Calhoun.org Pre K-12 Independent School | NYC | Calhoun School

The Calhoun School is a co-ed progressive, independent school on Manhattan's Upper West Side. Our private school serves students from preschool-12th g...

Calhoun.org Overview

Calhoun.org ranking shows that the page is at position 397,743 over the world, while the bulk of its audience is from United States, where it ranks 101,599.

It is beneficial to calhoun.org that their hosting company CLOUDFLARENET - Cloudflare, 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 CLOUDFLARENET - Cloudflare, Inc., US servers.

In terms of rank-to-traffic ratio, calhoun.org has 397 unique users per day, viewing 1,764 pages. The rank based value of calhoun.org is 35,478 USD. Every user makes 4.76 pageviews on average.

Calhoun.org boasts a link base consisting of 256 referring domains and 313 external backlinks, as revealed by the data obtained from web network scanning.

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

According the last verification test in December 27, 2024, calhoun.org has an invalid SSL certificate. Click button “Update” SSL Information at the Safety Information section.

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

According the Mobile-Friendly test by Google calhoun.org is nice optimized for mobile devices and tablets, however the webpage speed could be improved.

Calhoun.org Rank Summary

Global Rank

397,743

Average Load Time

1.30sec

Links In Count

111

Website Value

$32,850

Audience Geography. Where are calhoun.org visitors located?

Country	Visitors
United States US	97.8%
Other	2.2%

Country	Pageviews
United States US	96%
Other	4%

Country	Rank
United States US	101599

Where do visitors go on calhoun.org?

Subdomain	Pageviews
calhoun.org	95.97%
other	4.1%

Subdomain	Pageviews per User
calhoun.org	4.6

Subdomain	Reach
calhoun.org	100%

How popular is calhoun.org?

Period	Global Rank	Global Rank Delta
past 3 months	397743	-16291
past month	497690	89716
past week	422410	-435893
yesterday	323423	0

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	322330	-51697	12	27%	4.4	20%
30	383520	67949	1	-23.75%	4.8	-1.84%
7	260321	-535192	17	300%	7	100%
1	92655	0	67	0%	20	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	461854	435	1	4%
30	594571	105500	76	-22.22%
7	559944	-370000	9	90%
1	567053	0	1	0%

Calhoun.org Website Safety

Overview

Last Updated: 12/27/2024

Overall result - calhoun.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: 02/06/2024

calhoun.org is safe.

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

Google Safe Search

Last Updated: 01/31/2017

calhoun.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

calhoun.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: 01/14/2021

calhoun.org is safe.

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

Web of Trust

Last Updated: 01/11/2019

calhoun.org child safety is very good.

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

SSL Information

SSL Checker Tool

WARNING!	Certificate download error. Previous scan results are shown below.
Domain	Unknown
Issuer Organization	Unknown
Issuer	Unknown
Algorithm	Unknown
Valid form	Unknown
Expiration	Unknown
Signed	No information
Additional Domains

Calhoun.org Rank History

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

Calhoun.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 13335

ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Last Update: 12/20/2024

#
# 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: 13335
ASName: CLOUDFLARENET
ASHandle: AS13335
RegDate: 2010-07-14
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/autnum/13335

OrgName: Cloudflare, Inc.
OrgId: CLOUD14
Address: 101 Townsend Street
City: San Francisco
StateProv: CA
PostalCode: 94107
Country: US
RegDate: 2010-07-09
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/entity/CLOUD14

OrgTechHandle: ADMIN2521-ARIN
OrgTechName: Admin
OrgTechPhone: +1-650-319-8930
OrgTechEmail: rir@cloudflare.com
OrgTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

OrgAbuseHandle: ABUSE2916-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-650-319-8930
OrgAbuseEmail: abuse@cloudflare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

OrgNOCHandle: NOC11962-ARIN
OrgNOCName: NOC
OrgNOCPhone: +1-650-319-8930
OrgNOCEmail: noc@cloudflare.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RNOCHandle: NOC11962-ARIN
RNOCName: NOC
RNOCPhone: +1-650-319-8930
RNOCEmail: noc@cloudflare.com
RNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RTechHandle: ADMIN2521-ARIN
RTechName: Admin
RTechPhone: +1-650-319-8930
RTechEmail: rir@cloudflare.com
RTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

RAbuseHandle: ABUSE2916-ARIN
RAbuseName: Abuse
RAbusePhone: +1-650-319-8930
RAbuseEmail: abuse@cloudflare.com
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-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.
#

Calhoun.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: CALHOUN.ORG
Registry Domain ID: D767286-LROR
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com
Updated Date: 2021-10-18T14:08:07Z
Creation Date: 1996-02-20T05:00:00Z
Registry Expiry Date: 2031-02-21T05:00:00Z
Registrar Registration Expiration Date:
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Registrar Abuse Contact Email: domain.operations@web.com
Registrar Abuse Contact Phone: +1.8777228662
Reseller:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registrant Organization:
Registrant State/Province: FL
Registrant Country: US
Name Server: NS25.WORLDNIC.COM
Name Server: NS26.WORLDNIC.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2022-02-12T15:42:02Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
calhoun.org	50.56.64.4	3600

Host	MX Record	Priority	TTL
calhoun.org	alt4.aspmx.l.google.com	10	3600
calhoun.org	alt1.aspmx.l.google.com	5	3600
calhoun.org	alt2.aspmx.l.google.com	5	3600
calhoun.org	aspmx.l.google.com	1	3600
calhoun.org	alt3.aspmx.l.google.com	10	3600

Host	NS Record	TTL
calhoun.org	ns25.worldnic.com	7200
calhoun.org	ns26.worldnic.com	7200

Host	TXT Record	TTL
calhoun.org	apple-domain-verification=NBq0grCIM0GJH3IW	3600
calhoun.org	lb1dbokuurb2nd632up5cjc67n	900
calhoun.org	google-site-verification=RDkjZqG9-M_stMXzTXN9vN66boXEUTf19FU_e1dRZ-E	3600
calhoun.org	v=spf1 include:_spf.google.com ip4:173.203.146.8 ip4:173.203.146.9 ~all	3600
calhoun.org	MS=6F4A3A3D551847EC81A8294524150270CF9354B3	3600
calhoun.org	ZOOM_verify_NiOtzE24R5OvVrWviSRA2A	3600
calhoun.org	duerllmlvcq62ig83pcj2bgli7	900

ns25.worldnic.com
TTL: 7200
Email address: namehost.WORLDNIC.COM
Serial: 123071712
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 3600

Calhoun.org HTML Check

HTML Validation Tool

Warnings

The “type” attribute is unnecessary for JavaScript resources.

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Errors

The element “footer” must not appear as a descendant of the “header” element.

Element “img” is missing required attribute “src”.

Stray end tag “img”.

The element “header” must not appear as a descendant of the “footer” element.

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

The “itemtype” attribute must not be specified on elements that do not have an “itemscope” attribute specified.

The “itemprop” attribute was specified, but the element is not a property of any item.

Calhoun.org Desktop Performance

Last tested: 09/21/2015

Desktop Speed

42%

Optimize images

Enable compression

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

Leverage browser caching

Minify CSS

Minify JavaScript

Prioritize visible content

Minify HTML

Reduce server response time

Desktop Resource Breakdown

Total Resources	83
Number of Hosts	17
Static Resources	60
JavaScript Resources	13
CSS Resources	13

Calhoun.org Mobile Insights

Last tested: 06/30/2019

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

36%

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

Optimize images

Avoid landing page redirects

Enable compression

Prioritize visible content

Leverage browser caching

Minify CSS

Minify JavaScript

Mobile Resource Breakdown

Total Resources	57
Number of Hosts	15
Static Resources	32
JavaScript Resources	13
CSS Resources	3

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Calhoun.org Pre K-12 Independent School | NYC | Calhoun School

The Calhoun School is a co-ed progressive, independent school on Manhattan's Upper West Side. Our private school serves students from preschool-12th g...

Calhoun.org Overview

Calhoun.org Rank Summary

Calhoun.org Website Safety

Calhoun.org Rank History

Calhoun.org Hosting Information

Calhoun.org Domain Registration and Settings

Calhoun.org HTML Check

Calhoun.org Desktop Performance

Calhoun.org Mobile Insights

Calhoun.org Similar Audits

Calhoun.org Common Typos