Tools & Wizards About Us

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

collision-dynamics.com

Collision Dynamics | Accident Reconstruction Experts | Crash Analysis

Page Load Speed

2.6 sec in total

First Response

738 ms

Resources Loaded

1.8 sec

Page Rendered

67 ms

About Website

Welcome to collision-dynamics.com homepage info - get ready to check Collision Dynamics best content right away, or after learning these important things about collision-dynamics.com

Collision Dynamics official site. Expert witness accident reconstruction analysis since 1991. Principal consultant: Scott Naramore.

Visit collision-dynamics.com

Key Findings

We analyzed Collision-dynamics.com page load time and found that the first response time was 738 ms and then it took 1.8 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.

Performance Metrics

collision-dynamics.com performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

61/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value440 ms

64/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

www.collision-dynamics.com

738 ms

originTrials.41d7301a.bundle.min.js

53 ms

minified.js

60 ms

focus-within-polyfill.js

58 ms

polyfill.min.js

489 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Collision-dynamics.com, 46% (16 requests) were made to Static.parastorage.com and 31% (11 requests) were made to Sentry-next.wixpress.com. The less responsive or slowest element that took the longest time to load (738 ms) belongs to the original domain Collision-dynamics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 216.3 kB (37%)

Content Size

582.0 kB

After Optimization

365.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Collision-dynamics.com main page is 582.0 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. 25% of websites need less resources to load. HTML takes 279.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 213.5 kB

  • Original 279.6 kB
  • After minification 278.1 kB
  • After compression 66.2 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 213.5 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 73.5 kB
  • After minification 73.5 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. Collision Dynamics images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.8 kB

  • Original 228.9 kB
  • After minification 228.8 kB
  • After compression 226.1 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 11 (55%)

Requests Now

20

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Collision Dynamics. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

collision-dynamics.com accessibility score

91

Accessibility Issues

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

High

Buttons do not have an accessible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best Practices

collision-dynamics.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

collision-dynamics.com SEO score

99

Search Engine Optimization Advices

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Collision-dynamics.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 Collision-dynamics.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.

Social Sharing Optimization

Open Graph data is detected on the main page of Collision Dynamics. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: