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centralvacuumdirect.com screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

centralvacuumdirect.com

Central Vacuum Systems, Bags & Parts | CentralVacuumDirect.com

Page Load Speed

3.3 sec in total

First Response

512 ms

Resources Loaded

2.3 sec

Page Rendered

473 ms

centralvacuumdirect.com screenshot

About Website

Click here to check amazing Central Vacuum Direct content for United States. Otherwise, check out these important facts you probably never knew about centralvacuumdirect.com

Shop for the largest selection of central vacuum systems, parts, hoses, & other accessories for your built-in vacuum, right here at CentralVacuumDirect.com.

Visit centralvacuumdirect.com

Key Findings

We analyzed Centralvacuumdirect.com page load time and found that the first response time was 512 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

centralvacuumdirect.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value2,730 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.293

41/100

15%

TTI (Time to Interactive)

Value21.1 s

1/100

10%

Network Requests Diagram

Default.asp

512 ms

jquery-ui.css

83 ms

default.css

86 ms

26920220114094221.css

91 ms

jquery-3.7.1.min.js

87 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 48% of them (42 requests) were addressed to the original Centralvacuumdirect.com, 23% (20 requests) were made to Cdn4.volusion.store and 5% (4 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (713 ms) relates to the external source U.heatmap.it.

Page Optimization Overview & Recommendations

Page size can be reduced by 541.8 kB (33%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Centralvacuumdirect.com main page is 1.6 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. 75% 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 755.8 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 159.6 kB

  • Original 205.1 kB
  • After minification 204.9 kB
  • After compression 45.5 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 159.6 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 29.4 kB

  • Original 755.8 kB
  • After minification 726.4 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. Central Vacuum Direct images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 41.2 kB

  • Original 310.8 kB
  • After minification 310.8 kB
  • After compression 269.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 41.2 kB or 13% of the original size.

CSS Optimization

-83%

Potential reduce by 311.6 kB

  • Original 377.2 kB
  • After minification 360.7 kB
  • After compression 65.6 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. Centralvacuumdirect.com needs all CSS files to be minified and compressed as it can save up to 311.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 40 (49%)

Requests Now

81

After Optimization

41

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Central Vacuum Direct. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Default.asp

