2.6 sec in total
152 ms
1.7 sec
709 ms
Visit one.nhtsa.gov now to see the best up-to-date One NHTSA content for United States and also check out these interesting facts you probably never knew about one.nhtsa.gov
Get resources and info about staying safe on America’s roads. And, find out if there’s a recall on your car or how to report a vehicle safety problem.
Visit one.nhtsa.govWe analyzed One.nhtsa.gov page load time and found that the first response time was 152 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
one.nhtsa.gov performance score
name
value
score
weighting
Value2.5 s
66/100
10%
Value10.5 s
0/100
25%
Value5.7 s
51/100
10%
Value2,230 ms
6/100
30%
Value0.093
91/100
15%
Value15.0 s
7/100
10%
152 ms
22 ms
38 ms
52 ms
60 ms
Our browser made a total of 113 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original One.nhtsa.gov, 8% (9 requests) were made to Fonts.gstatic.com and 5% (6 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (516 ms) relates to the external source Youtube.com.
Page size can be reduced by 1.0 MB (33%)
3.2 MB
2.1 MB
In fact, the total size of One.nhtsa.gov main page is 3.2 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. 80% 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. Javascripts take 944.7 kB which makes up the majority of the site volume.
Potential reduce by 396.4 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. 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 396.4 kB or 54% of the original size.
Potential reduce by 3.5 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. One NHTSA images are well optimized though.
Potential reduce by 150.9 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 150.9 kB or 16% of the original size.
Potential reduce by 493.3 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. One.nhtsa.gov needs all CSS files to be minified and compressed as it can save up to 493.3 kB or 86% of the original size.
Number of requests can be reduced by 82 (82%)
100
18
The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of One NHTSA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 75 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
www.nhtsa.gov
152 ms
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22 ms
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one.nhtsa.gov 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
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
one.nhtsa.gov 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
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
one.nhtsa.gov SEO score
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 One.nhtsa.gov 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 One.nhtsa.gov 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.
one.nhtsa.gov
Open Graph description is not detected on the main page of One NHTSA. 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: