C40.org C40 Cities - A global network of mayors taking urgent climate action

C40 Cities is a global network of nearly 100 mayors of the world’s leading cities that are united in action to confront the climate crisis.

C40.org Overview

C40.org is the official website of C40, a network of mayors from around the world that are committed to taking action on climate change. The website is designed to provide information about C40 and its programs, as well as news and resources related to climate action.

The website has a simple and clean design that is easy to navigate. The homepage features a full-width banner image with a call to action to join the network, followed by a brief introduction to C40 and links to key sections of the website. The main navigation menu includes links to About, Cities, Programs, News, Resources, and Join.

The About section provides information about C40's mission, history, governance, and team. The Cities section features a map of the network and allows users to explore member cities and their climate action plans. The Programs section provides information about C40's initiatives, partnerships, and events. The News section features updates about C40's activities and accomplishments, as well as relevant news from around the world. The Resources section includes publications, case studies, and tools related to climate action. The Join section provides information about becoming a member of C40.

The website is hosted by Cloudflare, a reputable hosting company based in the United States. The SSL certificate is issued by Let's Encrypt, which is a trusted and widely recognized certificate authority.

Based on the content and tone of the website, it is safe to say that this is a family-friendly website that is suitable for all ages. There is no content that is inappropriate or offensive.

According to PageSpeed Insights, the website has a speed score of 100 and a usability score of 99. This indicates that the website is optimized for fast loading and a good user experience on both desktop and mobile devices.

Overall, c40.org is a well-designed and informative website that serves as a valuable resource for anyone interested in climate action and sustainability.

C40.org Rank Summary

Global Rank

454,675

Average Load Time

3.20sec

Links In Count

589

Website Value

$17,538

Audience Geography. Where are c40.org visitors located?

Country	Visitors
United States US	20.6%
United Kingdom GB	15.1%
India IN	6%
Other	57.6%

Country	Pageviews
United States US	19%
United Kingdom GB	14.8%
India IN	4.7%
Other	61.3%

Country	Rank
United Kingdom GB	101183
India IN	322082
United States US	332974

Where do visitors go on c40.org?

Subdomain	Pageviews
c40.org	99.65%
other	0.35%

Subdomain	Pageviews per User
c40.org	1.8

Subdomain	Reach
c40.org	99.36%

How popular is c40.org?

Period	Global Rank	Global Rank Delta
past 3 months	454675	169237
past month	456878	-165870
past week	611876	286308
yesterday	896197	-930

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	594646	271846	5	-54.657%	1.8	-27.46%
30	594544	-243929	6	70%	1.8	10%
7	799724	318506	4	-51.28%	2	10%
1	862477	-200394	3	50%	2	100%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	424776	135353	11	-37.5%
30	431395	-140396	11	50%
7	572301	285595	8	-57.268%
1	1053853	344628	6	-23.65%

C40.org Website Safety

Overview

Last Updated: 12/26/2024

Overall result - c40.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: 04/03/2024

c40.org is safe.

Norton ConnectSafe evaluates c40.org for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 01/14/2017

c40.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

c40.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: 03/03/2021

c40.org is safe.

McAfee assesses c40.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 c40.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/11/2019

c40.org child safety is very good.

The WOT calculates reputation of the c40.org. This reputation system receives ratings from users and information from third-party sources, assesses the c40.org for safety features and confirms, whether c40.org is suitable for children.

SSL Information

SSL Checker Tool

Domain	c40.org
Issuer Organization	Google Trust Services
Issuer	WE1
Algorithm	ecdsa-with-SHA256
Valid form	09/25/2024
Expiration	12/24/2024
Signed	Certificate is not self signed
Additional Domains	c40.org *.c40.org

C40.org Rank History

Alexa Rank shows how popular c40.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If c40.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 c40.org and pageviews on c40.org over the past 3 months.

C40.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 13335

ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Last Update: 10/28/2024

#
# 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.
#

C40.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

This domain is protected by the Registry Lock service. If you are the registrant and wish to take action on this lock, please contact your registrar.

Domain Name: c40.org
Registry Domain ID: e4c98edef2584c5cbdd2e6f34fa5b44b-LROR
Registrar WHOIS Server: http://whois.cscglobal.com
Registrar URL: http://www.cscglobal.com/global/web/csc/digital-brand
Updated Date: 2023-02-14T22:18:48Z
Creation Date: 2007-08-01T04:04:07Z
Registry Expiry Date: 2026-08-01T04:04:07Z
Registrar: CSC Corporate Domains, Inc.
Registrar IANA ID: 299
Registrar Abuse Contact Email: domainabuse@cscglobal.com
Registrar Abuse Contact Phone: +1.8887802723
Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: CSC Corporate Domains, Inc.
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: DE
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
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: udns1.cscdns.net
Name Server: udns2.cscdns.uk
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-11-11T04:05:08Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
c40.org	162.159.134.42	3600

Host	MX Record	Priority	TTL
c40.org	alt3.aspmx.l.google.com	10	14400
c40.org	alt4.aspmx.l.google.com	10	14400
c40.org	alt2.aspmx.l.google.com	5	14400
c40.org	alt1.aspmx.l.google.com	5	14400
c40.org	aspmx.l.google.com	0	14400

Host	NS Record	TTL
c40.org	udns1.cscdns.net	14400
c40.org	udns2.cscdns.uk	14400

Host	TXT Record	TTL
c40.org	ca3-ba043acfa10347bf87733a7269474909	14400
c40.org	google-site-verification=P2HUeBp7_Y2TUd0nuFQDyWwtg8vcfLtg_HhwF_k1BfQ	14400
c40.org	google-site-verification=VgrKSnQNxUTThbTuyt2t6wWf1h3sNA2xM_spBkn85ng	14400
c40.org	sophos-domain-verification=425a8e65d9216e0541002caa4216956d94d41281b7ed292a7f3eaa305e26f3a3	14400
c40.org	apple-domain-verification=tSZP7HgzgBq8rXtJ	14400
c40.org	ca3-7c7512e6306140a9b84bce6c1b6fa6cf	14400
c40.org	mentimeter-00bb42f9-906d-4658-a68e-d3dd20962123	14400
c40.org	v=spf1 include:_spf.google.com include:spf.mailjet.com include:spf.protection.outlook.com include:spfa.mailendo.com include:_spf.c40.abzt.de include:_spf1.formassembly.com ~all	14400

udns1.cscdns.net
TTL: 14400
Email address: hostmaster.cscdns.net
Serial: 2019101301
Refresh: 28800
Retry: 7200
Expire: 604800
Minimum: 14400

C40.org HTML Check

HTML Validation Tool

Errors

Attribute “initial-scale” not allowed on element “meta” at this point.

A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.

Duplicate ID “clip-path”.

Bad character “ ” after “<”. Probable cause: Unescaped “<”. Try escaping it as “<”.

Text not allowed in element “symbol” in this context.

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

Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)

Warnings

The first occurrence of ID “clip-path” was here.

Empty heading.

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

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

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).

C40.org Desktop Performance

Last tested: 05/19/2017

Desktop Speed

Optimize images

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

Enable compression

Leverage browser caching

Desktop Resource Breakdown

Total Resources	56
Number of Hosts	17
Static Resources	25
JavaScript Resources	13
CSS Resources	4

C40.org Mobile Insights

Last tested: 05/17/2017

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

Optimize images

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

Enable compression

Leverage browser caching

Mobile Resource Breakdown

Total Resources	56
Number of Hosts	17
Static Resources	25
JavaScript Resources	13
CSS Resources	4

C40.org Common Typos

www.c40.com
www.c40.net
www.c40.org
www.c40.info
www.c40.biz
www.c40.us
www.c40.mobi
www.40.org
www.c40.org
www.x40.org
www.cx40.org
www.xc40.org
www.d40.org
www.cd40.org
www.dc40.org
www.f40.org
www.cf40.org
www.fc40.org
www.v40.org
www.cv40.org
www.vc40.org
www.c0.org
www.c4.org

C40.org C40 Cities - A global network of mayors taking urgent climate action

C40 Cities is a global network of nearly 100 mayors of the world’s leading cities that are united in action to confront the climate crisis.

C40.org Overview

C40.org Rank Summary

C40.org Website Safety

C40.org Rank History

C40.org Hosting Information

C40.org Domain Registration and Settings

C40.org HTML Check

C40.org Desktop Performance

C40.org Mobile Insights

C40.org Similar Audits

C40.org Common Typos