3.3 sec in total
177 ms
2.9 sec
267 ms
Welcome to centralvacuum.com homepage info - get ready to check Central Vacuum best content right away, or after learning these important things about centralvacuum.com
Helping you keep your home clean and healthy for years to come. Quality central vacuums helping families keep homes clean since 1961.
Visit centralvacuum.comWe analyzed Centralvacuum.com page load time and found that the first response time was 177 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
centralvacuum.com performance score
name
value
score
weighting
Value2.7 s
61/100
10%
Value9.5 s
0/100
25%
Value5.1 s
61/100
10%
Value910 ms
31/100
30%
Value0
100/100
15%
Value11.5 s
18/100
10%
177 ms
606 ms
1560 ms
311 ms
223 ms
Our browser made a total of 85 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Centralvacuum.com, 67% (57 requests) were made to Builtinvacuum.com and 6% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Builtinvacuum.com.
Page size can be reduced by 625.6 kB (48%)
1.3 MB
673.4 kB
In fact, the total size of Centralvacuum.com main page is 1.3 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. 30% of websites need less resources to load. Images take 460.3 kB which makes up the majority of the site volume.
Potential reduce by 71.9 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 18.9 kB, which is 22% 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 71.9 kB or 82% of the original size.
Potential reduce by 20.8 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 images are well optimized though.
Potential reduce by 214.4 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 214.4 kB or 56% of the original size.
Potential reduce by 318.5 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. Centralvacuum.com needs all CSS files to be minified and compressed as it can save up to 318.5 kB or 87% of the original size.
Number of requests can be reduced by 38 (46%)
82
44
The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Central Vacuum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
centralvacuum.com
177 ms
builtinvacuum.com
606 ms
styles.min.css
1560 ms
jquery.sidr.light.css
311 ms
slicknav.css
223 ms
jquery-1.11.2.min.js
536 ms
jquery.mobile-1.4.5.min.js
20 ms
jquery.easing.1.3.js
226 ms
jquery.touchSwipe.min.js
304 ms
jquery.liquid-slider.min.js
385 ms
jquery.sticky.js
296 ms
jquery.sidr.min.js
325 ms
jqm-spinbox.min.js
172 ms
respond.min.js
369 ms
wTooltip.1.4.min.js
229 ms
getseal
53 ms
main.js
185 ms
AC_RunActiveContent.js
223 ms
html5ext.js
227 ms
html5videotracking.js
237 ms
bPopup.js
259 ms
conversion.js
31 ms
seal.js
25 ms
bg.jpg
75 ms
divider.jpg
86 ms
stars-5-0.png
454 ms
antinew.jpg
83 ms
menu-bg-round-top.png
77 ms
logo.png
79 ms
border.jpg
120 ms
icon.png
251 ms
usflag.jpg
250 ms
housediagram_small.png
251 ms
sfFocus.png
329 ms
sbOver.png
350 ms
sfNorm.png
373 ms
sbNorm.png
250 ms
menu-brands.png
252 ms
logo.png
253 ms
callButton.png
252 ms
products.png
253 ms
mappin.png
253 ms
support.png
273 ms
search.png
307 ms
cart.png
307 ms
close.png
310 ms
gplus-32.png
20 ms
102.gif
28 ms
top-shadow.png
302 ms
central-vacuum-home-header.jpg
545 ms
homeMobile.gif
447 ms
contentBorderBG.gif
383 ms
featured-product.jpg
389 ms
featured-product-two.jpg
397 ms
featured-video-two.jpg
531 ms
featured-video.jpg
556 ms
facebook.png
475 ms
twitter-bird-larry.png
514 ms
youtube.png
517 ms
stars-5-0.png
549 ms
years-online.png
586 ms
getseal
24 ms
md-manufacturing-80003846.png
121 ms
md-manufacturing-80003846.js
95 ms
satisfaction_small.png
562 ms
accepted-credit-cards-large.png
550 ms
usa-free-shipping.png
553 ms
secure90x72.gif
19 ms
dc.js
104 ms
gtmp_compiled.js
102 ms
83 ms
52 ms
4518.js
26 ms
gtmp_compiled_9-hatpZX8VY.js
34 ms
__utm.gif
16 ms
tm2
19 ms
gtmp_compiled_B7HPFKWOYMU.js
10 ms
gb2
17 ms
clear.gif
16 ms
ts_badge_v4.png
9 ms
ts_flyover_v2.png
10 ms
ts_flyover_stars.png
15 ms
queries.css
77 ms
2-md-manufacturing-80003846.css
10 ms
roundtrip.js
12 ms
centralvacuum.com accessibility score
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
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
centralvacuum.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
centralvacuum.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
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
Document uses legible font sizes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Centralvacuum.com 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 Centralvacuum.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.
centralvacuum.com
Open Graph description is not detected on the main page of Central Vacuum. 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: