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C21nm.com Overview

C21nm.com ranking shows that the page is at position 1,353,800 over the world, while the bulk of its audience is from United States, where it ranks 273,726.

It is beneficial to c21nm.com that their hosting company PRIVATESYSTEMS - PrivateSystems Networks, 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 PRIVATESYSTEMS - PrivateSystems Networks, US servers.

In terms of rank-to-traffic ratio, c21nm.com has 337 unique users per day, viewing 545 pages. The rank based value of c21nm.com is 6,314 USD. Every user makes 1.71 pageviews on average.

C21nm.com boasts a link base consisting of 309 referring domains and 354 external backlinks, as revealed by the data obtained from web network scanning.

C21nm.com top-level domain belongs to .COM domain zone. Check other webpages in .COM zone.

According the last verification test in July 29, 2024, c21nm.com has an expired SSL certificate issued by Let's Encrypt (expired on September 28, 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 and Symantec c21nm.com is a fairly safe domain.

According the Mobile-Friendly test by Google c21nm.com is nice optimized for mobile devices and tablets, however the webpage speed could be improved.

C21nm.com Rank Summary

Global Rank

1,353,800

Average Load Time

4.24sec

Links In Count

Website Value

$5,846

Audience Geography. Where are c21nm.com visitors located?

Country	Visitors
United States US	100%

Country	Pageviews
United States US	100%

Country	Rank
United States US	273726

Where do visitors go on c21nm.com?

Subdomain	Pageviews
c21nm.com	84.57%
other	15.43%

Subdomain	Pageviews per User
c21nm.com	2

Subdomain	Reach
c21nm.com	78.2%

How popular is c21nm.com?

Period	Global Rank	Global Rank Delta
past 3 months	1353800	-94850
past month	1307048	-629888
past week	1895341	836407

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	1697582	-20540	1	7%	1.6	-11.29%
30	1708149	-13234	1	0%	1	-54.369%
7	2489252	1206328	1	-67.114%	1	-41.52%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	1270873	-133546	28	20%
30	1197214	-986577	32	100%
7	1615343	601515	2	-43.68%

C21nm.com Website Safety

Overview

Last Updated: 12/25/2024

Overall result - c21nm.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: 02/19/2024

c21nm.com is safe.

Norton ConnectSafe evaluates c21nm.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 08/31/2017

c21nm.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

c21nm.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: 03/01/2021

c21nm.com is safe.

McAfee assesses c21nm.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 c21nm.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 12/25/2024

c21nm.com child safety is unknown.

The WOT calculates reputation of the c21nm.com. This reputation system receives ratings from users and information from third-party sources, assesses the c21nm.com for safety features and confirms, whether c21nm.com is suitable for children.

SSL Information

SSL Checker Tool

Domain	c21nm.net
Issuer Organization	Let's Encrypt
Issuer	R11
Algorithm	RSA-SHA256
Valid form	06/30/2024
Expiration	09/28/2024
Signed	Certificate is not self signed
Additional Domains	c21nm.com c21nm.net mail.c21nm.net www.c21nm.com www.c21nm.net

C21nm.com Rank History

Alexa Rank shows how popular c21nm.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If c21nm.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 c21nm.com and pageviews on c21nm.com over the past 3 months.

C21nm.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 63410

ASN Title: PRIVATESYSTEMS - PrivateSystems Networks, 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: 63410
ASName: PRIVATESYSTEMS
ASHandle: AS63410
RegDate: 2015-02-26
Updated: 2015-02-26
Ref: https://rdap.arin.net/registry/autnum/63410

OrgName: PrivateSystems Networks
OrgId: KNOWN-1
Address: 1379 Dilworthtown Crossing
Address: Suite 214
City: West Chester
StateProv: PA
PostalCode: 19382
Country: US
RegDate: 2008-01-04
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/KNOWN-1

OrgTechHandle: NOC2915-ARIN
OrgTechName: Network Operations Center
OrgTechPhone: +1-866-332-9894
OrgTechEmail: noc@privatesystems.net
OrgTechRef: https://rdap.arin.net/registry/entity/NOC2915-ARIN

OrgAbuseHandle: PNA44-ARIN
OrgAbuseName: PrivateSystems Networks Abuse
OrgAbusePhone: +1-866-332-9894
OrgAbuseEmail: abuse@privatesystems.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/PNA44-ARIN

OrgNOCHandle: NOC2915-ARIN
OrgNOCName: Network Operations Center
OrgNOCPhone: +1-866-332-9894
OrgNOCEmail: noc@privatesystems.net
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC2915-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.
#

C21nm.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: C21NM.COM
Registry Domain ID: 14692960_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.advancedregistrar.com
Registrar URL: http://www.netearthone.com
Updated Date: 2021-09-14T02:37:27Z
Creation Date: 1999-12-06T13:17:07Z
Registry Expiry Date: 2022-12-06T13:17:07Z
Registrar: NetEarth One Inc. d/b/a NetEarth
Registrar IANA ID: 1005
Registrar Abuse Contact Email: a-b-u-s-e.whois.field@netearthone.com
Registrar Abuse Contact Phone: +44 02030 26 99 87
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS1.DOMAINMONGER.COM
Name Server: NS2.DOMAINMONGER.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-02-12T07:07:44Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
c21nm.com	170.249.208.180	3600

Host	MX Record	Priority	TTL
c21nm.com	c21nm-com.mail.protection.outlook.com	10	3600

Host	NS Record	TTL
c21nm.com	ns31.domainmonger.com	3600
c21nm.com	ns33.domainmonger.com	3600
c21nm.com	ns32.domainmonger.com	3600
c21nm.com	ns34.domainmonger.com	3600

Host	TXT Record	TTL
c21nm.com	v=spf1 ip4:34.197.115.101 ip4:74.63.132.11 ip4:74.63.132.12 include:servers.mcsv.net include:sendgrid.net include:spf.protection.outlook.com ~all	3600

ns31.domainmonger.com
TTL: 3600
Email address: support.cloudns.net
Serial: 2023080901
Refresh: 7200
Retry: 1800
Expire: 1209600
Minimum: 3600

C21nm.com HTML Check

HTML Validation Tool

Warnings

The “type” attribute is unnecessary for JavaScript resources.

The “type” attribute for the “style” element is not needed and should be omitted.

Consider avoiding viewport values that prevent users from resizing documents.

Errors

Bad start tag in “img” in “head”.

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

Stray end tag “noscript”.

Attribute “name” not allowed on element “meta” at this point.

Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.

A “link” element must not appear as a descendant of a “body” element unless the “link” element has an “itemprop” attribute or has a “rel” attribute whose value contains “dns-prefetch”, “modulepreload”, “pingback”, “preconnect”, “prefetch”, “preload”, “prerender”, or “stylesheet”.

Stray end tag “head”.

Start tag “body” seen but an element of the same type was already open.

Cannot recover after last error. Any further errors will be ignored.

C21nm.com Desktop Performance

Last tested: 11/09/2019

Desktop Speed

49%

Optimize images

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

Avoid landing page redirects

Reduce server response time

Leverage browser caching

Minify JavaScript

Minify CSS

Enable compression

Desktop Resource Breakdown

Total Resources	153
Number of Hosts	27
Static Resources	123
JavaScript Resources	57
CSS Resources	30

C21nm.com Mobile Insights

Last tested: 09/10/2018

Mobile Usability

92%

Size tap targets appropriately

Size content to viewport

Mobile Speed

15%

Enable compression

Leverage browser caching

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

Avoid landing page redirects

Reduce server response time

Minify JavaScript

Prioritize visible content

Optimize images

Minify CSS

Mobile Resource Breakdown

Total Resources	124
Number of Hosts	16
Static Resources	99
JavaScript Resources	50
CSS Resources	27

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C21nm.com Home | CENTURY 21 New Millennium

Serving Local Communities Across the DMV. 27 Offices Throughout D.C., Maryland and Virginia. Our relentless agents combine the latest in technology, m...

C21nm.com Overview

C21nm.com Rank Summary

C21nm.com Website Safety

C21nm.com Rank History

C21nm.com Hosting Information

C21nm.com Domain Registration and Settings

C21nm.com HTML Check

C21nm.com Desktop Performance

C21nm.com Mobile Insights

C21nm.com Similar Audits

C21nm.com Common Typos