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jeffollerton.co.uk screenshot

Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 93% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

jeffollerton.co.uk

Prof. Jeff Ollerton – ecological scientist and author

Page Load Speed

1.2 sec in total

First Response

215 ms

Resources Loaded

690 ms

Page Rendered

248 ms

jeffollerton.co.uk screenshot

About Website

Welcome to jeffollerton.co.uk homepage info - get ready to check Jeff Ollerton best content right away, or after learning these important things about jeffollerton.co.uk

Pollinators such as bees, flies, birds, butterflies and moths provide vital pollination services to wild plants and to agricultural crops: Almost 90% of the approximately 352,000 species of flowering ...

Visit jeffollerton.co.uk

Key Findings

We analyzed Jeffollerton.co.uk page load time and found that the first response time was 215 ms and then it took 938 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

jeffollerton.co.uk performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

61/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

54/100

25%

SI (Speed Index)

Value2.7 s

97/100

10%

TBT (Total Blocking Time)

Value290 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

jeffollerton.co.uk

215 ms

wp-emoji-release.min.js

83 ms

89 ms

classic.css

103 ms

css

105 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 7% of them (2 requests) were addressed to the original Jeffollerton.co.uk, 15% (4 requests) were made to S2.wp.com and 15% (4 requests) were made to S1.wp.com. The less responsive or slowest element that took the longest time to load (314 ms) relates to the external source Jeffollerton.files.wordpress.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 46.9 kB (8%)

Content Size

591.9 kB

After Optimization

544.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jeffollerton.co.uk main page is 591.9 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 472.7 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 44.1 kB

  • Original 59.1 kB
  • After minification 56.6 kB
  • After compression 15.0 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. 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 44.1 kB or 75% of the original size.

Image Optimization

-0%

Potential reduce by 947 B

  • Original 472.7 kB
  • After minification 471.7 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. Jeff Ollerton images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 1.8 kB

  • Original 54.1 kB
  • After minification 54.1 kB
  • After compression 52.3 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

-2%

Potential reduce by 148 B

  • Original 6.0 kB
  • After minification 6.0 kB
  • After compression 5.9 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. Jeffollerton.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 16 (64%)

Requests Now

25

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jeff Ollerton. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jeffollerton.co.uk

jeffollerton.co.uk

215 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

83 ms

89 ms

classic.css

classic.css

103 ms

css

css

105 ms

85 ms

102 ms

global.css

global.css

84 ms

102 ms

gprofiles.js

gprofiles.js

48 ms

wpgroho.js

wpgroho.js

100 ms

100 ms

99 ms

w.js

w.js

46 ms

bilmur.min.js

bilmur.min.js

43 ms

cropped-stack-of-books.jpg

cropped-stack-of-books.jpg

25 ms

g.gif

g.gif

14 ms

hovercard.min.css

hovercard.min.css

6 ms

services.min.css

services.min.css

7 ms

remote-login.php

remote-login.php

72 ms

g.gif

g.gif

11 ms

g.gif

g.gif

19 ms

figure-2.2-higher-res.jpg

figure-2.2-higher-res.jpg

314 ms

cropped-tenerife-2008-080.jpg

cropped-tenerife-2008-080.jpg

34 ms

cropped-stack-of-books.jpg

cropped-stack-of-books.jpg

33 ms

actionbar.css

actionbar.css

2 ms

actionbar.js

actionbar.js

9 ms

Accessibility Review

jeffollerton.co.uk accessibility score

97

Accessibility Issues

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

jeffollerton.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

SEO Factors

jeffollerton.co.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

    EN

  • Encoding

    UTF-8

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

jeffollerton.co.uk

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