Tools & Wizards About Us
rncb.ac.uk screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    69% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

rncb.ac.uk

A specialist residential college for young people with visual impairment

Page Load Speed

32.2 sec in total

First Response

659 ms

Resources Loaded

21.1 sec

Page Rendered

10.4 sec

rncb.ac.uk screenshot

About Website

Visit rncb.ac.uk now to see the best up-to-date Rncb content and also check out these interesting facts you probably never knew about rncb.ac.uk

The UK's leading specialist residential college of further education and training for young people with a visual impairment. The College experience is more than vocational and academic qualifications....

Visit rncb.ac.uk

Key Findings

We analyzed Rncb.ac.uk page load time and found that the first response time was 659 ms and then it took 31.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

rncb.ac.uk performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value16.0 s

0/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0.046

99/100

15%

TTI (Time to Interactive)

Value8.6 s

37/100

10%

Network Requests Diagram

rncb.ac.uk

659 ms

www.rnc.ac.uk

370 ms

www.rnc.ac.uk

1426 ms

jquery-2.2.4.min.js

2764 ms

bootstrap.min.css

3101 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Rncb.ac.uk, 66% (35 requests) were made to Rnc.ac.uk and 8% (4 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (9.9 sec) relates to the external source Rnc.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 915.2 kB (3%)

Content Size

30.2 MB

After Optimization

29.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rncb.ac.uk main page is 30.2 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. Only a small number of websites need less resources to load. Images take 30.1 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 23.5 kB

  • Original 30.2 kB
  • After minification 23.2 kB
  • After compression 6.8 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 7.0 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 23.5 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 856.8 kB

  • Original 30.1 MB
  • After minification 29.2 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. Rncb images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 32.2 kB

  • Original 56.2 kB
  • After minification 56.2 kB
  • After compression 24.0 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 32.2 kB or 57% of the original size.

CSS Optimization

-45%

Potential reduce by 2.8 kB

  • Original 6.1 kB
  • After minification 6.1 kB
  • After compression 3.4 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. Rncb.ac.uk needs all CSS files to be minified and compressed as it can save up to 2.8 kB or 45% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (20%)

Requests Now

44

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rncb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

rncb.ac.uk

rncb.ac.uk

659 ms

www.rnc.ac.uk

www.rnc.ac.uk

370 ms

www.rnc.ac.uk

www.rnc.ac.uk

1426 ms

jquery-2.2.4.min.js

jquery-2.2.4.min.js

2764 ms

bootstrap.min.css

bootstrap.min.css

3101 ms

css2

css2

3690 ms

bootstrap.min.js

bootstrap.min.js

3689 ms

icofont.min.css

icofont.min.css

215 ms

style.css

style.css

2510 ms

js

js

3053 ms

plugin.js

plugin.js

2998 ms

WebResource.axd

WebResource.axd

3069 ms

element.js

element.js

3556 ms

js

js

4552 ms

popper.js

popper.js

3678 ms

Website%20homepage%20150%20Anniversary.jpg

Website%20homepage%20150%20Anniversary.jpg

7858 ms

rnc-logo.png

rnc-logo.png

1903 ms

tab1.png

tab1.png

4868 ms

tab2.png

tab2.png

7896 ms

tab3a.png

tab3a.png

7893 ms

circ.png

circ.png

8619 ms

events1.png.ashx

events1.png.ashx

7896 ms

SocialBg.png

SocialBg.png

9893 ms

20220726_125454.jpg

20220726_125454.jpg

8345 ms

bbs.png

bbs.png

7898 ms

blindcare.png

blindcare.png

8086 ms

cdi.png

cdi.png

7970 ms

cyberessentials_certification%20mark_colour%20.png

cyberessentials_certification%20mark_colour%20.png

7973 ms

fundraising-regulator-logo.png

fundraising-regulator-logo.png

7971 ms

goalball.png

goalball.png

7973 ms

offsted.png

offsted.png

8226 ms

tass.png

tass.png

8225 ms

thepoint.png

thepoint.png

8227 ms

VICTA_logo-300x300.jpg

VICTA_logo-300x300.jpg

8229 ms

03-2022%20Open%20Day%20pop%20up%20image.jpg

03-2022%20Open%20Day%20pop%20up%20image.jpg

8407 ms

facebook.png

facebook.png

8227 ms

instagram.png

instagram.png

8493 ms

linkedin.png

linkedin.png

8492 ms

tiktok.png

tiktok.png

8491 ms

twitter.png

twitter.png

8392 ms

youtube.png

youtube.png

8680 ms

js

js

990 ms

analytics.js

analytics.js

765 ms

mask.png

mask.png

6531 ms

Rectangle%20143@2x.png

Rectangle%20143@2x.png

6385 ms

Rectangle-143@2x.png

Rectangle-143@2x.png

9624 ms

Rectangle%20143@2xa.png

Rectangle%20143@2xa.png

7844 ms

P5sfzZCDf9_T_3cV7NCUECyoxNk37cxsBxDAVQMAaw.ttf

P5sfzZCDf9_T_3cV7NCUECyoxNk37cxsBxDAVQMAaw.ttf

5624 ms

P5sfzZCDf9_T_3cV7NCUECyoxNk3CstsBxDAVQMAaw.ttf

P5sfzZCDf9_T_3cV7NCUECyoxNk3CstsBxDAVQMAaw.ttf

6061 ms

collect

collect

4339 ms

collect

collect

2173 ms

js

js

1553 ms

widget.js

widget.js

2517 ms

Accessibility Review

rncb.ac.uk accessibility score

81

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

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

Image elements do not have [alt] attributes

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>).

Best Practices

rncb.ac.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

rncb.ac.uk SEO score

84

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

High

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    UTF-8

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

rncb.ac.uk

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