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Report Summary

About Website

Welcome to scienceboffins.co.uk homepage info - get ready to check Science Boffins best content right away, or after learning these important things about scienceboffins.co.uk

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name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

48/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

65/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value850 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value12.8 s

13/100

10%

scienceboffins.co.uk

203 ms

www.scienceboffins.co.uk

566 ms

js

69 ms

bat.js

61 ms

fbevents.js

20 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 72% of them (26 requests) were addressed to the original Scienceboffins.co.uk, 11% (4 requests) were made to Bat.bing.com and 8% (3 requests) were made to Cdn.useproof.com. The less responsive or slowest element that took the longest time to load (566 ms) belongs to the original domain Scienceboffins.co.uk.

Content Size

1.5 MB

After Optimization

537.8 kB

In fact, the total size of Scienceboffins.co.uk main page is 1.5 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. 50% of websites need less resources to load. Javascripts take 701.0 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 498.1 kB

Original 551.7 kB
After minification 551.5 kB
After compression 53.6 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 498.1 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 95 B

Original 203.2 kB
After minification 203.1 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. Science Boffins images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 432.8 kB

Original 701.0 kB
After minification 701.0 kB
After compression 268.2 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 432.8 kB or 62% of the original size.

CSS Optimization

-1%

Potential reduce by 75 B

Original 12.9 kB
After minification 12.9 kB
After compression 12.9 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. Scienceboffins.co.uk has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Boffins. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

<frame> or <iframe> elements do not have a title

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

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 Scienceboffins.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 Scienceboffins.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

scienceboffins.co.uk

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Science Party - Discover the UK's Original Science Party Now

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)