Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

colchester-zoo.co.uk

Welcome to Colchester Zoo | A Wild Family Day Out In Essex

Page Load Speed

8 sec in total

First Response

251 ms

Resources Loaded

6.9 sec

Page Rendered

787 ms

colchester-zoo.co.uk screenshot

About Website

Visit colchester-zoo.co.uk now to see the best up-to-date Colchester Zoo content and also check out these interesting facts you probably never knew about colchester-zoo.co.uk

Release your wild side! Discover 160 animal species in 60 acres of parkland & lakes at Colchester Zoo. Visit us today for an all-round great experience.

Visit colchester-zoo.co.uk

Key Findings

We analyzed Colchester-zoo.co.uk page load time and found that the first response time was 251 ms and then it took 7.7 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

colchester-zoo.co.uk performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value31.5 s

0/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value1,460 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.017

100/100

15%

TTI (Time to Interactive)

Value23.7 s

1/100

10%

Network Requests Diagram

colchester-zoo.co.uk

251 ms

www.colchester-zoo.com

1915 ms

modal.css

163 ms

k2.css

330 ms

maximenuckmobile.css

164 ms

Our browser made a total of 188 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Colchester-zoo.co.uk, 97% (182 requests) were made to Colchester-zoo.com and 1% (2 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Colchester-zoo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.0 MB (23%)

Content Size

8.7 MB

After Optimization

6.6 MB

In fact, the total size of Colchester-zoo.co.uk main page is 8.7 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 6.9 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 205.3 kB

  • Original 233.4 kB
  • After minification 180.7 kB
  • After compression 28.0 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 52.7 kB, which is 23% 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 205.3 kB or 88% of the original size.

Image Optimization

-9%

Potential reduce by 647.3 kB

  • Original 6.9 MB
  • After minification 6.2 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. Colchester Zoo images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 727.9 kB

  • Original 1.0 MB
  • After minification 993.3 kB
  • After compression 306.6 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 727.9 kB or 70% of the original size.

CSS Optimization

-88%

Potential reduce by 451.2 kB

  • Original 511.8 kB
  • After minification 325.4 kB
  • After compression 60.6 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. Colchester-zoo.co.uk needs all CSS files to be minified and compressed as it can save up to 451.2 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 82 (46%)

Requests Now

178

After Optimization

96

The browser has sent 178 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Colchester Zoo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 54 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

colchester-zoo.co.uk accessibility score

88

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

ARIA input fields do not have accessible names

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

Heading elements are not in a sequentially-descending order

Best Practices

colchester-zoo.co.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

colchester-zoo.co.uk SEO score

82

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 Colchester-zoo.co.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 Colchester-zoo.co.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

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