2 sec in total
220 ms
1.2 sec
594 ms
Click here to check amazing Nv Backflow content. Otherwise, check out these important facts you probably never knew about nvbackflow.com
Backflow preventer testing, repair and installation for Napa, Saint Helena and American Canyon. Professional backflow prevention services.
Visit nvbackflow.comWe analyzed Nvbackflow.com page load time and found that the first response time was 220 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
nvbackflow.com performance score
name
value
score
weighting
Value1.9 s
87/100
10%
Value6.0 s
13/100
25%
Value3.1 s
93/100
10%
Value100 ms
98/100
30%
Value0
100/100
15%
Value5.1 s
76/100
10%
220 ms
274 ms
138 ms
190 ms
192 ms
Our browser made a total of 32 requests to load all elements on the main page. We found that 88% of them (28 requests) were addressed to the original Nvbackflow.com, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Seal-goldengate.bbb.org. The less responsive or slowest element that took the longest time to load (454 ms) belongs to the original domain Nvbackflow.com.
Page size can be reduced by 89.0 kB (5%)
1.6 MB
1.6 MB
In fact, the total size of Nvbackflow.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. 30% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 22.4 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 5.4 kB, which is 19% 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 22.4 kB or 77% of the original size.
Potential reduce by 40.6 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. Nv Backflow images are well optimized though.
Potential reduce by 16.5 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 16.5 kB or 19% of the original size.
Potential reduce by 9.6 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. Nvbackflow.com needs all CSS files to be minified and compressed as it can save up to 9.6 kB or 26% of the original size.
Number of requests can be reduced by 4 (14%)
29
25
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nv Backflow. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
nvbackflow.com
220 ms
nvbackflow.com
274 ms
bootstrap.min.css
138 ms
font-awesome.min.css
190 ms
modern-business.min.css
192 ms
jquery.min.js
299 ms
popper.min.js
206 ms
bootstrap.min.js
298 ms
analytics.js
29 ms
blue-seal-293-61-bbb-547699.png
25 ms
small_logo250.png
117 ms
slider1.jpg
302 ms
slider2.jpg
296 ms
slider3.jpg
454 ms
venmo-2.png
118 ms
play-store.png
119 ms
apple-app-store.png
132 ms
logo.png
300 ms
backflow-testing.jpg
186 ms
backflow-repair.jpg
199 ms
backflow-installs.jpg
257 ms
credit-cards.png
377 ms
venmo-3.png
316 ms
play-store1.png
362 ms
qb-long.png
365 ms
facebook.png
364 ms
instagram.png
385 ms
google-plus.png
425 ms
twitter.png
426 ms
collect
35 ms
fontawesome-webfont.woff
313 ms
js
94 ms
nvbackflow.com accessibility score
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
ARIA input fields do not have accessible names
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
nvbackflow.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
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
nvbackflow.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
Document doesn't have a valid hreflang
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 Nvbackflow.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 Nvbackflow.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.
nvbackflow.com
Open Graph data is detected on the main page of Nv Backflow. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: