facts you probably never knew about nantucketsharkdivers.com

Join Nantucket Shark Divers for the adventure of a lifetime with open ocean shark diving adventures off of Nantucket Island.

Visit nantucketsharkdivers.com

Key Findings

We analyzed Nantucketsharkdivers.com page load time and found that the first response time was 43 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

nantucketsharkdivers.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value540 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value1.021

2/100

15%

TTI (Time to Interactive)

Value4.9 s

77/100

10%

Network Requests Diagram

nantucketsharkdivers.com

43 ms

et-divi-dynamic-tb-10-tb-15-20-late.css

8 ms

jquery.min.js

59 ms

jquery-migrate.min.js

15 ms

scripts.min.js

23 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 47% of them (18 requests) were addressed to the original Nantucketsharkdivers.com, 53% (20 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (170 ms) belongs to the original domain Nantucketsharkdivers.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 154.3 kB (20%)

Content Size

761.2 kB

After Optimization

607.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nantucketsharkdivers.com main page is 761.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 480.7 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 132.2 kB

  • Original 156.0 kB
  • After minification 151.1 kB
  • After compression 23.8 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 132.2 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 9.0 kB

  • Original 480.7 kB
  • After minification 471.7 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. Nantucket Shark Divers images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 12.9 kB

  • Original 123.3 kB
  • After minification 123.3 kB
  • After compression 110.3 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

-13%

Potential reduce by 158 B

  • Original 1.2 kB
  • After minification 1.2 kB
  • After compression 1.1 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. Nantucketsharkdivers.com needs all CSS files to be minified and compressed as it can save up to 158 B or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (31%)

Requests Now

16

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nantucket Shark Divers. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

nantucketsharkdivers.com

nantucketsharkdivers.com

43 ms

et-divi-dynamic-tb-10-tb-15-20-late.css

et-divi-dynamic-tb-10-tb-15-20-late.css

8 ms

jquery.min.js

jquery.min.js

59 ms

jquery-migrate.min.js

jquery-migrate.min.js

15 ms

scripts.min.js

scripts.min.js

23 ms

jquery.fitvids.js

jquery.fitvids.js

14 ms

jquery.mobile.js

jquery.mobile.js

13 ms

common.js

common.js

54 ms

nantucket-shark-diving-logo.png

nantucket-shark-diving-logo.png

170 ms

nantucket-shark-diving-feature-1-1.jpg

nantucket-shark-diving-feature-1-1.jpg

20 ms

meet-the-sharks-of-nantucket-1-1.jpg

meet-the-sharks-of-nantucket-1-1.jpg

20 ms

about-nantucket-shark-diving-1.jpg

about-nantucket-shark-diving-1.jpg

21 ms

photo-packages-nantucket-shark-diving-1.jpg

photo-packages-nantucket-shark-diving-1.jpg

23 ms

shark-diving-in-nantucket-1-1.jpg

shark-diving-in-nantucket-1-1.jpg

24 ms

nantucket-shark-diving-vertical-1-1.jpg

nantucket-shark-diving-vertical-1-1.jpg

25 ms

nantucket-shark-diving-cta-hero-home-pg-2-1.jpg

nantucket-shark-diving-cta-hero-home-pg-2-1.jpg

33 ms

shark-content-8-2.jpg

shark-content-8-2.jpg

31 ms

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39 ms

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43 ms

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42 ms

modules.woff

modules.woff

24 ms

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43 ms

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42 ms

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43 ms

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44 ms

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48 ms

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47 ms

Accessibility Review

nantucketsharkdivers.com accessibility score

70

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

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

nantucketsharkdivers.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

SEO Factors

nantucketsharkdivers.com SEO score

93

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

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 Nantucketsharkdivers.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 Nantucketsharkdivers.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

nantucketsharkdivers.com

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