2 sec in total
42 ms
1.4 sec
635 ms
Visit nhtsa.gov now to see the best up-to-date NHTSA content for United States and also check out these interesting facts you probably never knew about 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 nhtsa.govWe analyzed Nhtsa.gov page load time and found that the first response time was 42 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
nhtsa.gov performance score
name
value
score
weighting
Value4.0 s
23/100
10%
Value9.0 s
1/100
25%
Value5.8 s
50/100
10%
Value2,170 ms
6/100
30%
Value0.093
91/100
15%
Value17.6 s
4/100
10%
42 ms
77 ms
24 ms
35 ms
49 ms
Our browser made a total of 68 requests to load all elements on the main page. We found that 65% of them (44 requests) were addressed to the original Nhtsa.gov, 7% (5 requests) were made to Search.usa.gov and 6% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (411 ms) relates to the external source Youtube.com.
Page size can be reduced by 1.6 MB (64%)
2.4 MB
861.6 kB
In fact, the total size of Nhtsa.gov 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. 75% 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 1.5 MB which makes up the majority of the site volume.
Potential reduce by 33.5 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 12% 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 33.5 kB or 76% of the original size.
Potential reduce by 109.7 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, NHTSA needs image optimization as it can save up to 109.7 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 1.1 MB
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 1.1 MB or 76% of the original size.
Potential reduce by 274.1 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. Nhtsa.gov needs all CSS files to be minified and compressed as it can save up to 274.1 kB or 83% of the original size.
Number of requests can be reduced by 37 (58%)
64
27
The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 27 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
nhtsa.gov
42 ms
www.nhtsa.gov
77 ms
grids.css
24 ms
nhtsa.css
35 ms
theme.css
49 ms
dot_analytics.js
33 ms
site_catalyst_loader.js
33 ms
jquery-1.10.2.js
107 ms
jquery-1.11.1.js
108 ms
jquery-migrate-1.2.1.min.js
97 ms
nhtsa.js
97 ms
carousel.js
99 ms
consumer-resources.js
97 ms
jquery.h5validate.js
98 ms
util.js
101 ms
jquery.accord.js
100 ms
nested_accordion.js
155 ms
accordion2.js
155 ms
site_catalyst_tracker.js
160 ms
ga.js
45 ms
amc.js
104 ms
nhtsa_logo.png
34 ms
btn_email_submit.png
88 ms
mr-safe-cars-save-lives-650p.jpg
92 ms
01152016-detroit-agreement-650p.jpg
90 ms
detroit.650p-01122016.jpg
194 ms
5-stars-650p.jpg
88 ms
icon_featured_news_recall.png
185 ms
events.png
191 ms
s1n.png
189 ms
carseat-header.jpg
190 ms
safety-ratings-header.jpg
182 ms
icon-youtube.png
186 ms
icon-facebook.png
187 ms
icon-twitter.png
281 ms
icon-dot.png
187 ms
inpage_linkid.js
238 ms
sitecatalyst.js
171 ms
nav_background.jpg
127 ms
mainnavsprites.24.png
129 ms
sprites.png
130 ms
btn_search_submit.png
127 ms
remote.loader.js
108 ms
gvTUTMhETLA
306 ms
enN5qBSunOg
411 ms
CdN-fSQMZd8
408 ms
background-widget-pattern.png
215 ms
stars.png
215 ms
administrator.png
214 ms
__utm.gif
143 ms
sayt.css
14 ms
sayt_loader_libs.js
152 ms
stats.js
13 ms
www-embed-player-vfl2nqgT-.css
159 ms
www-embed-player.js
180 ms
base.js
245 ms
btn-viewall-arrow-down-blue.png
104 ms
gateway.min.js
124 ms
btn-back-arrow-up-blue.png
35 ms
module-corners.24.png
35 ms
__utm.gif
17 ms
foresee_trigger.js
28 ms
s44108874287921
209 ms
AUrdvhejKSJD2XN0WEoLkNJn8VW-ISfFFTHwdQR0Ws4.js
96 ms
ad_status.js
243 ms
2UX7WLTfW3W8TclTUvlFyQ.woff
172 ms
RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff
176 ms
ui-bg_flat_75_ffffff_40x100.png
4 ms
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
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
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
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 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 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.
nhtsa.gov
Open Graph description is not detected on the main page of 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: