Calctool.org CalcTool

CalcTool provides 400 problem solvers, mainly connected with physics (but not limited to it!). The calculators are so easy and fast that you’ll never ...

Calctool.org Overview

Calctool.org ranking shows that the page is at position 210,495 over the world, while the bulk of its audience is from United States, where it ranks 74,804.

It is beneficial to calctool.org that their hosting company AMAZON-AES - Amazon.com, Inc., US servers are located in United States, as that reduces page load time for the majority of their users. See the list of other webpages hosted on AMAZON-AES - Amazon.com, Inc., US servers.

In terms of rank-to-traffic ratio, calctool.org has 3,195 unique users per day, viewing 3,511 pages. The rank based value of calctool.org is 63,860 USD. Every user makes 1.19 pageviews on average.

Calctool.org boasts a link base consisting of 698 referring domains and 803 external backlinks, as revealed by the data obtained from web network scanning.

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

According the last verification test in October 10, 2024, calctool.org has a valid and up-to-date SSL certificate issued by Let's Encrypt , certificate expiration date: January 01, 2025. 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 calctool.org is a fairly safe domain.

Based on Mobile-Friendly test by Google calctool.org is poorly optimized for mobile phones and tablets. Remember that optimizing your website design for mobile devices ensures that all of your web pages perform well on all devices.

Calctool.org Rank Summary

Global Rank

210,495

Average Load Time

1.91sec

Links In Count

243

Website Value

$59,130

Audience Geography. Where are calctool.org visitors located?

Country	Visitors
United States US	53.1%
Canada CA	7.6%
India IN	2.4%
Other	36.9%

Country	Pageviews
United States US	53.5%
Canada CA	7.6%
India IN	2.2%
Other	36.7%

Country	Rank
Canada CA	57887
United States US	74804
India IN	325678

Where do visitors go on calctool.org?

Subdomain	Pageviews
calctool.org	100%

Subdomain	Pageviews per User
calctool.org	1.1

Subdomain	Reach
calctool.org	100%

How popular is calctool.org?

Period	Global Rank	Global Rank Delta
past 3 months	210495	-33488
past month	234789	43284
past week	251033	-47789
yesterday	605663	31185

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	355197	-53833	11	20%	1.1	-0.909%
30	401253	80484	9	-26.67%	1.1	-6.087%
7	438084	-65478	8	10%	1	-5.455%
1	731474	109941	3	-21.48%	1	-27.54%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	168493	-27359	36	20%
30	188292	31944	31	-21.88%
7	199528	-45894	3	20%
1	541628	-77599	1	8%

Calctool.org Website Safety

Overview

Last Updated: 12/26/2024

Overall result - calctool.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: 03/25/2024

calctool.org is safe.

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

Google Safe Search

Last Updated: 11/13/2016

calctool.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

calctool.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: 02/25/2021

calctool.org is safe.

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

Web of Trust

Last Updated: 01/10/2019

calctool.org child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	calctool.org
Issuer Organization	Let's Encrypt
Issuer	R11
Algorithm	RSA-SHA256
Valid form	10/03/2024
Expiration	01/01/2025
Signed	Certificate is not self signed
Additional Domains	*.calctool.org calctool.org

Calctool.org Rank History

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

Calctool.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 14618

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

Last Update: 07/31/2024

#
# 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: 14618
ASName: AMAZON-AES
ASHandle: AS14618
RegDate: 2005-11-04
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/14618

OrgName: Amazon.com, Inc.
OrgId: AMAZO-4
Address: Amazon Web Services, Inc.
Address: P.O. Box 81226
City: Seattle
StateProv: WA
PostalCode: 98108-1226
Country: US
RegDate: 2005-09-29
Updated: 2017-01-28
Comment: For details of this service please see
Comment: http://ec2.amazonaws.com/
Ref: https://rdap.arin.net/registry/entity/AMAZO-4

OrgNOCHandle: AANO1-ARIN
OrgNOCName: Amazon AWS Network Operations
OrgNOCPhone: +1-206-266-4064
OrgNOCEmail: amzn-noc-contact@amazon.com
OrgNOCRef: https://rdap.arin.net/registry/entity/AANO1-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

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

RTechHandle: ANO24-ARIN
RTechName: Amazon EC2 Network Operations
RTechPhone: +1-206-266-4064
RTechEmail: amzn-noc-contact@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/ANO24-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.
#

Calctool.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: calctool.org
Registry Domain ID: b94986384cc54133b5ff9695f30121c5-LROR
Registrar WHOIS Server: http://whois.ovh.com
Registrar URL: http://www.ovh.com
Updated Date: 2023-08-30T09:32:43Z
Creation Date: 2008-02-11T07:34:56Z
Registry Expiry Date: 2025-02-11T07:34:56Z
Registrar: OVH sas
Registrar IANA ID: 433
Registrar Abuse Contact Email: abuse@ovh.net
Registrar Abuse Contact Phone: +33.972101007
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Omni Calculator
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province:
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: PL
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns1.dnsimple.com
Name Server: ns2.dnsimple.com
Name Server: ns3.dnsimple.com
Name Server: ns4.dnsimple.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-10-11T09:09:36Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
calctool.org	216.222.205.104	10800

Host	MX Record	Priority	TTL
calctool.org	calctool.org	10	10800

Host	NS Record	TTL
calctool.org	ns1.myhostcenter.com	10800

Host	TXT Record	TTL

ns1.myhostcenter.com
TTL: 10800
Email address: postmaster.vds2000.com
Serial: 1107040001
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 86400

Calctool.org HTML Check

HTML Validation Tool

Errors

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

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

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

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

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

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

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

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

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

Element “input” is missing required attribute “alt”.

The “font” element is obsolete. Use CSS instead.

The “big” element is obsolete. Use CSS instead.

Warnings

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

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Calctool.org Desktop Performance

Last tested: 11/22/2018

Desktop Speed

89%

Optimize images

Reduce server response time

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

Enable compression

Desktop Resource Breakdown

Total Resources	19
Number of Hosts	3
Static Resources	16
JavaScript Resources	1

Calctool.org Mobile Insights

Last tested: 11/22/2018

Mobile Usability

58%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Mobile Speed

63%

Reduce server response time

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

Optimize images

Enable compression

Leverage browser caching

Minify CSS

Mobile Resource Breakdown

Total Resources	20
Number of Hosts	3
Static Resources	17
JavaScript Resources	1
CSS Resources	1

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Calctool.org CalcTool

CalcTool provides 400 problem solvers, mainly connected with physics (but not limited to it!). The calculators are so easy and fast that you’ll never ...

Calctool.org Overview

Calctool.org Rank Summary

Calctool.org Website Safety

Calctool.org Rank History

Calctool.org Hosting Information

Calctool.org Domain Registration and Settings

Calctool.org HTML Check

Calctool.org Desktop Performance

Calctool.org Mobile Insights

Calctool.org Similar Audits

Calctool.org Common Typos