Tools & Wizards About Us
johncribb.co.uk screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 79% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

johncribb.co.uk

Home - John Cribb & Sons Ltd, UK Electrical Distributors, Dorset, Hampshire, Wiltshire, Somerset & the Isle of Wight.

Page Load Speed

3.5 sec in total

First Response

210 ms

Resources Loaded

3 sec

Page Rendered

308 ms

johncribb.co.uk screenshot

About Website

Click here to check amazing John Cribb content for United Kingdom. Otherwise, check out these important facts you probably never knew about johncribb.co.uk

An electrical distributor based in England, independent family owned and operated for over 30 years, selling in-store and online throughout the U.K. and Europe. We carry a wide range of equipment for ...

Visit johncribb.co.uk

Key Findings

We analyzed Johncribb.co.uk page load time and found that the first response time was 210 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

johncribb.co.uk performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0.249

50/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

johncribb.co.uk

210 ms

www.johncribb.co.uk

800 ms

popup.css

94 ms

prototype.js

276 ms

jquery-1.10.2.min.js

402 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 84% of them (70 requests) were addressed to the original Johncribb.co.uk, 6% (5 requests) were made to Fonts.gstatic.com and 5% (4 requests) were made to Securitymetrics.com. The less responsive or slowest element that took the longest time to load (800 ms) belongs to the original domain Johncribb.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 334.2 kB (23%)

Content Size

1.5 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Johncribb.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. 60% of websites need less resources to load. Images take 990.4 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 126.9 kB

  • Original 143.3 kB
  • After minification 114.3 kB
  • After compression 16.4 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 29.0 kB, which is 20% 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 126.9 kB or 89% of the original size.

Image Optimization

-5%

Potential reduce by 51.4 kB

  • Original 990.4 kB
  • After minification 939.0 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. John Cribb images are well optimized though.

JavaScript Optimization

-47%

Potential reduce by 136.7 kB

  • Original 288.2 kB
  • After minification 252.4 kB
  • After compression 151.5 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 136.7 kB or 47% of the original size.

CSS Optimization

-40%

Potential reduce by 19.1 kB

  • Original 47.5 kB
  • After minification 47.5 kB
  • After compression 28.4 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. Johncribb.co.uk needs all CSS files to be minified and compressed as it can save up to 19.1 kB or 40% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (43%)

Requests Now

75

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of John Cribb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

johncribb.co.uk

johncribb.co.uk

210 ms

www.johncribb.co.uk

www.johncribb.co.uk

800 ms

popup.css

popup.css

94 ms

prototype.js

prototype.js

276 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

402 ms

noconflict.js

noconflict.js

269 ms

ccard.js

ccard.js

268 ms

validation.js

validation.js

272 ms

builder.js

builder.js

272 ms

effects.js

effects.js

363 ms

dragdrop.js

dragdrop.js

362 ms

controls.js

controls.js

365 ms

slider.js

slider.js

365 ms

js.js

js.js

369 ms

form.js

form.js

456 ms

translate.js

translate.js

455 ms

cookies.js

cookies.js

458 ms

honeyspam.js

honeyspam.js

459 ms

lightbox.js

lightbox.js

462 ms

storepickup.js

storepickup.js

494 ms

modernizr.custom.min.js

modernizr.custom.min.js

547 ms

selectivizr.js

selectivizr.js

549 ms

matchMedia.js

matchMedia.js

552 ms

matchMedia.addListener.js

matchMedia.addListener.js

552 ms

enquire.js

enquire.js

555 ms

app.js

app.js

586 ms

imagesloaded.js

imagesloaded.js

639 ms

minicart.js

minicart.js

640 ms

campaignCatcher.js

campaignCatcher.js

644 ms

css

css

41 ms

styles.css

styles.css

739 ms

511512bf61cff23a3428103df.js

511512bf61cff23a3428103df.js

85 ms

element.js

element.js

116 ms

jquery-1.7.min.js

jquery-1.7.min.js

648 ms

jquery.flexslider.js

jquery.flexslider.js

676 ms

flexslider.css

flexslider.css

729 ms

6cd02ec3912b2e7eefd1fb9cf.js

6cd02ec3912b2e7eefd1fb9cf.js

41 ms

Credit_Card_Safe_light.png

Credit_Card_Safe_light.png

82 ms

PCI_DSS_Validated_light.png

PCI_DSS_Validated_light.png

94 ms

John-Cribb%20Logo-Web.png

John-Cribb%20Logo-Web.png

117 ms

free-click-and-collect-20230104.png

free-click-and-collect-20230104.png

204 ms

quantum-rf-johncribb.jpg

quantum-rf-johncribb.jpg

291 ms

lot-20-compliant-heaters_1102x509.jpg

lot-20-compliant-heaters_1102x509.jpg

201 ms

aircon-and-cooling-hero_3.jpg

aircon-and-cooling-hero_3.jpg

291 ms

led-downlight-hero_1102x509_20200424.jpg

led-downlight-hero_1102x509_20200424.jpg

289 ms

led-panels_1102x509_20200424.jpg

led-panels_1102x509_20200424.jpg

288 ms

mirror-demister-hero_1102x509_20200424.jpg

mirror-demister-hero_1102x509_20200424.jpg

301 ms

underfloor-heating-hero_1102x509_1.jpg

underfloor-heating-hero_1102x509_1.jpg

470 ms

consumer-units-amendment-3-hero_1102x509.jpg

consumer-units-amendment-3-hero_1102x509.jpg

468 ms

wylex_wses100-2_100a_2_pole_2_rcd_1.jpg

wylex_wses100-2_100a_2_pole_2_rcd_1.jpg

382 ms

bpro-rd21ms-cal-open.png

bpro-rd21ms-cal-open.png

384 ms

bpro-rd21ms-cal-open_1.png

bpro-rd21ms-cal-open_1.png

384 ms

bpro-rd21ms-cal-open_1_1.png

bpro-rd21ms-cal-open_1_1.png

390 ms

img_5502.jpg

img_5502.jpg

477 ms

img_5502_1.jpg

img_5502_1.jpg

478 ms

img_5502_1_1.jpg

img_5502_1_1.jpg

475 ms

img_5502_1_1_1.jpg

img_5502_1_1_1.jpg

483 ms

img_5502_1_1_1_1.jpg

img_5502_1_1_1_1.jpg

561 ms

img_5502_1_1_1_1_1.jpg

img_5502_1_1_1_1_1.jpg

563 ms

doncaster-cables-ev-ultra-3-core-6-0mm-cat5-01.jpg

doncaster-cables-ev-ultra-3-core-6-0mm-cat5-01.jpg

572 ms

gu4501wpc.jpg

gu4501wpc.jpg

570 ms

gu4521wbc.jpg

gu4521wbc.jpg

572 ms

gu4521wpc.jpg

gu4521wpc.jpg

576 ms

gu5510wbc.jpg

gu5510wbc.jpg

655 ms

trk501w.jpg

trk501w.jpg

656 ms

trk501w_1.jpg

trk501w_1.jpg

666 ms

k5208whi.jpg

k5208whi.jpg

668 ms

wallfan-image.jpg

wallfan-image.jpg

667 ms

0001028_1.jpg

0001028_1.jpg

670 ms

d-ent-audio1.jpg

d-ent-audio1.jpg

749 ms

led-panel-45w.png

led-panel-45w.png

750 ms

icon_sprite.png

icon_sprite.png

726 ms

va9E4kDNxMZdWfMOD5Vvl4jO.ttf

va9E4kDNxMZdWfMOD5Vvl4jO.ttf

142 ms

va9B4kDNxMZdWfMOD5VnZKveRhf_.ttf

va9B4kDNxMZdWfMOD5VnZKveRhf_.ttf

157 ms

va9B4kDNxMZdWfMOD5VnPKreRhf_.ttf

va9B4kDNxMZdWfMOD5VnPKreRhf_.ttf

186 ms

va9B4kDNxMZdWfMOD5VnSKzeRhf_.ttf

va9B4kDNxMZdWfMOD5VnSKzeRhf_.ttf

194 ms

va9B4kDNxMZdWfMOD5VnLK3eRhf_.ttf

va9B4kDNxMZdWfMOD5VnLK3eRhf_.ttf

195 ms

opc-ajax-loader.gif

opc-ajax-loader.gif

674 ms

Credit_Card_Safe_light.png

Credit_Card_Safe_light.png

104 ms

PCI_DSS_Validated_light.png

PCI_DSS_Validated_light.png

104 ms

social_icons.png

social_icons.png

651 ms

demo-logo.png

demo-logo.png

655 ms

bg_direction_nav.png

bg_direction_nav.png

650 ms

Accessibility Review

johncribb.co.uk accessibility score

92

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.

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

johncribb.co.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

SEO Factors

johncribb.co.uk SEO score

90

Search Engine Optimization Advices

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 Johncribb.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 Johncribb.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

johncribb.co.uk

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