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rnbws.org.uk screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

rnbws.org.uk

Seabird conversation | Royal Naval Birdwatching Society

Page Load Speed

1.8 sec in total

First Response

211 ms

Resources Loaded

1.5 sec

Page Rendered

79 ms

rnbws.org.uk screenshot

About Website

Click here to check amazing Rnbws content. Otherwise, check out these important facts you probably never knew about rnbws.org.uk

The Royal Naval Birdwatching Society is for science, conservation and community fieldwork for seabirds and landbirds at sea. Established for naval personnel and other mariners but all welcome. Library...

Visit rnbws.org.uk

Key Findings

We analyzed Rnbws.org.uk page load time and found that the first response time was 211 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

rnbws.org.uk performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

24/100

25%

SI (Speed Index)

Value2.9 s

95/100

10%

TBT (Total Blocking Time)

Value530 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

www.rnbws.org.uk

211 ms

originTrials.41d7301a.bundle.min.js

83 ms

minified.js

87 ms

focus-within-polyfill.js

85 ms

polyfill.min.js

439 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Rnbws.org.uk, 38% (16 requests) were made to Static.parastorage.com and 29% (12 requests) were made to Sentry-next.wixpress.com. The less responsive or slowest element that took the longest time to load (593 ms) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 386.0 kB (51%)

Content Size

757.0 kB

After Optimization

370.9 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Rnbws.org.uk main page is 757.0 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. 45% of websites need less resources to load. HTML takes 408.5 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 324.2 kB

  • Original 408.5 kB
  • After minification 407.0 kB
  • After compression 84.3 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. 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 324.2 kB or 79% of the original size.

Image Optimization

-3%

Potential reduce by 2.4 kB

  • Original 71.2 kB
  • After minification 68.8 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. Rnbws images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 59.4 kB

  • Original 277.3 kB
  • After minification 277.3 kB
  • After compression 217.9 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 59.4 kB or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (42%)

Requests Now

26

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rnbws. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.rnbws.org.uk

www.rnbws.org.uk

211 ms

originTrials.41d7301a.bundle.min.js

originTrials.41d7301a.bundle.min.js

83 ms

minified.js

minified.js

87 ms

focus-within-polyfill.js

focus-within-polyfill.js

85 ms

polyfill.min.js

polyfill.min.js

439 ms

thunderbolt-commons.1e70fbb2.bundle.min.js

thunderbolt-commons.1e70fbb2.bundle.min.js

126 ms

main.42e492e1.bundle.min.js

main.42e492e1.bundle.min.js

126 ms

lodash.min.js

lodash.min.js

125 ms

react.production.min.js

react.production.min.js

125 ms

react-dom.production.min.js

react-dom.production.min.js

126 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

126 ms

wix-perf-measure.umd.min.js

wix-perf-measure.umd.min.js

127 ms

Logo%20Trans.png

Logo%20Trans.png

246 ms

waved%20Alb.jpg

waved%20Alb.jpg

372 ms

a10c00_bfeb9c378e1b4e669375b37c21071fc8~mv2.jpg

a10c00_bfeb9c378e1b4e669375b37c21071fc8~mv2.jpg

395 ms

a10c00_39cf1bece3b245c997ada439fe9bf00f~mv2.jpg

a10c00_39cf1bece3b245c997ada439fe9bf00f~mv2.jpg

399 ms

a10c00_3ac090713c8747f6ae5b519eececd10c~mv2.jpg

a10c00_3ac090713c8747f6ae5b519eececd10c~mv2.jpg

374 ms

a10c00_52e406ec34b44c53a438f8c7731fdd9e~mv2.jpg

a10c00_52e406ec34b44c53a438f8c7731fdd9e~mv2.jpg

509 ms

a10c00_94bd91f5e54141e6bd0d9aa30b81c25c~mv2.jpg

a10c00_94bd91f5e54141e6bd0d9aa30b81c25c~mv2.jpg

398 ms

a10c00_616e3dc3b55b4aa898de439160e80964~mv2.jpg

a10c00_616e3dc3b55b4aa898de439160e80964~mv2.jpg

526 ms

SS%2070%20Covewr.jpg

SS%2070%20Covewr.jpg

593 ms

a10c00_d87943272b274e2fa9d15f61907ed2aa~mv2.jpg

a10c00_d87943272b274e2fa9d15f61907ed2aa~mv2.jpg

528 ms

bundle.min.js

bundle.min.js

58 ms

125 ms

119 ms

122 ms

125 ms

125 ms

122 ms

155 ms

149 ms

156 ms

155 ms

154 ms

156 ms

deprecation-en.v5.html

deprecation-en.v5.html

7 ms

bolt-performance

bolt-performance

28 ms

deprecation-style.v5.css

deprecation-style.v5.css

9 ms

right-arrow.svg

right-arrow.svg

21 ms

WixMadeforDisplay_W_Bd.woff

WixMadeforDisplay_W_Bd.woff

5 ms

WixMadeforText_W_Bd.woff

WixMadeforText_W_Bd.woff

6 ms

WixMadeforText_W_Rg.woff

WixMadeforText_W_Rg.woff

4 ms

Accessibility Review

rnbws.org.uk accessibility score

98

Accessibility Issues

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

rnbws.org.uk best practices score

92

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

Page has valid source maps

SEO Factors

rnbws.org.uk 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 Rnbws.org.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 Rnbws.org.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

rnbws.org.uk

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