Default.asp

512 ms

jquery-ui.css

jquery-ui.css

83 ms

default.css

default.css

86 ms

26920220114094221.css

26920220114094221.css

91 ms

jquery-3.7.1.min.js

jquery-3.7.1.min.js

87 ms

jquery-migrate-merged.js

jquery-migrate-merged.js

120 ms

jquery-ui.min.js

jquery-ui.min.js

115 ms

volusion.js

volusion.js

184 ms

content.css

content.css

149 ms

paypal-rest-default-buttons.js

paypal-rest-default-buttons.js

147 ms

soft_add.js

soft_add.js

126 ms

soft_add_mult.js

soft_add_mult.js

144 ms

soft_add.css

soft_add.css

188 ms

javascripts.js

javascripts.js

187 ms

js

js

118 ms

optimize.js

optimize.js

122 ms

f2c8c7e93216e073_complete.js

f2c8c7e93216e073_complete.js

86 ms

js

js

115 ms

js

js

183 ms

template.css

template.css

207 ms

design-toolkit.min.js

design-toolkit.min.js

215 ms

js

js

183 ms

vnav.css

vnav.css

197 ms

vnav.js

vnav.js

254 ms

owl.carousel.css

owl.carousel.css

227 ms

volusion-owl.css

volusion-owl.css

226 ms

owl.carousel.js

owl.carousel.js

248 ms

email-decode.min.js

email-decode.min.js

199 ms

template.min.js

template.min.js

260 ms

platform.js

platform.js

97 ms

class-name-watcher.js

class-name-watcher.js

266 ms

paypal-push-cart.js

paypal-push-cart.js

274 ms

push-cart.js

push-cart.js

287 ms

vef91dfe02fce4ee0ad053f6de4f175db1715022073587

vef91dfe02fce4ee0ad053f6de4f175db1715022073587

131 ms

css

css

44 ms

css

css

61 ms

fontello.css

fontello.css

145 ms

ionicons.min.css

ionicons.min.css

153 ms

gtm.js

gtm.js

100 ms

bat.js

bat.js

124 ms

log.js

log.js

713 ms

ACAN60A-1.jpg

ACAN60A-1.jpg

415 ms

header_bg.png

header_bg.png

218 ms

BEAM%20Logo%20(250x250).jpg

BEAM%20Logo%20(250x250).jpg

218 ms

Blank%20Table%20Space.jpg

Blank%20Table%20Space.jpg

218 ms

p1none.jpg

p1none.jpg

217 ms

p2none.jpg

p2none.jpg

218 ms

p3none.jpg

p3none.jpg

218 ms

Icon_FreeShipping_Small.gif

Icon_FreeShipping_Small.gif

417 ms

SMART%20SMP800%20Central%20Vacuum.jpg

SMART%20SMP800%20Central%20Vacuum.jpg

417 ms

blank.gif

blank.gif

416 ms

818744WSH-1.jpg

818744WSH-1.jpg

416 ms

155259-1.jpg

155259-1.jpg

504 ms

CS1660-1.jpg

CS1660-1.jpg

489 ms

30PN33KIT-1.jpg

30PN33KIT-1.jpg

489 ms

CVD-BI-43502-1.jpg

CVD-BI-43502-1.jpg

490 ms

7352-30-1.png

7352-30-1.png

503 ms

720TS-3-1.jpg

720TS-3-1.jpg

487 ms

050928-1.jpg

050928-1.jpg

501 ms

seboet2pack-1.jpg

seboet2pack-1.jpg

501 ms

S2600-Unit-Only-1.jpg

S2600-Unit-Only-1.jpg

555 ms

SR800-Unit-Only-1.jpg

SR800-Unit-Only-1.jpg

503 ms

35SBKIT-1.jpg

35SBKIT-1.jpg

551 ms

SR60-Unit-Only-1.jpg

SR60-Unit-Only-1.jpg

554 ms

35PN33KIT-1.jpg

35PN33KIT-1.jpg

552 ms

045389-1.jpg

045389-1.jpg

554 ms

CS46-Unit-Only-1.jpg

CS46-Unit-Only-1.jpg

610 ms

35W360KIT-1.jpg

35W360KIT-1.jpg

609 ms

ACAN790A-1.jpg

ACAN790A-1.jpg

557 ms

SR52-Unit-Only-1.jpg

SR52-Unit-Only-1.jpg

556 ms

jizaRExUiTo99u79D0KEwA.ttf

jizaRExUiTo99u79D0KEwA.ttf

372 ms

BngRUXNadjH0qYEzV7ab-oWlsbCGwRg.ttf

BngRUXNadjH0qYEzV7ab-oWlsbCGwRg.ttf

373 ms

normal.woff2

normal.woff2

298 ms

normal.woff2

normal.woff2

337 ms

normal.woff2

normal.woff2

337 ms

ssl.asp

ssl.asp

416 ms

ajax_receiver.asp

ajax_receiver.asp

374 ms

ajaxcart.asp

ajaxcart.asp

421 ms

ConfigurationSettingProvider.ashx

ConfigurationSettingProvider.ashx

215 ms

svgdefs.svg

svgdefs.svg

269 ms

1712600076401.png

1712600076401.png

206 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

12 ms

badge

badge

182 ms

main.js

main.js

109 ms

gray_stars_large.png

gray_stars_large.png

53 ms

orange_stars_large.png

orange_stars_large.png

49 ms

gcr_logo_stacked.png

gcr_logo_stacked.png

49 ms

Accessibility Review

centralvacuumdirect.com accessibility score

74

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.

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 IDs are not unique

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

Image elements do not have [alt] attributes

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

centralvacuumdirect.com 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

centralvacuumdirect.com SEO score

79

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

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

    EN

  • Encoding

    UTF-8

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

centralvacuumdirect.com

Open Graph description is not detected on the main page of Central Vacuum Direct. 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: