defcon.org ▶ DEF CON® Hacking Conference

Defcon.org | Key Trends

Online Status

Offline

Server IP address resolved: No
Http response code: None
Last Checked: 02/02/2025

Defcon.org attracts 2,734 unique visitors daily, generating 6,014 pageviews. The estimated value of defcon.org is 109,354 USD. Each visitor views approximately 2.35 pages on average.

According to Majestic's traffic estimates, defcon.org ranks 10,524 globally, with the majority of its visitors coming from United States, where it holds the 58,306 position.

It is beneficial for defcon.org that their data center (provided by COMCAST-7922 - Comcast Cable Communications, LLC, US) is located in United States, as this helps reduce page load time for most visitors.

See the list of other websites hosted by COMCAST-7922 - Comcast Cable Communications, LLC, US.

Defcon.org is registered with the .ORG top-level domain. Explore additional websites within the .ORG zone.

According to the latest verification on (March 04, 2019), defcon.org has an invalid SSL certificate. Click the "Refresh" button in the Safety Information section for updated SSL details.

According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust defcon.org appears to be a safe domain.

Based on Google's Mobile-Friendly test, defcon.org is optimized for mobile and tablet devices.

Defcon.org | General Site Information

Global Rank

120,738

Average Load Time

0.40sec

Links In Count

932

Website Value

$102,200

Audience Geography. Where are defcon.org visitors located?

Country	Visitors
United States US	57.6%
India IN	10.3%
Germany DE	4.9%
Other	27.1%

Country	Pageviews
United States US	62.8%
India IN	8.6%
Germany DE	4.8%
Other	23.9%

Country	Rank
United States US	58306
India IN	88857
Germany DE	121473

Where do visitors go on defcon.org?

Subdomain	Pageviews
defcon.org	83.35%
media.defcon.org	15.28%
forum.defcon.org	1.37%

Subdomain	Pageviews per User
media.defcon.org	3
defcon.org	1.5
forum.defcon.org	1

Subdomain	Reach
defcon.org	94.21%
media.defcon.org	10.36%
forum.defcon.org	2.36%

How popular is defcon.org?

Period	Global Rank	Global Rank Delta
past 3 months	120738	18258
past month	191125	-8
past week	220752	48772
yesterday	847190	623724

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	148154	26509	33	-21%	2.2	-5.24%
30	264533	-9152	16	8%	1.7	7%
7	364524	111888	11	-37.89%	1.2	-23.6%
1	991146	599338	2	-79.431%	1	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	117345	17677	56	-16.81%
30	176112	3531	35	0.9%
7	185947	30164	33	-18.36%
1	677396	494177	9	-79.431%

Defcon.org | Safety and Security Details

Overview

Last Updated: 02/02/2025

Overall result - defcon.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: 03/21/2024

defcon.org is safe.

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

Google Safe Search

Last Updated: 10/27/2016

defcon.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

defcon.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: 02/23/2021

defcon.org is safe.

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

Web of Trust

Last Updated: 01/10/2019

defcon.org child safety is very good.

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

Defcon.org | SSL Certificate Information

SSL Checker Tool

WARNING!	Certificate download error. Previous scan results are shown below.
Domain	www.defcon.org
Issuer Organization	Unknown
Issuer	DigiCert SHA2 Extended Validation Server CA
Algorithm	RSA-SHA256
Valid form	05/26/2017
Expiration	05/31/2019
Signed	Certificate is not self signed
Additional Domains	www.defcon.org media.defcon.org forum.defcon.org defcon.org

Defcon.org | Server and Hosting Details

Server Location

Geolocation Tool

Defcon.org ASN Information

ASN Lookup Tool

ASN ID: 7922
ASN Title: COMCAST-7922 - Comcast Cable Communications, LLC, US

Last Update: 07/20/2024

ASN Whois

#
# 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: 7922
ASName: COMCAST-7922
ASHandle: AS7922
RegDate: 1997-02-14
Updated: 2016-08-31
Ref: https://rdap.arin.net/registry/autnum/7922

Comcast Cable Communications, LLC (CCCS)

OrgTechHandle: IC161-ARIN
OrgTechName: Comcast Cable Communications Inc
OrgTechPhone: +1-856-317-7200
OrgTechEmail: CNIPEO-Ip-registration@cable.comcast.com
OrgTechRef: https://rdap.arin.net/registry/entity/IC161-ARIN

OrgAbuseHandle: NAPO-ARIN
OrgAbuseName: Network Abuse and Policy Observance
OrgAbusePhone: +1-888-565-4329
OrgAbuseEmail: abuse@comcast.net
OrgAbuseRef: https://rdap.arin.net/registry/entity/NAPO-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.
#

Defcon.org | Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: defcon.org
Registry Domain ID: 63ae65838a44479787bc9d2046012f1f-LROR
Registrar WHOIS Server: http://whois.gandi.net
Registrar URL: http://www.gandi.net
Updated Date: 2024-06-01T04:08:48Z
Creation Date: 1993-06-21T04:00:00Z
Registry Expiry Date: 2029-06-20T04:00:00Z
Registrar: Gandi SAS
Registrar IANA ID: 81
Registrar Abuse Contact Email: abuse@support.gandi.net
Registrar Abuse Contact Phone: +33.170377661
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization:
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: Paris
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: FR
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: dns-1.datamerica.com
Name Server: dns-2.datamerica.com
Name Server: dns-3.datamerica.com
DNSSEC: signedDelegation
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-22T06:18:58Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
defcon.org	162.222.171.206	2419200

Host	MX Record	Priority	TTL
defcon.org	mail-1.datamerica.com	10	2419200

Host	NS Record	TTL
defcon.org	dns-1.datamerica.com	2419200
defcon.org	dns-3.datamerica.com	2419200
defcon.org	dns-2.datamerica.com	2419200

Host	TXT Record	TTL
defcon.org	85cf8594a6dc49698f01a47560a1b83e	2419200
defcon.org	google-site-verification=4k_Uhy6OOGq9v57vt2hpwKsAVEv4_FMkNGmDjWFwDKY	2419200
defcon.org	v=spf1 a:colossus.datamerica.com a:mail-1.datamerica.com -all	2419200

dns-1.datamerica.com
TTL: 2419200
Email address: hostmaster.defcon.org
Serial: 2019080163
Refresh: 43200
Retry: 600
Expire: 2419200
Minimum: 86400

Defcon.org | HTML Validation Report

HTML Validation Tool

Errors

Bad value “images/defcon-25/Election Security White Paper_Praetz_12062017.pdf” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “https://www.defcon.org/images/defcon-25/DEF CON 25 voting village report.pdf” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “images/defcon-25/DEF CON 25 voting village report.pdf” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

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

Bad value “https://media.defcon.org/DEF CON 25/” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “https://media.defcon.org/DEF CON 25/DEF CON 25 presentations/” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “https://media.defcon.org/DEF CON 25/DEF CON 25 workshops/” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “https://media.defcon.org/DEF CON 25/DEF CON 25 x-hour film contest/” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Stray end tag “a”.

Bad value “https://media.defcon.org/DEF CON 25/DEF CON 25 ctf/” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “https://media.defcon.org/DEF CON Torrents/DEF CON 25 ctf.torrent” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “https://media.defcon.org/DEF CON 25/DEF CON 25 pictures/” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “https://media.defcon.org/DEF CON 25/DEFCON-25-Receipt.pdf” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “https://media.defcon.org/DEF CON 25/DEF CON 25 presentations.torrent” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

Bad value “https://media.defcon.org/DEF CON 25/DEF CON 25 workshops.torrent” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.

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

Warnings

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

Defcon.org | Desktop Performance Insights

Last tested: 01/04/2017

Desktop

Desktop Speed

53%

Optimize images

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

Leverage browser caching

Minify HTML

Desktop Resource Breakdown

Total Resources	53
Number of Hosts	1
Static Resources	51
CSS Resources	3

Defcon.org | Mobile Performance Insights

Last tested: 08/21/2017

Mobile

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

63%

Optimize images

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

Leverage browser caching

Mobile Resource Breakdown

Total Resources	80
Number of Hosts	2
Static Resources	78
CSS Resources	3

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Defcon.org DEF CON® Hacking Conference

Started in 1992 by the Dark Tangent, DEF CON is the world's longest running and largest underground hacking conference. Hackers, corporate IT professi...

Defcon.org | Key Trends

Defcon.org | General Site Information

Defcon.org | Safety and Security Details

Defcon.org | Server and Hosting Details

Defcon.org | Domain Name Information

Defcon.org | HTML Validation Report

Defcon.org | Desktop Performance Insights

Defcon.org | Mobile Performance Insights

Defcon.org | Competitors Analysis

Defcon.org | Common Typographical Errors