Tools & Wizards About Us
marine.ac.nz screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

marine.ac.nz

New Zealand Marine Studies Centre Home, New Zealand Marine Studies Centre, University of Otago, New Zealand

Page Load Speed

9.5 sec in total

First Response

743 ms

Resources Loaded

8 sec

Page Rendered

783 ms

marine.ac.nz screenshot

About Website

Welcome to marine.ac.nz homepage info - get ready to check Marine best content right away, or after learning these important things about marine.ac.nz

We provide a window into marine research at the University of Otago. The Centre showcases local marine life and offers marine education programmes for all ages.

Visit marine.ac.nz

Key Findings

We analyzed Marine.ac.nz page load time and found that the first response time was 743 ms and then it took 8.8 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

marine.ac.nz performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value14.4 s

1/100

10%

TBT (Total Blocking Time)

Value9,720 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value19.2 s

2/100

10%

Network Requests Diagram

marine.ac.nz

743 ms

897 ms

442 ms

228 ms

index.html

1869 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Marine.ac.nz, 78% (63 requests) were made to Otago.ac.nz and 6% (5 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Otago.ac.nz.

Page Optimization Overview & Recommendations

Page size can be reduced by 132.7 kB (25%)

Content Size

532.4 kB

After Optimization

399.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Marine.ac.nz main page is 532.4 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. 60% of websites need less resources to load. Images take 420.9 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.8 kB

  • Original 32.1 kB
  • After minification 27.3 kB
  • After compression 7.4 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. This page needs HTML code to be minified as it can gain 4.9 kB, which is 15% 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 24.8 kB or 77% of the original size.

Image Optimization

-23%

Potential reduce by 96.4 kB

  • Original 420.9 kB
  • After minification 324.6 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. Obviously, Marine needs image optimization as it can save up to 96.4 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-11%

Potential reduce by 4.2 kB

  • Original 38.8 kB
  • After minification 38.8 kB
  • After compression 34.6 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 4.2 kB or 11% of the original size.

CSS Optimization

-18%

Potential reduce by 7.4 kB

  • Original 40.6 kB
  • After minification 40.6 kB
  • After compression 33.2 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. Marine.ac.nz needs all CSS files to be minified and compressed as it can save up to 7.4 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (54%)

Requests Now

71

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Marine. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

marine.ac.nz

marine.ac.nz

743 ms

897 ms

442 ms

228 ms

index.html

index.html

1869 ms

sitenavigationfunctions.js

sitenavigationfunctions.js

231 ms

sitenavigation.js

sitenavigation.js

451 ms

wcm.toggle.js

wcm.toggle.js

662 ms

ssajax.js

ssajax.js

677 ms

global.css

global.css

1177 ms

jquery-ui.min.css

jquery-ui.min.css

38 ms

mobile_navigation.css

mobile_navigation.css

662 ms

marine-studies.css

marine-studies.css

675 ms

jquery.min.js

jquery.min.js

44 ms

jquery-migrate.min.js

jquery-migrate.min.js

65 ms

modernizr.min.js

modernizr.min.js

55 ms

jquery-ui.min.js

jquery-ui.min.js

57 ms

general.min.js

general.min.js

674 ms

navigation_slider_and_flyouts.min.js

navigation_slider_and_flyouts.min.js

901 ms

mobile_navigation.min.js

mobile_navigation.min.js

901 ms

translate_footer.min.js

translate_footer.min.js

902 ms

gtm.js

gtm.js

62 ms

analytics.js

analytics.js

51 ms

js

js

69 ms

linkid.js

linkid.js

28 ms

collect

collect

556 ms

collect

collect

533 ms

collect

collect

216 ms

collect

collect

192 ms

background.png

background.png

387 ms

emergency-icon.svg

emergency-icon.svg

391 ms

sprite-nav.png

sprite-nav.png

388 ms

logo.png

logo.png

388 ms

flyout_right_background.png

flyout_right_background.png

373 ms

banner.jpg

banner.jpg

462 ms

site-border-bg.png

site-border-bg.png

519 ms

sprite-search.png

sprite-search.png

511 ms

title-2019.png

title-2019.png

512 ms

otago059387.jpg

otago059387.jpg

524 ms

arrow-grey-forward.svg

arrow-grey-forward.svg

518 ms

sprite-socialmedia-icons.png

sprite-socialmedia-icons.png

681 ms

otago059385.jpg

otago059385.jpg

727 ms

otago059386.jpg

otago059386.jpg

730 ms

otago0232610.png

otago0232610.png

1375 ms

otago840844.png

otago840844.png

994 ms

otago841305.png

otago841305.png

734 ms

circle-white-arrow-forward.svg

circle-white-arrow-forward.svg

899 ms

bg-footer.png

bg-footer.png

940 ms

bg-footer-li.png

bg-footer-li.png

942 ms

translate-icon.png

translate-icon.png

947 ms

bg-footer-totop.png

bg-footer-totop.png

1112 ms

kowhaiwhai-head.png

kowhaiwhai-head.png

1160 ms

mnu-logo-grey-frontpage.png

mnu-logo-grey-frontpage.png

1163 ms

qs-stars-grey-logo-2021.png

qs-stars-grey-logo-2021.png

1166 ms

bg-htag-1px-grey.png

bg-htag-1px-grey.png

1208 ms

bg-footer-social-media.png

bg-footer-social-media.png

1335 ms

bg-footer-li-2.png

bg-footer-li-2.png

1380 ms

56gpq7sxl7

56gpq7sxl7

368 ms

opensans-regular.woff

opensans-regular.woff

1102 ms

opensans-light.woff

opensans-light.woff

1101 ms

opensans-semibold.woff

opensans-semibold.woff

1226 ms

amsiprocond-bold-webfont.woff

amsiprocond-bold-webfont.woff

1272 ms

amsiprocond-light-webfont.woff

amsiprocond-light-webfont.woff

1303 ms

icon-home.svg

icon-home.svg

1274 ms

search-icon-mobile.svg

search-icon-mobile.svg

1277 ms

ga-audiences

ga-audiences

110 ms

cdf_flyout_thinking.xml

cdf_flyout_thinking.xml

1223 ms

cdf_flyout_students.xml

cdf_flyout_students.xml

1253 ms

cdf_flyout_staff.xml

cdf_flyout_staff.xml

1358 ms

cdf_flyout_about.xml

cdf_flyout_about.xml

1385 ms

cdf_flyout_research.xml

cdf_flyout_research.xml

1399 ms

cdf_flyout_learning.xml

cdf_flyout_learning.xml

1389 ms

clarity.js

clarity.js

19 ms

cdf_flyout_maori.xml

cdf_flyout_maori.xml

1375 ms

cdf_flyout_international.xml

cdf_flyout_international.xml

1371 ms

cdf_flyout_alumni.xml

cdf_flyout_alumni.xml

1497 ms

cdf_flyout_contact.xml

cdf_flyout_contact.xml

1515 ms

cdf_flyout_pacific.xml

cdf_flyout_pacific.xml

1533 ms

bookmark-menu.svg

bookmark-menu.svg

1527 ms

print.css

print.css

220 ms

c.gif

c.gif

38 ms

Accessibility Review

marine.ac.nz accessibility score

95

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

marine.ac.nz best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

marine.ac.nz SEO score

83

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

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 Marine.ac.nz 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 Marine.ac.nz 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

marine.ac.nz

Open Graph description is not detected on the main page of Marine. 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: