Tools & Wizards About Us

Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 79% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

chem-tox.com

Chemicals and Effects Upon Health

Page Load Speed

1.2 sec in total

First Response

85 ms

Resources Loaded

766 ms

Page Rendered

326 ms

About Website

Visit chem-tox.com now to see the best up-to-date Chem Tox content for United States and also check out these interesting facts you probably never knew about chem-tox.com

Effects of Common Chemicals on Health. Large amounts of research on how modern chemicals are damaging human health. Toxicology categories include cancer, immune system damage, neurological damage, and...

Visit chem-tox.com

Key Findings

We analyzed Chem-tox.com page load time and found that the first response time was 85 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

chem-tox.com performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value1.5 s

100/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.0 s

76/100

10%

Network Requests Diagram

chem-tox.com

85 ms

chem-tox.com

147 ms

adsbygoogle.js

104 ms

bkg-medlogo.jpg

160 ms

titl-chemtox.gif

162 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 86% of them (12 requests) were addressed to the original Chem-tox.com, 14% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (368 ms) relates to the external source Pagead2.googlesyndication.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 28.5 kB (9%)

Content Size

325.8 kB

After Optimization

297.3 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Chem-tox.com main page is 325.8 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 238.4 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 14.1 kB

  • Original 22.0 kB
  • After minification 22.0 kB
  • After compression 7.9 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 14.1 kB or 64% of the original size.

Image Optimization

-22%

Potential reduce by 14.3 kB

  • Original 65.3 kB
  • After minification 51.0 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. Obviously, Chem Tox needs image optimization as it can save up to 14.3 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 21 B

  • Original 238.4 kB
  • After minification 238.4 kB
  • After compression 238.4 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

We found no issues to fix!

Requests Now

12

After Optimization

12

  • Images
  • JavaScript

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chem Tox. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

chem-tox.com accessibility score

92

Accessibility Issues

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

Best Practices

chem-tox.com 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

High

Page has valid source maps

SEO Factors

chem-tox.com SEO score

75

Search Engine Optimization Advices

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 Chem-tox.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 Chem-tox.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 description is not detected on the main page of Chem Tox. 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: