Understandinguncertainty.org Understanding Uncertainty

Understandinguncertainty.org Overview

Understandinguncertainty.org ranking shows that the page is at position 59,042 over the world.

Understandinguncertainty.org hosting company servers are placed in the United Kingdom, but, unfortunately, it’s not possible to identify the countries where the bulk of understandinguncertainty.org users come from and, therefore, we couldn’t define if the distance can influence the webpage load time. See the list of other webpages hosted on AMAZON-02 - Amazon.com, Inc., US servers.

In terms of rank-to-traffic ratio, understandinguncertainty.org has 5,462 unique users per day, viewing 16,551 pages. The rank based value of understandinguncertainty.org is 17,885 USD. Every user makes 3.24 pageviews on average.

Understandinguncertainty.org boasts a link base consisting of 594 referring domains and 710 external backlinks, as revealed by the data obtained from web network scanning.

Understandinguncertainty.org top-level domain belongs to .ORG domain zone. Check other webpages in .ORG zone.

According the last verification test in August 08, 2024, understandinguncertainty.org has an expired SSL certificate issued by Let's Encrypt (expired on August 13, 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 understandinguncertainty.org is a fairly safe domain.

Understandinguncertainty.org Rank Summary

Global Rank

Average Load Time

0.00sec

Links In Count

Website Value

$16,560

Audience Geography. Where are understandinguncertainty.org visitors located?

Country	Visitors

Country	Pageviews

Country	Rank

Where do visitors go on understandinguncertainty.org?

Subdomain	Pageviews

Subdomain	Pageviews per User

Subdomain	Reach

How popular is understandinguncertainty.org?

Period	Global Rank	Global Rank Delta

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta

Understandinguncertainty.org Website Safety

Overview

Last Updated: 10/05/2025

Overall result - understandinguncertainty.org 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: 04/02/2025

understandinguncertainty.org is safe.

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

Google Safe Search

Last Updated: 09/13/2019

understandinguncertainty.org 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

understandinguncertainty.org 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

understandinguncertainty.org is safe.

McAfee assesses understandinguncertainty.org 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 understandinguncertainty.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/11/2019

understandinguncertainty.org child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	understandinguncertainty.org
Issuer Organization	Let's Encrypt
Issuer	R3
Algorithm	RSA-SHA256
Valid form	05/15/2024
Expiration	08/13/2024
Signed	Certificate is not self signed
Additional Domains	understandinguncertainty.org www.understandinguncertainty.org

Understandinguncertainty.org Rank History

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

Understandinguncertainty.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 16509

ASN Title: AMAZON-02 - Amazon.com, Inc., US

Last Update: 08/30/2025

#
# 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
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# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509

OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-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.
#

Understandinguncertainty.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: UNDERSTANDINGUNCERTAINTY.ORG
Registry Domain ID: D149163169-LROR
Registrar WHOIS Server: whois.directnic.com
Registrar URL: http://www.directnic.com
Updated Date: 2021-03-23T11:48:19Z
Creation Date: 2007-09-18T09:43:33Z
Registry Expiry Date: 2022-09-18T09:43:33Z
Registrar Registration Expiration Date:
Registrar: DNC Holdings, Inc.
Registrar IANA ID: 291
Registrar Abuse Contact Email: abuse@directnic.com
Registrar Abuse Contact Phone: +1.8778569598
Reseller:
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registrant Organization: Stats Lab Cambridge University
Registrant State/Province: Cambridgeshire
Registrant Country: GB
Name Server: NS2.IC.AC.UK
Name Server: AUTHDNS0.MATHS.CAM.AC.UK
Name Server: AUTHDNS1.MATHS.CAM.AC.UK
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2022-04-11T18:20:39Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
understandinguncertainty.org	131.111.20.216	172800

Host	MX Record	Priority	TTL

Host	NS Record	TTL
understandinguncertainty.org	authdns1.maths.cam.ac.uk	172800
understandinguncertainty.org	authdns0.maths.cam.ac.uk	172800

Host	TXT Record	TTL

authdns0.maths.cam.ac.uk
TTL: 172800
Email address: hostmaster.maths.cam.ac.uk
Serial: 2021046896
Refresh: 21600
Retry: 3600
Expire: 604800
Minimum: 172800

Understandinguncertainty.org HTML Check

HTML Validation Tool

Errors

Legacy doctype. Expected “<!DOCTYPE html>”.

When the attribute “xml:lang” in no namespace is specified, the element must also have the attribute “lang” present with the same value.

The “version” attribute on the “html” element is obsolete. You can safely omit it.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Bad value “handheld,screen and (max-width: 480px)” for attribute “media” on element “link”: Deprecated media type “handheld”. For guidance, see the Media Types section in the current Media Queries specification.

No “p” element in scope but a “p” end tag seen.

Warnings

This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.

Understandinguncertainty.org Desktop Performance

Last tested: 09/15/2015

Desktop Speed

73%

Optimize images

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

Leverage browser caching

Minify JavaScript

Minify HTML

Desktop Resource Breakdown

Total Resources	61
Number of Hosts	9
Static Resources	56
JavaScript Resources	9
CSS Resources	7

Understandinguncertainty.org Mobile Insights

Last tested: 09/15/2015

Mobile Usability

60%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Size content to viewport

Mobile Speed

61%

Optimize images

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

Leverage browser caching

Minify JavaScript

Minify HTML

Mobile Resource Breakdown

Total Resources	71
Number of Hosts	9
Static Resources	66
JavaScript Resources	9
CSS Resources	7

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Understandinguncertainty.org Understanding Uncertainty

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Understandinguncertainty.org Common Typos