953 ms in total
161 ms
658 ms
134 ms
Click here to check amazing Ntl Bts content for United States. Otherwise, check out these important facts you probably never knew about ntl.bts.gov
Charged with improving access to transportation focused materials needed by federal, state, and local decision-makers, the National Transportation Library's (NTL) mission is to facilitate and increase...
Visit ntl.bts.govWe analyzed Ntl.bts.gov page load time and found that the first response time was 161 ms and then it took 792 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.
ntl.bts.gov performance score
name
value
score
weighting
Value2.7 s
62/100
10%
Value12.0 s
0/100
25%
Value5.0 s
63/100
10%
Value1,420 ms
15/100
30%
Value0.001
100/100
15%
Value10.2 s
25/100
10%
161 ms
68 ms
45 ms
47 ms
47 ms
Our browser made a total of 57 requests to load all elements on the main page. We found that 86% of them (49 requests) were addressed to the original Ntl.bts.gov, 7% (4 requests) were made to Google-analytics.com and 2% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (194 ms) belongs to the original domain Ntl.bts.gov.
Page size can be reduced by 252.4 kB (77%)
325.8 kB
73.4 kB
In fact, the total size of Ntl.bts.gov main page is 325.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Javascripts take 160.7 kB which makes up the majority of the site volume.
Potential reduce by 30.6 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 6.5 kB, which is 18% 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 30.6 kB or 82% of the original size.
Potential reduce by 18.6 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. Obviously, Ntl Bts needs image optimization as it can save up to 18.6 kB or 54% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 117.4 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 117.4 kB or 73% of the original size.
Potential reduce by 85.9 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. Ntl.bts.gov needs all CSS files to be minified and compressed as it can save up to 85.9 kB or 92% of the original size.
Number of requests can be reduced by 39 (76%)
51
12
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ntl Bts. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
ntl.bts.gov
161 ms
local_top_nav_main.css
68 ms
topNavBarRita.js
45 ms
topNavBar.js
47 ms
no_ms.js
47 ms
jquery.min.js
110 ms
stepcarousel.js
71 ms
AC_RunActiveContent.js
72 ms
dot_analytics.js
182 ms
brand
18 ms
brand
58 ms
rita_main.css
72 ms
ga.js
44 ms
dot_logo_top.gif
37 ms
ntl_logo.png
38 ms
rita_home_link.gif
39 ms
print_page.gif
35 ms
spacer.gif
104 ms
spacer.gif
104 ms
spotlight_copy.gif
101 ms
facebook_blue_80.jpg
102 ms
twitter_icon2.jpg
101 ms
flickr_489.png
104 ms
th_delicious-icon_1.gif
103 ms
rss_feed_logo.png
104 ms
menu-bg.gif
93 ms
top_nav_background.gif
83 ms
box_top_gray.gif
82 ms
box_round_top_left_gray.gif
81 ms
box_round_top_right_gray.gif
84 ms
box_round_top_left_blue.gif
87 ms
box_top_blue.gif
88 ms
box_round_top_right_blue.gif
95 ms
box_left_side_blue.gif
91 ms
box_right_side_blue.gif
95 ms
box_left_side_gray.gif
102 ms
box_right.gif
117 ms
bottom_left.gif
120 ms
box_bottom.gif
122 ms
bottom_right.gif
123 ms
image_box_top_left.gif
124 ms
image_box_top.gif
137 ms
image_box_top_right.gif
154 ms
image_box_left.gif
157 ms
image_box_right.gif
159 ms
image_box_bottom_left.gif
161 ms
image_box_bottom.gif
160 ms
image_box_bottom_right.gif
173 ms
box_bottom_gray.gif
192 ms
box_round_bottom_right_gray.gif
194 ms
box_round_bottom_left_gray.gif
193 ms
extlink.png
194 ms
__utm.gif
31 ms
__utm.gif
11 ms
__utm.gif
29 ms
collect
57 ms
topNavArrowWhite.gif
46 ms
ntl.bts.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.
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
Links do not have a discernible name
ntl.bts.gov 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
Page has valid source maps
ntl.bts.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
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ntl.bts.gov can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ntl.bts.gov main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
ntl.bts.gov
Open Graph description is not detected on the main page of Ntl Bts. 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: