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rzss.org.uk screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    26% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

rzss.org.uk

The Royal Zoological Society of Scotland (RZSS) | RZSS

Page Load Speed

2.4 sec in total

First Response

240 ms

Resources Loaded

1.9 sec

Page Rendered

270 ms

rzss.org.uk screenshot

About Website

Welcome to rzss.org.uk homepage info - get ready to check RZSS best content for United Kingdom right away, or after learning these important things about rzss.org.uk

The Royal Zoological Society of Scotland was founded in 1909. Our mission is to inspire and excite our visitors with the wonder of living animals, and so to promote the conservation of threatened spec...

Visit rzss.org.uk

Key Findings

We analyzed Rzss.org.uk page load time and found that the first response time was 240 ms and then it took 2.1 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

rzss.org.uk performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value10.9 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value930 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.882

3/100

15%

TTI (Time to Interactive)

Value13.3 s

12/100

10%

Network Requests Diagram

rzss.org.uk

240 ms

www.rzss.org.uk

337 ms

css

40 ms

rzss2015_gbl.css

320 ms

font-awesome.min.css

34 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 90% of them (72 requests) were addressed to the original Rzss.org.uk, 4% (3 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (654 ms) belongs to the original domain Rzss.org.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 772.0 kB (73%)

Content Size

1.1 MB

After Optimization

290.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rzss.org.uk main page is 1.1 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. CSS take 455.2 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 63.0 kB

  • Original 71.7 kB
  • After minification 39.6 kB
  • After compression 8.7 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. This page needs HTML code to be minified as it can gain 32.0 kB, which is 45% 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 63.0 kB or 88% of the original size.

Image Optimization

-16%

Potential reduce by 18.0 kB

  • Original 114.5 kB
  • After minification 96.5 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, RZSS needs image optimization as it can save up to 18.0 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 295.5 kB

  • Original 421.4 kB
  • After minification 376.2 kB
  • After compression 125.8 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 295.5 kB or 70% of the original size.

CSS Optimization

-87%

Potential reduce by 395.4 kB

  • Original 455.2 kB
  • After minification 367.5 kB
  • After compression 59.7 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. Rzss.org.uk needs all CSS files to be minified and compressed as it can save up to 395.4 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (16%)

Requests Now

73

After Optimization

61

  • Images
  • JavaScript
  • CSS

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RZSS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rzss.org.uk

rzss.org.uk

240 ms

www.rzss.org.uk

www.rzss.org.uk

337 ms

css

css

40 ms

rzss2015_gbl.css

rzss2015_gbl.css

320 ms

font-awesome.min.css

font-awesome.min.css

34 ms

TextEditorStyles.css

TextEditorStyles.css

153 ms

vendor.js

vendor.js

349 ms

tabs.js

tabs.js

153 ms

jquery.carouFredSel-6.2.1-packed.js

jquery.carouFredSel-6.2.1-packed.js

241 ms

rzss15_gbl.js

rzss15_gbl.js

380 ms

rzss15_megaSlider.js

rzss15_megaSlider.js

227 ms

flickity.css

flickity.css

229 ms

flickity.pkgd.min.js

flickity.pkgd.min.js

380 ms

rzss15_conservation.js

rzss15_conservation.js

306 ms

site.js

site.js

272 ms

analytics.js

analytics.js

126 ms

rzss_all_blue.png

rzss_all_blue.png

111 ms

link-break.png

link-break.png

110 ms

dropdown.png

dropdown.png

112 ms

mansion_house_web_sm.jpg

mansion_house_web_sm.jpg

109 ms

15_05_14_mou_chairs_and_ceo_1_kp_megamenu.jpg

15_05_14_mou_chairs_and_ceo_1_kp_megamenu.jpg

161 ms

giant_pandas_megamenu.jpg

giant_pandas_megamenu.jpg

111 ms

banner_wg_breeding_megamenu.jpg

banner_wg_breeding_megamenu.jpg

174 ms

budongo_megamenu.jpg

budongo_megamenu.jpg

171 ms

conservation_map.jpg

conservation_map.jpg

187 ms

simon_girling_2_megamenu.jpg

simon_girling_2_megamenu.jpg

190 ms

scottish_wildcat_action_megamenu.jpg

scottish_wildcat_action_megamenu.jpg

184 ms

red_panda_megamenu.jpg

red_panda_megamenu.jpg

247 ms

15_09_13_snowleopard_female_animesh_kp_08_megamenu.jpg

15_09_13_snowleopard_female_animesh_kp_08_megamenu.jpg

257 ms

amur_tiger_banner_megamenu.jpg

amur_tiger_banner_megamenu.jpg

259 ms

page_banner_global_classroom_megamenu.jpg

page_banner_global_classroom_megamenu.jpg

275 ms

schools_brochure_megamenu.jpg

schools_brochure_megamenu.jpg

280 ms

wild-about-scotland-bus-21_megamenu.jpg

wild-about-scotland-bus-21_megamenu.jpg

284 ms

support_membership_1_megamenu.jpg

support_membership_1_megamenu.jpg

324 ms

ppl_chq_megamenu.jpg

ppl_chq_megamenu.jpg

336 ms

rzss_all_blue.png

rzss_all_blue.png

334 ms

snowleopard_cameratrap2.jpg

snowleopard_cameratrap2.jpg

536 ms

43gh0st.png

43gh0st.png

385 ms

16_01_28_recordpupils_10000_04_chriswattweb.jpg

16_01_28_recordpupils_10000_04_chriswattweb.jpg

377 ms

psd-photography-edinburgh-zoo-074-internet_sm.jpg

psd-photography-edinburgh-zoo-074-internet_sm.jpg

423 ms

zoo-science-nightsweb.jpg

zoo-science-nightsweb.jpg

422 ms

membership_familyweb.jpg

membership_familyweb.jpg

422 ms

15_12_18_tigers_xmaspudding_arweb.jpg

15_12_18_tigers_xmaspudding_arweb.jpg

547 ms

gemma_blog_camels.jpg

gemma_blog_camels.jpg

477 ms

15_09_13_snowleopard_female_animesh_kp_08_close-up_sml.jpg

15_09_13_snowleopard_female_animesh_kp_08_close-up_sml.jpg

494 ms

european_elk_banner.jpg

european_elk_banner.jpg

501 ms

red_panda.jpg

red_panda.jpg

510 ms

reticulatus2_west-malaysia_auliyaweb.jpg

reticulatus2_west-malaysia_auliyaweb.jpg

654 ms

dr-ross-mcewing-sml.jpg

dr-ross-mcewing-sml.jpg

584 ms

dec_15_camila_releasing_anteater.jpg

dec_15_camila_releasing_anteater.jpg

594 ms

budongo-uganda.jpg

budongo-uganda.jpg

598 ms

arnauddesbiez2.jpg

arnauddesbiez2.jpg

519 ms

footer-animals.png

footer-animals.png

530 ms

rzss.png

rzss.png

557 ms

hwp_logo.png

hwp_logo.png

565 ms

ez_logo.png

ez_logo.png

570 ms

LeFlHvsZjXu2c3ZRgBq9nD8E0i7KZn-EPnyo3HZu7kw.woff

LeFlHvsZjXu2c3ZRgBq9nD8E0i7KZn-EPnyo3HZu7kw.woff

21 ms

PIbvSEyHEdL91QLOQRnZ13hCUOGz7vYGh680lGh-uXM.woff

PIbvSEyHEdL91QLOQRnZ13hCUOGz7vYGh680lGh-uXM.woff

20 ms

eCpfeMZI7q4jLksXVRWPQxsxEYwM7FgeyaSgU71cLG0.woff

eCpfeMZI7q4jLksXVRWPQxsxEYwM7FgeyaSgU71cLG0.woff

21 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

20 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

597 ms

collect

collect

16 ms

cons_logo.png

cons_logo.png

566 ms

sprite.png

sprite.png

568 ms

mansion_house_web_sm.jpg

mansion_house_web_sm.jpg

571 ms

15_05_14_mou_chairs_and_ceo_1_kp_megamenu.jpg

15_05_14_mou_chairs_and_ceo_1_kp_megamenu.jpg

567 ms

giant_pandas_megamenu.jpg

giant_pandas_megamenu.jpg

569 ms

banner_wg_breeding_megamenu.jpg

banner_wg_breeding_megamenu.jpg

600 ms

budongo_megamenu.jpg

budongo_megamenu.jpg

552 ms

conservation_map.jpg

conservation_map.jpg

562 ms

simon_girling_2_megamenu.jpg

simon_girling_2_megamenu.jpg

562 ms

scottish_wildcat_action_megamenu.jpg

scottish_wildcat_action_megamenu.jpg

554 ms

red_panda_megamenu.jpg

red_panda_megamenu.jpg

553 ms

15_09_13_snowleopard_female_animesh_kp_08_megamenu.jpg

15_09_13_snowleopard_female_animesh_kp_08_megamenu.jpg

586 ms

amur_tiger_banner_megamenu.jpg

amur_tiger_banner_megamenu.jpg

557 ms

page_banner_global_classroom_megamenu.jpg

page_banner_global_classroom_megamenu.jpg

566 ms

schools_brochure_megamenu.jpg

schools_brochure_megamenu.jpg

562 ms

wild-about-scotland-bus-21_megamenu.jpg

wild-about-scotland-bus-21_megamenu.jpg

530 ms

support_membership_1_megamenu.jpg

support_membership_1_megamenu.jpg

521 ms

ppl_chq_megamenu.jpg

ppl_chq_megamenu.jpg

530 ms

Accessibility Review

rzss.org.uk accessibility score

66

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

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

High

Heading elements are not in a sequentially-descending order

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

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

rzss.org.uk 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

rzss.org.uk 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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rzss.org.uk 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 Rzss.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

rzss.org.uk

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