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see-science.co.uk screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

see-science.co.uk

See Science: educational and enrichment consultancy in Wales

Page Load Speed

2.7 sec in total

First Response

257 ms

Resources Loaded

2.2 sec

Page Rendered

261 ms

see-science.co.uk screenshot

About Website

Click here to check amazing See Science content for United Kingdom. Otherwise, check out these important facts you probably never knew about see-science.co.uk

See Science offers a range of products and services that support the teaching and learning of STEM subjects in Wales within a real world context

Visit see-science.co.uk

Key Findings

We analyzed See-science.co.uk page load time and found that the first response time was 257 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

see-science.co.uk performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value10.5 s

0/100

25%

SI (Speed Index)

Value5.9 s

47/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.146

77/100

15%

TTI (Time to Interactive)

Value7.9 s

43/100

10%

Network Requests Diagram

see-science.co.uk

257 ms

see-science.co.uk

574 ms

ngp3hzf.css

132 ms

consolidated.css

96 ms

stacks.css

181 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 52% of them (43 requests) were addressed to the original See-science.co.uk, 44% (36 requests) were made to Use.typekit.net and 2% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (716 ms) belongs to the original domain See-science.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 288.0 kB (12%)

Content Size

2.3 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of See-science.co.uk main page is 2.3 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. 70% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 171.9 kB

  • Original 186.6 kB
  • After minification 180.5 kB
  • After compression 14.7 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. 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 171.9 kB or 92% of the original size.

Image Optimization

-5%

Potential reduce by 93.3 kB

  • Original 1.9 MB
  • After minification 1.8 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. See Science images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 13.0 kB

  • Original 137.1 kB
  • After minification 137.1 kB
  • After compression 124.1 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

-14%

Potential reduce by 9.8 kB

  • Original 69.9 kB
  • After minification 69.9 kB
  • After compression 60.1 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. See-science.co.uk needs all CSS files to be minified and compressed as it can save up to 9.8 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (32%)

Requests Now

44

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of See Science. 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 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

see-science.co.uk

see-science.co.uk

257 ms

see-science.co.uk

see-science.co.uk

574 ms

ngp3hzf.css

ngp3hzf.css

132 ms

consolidated.css

consolidated.css

96 ms

stacks.css

stacks.css

181 ms

stacks_page_page2.css

stacks_page_page2.css

439 ms

jquery-2.2.4.min.js

jquery-2.2.4.min.js

367 ms

font-awesome.min.css

font-awesome.min.css

251 ms

stacks_page_page2.js

stacks_page_page2.js

464 ms

ngp3hzf.js

ngp3hzf.js

411 ms

total-cms.css

total-cms.css

275 ms

total-cms.js

total-cms.js

280 ms

font-awesome.min.css

font-awesome.min.css

33 ms

javascript.js

javascript.js

336 ms

tether.min.js

tether.min.js

371 ms

bootstrap.min.js

bootstrap.min.js

369 ms

tooltips.js

tooltips.js

461 ms

p.css

p.css

14 ms

NewsImage1.jpg

NewsImage1.jpg

568 ms

Molecules-background.png

Molecules-background.png

162 ms

image_stack_img-10-FAB.png

image_stack_img-10-FAB.png

160 ms

image_stack_img-1862.jpg

image_stack_img-1862.jpg

393 ms

image_stack_img-2376.png

image_stack_img-2376.png

391 ms

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image_stack_img-3761.png

395 ms

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image_stack_img-3768.png

161 ms

image_stack_img-3769.png

image_stack_img-3769.png

392 ms

image_stack_img-3777.png

image_stack_img-3777.png

601 ms

image_stack_img-3783.png

image_stack_img-3783.png

392 ms

image_stack_img-3781.png

image_stack_img-3781.png

452 ms

image_stack_img-3966.png

image_stack_img-3966.png

524 ms

image_stack_img-2535.png

image_stack_img-2535.png

452 ms

image_stack_img-3752.png

image_stack_img-3752.png

452 ms

image_stack_img-2733.jpg

image_stack_img-2733.jpg

453 ms

image_stack_img-2738.png

image_stack_img-2738.png

633 ms

image_stack_img-3792.png

image_stack_img-3792.png

691 ms

image_stack_img-3798.png

image_stack_img-3798.png

568 ms

image_stack_img-3796.png

image_stack_img-3796.png

566 ms

image_stack_img-3804.png

image_stack_img-3804.png

668 ms

image_stack_img-3810.png

image_stack_img-3810.png

646 ms

image_stack_img-3808.png

image_stack_img-3808.png

657 ms

NewsImage2.jpg

NewsImage2.jpg

632 ms

NewsImage3.jpg

NewsImage3.jpg

633 ms

NewsImage4.jpg

NewsImage4.jpg

716 ms

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banner_image-6-FAB.png

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525 ms

2E3555C6-ACDB-47CA-8094-FC2B899D19E1.jpg

2E3555C6-ACDB-47CA-8094-FC2B899D19E1.jpg

461 ms

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481 ms

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136 ms

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608 ms

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Accessibility Review

see-science.co.uk accessibility score

78

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-*] attributes do not match their roles

High

button, link, and menuitem elements do not have accessible names.

High

[aria-*] attributes do not have valid values

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

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

see-science.co.uk best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

see-science.co.uk SEO score

75

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 See-science.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 See-science.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

see-science.co.uk

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