Tools & Wizards About Us
marlin.ac.uk screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 79% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

marlin.ac.uk

Home - MarLIN - The Marine Life Information Network

Page Load Speed

2.3 sec in total

First Response

279 ms

Resources Loaded

1.9 sec

Page Rendered

143 ms

marlin.ac.uk screenshot

About Website

Visit marlin.ac.uk now to see the best up-to-date MarLIN content for United Kingdom and also check out these interesting facts you probably never knew about marlin.ac.uk

Marine Life Information Network (MarLIN) - information on the marine species and habitats of the British Isles to support conservation, management and planning

Visit marlin.ac.uk

Key Findings

We analyzed Marlin.ac.uk page load time and found that the first response time was 279 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

marlin.ac.uk performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value8.0 s

2/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

marlin.ac.uk

279 ms

626 ms

bootstrap.min.css

93 ms

flat-ui-pro.min.css

187 ms

menu.css

250 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 93% of them (43 requests) were addressed to the original Marlin.ac.uk, 2% (1 request) were made to Googletagmanager.com and 2% (1 request) were made to I.creativecommons.org. The less responsive or slowest element that took the longest time to load (626 ms) belongs to the original domain Marlin.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 66.2 kB (20%)

Content Size

336.6 kB

After Optimization

270.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Marlin.ac.uk main page is 336.6 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. 40% of websites need less resources to load. Images take 132.6 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 31.2 kB

  • Original 38.5 kB
  • After minification 33.7 kB
  • After compression 7.3 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 4.7 kB, which is 12% 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 31.2 kB or 81% of the original size.

Image Optimization

-23%

Potential reduce by 30.2 kB

  • Original 132.6 kB
  • After minification 102.4 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, MarLIN needs image optimization as it can save up to 30.2 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

-2%

Potential reduce by 1.5 kB

  • Original 88.5 kB
  • After minification 88.5 kB
  • After compression 87.0 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 3.5 kB

  • Original 77.1 kB
  • After minification 77.1 kB
  • After compression 73.7 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. Marlin.ac.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (54%)

Requests Now

35

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of MarLIN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

marlin.ac.uk

marlin.ac.uk

279 ms

626 ms

bootstrap.min.css

bootstrap.min.css

93 ms

flat-ui-pro.min.css

flat-ui-pro.min.css

187 ms

menu.css

menu.css

250 ms

marlin-glyphs.css

marlin-glyphs.css

257 ms

font-awesome.min.css

font-awesome.min.css

258 ms

academicons.min.css

academicons.min.css

260 ms

select2.css

select2.css

265 ms

select2-bootstrap.css

select2-bootstrap.css

273 ms

cookieconsent.css

cookieconsent.css

334 ms

fomscb-autocomplete.css

fomscb-autocomplete.css

342 ms

main.css

main.css

345 ms

jquery-2.1.4.min.js

jquery-2.1.4.min.js

436 ms

js

js

75 ms

bootstrap.min.js

bootstrap.min.js

354 ms

jquery.tagsinput.js

jquery.tagsinput.js

360 ms

jquery.placeholder.js

jquery.placeholder.js

415 ms

imagesloaded.pkgd.min.js

imagesloaded.pkgd.min.js

427 ms

masonry.pkgd.min.js

masonry.pkgd.min.js

430 ms

select2.min.js

select2.min.js

553 ms

cookieconsent.js

cookieconsent.js

554 ms

cookieconsent-config.js

cookieconsent-config.js

558 ms

88x31.png

88x31.png

125 ms

marlin-logo.png

marlin-logo.png

94 ms

homemain.png

homemain.png

94 ms

biodiversity.png

biodiversity.png

93 ms

evidence.png

evidence.png

94 ms

defra.jpg

defra.jpg

93 ms

johnellerman.png

johnellerman.png

179 ms

jncclogo-large.png

jncclogo-large.png

177 ms

NE-logo.png

NE-logo.png

177 ms

snh.png

snh.png

178 ms

nrw_logo.png

nrw_logo.png

255 ms

daera.png

daera.png

260 ms

scottish-gov.jpg

scottish-gov.jpg

262 ms

mba-logo-white.png

mba-logo-white.png

263 ms

lato-regular.woff

lato-regular.woff

176 ms

lato-light.woff

lato-light.woff

182 ms

lato-bold.woff

lato-bold.woff

331 ms

lato-black.woff

lato-black.woff

258 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

430 ms

flat-ui-pro-icons-regular.woff

flat-ui-pro-icons-regular.woff

264 ms

marlin-glyphs.ttf

marlin-glyphs.ttf

265 ms

marlin-glyphs.ttf

marlin-glyphs.ttf

275 ms

88x31.png

88x31.png

53 ms

Accessibility Review

marlin.ac.uk accessibility score

92

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[role] values are not valid

Best Practices

marlin.ac.uk best practices score

75

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

High

Browser errors were logged to the console

SEO Factors

marlin.ac.uk SEO score

89

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 Marlin.ac.uk 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 Marlin.ac.uk 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

marlin.ac.uk

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