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silentshadow.org screenshot

Report Summary

  • 62

    Performance

    Renders faster than
    77% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

silentshadow.org

Carbon Monoxide: Sources, Symptoms, and Prevention

Page Load Speed

20.8 sec in total

First Response

166 ms

Resources Loaded

20.4 sec

Page Rendered

234 ms

silentshadow.org screenshot

About Website

Visit silentshadow.org now to see the best up-to-date Silentshadow content for United States and also check out these interesting facts you probably never knew about silentshadow.org

Learn about the dangers of carbon monoxide exposure from common sources like vehicles, appliances, and cigarettes. Discover the symptoms of acute and chronic exposure and how to protect yourself with ...

Visit silentshadow.org

Key Findings

We analyzed Silentshadow.org page load time and found that the first response time was 166 ms and then it took 20.6 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

silentshadow.org performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

13/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.037

100/100

15%

TTI (Time to Interactive)

Value6.3 s

61/100

10%

Network Requests Diagram

silentshadow.org

166 ms

www.silentshadow.org

304 ms

style.css

225 ms

bookmark.js

171 ms

pphlogger.php

19805 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 87% of them (13 requests) were addressed to the original Silentshadow.org, 7% (1 request) were made to Brained.org and 7% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (19.8 sec) relates to the external source Brained.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.7 kB (77%)

Content Size

21.8 kB

After Optimization

5.1 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Silentshadow.org main page is 21.8 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 15.3 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 11.3 kB

  • Original 15.3 kB
  • After minification 15.1 kB
  • After compression 4.0 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 11.3 kB or 74% of the original size.

JavaScript Optimization

-20%

Potential reduce by 38 B

  • Original 190 B
  • After minification 175 B
  • After compression 152 B

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 38 B or 20% of the original size.

CSS Optimization

-85%

Potential reduce by 5.4 kB

  • Original 6.3 kB
  • After minification 5.4 kB
  • After compression 968 B

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. Silentshadow.org needs all CSS files to be minified and compressed as it can save up to 5.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (58%)

Requests Now

12

After Optimization

5

  • Images
  • JavaScript
  • CSS

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

Network Requests Diagram

silentshadow.org

silentshadow.org

166 ms

www.silentshadow.org

www.silentshadow.org

304 ms

style.css

style.css

225 ms

bookmark.js

bookmark.js

171 ms

pphlogger.php

pphlogger.php

19805 ms

Logo_25wht.gif

Logo_25wht.gif

131 ms

stripes2.gif

stripes2.gif

70 ms

tri.gif

tri.gif

80 ms

printpage.gif

printpage.gif

75 ms

bookmark.gif

bookmark.gif

114 ms

emailfrd.gif

emailfrd.gif

111 ms

adholder.gif

adholder.gif

112 ms

logo.gif

logo.gif

115 ms

spacer.gif

spacer.gif

120 ms

tablebgright.gif

tablebgright.gif

179 ms

Accessibility Review

silentshadow.org accessibility score

100

Accessibility Issues

Best Practices

silentshadow.org best practices score

83

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

silentshadow.org SEO score

100

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

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

silentshadow.org

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