Tools & Wizards About Us

Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

impactcraters.us

United States Meteorite Impact Craters - impact crater science in the United States - introduction

Page Load Speed

858 ms in total

First Response

9 ms

Resources Loaded

151 ms

Page Rendered

698 ms

About Website

Welcome to impactcraters.us homepage info - get ready to check Impact Craters best content right away, or after learning these important things about impactcraters.us

Education and research resource web page dedicated to impact crater science and to known and probable meteorite impact craters in the United States.

Visit impactcraters.us

Key Findings

We analyzed Impactcraters.us page load time and found that the first response time was 9 ms and then it took 849 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.

Performance Metrics

impactcraters.us performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

80/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value2.1 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.1 s

99/100

10%

Network Requests Diagram

impactcraters.us

9 ms

impactcraters.us

13 ms

mc_global.195798.css

28 ms

theme.css

31 ms

turbify_ss_extensions_1675321208.js

30 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that 22% of them (2 requests) were addressed to the original Impactcraters.us, 56% (5 requests) were made to S.turbifycdn.com and 22% (2 requests) were made to Turbifycdn.com. The less responsive or slowest element that took the longest time to load (71 ms) relates to the external source Turbifycdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 32.4 kB (17%)

Content Size

192.9 kB

After Optimization

160.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Impactcraters.us main page is 192.9 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. 20% of websites need less resources to load. Javascripts take 86.7 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 31.2 kB

  • Original 45.5 kB
  • After minification 45.5 kB
  • After compression 14.3 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 31.2 kB or 69% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 55.8 kB
  • After minification 55.8 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. Impact Craters images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 399 B

  • Original 86.7 kB
  • After minification 86.7 kB
  • After compression 86.3 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.

CSS Optimization

-17%

Potential reduce by 839 B

  • Original 5.0 kB
  • After minification 5.0 kB
  • After compression 4.1 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. Impactcraters.us needs all CSS files to be minified and compressed as it can save up to 839 B or 17% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • Images
  • JavaScript
  • CSS

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Impact Craters. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

impactcraters.us accessibility score

95

Accessibility Issues

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

impactcraters.us best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

impactcraters.us SEO score

77

Search Engine Optimization Advices

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 Impactcraters.us 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 Impactcraters.us 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 description is not detected on the main page of Impact Craters. 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: