Tools & Wizards About Us
extremescience.com screenshot

Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

extremescience.com

Extreme Science | Science Technology | Earth Science

Page Load Speed

910 ms in total

First Response

223 ms

Resources Loaded

604 ms

Page Rendered

83 ms

extremescience.com screenshot

About Website

Visit extremescience.com now to see the best up-to-date Extreme Science content for United States and also check out these interesting facts you probably never knew about extremescience.com

Extreme Science is the place online to find the biggest, baddest, and the best in the world of extremes and learn about the science behind what makes each the most extreme example of its kind.

Visit extremescience.com

Key Findings

We analyzed Extremescience.com page load time and found that the first response time was 223 ms and then it took 687 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

extremescience.com performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

91/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value2.1 s

99/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value3.9 s

89/100

10%

Network Requests Diagram

www.extremescience.com

223 ms

extreme-science.png

168 ms

spwhale.jpg

228 ms

teeth.jpg

225 ms

whale-shark1.jpg

151 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 88% of them (7 requests) were addressed to the original Extremescience.com, 13% (1 request) were made to Translate.google.com. The less responsive or slowest element that took the longest time to load (265 ms) belongs to the original domain Extremescience.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.3 kB (15%)

Content Size

107.6 kB

After Optimization

91.3 kB

  • HTML
  • Images

In fact, the total size of Extremescience.com main page is 107.6 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. Only 10% of websites need less resources to load. Images take 88.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 15.8 kB

  • Original 19.2 kB
  • After minification 15.9 kB
  • After compression 3.4 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 3.3 kB, which is 17% 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 15.8 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 485 B

  • Original 88.3 kB
  • After minification 87.8 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. Extreme Science images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • Images
  • JavaScript

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

Network Requests Diagram

www.extremescience.com

www.extremescience.com

223 ms

extreme-science.png

extreme-science.png

168 ms

spwhale.jpg

spwhale.jpg

228 ms

teeth.jpg

teeth.jpg

225 ms

whale-shark1.jpg

whale-shark1.jpg

151 ms

massive-tsunami.jpg

massive-tsunami.jpg

265 ms

element.js

element.js

42 ms

copyscape.gif

copyscape.gif

123 ms

Accessibility Review

extremescience.com accessibility score

74

Accessibility Issues

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

extremescience.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

extremescience.com SEO score

69

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Extremescience.com 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 Extremescience.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

extremescience.com

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