Tools & Wizards About Us
serota.co.uk screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

serota.co.uk

Library Furniture Specialists | Library Furniture for Schools and Universities | Bespoke Furniture Design and Manufacture | Library Lighting Specialis...

Page Load Speed

2.2 sec in total

First Response

191 ms

Resources Loaded

1.9 sec

Page Rendered

140 ms

serota.co.uk screenshot

About Website

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

Serota Library Furniture is one of the UK's library furniture specialists for schools, business and ecclesiastical establishments providing furniture, fittings and equipment as well as specialist ligh...

Visit serota.co.uk

Key Findings

We analyzed Serota.co.uk page load time and found that the first response time was 191 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

serota.co.uk performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value16.2 s

0/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value530 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0.072

96/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

serota.co.uk

191 ms

serota.co.uk

358 ms

css

32 ms

bootstrap.min.css

176 ms

essentials.css

433 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 84% of them (54 requests) were addressed to the original Serota.co.uk, 13% (8 requests) were made to Fonts.gstatic.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Serota.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 319.6 kB (9%)

Content Size

3.6 MB

After Optimization

3.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Serota.co.uk main page is 3.6 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. 60% of websites need less resources to load. Images take 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 22.0 kB

  • Original 27.4 kB
  • After minification 20.1 kB
  • After compression 5.4 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 7.3 kB, which is 27% 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 22.0 kB or 80% of the original size.

Image Optimization

-8%

Potential reduce by 266.1 kB

  • Original 3.4 MB
  • After minification 3.1 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. Serota images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 9.0 kB

  • Original 74.7 kB
  • After minification 74.7 kB
  • After compression 65.7 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 9.0 kB or 12% of the original size.

CSS Optimization

-16%

Potential reduce by 22.6 kB

  • Original 137.1 kB
  • After minification 137.1 kB
  • After compression 114.5 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. Serota.co.uk needs all CSS files to be minified and compressed as it can save up to 22.6 kB or 16% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (22%)

Requests Now

51

After Optimization

40

  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Serota. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

serota.co.uk

serota.co.uk

191 ms

serota.co.uk

serota.co.uk

358 ms

css

css

32 ms

bootstrap.min.css

bootstrap.min.css

176 ms

essentials.css

essentials.css

433 ms

layout.css

layout.css

344 ms

header-1.css

header-1.css

258 ms

green.css

green.css

259 ms

jquery-eu-cookie-law-popup.css

jquery-eu-cookie-law-popup.css

259 ms

logo_serota.png

logo_serota.png

427 ms

headington_school.jpg

headington_school.jpg

681 ms

britten_pears.jpg

britten_pears.jpg

676 ms

london_oratory.jpg

london_oratory.jpg

686 ms

rsm.jpg

rsm.jpg

702 ms

kennedys.jpg

kennedys.jpg

595 ms

eton.jpg

eton.jpg

682 ms

optometrics.jpg

optometrics.jpg

721 ms

stjohns.jpg

stjohns.jpg

854 ms

subcat_academia.jpg

subcat_academia.jpg

861 ms

subcat_ecclesiastical.jpg

subcat_ecclesiastical.jpg

785 ms

subcat_commerce.jpg

subcat_commerce.jpg

869 ms

copyright.js

copyright.js

786 ms

jquery-2.1.4.min.js

jquery-2.1.4.min.js

810 ms

scripts.js

scripts.js

879 ms

jquery-eu-cookie-law-popup.js

jquery-eu-cookie-law-popup.js

871 ms

js

js

56 ms

bp.jpg

bp.jpg

906 ms

brittenpears.jpg

brittenpears.jpg

940 ms

camlis.jpg

camlis.jpg

948 ms

chelmsford_cathedral.jpg

chelmsford_cathedral.jpg

956 ms

college_of_optometrists.jpg

college_of_optometrists.jpg

956 ms

eton.jpg

eton.jpg

970 ms

harrow.jpg

harrow.jpg

988 ms

headington.jpg

headington.jpg

1024 ms

kennedys.jpg

kennedys.jpg

1034 ms

kingsfund.jpg

kingsfund.jpg

1042 ms

law_society.jpg

law_society.jpg

1044 ms

london_oratory.jpg

london_oratory.jpg

1055 ms

oxford_university.jpg

oxford_university.jpg

1074 ms

rsm.jpg

rsm.jpg

1112 ms

rcm.jpg

rcm.jpg

951 ms

rhs.jpg

rhs.jpg

882 ms

shsk.jpg

shsk.jpg

880 ms

stjames.jpg

stjames.jpg

895 ms

stjohns.jpg

stjohns.jpg

824 ms

stephensonharwood.jpg

stephensonharwood.jpg

781 ms

tiffin.jpg

tiffin.jpg

696 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

18 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0B4gaVQ.woff

26 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

33 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

38 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

39 ms

S6u9w4BMUTPHh7USSwiPHw.woff

S6u9w4BMUTPHh7USSwiPHw.woff

40 ms

S6uyw4BMUTPHjx4wWA.woff

S6uyw4BMUTPHjx4wWA.woff

42 ms

S6u9w4BMUTPHh6UVSwiPHw.woff

S6u9w4BMUTPHh6UVSwiPHw.woff

39 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

643 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

557 ms

font-icons.woff

font-icons.woff

563 ms

university_of_london.jpg

university_of_london.jpg

574 ms

vwv.jpg

vwv.jpg

608 ms

wycombe_mosque.jpg

wycombe_mosque.jpg

600 ms

logo-footer.png

logo-footer.png

599 ms

footer_sprite.png

footer_sprite.png

536 ms

bootstrap.min.js

bootstrap.min.js

431 ms

Accessibility Review

serota.co.uk accessibility score

52

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-hidden="true"] elements contain focusable descendents

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.

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

serota.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

serota.co.uk SEO score

77

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

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 Serota.co.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 Serota.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

serota.co.uk

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