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const.co.uk screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

const.co.uk

Constantine: Fine art logistics for private collectors, museums & galleries

Page Load Speed

3 sec in total

First Response

113 ms

Resources Loaded

2.5 sec

Page Rendered

398 ms

const.co.uk screenshot

About Website

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

Since 1885, Constantine provide fine art logistics and storage for private collectors, museums and galleries worldwide.

Visit const.co.uk

Key Findings

We analyzed Const.co.uk page load time and found that the first response time was 113 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

const.co.uk performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value16.5 s

0/100

10%

TBT (Total Blocking Time)

Value2,210 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value23.5 s

1/100

10%

Network Requests Diagram

const.co.uk

113 ms

const.co.uk

133 ms

www.const.co.uk

23 ms

www.const.co.uk

412 ms

bundle.css

26 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 47% of them (36 requests) were addressed to the original Const.co.uk, 10% (8 requests) were made to Google.com and 9% (7 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (684 ms) relates to the external source Registry.blockmarktech.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 426.8 kB (17%)

Content Size

2.6 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Const.co.uk main page is 2.6 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 98.4 kB

  • Original 108.9 kB
  • After minification 62.6 kB
  • After compression 10.6 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. This page needs HTML code to be minified as it can gain 46.3 kB, which is 43% 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 98.4 kB or 90% of the original size.

Image Optimization

-4%

Potential reduce by 61.9 kB

  • Original 1.4 MB
  • After minification 1.3 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. Const images are well optimized though.

JavaScript Optimization

-29%

Potential reduce by 265.7 kB

  • Original 923.8 kB
  • After minification 923.7 kB
  • After compression 658.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 265.7 kB or 29% of the original size.

CSS Optimization

-1%

Potential reduce by 814 B

  • Original 137.5 kB
  • After minification 137.5 kB
  • After compression 136.7 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. Const.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 38 (58%)

Requests Now

66

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Const. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

const.co.uk

const.co.uk

113 ms

const.co.uk

const.co.uk

133 ms

www.const.co.uk

www.const.co.uk

23 ms

www.const.co.uk

www.const.co.uk

412 ms

bundle.css

bundle.css

26 ms

layout.css

layout.css

31 ms

sbi-styles.min.css

sbi-styles.min.css

45 ms

sb-instagram.min.css

sb-instagram.min.css

41 ms

jquery-3.7.0.min.js

jquery-3.7.0.min.js

24 ms

c8d7a256a63ceb3aa94762ba8c0cd56d.js

c8d7a256a63ceb3aa94762ba8c0cd56d.js

457 ms

api.js

api.js

40 ms

js

js

61 ms

email-decode.min.js

email-decode.min.js

32 ms

sbi-scripts.min.js

sbi-scripts.min.js

156 ms

bundle.js

bundle.js

176 ms

site.min.js

site.min.js

302 ms

js

js

103 ms

gtm.js

gtm.js

121 ms

sbi-sprite.png

sbi-sprite.png

112 ms

Ft3ITCr8rDw

Ft3ITCr8rDw

259 ms

brand--gold.svg

brand--gold.svg

48 ms

ui--email--gold.svg

ui--email--gold.svg

94 ms

ui--phone--gold.svg

ui--phone--gold.svg

54 ms

royal-warrant.svg

royal-warrant.svg

96 ms

popup-icon.png

popup-icon.png

54 ms

social--twitter--white.svg

social--twitter--white.svg

94 ms

social--linkedin--white.svg

social--linkedin--white.svg

103 ms

social--instagram--white.svg

social--instagram--white.svg

105 ms

social--facebook--white.svg

social--facebook--white.svg

104 ms

recaptcha__en.js

recaptcha__en.js

101 ms

TypeType%20-%20TTNorms-Regular.woff

TypeType%20-%20TTNorms-Regular.woff

209 ms

TypeType%20-%20TT%20Norms%20Bold.woff

TypeType%20-%20TT%20Norms%20Bold.woff

210 ms

Buenard-Regular.woff

Buenard-Regular.woff

209 ms

684 ms

ui--arrow--up--gold.svg

ui--arrow--up--gold.svg

53 ms

brand--white.svg

brand--white.svg

53 ms

logo--teg.svg

logo--teg.svg

68 ms

logo--artim.svg

logo--artim.svg

67 ms

logo--museums.png

logo--museums.png

72 ms

logo--ukreg.png

logo--ukreg.png

70 ms

analytics.js

analytics.js

144 ms

anchor

anchor

106 ms

IWM_2018_073_0010-2000x0-c-center.jpg

IWM_2018_073_0010-2000x0-c-center.jpg

77 ms

Optimized-V9-2000x0-c-center.jpg

Optimized-V9-2000x0-c-center.jpg

148 ms

Optimized-V1-scaled-2000x0-c-center.jpg

Optimized-V1-scaled-2000x0-c-center.jpg

168 ms

ART-STORE-2-23-Edit-HI-RES-scaled-2000x0-c-center.jpg

ART-STORE-2-23-Edit-HI-RES-scaled-2000x0-c-center.jpg

207 ms

js

js

81 ms

189 ms

loader.js

loader.js

38 ms

www-player.css

www-player.css

36 ms

www-embed-player.js

www-embed-player.js

124 ms

base.js

base.js

185 ms

main.js

main.js

49 ms

collect

collect

30 ms

styles__ltr.css

styles__ltr.css

25 ms

recaptcha__en.js

recaptcha__en.js

114 ms

call-tracking_9.js

call-tracking_9.js

148 ms

305 ms

MiNarUAOgmcBTtb-B9dqJsIEHzGnODmmbX7rqJecvmc.js

MiNarUAOgmcBTtb-B9dqJsIEHzGnODmmbX7rqJecvmc.js

257 ms

webworker.js

webworker.js

260 ms

logo_48.png

logo_48.png

252 ms

ad_status.js

ad_status.js

180 ms

s9i9Iyk4Y_s1LD6aqz2X9kjqPppJUVpoTsMZDucYENo.js

s9i9Iyk4Y_s1LD6aqz2X9kjqPppJUVpoTsMZDucYENo.js

114 ms

embed.js

embed.js

74 ms

56 ms

id

id

47 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

181 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

183 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

185 ms

recaptcha__en.js

recaptcha__en.js

136 ms

widget_2.css

widget_2.css

145 ms

133 ms

wcm

wcm

20 ms

Create

Create

31 ms

image_2023-03-28_111553.8898430_600x600_q85_padding_upscale.png

image_2023-03-28_111553.8898430_600x600_q85_padding_upscale.png

409 ms

BM-White-Tooltip.png

BM-White-Tooltip.png

11 ms

GenerateIT

GenerateIT

14 ms

Accessibility Review

const.co.uk accessibility score

68

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

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

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

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

const.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

High

Page has valid source maps

SEO Factors

const.co.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

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

    N/A

  • Encoding

    UTF-8

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

const.co.uk

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