Tools & Wizards About Us

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

chemicalelements.com

Chemical Elements.com - An Interactive Periodic Table of the Elements

Page Load Speed

1.3 sec in total

First Response

75 ms

Resources Loaded

1.1 sec

Page Rendered

73 ms

About Website

Welcome to chemicalelements.com homepage info - get ready to check Chemical Elements best content for United States right away, or after learning these important things about chemicalelements.com

An up-to-date periodic table with detailed but easy to understand information

Visit chemicalelements.com

Key Findings

We analyzed Chemicalelements.com page load time and found that the first response time was 75 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

chemicalelements.com performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value7.5 s

27/100

10%

TBT (Total Blocking Time)

Value2,240 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value13.0 s

13/100

10%

Network Requests Diagram

chemicalelements.com

75 ms

js

58 ms

tags.js

382 ms

index.jpg

21 ms

table.gif

47 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 9% of them (3 requests) were addressed to the original Chemicalelements.com, 59% (19 requests) were made to A.tribalfusion.com and 6% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (382 ms) relates to the external source Tags.expo9.exponential.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 18.9 kB (15%)

Content Size

125.0 kB

After Optimization

106.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Chemicalelements.com main page is 125.0 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. 15% of websites need less resources to load. Javascripts take 92.1 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 13.9 kB

  • Original 20.3 kB
  • After minification 19.8 kB
  • After compression 6.4 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. 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 13.9 kB or 69% of the original size.

Image Optimization

-5%

Potential reduce by 601 B

  • Original 12.6 kB
  • After minification 12.0 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. Chemical Elements images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 4.4 kB

  • Original 92.1 kB
  • After minification 92.1 kB
  • After compression 87.8 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 (46%)

Requests Now

24

After Optimization

13

  • AJAX
  • Images
  • JavaScript

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemical Elements. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

chemicalelements.com accessibility score

96

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

chemicalelements.com best practices score

58

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

chemicalelements.com SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chemicalelements.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 Chemicalelements.com main page’s claimed encoding is . 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

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