4.1 sec in total
431 ms
3.5 sec
144 ms
Click here to check amazing Navien America content. Otherwise, check out these important facts you probably never knew about navienamerica.com
Navien tankless water heaters & boilers for residential and commercial applications use innovative high efficiency technology to provide a comfortable environment.
Visit navienamerica.comWe analyzed Navienamerica.com page load time and found that the first response time was 431 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
navienamerica.com performance score
name
value
score
weighting
Value5.4 s
6/100
10%
Value13.3 s
0/100
25%
Value8.5 s
17/100
10%
Value700 ms
43/100
30%
Value0.001
100/100
15%
Value14.4 s
9/100
10%
431 ms
1510 ms
5 ms
12 ms
61 ms
Our browser made a total of 77 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Navienamerica.com, 91% (70 requests) were made to Us.navien.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Us.navien.com.
Page size can be reduced by 228.3 kB (23%)
1.0 MB
777.8 kB
In fact, the total size of Navienamerica.com main page is 1.0 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. 25% of websites need less resources to load. Images take 723.8 kB which makes up the majority of the site volume.
Potential reduce by 32.1 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 15.2 kB, which is 40% 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 32.1 kB or 84% of the original size.
Potential reduce by 23.8 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. Navien America images are well optimized though.
Potential reduce by 124.3 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 124.3 kB or 66% of the original size.
Potential reduce by 48.2 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. Navienamerica.com needs all CSS files to be minified and compressed as it can save up to 48.2 kB or 87% of the original size.
Number of requests can be reduced by 5 (7%)
71
66
The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Navien America. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.
navienamerica.com
431 ms
us.navien.com
1510 ms
analytics.js
5 ms
collect
12 ms
collect
61 ms
common.css
383 ms
layout.css
378 ms
main.css
304 ms
jquery-1.5.1.min.js
551 ms
publishing.js
304 ms
na.js
224 ms
player_api
47 ms
hqdefault.jpg
38 ms
quickBGIcon01.gif
80 ms
quickBGIcon01_on.gif
77 ms
quickBGIcon02.gif
79 ms
quickBGIcon02_on.gif
84 ms
quickBGIcon03.gif
83 ms
quickBGIcon03_on.gif
81 ms
quickBGIcon04.gif
152 ms
quickBGIcon04_on.gif
155 ms
quickBGIcon05.gif
154 ms
quickBGIcon05_on.gif
155 ms
quickBGIcon06.gif
157 ms
quickBGIcon06_on.gif
158 ms
icoMvPlayer.png
227 ms
icoMvPlayer_over.png
229 ms
icoMvPlayer02.png
229 ms
icoMvPlayer02_over.png
231 ms
main_bg.gif
233 ms
logo.gif
234 ms
bar1x7.gif
302 ms
search_bt01.gif
303 ms
main_v_bt_on.png
305 ms
main_v_bt.png
306 ms
main_copy01.png
322 ms
dot3x3.gif
309 ms
main_visual_img01.jpg
741 ms
main_copy_nhb.png
444 ms
main_visual_img_nhb.jpg
533 ms
main_copy_npe_s.png
441 ms
mainBnr_npe_s.gif
448 ms
main_visual_img_npe_s.jpg
521 ms
main_copy_npe_a.png
527 ms
mainBnr_npe_a.gif
532 ms
main_visual_img02.jpg
604 ms
main_copy_comfort_flow.png
617 ms
main_visual_img03.jpg
840 ms
main_copy_ncb-e.png
598 ms
www-widgetapi.js
18 ms
OPENSANS-REGULAR.woff
702 ms
OPENSANS-BOLD.woff
687 ms
OPENSANS-SEMIBOLD.woff
844 ms
main_visual_img_ncb-e.jpg
697 ms
main_copy05.png
736 ms
mainBnr05.gif
760 ms
main_visual_img05.jpg
782 ms
mainSearchBoxBg.gif
707 ms
main_banner_boilersmadesmart.gif
752 ms
main_banner_condensingsaves.gif
764 ms
main_banner_wholehousecombi.gif
763 ms
btnGoFinder.gif
778 ms
search_bt02.gif
757 ms
go_bt.gif
769 ms
icoMvPlayer02_overout.png
767 ms
main_img01.gif
768 ms
main_img02.gif
775 ms
main_icon01.gif
777 ms
main_icon02.gif
757 ms
main_icon03.gif
770 ms
main_icon04.gif
768 ms
popXbt.gif
768 ms
footer_bar.gif
776 ms
NAV_Web_YouTube.png
765 ms
NAV_Web_FB.png
693 ms
NAV_Web_Twitter.png
705 ms
NAV_Web_LinkedIn.png
701 ms
navienamerica.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
Image elements do not have [alt] attributes
Links do not have a discernible name
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.
navienamerica.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
navienamerica.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Navienamerica.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 Navienamerica.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.
navienamerica.com
Open Graph description is not detected on the main page of Navien America. 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: