Tools & Wizards About Us
lewvac.co.uk screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

lewvac.co.uk

LewVac Components Ltd | Manufacturer of Vacuum Components

Page Load Speed

4.6 sec in total

First Response

286 ms

Resources Loaded

4.2 sec

Page Rendered

142 ms

lewvac.co.uk screenshot

About Website

Visit lewvac.co.uk now to see the best up-to-date Lew Vac content for United Kingdom and also check out these interesting facts you probably never knew about lewvac.co.uk

Highly reliable manufacturer and supplier of UHV and HV vacuum components based in the UK. We supply solutions for the global vacuum technology market.

Visit lewvac.co.uk

Key Findings

We analyzed Lewvac.co.uk page load time and found that the first response time was 286 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

lewvac.co.uk performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.7 s

2/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value8.8 s

16/100

10%

TBT (Total Blocking Time)

Value1,460 ms

15/100

30%

CLS (Cumulative Layout Shift)

Value0.139

79/100

15%

TTI (Time to Interactive)

Value10.4 s

24/100

10%

Network Requests Diagram

lewvac.co.uk

286 ms

www.lewvac.co.uk

646 ms

analytics.js

48 ms

wp-emoji-release.min.js

220 ms

Defaults.css

287 ms

Our browser made a total of 86 requests to load all elements on the main page. We found that 85% of them (73 requests) were addressed to the original Lewvac.co.uk, 6% (5 requests) were made to Fonts.gstatic.com and 3% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Lewvac.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 306.2 kB (28%)

Content Size

1.1 MB

After Optimization

775.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lewvac.co.uk main page is 1.1 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. HTML takes 311.7 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 275.5 kB

  • Original 311.7 kB
  • After minification 304.7 kB
  • After compression 36.3 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 275.5 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 721 B

  • Original 225.0 kB
  • After minification 224.3 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. Lew Vac images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 9.1 kB

  • Original 256.7 kB
  • After minification 256.7 kB
  • After compression 247.6 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

-7%

Potential reduce by 20.9 kB

  • Original 288.0 kB
  • After minification 287.4 kB
  • After compression 267.2 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. Lewvac.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 61 (80%)

Requests Now

76

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lew Vac. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 27 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lewvac.co.uk

lewvac.co.uk

286 ms

www.lewvac.co.uk

www.lewvac.co.uk

646 ms

analytics.js

analytics.js

48 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

220 ms

Defaults.css

Defaults.css

287 ms

style.css

style.css

291 ms

styles.css

styles.css

289 ms

frontend.css

frontend.css

775 ms

bootstrap.css

bootstrap.css

369 ms

front.css

front.css

303 ms

yith_wcas_ajax_search.css

yith_wcas_ajax_search.css

362 ms

js_composer.css

js_composer.css

610 ms

masterslider.main.css

masterslider.main.css

381 ms

custom.css

custom.css

387 ms

woovartables.css

woovartables.css

438 ms

ultimate.min.css

ultimate.min.css

647 ms

plugins_1.css

plugins_1.css

671 ms

theme_1.css

theme_1.css

687 ms

theme_shop_1.css

theme_shop_1.css

591 ms

skin_1.css

skin_1.css

711 ms

style.css

style.css

719 ms

css

css

62 ms

style.css

style.css

721 ms

style.css

style.css

721 ms

cart_customize_style.css

cart_customize_style.css

727 ms

dropdown_list_customize_style.css

dropdown_list_customize_style.css

746 ms

widget_customize_style.css

widget_customize_style.css

769 ms

popup_customize_style.css

popup_customize_style.css

766 ms

frontend.min.js

frontend.min.js

781 ms

jquery.js

jquery.js

893 ms

jquery-migrate.min.js

jquery-migrate.min.js

820 ms

jquery.js

jquery.js

844 ms

bootstrap.min.js

bootstrap.min.js

845 ms

front.js

front.js

861 ms

chosen.jquery.min.js

chosen.jquery.min.js

896 ms

clear_storage.js

clear_storage.js

923 ms

add-to-cart.min.js

add-to-cart.min.js

922 ms

woocommerce-add-to-cart.js

woocommerce-add-to-cart.js

941 ms

stupidtable.min.js

stupidtable.min.js

975 ms

linkid.js

linkid.js

16 ms

collect

collect

19 ms

collect

collect

41 ms

js

js

68 ms

css

css

12 ms

lightbox-gallery.css

lightbox-gallery.css

851 ms

ultimate-params.min.js

ultimate-params.min.js

790 ms

plugins.min.js

plugins.min.js

884 ms

jquery.blueimp-gallery.min.js

jquery.blueimp-gallery.min.js

728 ms

jquery.form.min.js

jquery.form.min.js

745 ms

css

css

13 ms

scripts.js

scripts.js

754 ms

wc-aelia-currency-switcher.js

wc-aelia-currency-switcher.js

1699 ms

popup.js

popup.js

707 ms

general.js

general.js

708 ms

jquery.blockUI.min.js

jquery.blockUI.min.js

727 ms

woocommerce.min.js

woocommerce.min.js

697 ms

jquery.cookie.min.js

jquery.cookie.min.js

566 ms

cart-fragments.min.js

cart-fragments.min.js

525 ms

yith-autocomplete.min.js

yith-autocomplete.min.js

511 ms

comment-reply.min.js

comment-reply.min.js

503 ms

jquery.easing.min.js

jquery.easing.min.js

537 ms

masterslider.min.js

masterslider.min.js

532 ms

style.css

style.css

532 ms

theme.min.js

theme.min.js

638 ms

jquery.colorbox.js

jquery.colorbox.js

639 ms

jquery.tooltip.js

jquery.tooltip.js

635 ms

lightbox-gallery.js

lightbox-gallery.js

615 ms

devbridge-jquery-autocomplete.min.js

devbridge-jquery-autocomplete.min.js

593 ms

js_composer_front.js

js_composer_front.js

606 ms

LewVac.gif

LewVac.gif

96 ms

blank.gif

blank.gif

95 ms

payments.png

payments.png

233 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4k.woff

48 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4k.woff

66 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4k.woff

77 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4k.woff

78 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1y4k.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1y4k.woff

78 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

682 ms

www.lewvac.co.uk

www.lewvac.co.uk

313 ms

loading-2.gif

loading-2.gif

92 ms

DN40CF-TEE-5_cutout.jpg

DN40CF-TEE-5_cutout.jpg

310 ms

TF-BSH_NEW1.jpg

TF-BSH_NEW1.jpg

446 ms

icon11.png

icon11.png

86 ms

icon11.png

icon11.png

85 ms

DN40CF-TEE-5_cutout.jpg

DN40CF-TEE-5_cutout.jpg

233 ms

TF-BSH_NEW1.jpg

TF-BSH_NEW1.jpg

411 ms

Accessibility Review

lewvac.co.uk accessibility score

71

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

Image elements do not have [alt] attributes

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

lewvac.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

lewvac.co.uk SEO score

86

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

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

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 Lewvac.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 Lewvac.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

lewvac.co.uk

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