2 sec in total
129 ms
1.3 sec
619 ms
Visit nationalheatingandac.com now to see the best up-to-date National Heating And AC content for United States and also check out these interesting facts you probably never knew about nationalheatingandac.com
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Visit nationalheatingandac.comWe analyzed Nationalheatingandac.com page load time and found that the first response time was 129 ms and then it took 1.9 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.
nationalheatingandac.com performance score
name
value
score
weighting
Value2.9 s
53/100
10%
Value7.4 s
4/100
25%
Value6.6 s
37/100
10%
Value1,950 ms
8/100
30%
Value0
100/100
15%
Value15.8 s
6/100
10%
129 ms
200 ms
208 ms
212 ms
244 ms
Our browser made a total of 77 requests to load all elements on the main page. We found that 82% of them (63 requests) were addressed to the original Nationalheatingandac.com, 5% (4 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Calls.bluecorona.com. The less responsive or slowest element that took the longest time to load (516 ms) belongs to the original domain Nationalheatingandac.com.
Page size can be reduced by 1.4 MB (56%)
2.4 MB
1.1 MB
In fact, the total size of Nationalheatingandac.com main page is 2.4 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. 70% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 48.9 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. 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 48.9 kB or 77% of the original size.
Potential reduce by 768.3 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. Obviously, National Heating And AC needs image optimization as it can save up to 768.3 kB or 46% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 395.4 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 395.4 kB or 76% of the original size.
Potential reduce by 152.0 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. Nationalheatingandac.com needs all CSS files to be minified and compressed as it can save up to 152.0 kB or 83% of the original size.
Number of requests can be reduced by 37 (52%)
71
34
The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of National Heating And AC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
www.nationalheatingandac.com
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nationalheatingandac.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-*] attributes do not match their roles
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
nationalheatingandac.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
Missing source maps for large first-party JavaScript
nationalheatingandac.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
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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 Nationalheatingandac.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 Nationalheatingandac.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.
nationalheatingandac.com
Open Graph description is not detected on the main page of National Heating And AC. 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: