Periodictable.com The Photographic Periodic Table of the Elements

The definitive online periodic table reference site including technical data, and photographs and descriptions of thousands of samples of the chemical...

Periodictable.com Overview

When designing a structural website overview for periodictable.com, it is important to understand the purpose of the website. The site has been designed to provide a reliable and informative platform for chemistry enthusiasts and students to learn more about the elements found in the periodic table. The website's name and title, "The Photographic Periodic Table of the Elements," reflect its mission to offer visual and technical information about each element.

The website is hosted by Wolfram Research, Inc., a well-known company in the scientific computing industry. The fact that the website is hosted by Wolfram Research, Inc. is a sign of its reliability and credibility. In addition, the website has a top-level domain of .COM, indicating the site has an international audience. The SSL issued by Let's Encrypt ensures that any data entered on this website is secure.

According to analytics, the website attracts 4061 unique users per day and generates 8,122 page views daily. With a site value of 140160 US dollars, it is clear that people find the information provided on the website to be valuable.

The website is designed to be easy to navigate, allowing users to explore the chemical elements shown in a photographic periodic table format. The interface is user-friendly and has a clear layout, making it easy for visitors to find their desired information quickly.

The website has a high PageSpeed Insights score of 84, indicating it is optimized for speed and performance. This makes browsing the website a smooth and seamless experience for users, providing an excellent user experience.

In conclusion, periodictable.com is a well-designed and informative website that provides users with reliable information about the elements in the periodic table. Its user-friendly interface, fast loading speed, and valuable content make it a reliable resource for students and professionals in the field of chemistry. Above all, it is a family-friendly website that students of all ages can visit to learn more about the fascinating world of chemistry.

Periodictable.com Rank Summary

Global Rank

83,930

Average Load Time

4.99sec

Links In Count

870

Website Value

$140,300

Audience Geography. Where are periodictable.com visitors located?

Country	Visitors
United States US	52.1%
India IN	7.9%
Canada CA	2.8%
Iran IR	2.3%
Germany DE	2.1%
Kuwait KW	1.9%
Philippines PH	1.6%
Australia AU	1.6%
South Africa ZA	0.8%
Other	26.9%

Country	Pageviews
United States US	51.3%
Iran IR	9.9%
India IN	5.1%
Kuwait KW	1.9%
Canada CA	1.6%
Australia AU	1.4%
Germany DE	1.3%
Philippines PH	1.3%
Egypt EG	0.8%
Other	25.3%

Country	Rank
Kuwait KW	8974
Philippines PH	19961
United States US	29897
Iran IR	45782
India IN	56404
South Africa ZA	56719
Egypt EG	57343
Australia AU	59315
Canada CA	59891
Pakistan PK	65591
Germany DE	130354

Where do visitors go on periodictable.com?

Subdomain	Pageviews
periodictable.com	100%

Subdomain	Pageviews per User
periodictable.com	2

Subdomain	Reach
periodictable.com	100%

How popular is periodictable.com?

Period	Global Rank	Global Rank Delta
past 3 months	83930	-61698
past month	90882	8217
past week	57244	-84896
yesterday	111138	69606

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	109568	-81851	49	110%	2	6%
30	119031	6976	44	-5.655%	2	6%
7	74471	-112991	82	220%	2.2	10%
1	113840	71194	51	-69.325%	3	-14.33%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	78448	-58022	91	96%
30	84611	9096	84	-11.18%
7	55040	-81336	14	190%
1	116725	71782	6	-64.287%

Periodictable.com Website Safety

Overview

Last Updated: 07/07/2024

Overall result - periodictable.com is safe.

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 03/24/2024

periodictable.com is safe.

Norton ConnectSafe evaluates periodictable.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 10/26/2016

periodictable.com is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

periodictable.com is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 02/23/2021

periodictable.com is safe.

McAfee assesses periodictable.com for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze periodictable.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/10/2019

periodictable.com child safety is very good.

The WOT calculates reputation of the periodictable.com. This reputation system receives ratings from users and information from third-party sources, assesses the periodictable.com for safety features and confirms, whether periodictable.com is suitable for children.

SSL Information

SSL Checker Tool

Domain	periodictable.com
Issuer Organization	Let's Encrypt
Issuer	Let's Encrypt Authority X3
Algorithm	RSA-SHA256
Valid form	11/12/2019
Expiration	02/10/2020
Signed	Certificate is not self signed
Additional Domains	graysci.com periodictable.com tgjb.com theodoregray.com www.tgjb.com www.theodoregray.com

Periodictable.com Rank History

Alexa Rank shows how popular periodictable.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If periodictable.com has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to periodictable.com and pageviews on periodictable.com over the past 3 months.

