Report Summary

  • 48

    Performance

    Renders faster than
    68% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 73% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

whaleshark.org

Sharkbook: Wildbook for Sharks

Page Load Speed

18.8 sec in total

First Response

7.5 sec

Resources Loaded

9.6 sec

Page Rendered

1.7 sec

whaleshark.org screenshot

About Website

Visit whaleshark.org now to see the best up-to-date Whaleshark content and also check out these interesting facts you probably never knew about whaleshark.org

Sharkbook is a visual database of shark encounters and of individually catalogued sharks. The library is maintained and used by marine biologists to collect and analyse shark encounter data to learn m...

Visit whaleshark.org

Key Findings

We analyzed Whaleshark.org page load time and found that the first response time was 7.5 sec and then it took 11.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

whaleshark.org performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.0 s

0/100

25%

SI (Speed Index)

Value11.1 s

5/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.059

98/100

15%

TTI (Time to Interactive)

Value9.7 s

29/100

10%

Network Requests Diagram

whaleshark.org

7466 ms

css

23 ms

manta.css

460 ms

jquery-ui.css

337 ms

zocial.css

346 ms

Our browser made a total of 97 requests to load all elements on the main page. We found that 43% of them (42 requests) were addressed to the original Whaleshark.org, 33% (32 requests) were made to Maps.google.com and 10% (10 requests) were made to Maps.gstatic.com. The less responsive or slowest element that took the longest time to load (7.5 sec) belongs to the original domain Whaleshark.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 961.7 kB (38%)

Content Size

2.5 MB

After Optimization

1.5 MB

In fact, the total size of Whaleshark.org main page is 2.5 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 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 82.1 kB

  • Original 96.8 kB
  • After minification 87.1 kB
  • After compression 14.7 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 82.1 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 26.3 kB

  • Original 1.2 MB
  • After minification 1.2 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. Whaleshark images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 609.3 kB

  • Original 879.8 kB
  • After minification 861.6 kB
  • After compression 270.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 609.3 kB or 69% of the original size.

CSS Optimization

-75%

Potential reduce by 244.0 kB

  • Original 324.4 kB
  • After minification 303.1 kB
  • After compression 80.4 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. Whaleshark.org needs all CSS files to be minified and compressed as it can save up to 244.0 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (45%)

Requests Now

87

After Optimization

48

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Whaleshark. 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 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

whaleshark.org accessibility score

89

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

whaleshark.org best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

whaleshark.org SEO score

98

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Whaleshark.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Whaleshark.org 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

Open Graph description is not detected on the main page of Whaleshark. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: