Divisbyzero.com David Richeson: Division by Zero

Professor of Mathematics and the John J. Curley '60 and Ann Conser Curley '63 Faculty Chair in the Liberal Arts at Dickinson College [Icons made by Fr...

Divisbyzero.com Overview

Divisbyzero.com ranking shows that the page is at position 1,282,636 over the world.

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Divisbyzero.com boasts a link base consisting of 303 referring domains and 372 external backlinks, as revealed by the data obtained from web network scanning.

Divisbyzero.com top-level domain belongs to .COM domain zone. Check other webpages in .COM zone.

According the last verification test in August 02, 2024, divisbyzero.com has an expired SSL certificate issued by Let's Encrypt (expired on September 06, 2024). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Let's Encrypt.

Based on data from Google Safe Browsing, Google Safe Search, Symantec and Web of Trust divisbyzero.com is a fairly safe domain.

According the Mobile-Friendly test by Google divisbyzero.com is nice optimized for mobile devices and tablets.

Divisbyzero.com Rank Summary

Global Rank

1,282,636

Average Load Time

0.00sec

Links In Count

111

Website Value

$5,846

Audience Geography. Where are divisbyzero.com visitors located?

Country	Visitors

Country	Pageviews

Country	Rank

Where do visitors go on divisbyzero.com?

Subdomain	Pageviews

Subdomain	Pageviews per User

Subdomain	Reach

How popular is divisbyzero.com?

Period	Global Rank	Global Rank Delta
past 3 months	1282636	-353657
past month	2647146	-617578

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	1728131	-585296	1	40%	1	20%
30	3168196	-429140	0	50%	1	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	1129245	-213199	3	20%
30	2359063	-512604	1	50%

Divisbyzero.com Website Safety

Overview

Last Updated: 11/13/2024

Overall result - divisbyzero.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: 04/02/2024

divisbyzero.com is safe.

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

Google Safe Search

Last Updated: 01/12/2017

divisbyzero.com is safe.

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Google Safe Browsing

Last Updated: 01/09/2019

divisbyzero.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: 03/02/2021

divisbyzero.com is safe.

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Web of Trust

Last Updated: 01/11/2019

divisbyzero.com child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	tls.automattic.com
Issuer Organization	Let's Encrypt
Issuer	E6
Algorithm	ecdsa-with-SHA384
Valid form	06/08/2024
Expiration	09/06/2024
Signed	Certificate is not self signed
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Divisbyzero.com Rank History

Alexa Rank shows how popular divisbyzero.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If divisbyzero.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 divisbyzero.com and pageviews on divisbyzero.com over the past 3 months.

Divisbyzero.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 2635

ASN Title: AUTOMATTIC - Automattic, Inc, US

Last Update: 03/01/2024

#
# 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: 2635
ASName: AUTOMATTIC
ASHandle: AS2635
RegDate: 2012-10-01
Updated: 2012-10-01
Ref: https://rdap.arin.net/registry/autnum/2635

OrgName: Automattic, Inc
OrgId: AUTOM-93
Address: 60 29th Street #343
City: San Francisco
StateProv: CA
PostalCode: 94110
Country: US
RegDate: 2011-10-05
Updated: 2018-06-04
Ref: https://rdap.arin.net/registry/entity/AUTOM-93

OrgNOCHandle: NOC12276-ARIN
OrgNOCName: NOC
OrgNOCPhone: +1-877-273-8550
OrgNOCEmail: ipadmin@automattic.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC12276-ARIN

OrgTechHandle: NOC12276-ARIN
OrgTechName: NOC
OrgTechPhone: +1-877-273-8550
OrgTechEmail: ipadmin@automattic.com
OrgTechRef: https://rdap.arin.net/registry/entity/NOC12276-ARIN

OrgAbuseHandle: ABUSE3970-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-877-273-8550
OrgAbuseEmail: abuse@automattic.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE3970-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.
#

Divisbyzero.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: DIVISBYZERO.COM
Registry Domain ID: 1544906030_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.wildwestdomains.com
Registrar URL: http://www.wildwestdomains.com
Updated Date: 2022-01-31T13:14:37Z
Creation Date: 2009-03-02T03:45:17Z
Registry Expiry Date: 2023-03-02T03:45:17Z
Registrar: Wild West Domains, LLC
Registrar IANA ID: 440
Registrar Abuse Contact Email: abuse@wildwestdomains.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: NS1.WORDPRESS.COM
Name Server: NS2.WORDPRESS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-03-10T18:07:17Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Divisbyzero.com HTML Check

HTML Validation Tool

Warnings

The “banner” role is unnecessary for element “header”.

The “navigation” role is unnecessary for element “nav”.

The “main” role is unnecessary for element “main”.

The “contentinfo” role is unnecessary for element “footer”.

Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).

Errors

Duplicate attribute “rel”.

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

Divisbyzero.com Desktop Performance

Last tested: 04/25/2016

Desktop Speed

81%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Minify JavaScript

Optimize images

Reduce server response time

Minify CSS

Desktop Resource Breakdown

Total Resources	135
Number of Hosts	21
Static Resources	109
JavaScript Resources	18
CSS Resources	11

Divisbyzero.com Mobile Insights

Last tested: 11/29/2019

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

60%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Optimize images

Minify JavaScript

Leverage browser caching

Mobile Resource Breakdown

Total Resources	37
Number of Hosts	15
Static Resources	24
JavaScript Resources	9
CSS Resources	8

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Divisbyzero.com David Richeson: Division by Zero

Professor of Mathematics and the John J. Curley '60 and Ann Conser Curley '63 Faculty Chair in the Liberal Arts at Dickinson College [Icons made by Fr...

Divisbyzero.com Overview

Divisbyzero.com Rank Summary

Divisbyzero.com Website Safety

Divisbyzero.com Rank History

Divisbyzero.com Hosting Information

Divisbyzero.com Domain Registration and Settings

Divisbyzero.com HTML Check

Divisbyzero.com Desktop Performance

Divisbyzero.com Mobile Insights

Divisbyzero.com Similar Audits

Divisbyzero.com Common Typos