Periodictable.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 11106

ASN Title: WOLFRAM-AS - Wolfram Research, Inc., US

Last Update: 10/06/2023

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 11106
ASName: WOLFRAM-AS
ASHandle: AS11106
RegDate: 1998-04-08
Updated: 2014-04-01
Ref: https://rdap.arin.net/registry/autnum/11106

OrgName: Wolfram Research, Inc.
OrgId: WOLFRA
Address: 100 Trade Center Drive
City: Champaign
StateProv: IL
PostalCode: 61820
Country: US
RegDate: 1990-05-15
Updated: 2011-09-24
Ref: https://rdap.arin.net/registry/entity/WOLFRA

OrgAbuseHandle: NETAD43-ARIN
OrgAbuseName: netadmin
OrgAbusePhone: +1-217-398-0700
OrgAbuseEmail: netadmin@wolfram.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/NETAD43-ARIN

OrgTechHandle: NETAD43-ARIN
OrgTechName: netadmin
OrgTechPhone: +1-217-398-0700
OrgTechEmail: netadmin@wolfram.com
OrgTechRef: https://rdap.arin.net/registry/entity/NETAD43-ARIN

RTechHandle: MILLE520-ARIN
RTechName: Miller, Ken
RTechPhone: +1-217-398-0700
RTechEmail: kmiller@wolfram.com
RTechRef: https://rdap.arin.net/registry/entity/MILLE520-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Periodictable.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: PERIODICTABLE.COM
Registry Domain ID: 1474167_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2011-09-12T14:29:09Z
Creation Date: 1997-06-24T04:00:00Z
Registry Expiry Date: 2021-06-23T04:00:00Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: 480-624-2505
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: WRI-DNS0.WOLFRAM.COM
Name Server: WRI-DNS1.WOLFRAM.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-05-13T19:28:00Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
periodictable.com	140.177.205.237	86400

Host	MX Record	Priority	TTL
periodictable.com	mx2.wolfram.com	10	86400
periodictable.com	mx1.wolfram.com	10	86400

Host	NS Record	TTL
periodictable.com	wri-dns1.wolfram.com	86400
periodictable.com	wri-dns0.wolfram.com	86400

Host	TXT Record	TTL

periodictable.com
TTL: 86400
Email address: postmaster.wolfram.com
Serial: 11329
Refresh: 86400
Retry: 21600
Expire: 604800
Minimum: 50400

Periodictable.com HTML Check

HTML Validation Tool

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).

Bad value “text/html; charset=iso-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.

The “language” attribute on the “script” element is obsolete. Use the “type” attribute instead.

The “text” attribute on the “body” element is obsolete. Use CSS instead.

The “link” attribute on the “body” element is obsolete. Use CSS instead.

The “alink” attribute on the “body” element is obsolete. Use CSS instead.

The “vlink” attribute on the “body” element is obsolete. Use CSS instead.

The “bgcolor” attribute on the “body” element is obsolete. Use CSS instead.

Element “table” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)

The “width” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

The “align” attribute on the “td” element is obsolete. Use CSS instead.

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “hspace” attribute on the “img” element is obsolete. Use CSS instead.

The “vspace” attribute on the “img” element is obsolete. Use CSS instead.

The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Warnings

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Periodictable.com Desktop Performance

Last tested: 11/25/2018

Desktop Speed

86%

Optimize images

Leverage browser caching

Enable compression

Minify JavaScript

Desktop Resource Breakdown

Total Resources	13
Number of Hosts	4
Static Resources	10
JavaScript Resources	2

Periodictable.com Mobile Insights

Last tested: 11/25/2018

Mobile Usability

52%

Use legible font sizes

Size tap targets appropriately

Size content to viewport

Configure the viewport

Mobile Speed

84%

Optimize images

Leverage browser caching

Enable compression

Minify JavaScript

Mobile Resource Breakdown

Total Resources	13
Number of Hosts	4
Static Resources	10
JavaScript Resources	2

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Periodictable.com The Photographic Periodic Table of the Elements

The definitive online periodic table reference site including technical data, and photographs and descriptions of thousands of samples of the chemical...

Periodictable.com Overview

Periodictable.com Rank Summary

Periodictable.com Website Safety

Periodictable.com Rank History

Periodictable.com Hosting Information

Periodictable.com Domain Registration and Settings

Periodictable.com HTML Check

Periodictable.com Desktop Performance

Periodictable.com Mobile Insights

Periodictable.com Similar Audits

Periodictable.com Common Typos