Access its.dot.gov. Intelligent Transportation Systems

Report Summary

About Website

Welcome to its.dot.gov homepage info - get ready to check Its Dot best content for United States right away, or after learning these important things about its.dot.gov

The Office of the Secretary of Transportation (OST-R) is dedicated solely to the advancement of the U.S. Department of Transportation (USDOT, US DOT or DOT) research and innovative technology program....

Visit its.dot.gov

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value17.2 s

0/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

its.dot.gov

151 ms

rita_main.css

155 ms

local_top_nav_main.css

73 ms

research.css

105 ms

JPO_main.css

125 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 52% of them (37 requests) were addressed to the original Its.dot.gov, 13% (9 requests) were made to Google.com and 6% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (242 ms) belongs to the original domain Its.dot.gov.

Content Size

1.5 MB

After Optimization

1.1 MB

In fact, the total size of Its.dot.gov main page is 1.5 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. 50% of websites need less resources to load. Images take 988.4 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 45.4 kB

Original 56.2 kB
After minification 43.1 kB
After compression 10.8 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 13.1 kB, which is 23% 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 45.4 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 48.3 kB

Original 988.4 kB
After minification 940.1 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. Its Dot images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 213.3 kB

Original 329.8 kB
After minification 264.7 kB
After compression 116.5 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 213.3 kB or 65% of the original size.

CSS Optimization

-90%

Potential reduce by 144.6 kB

Original 160.9 kB
After minification 92.1 kB
After compression 16.3 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. Its.dot.gov needs all CSS files to be minified and compressed as it can save up to 144.6 kB or 90% of the original size.

Requests Now

After Optimization

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Its Dot. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

Language and Encoding

Language Detected

N/A
Language Claimed

EN
Encoding

ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Its.dot.gov can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Its.dot.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.

Social Sharing Optimization

its.dot.gov

Open Graph description is not detected on the main page of Its Dot. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Intelligent Transportation Systems - Joint Program Office Home Page

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)