defcon.org Website Information
Daily Unique Visits: 133,008
Daily Page Views: 798,048
Income Per Day: $1,596
Estimated Value: $1,149,120
This website is located in United States and is using following IP address 162.222.171.206. See the complete list of popular websites hosted in United States.
defcon.org is registered under .ORG top-level domain. Please check other sites in .ORG zone.
Website defcon.org is using the following name servers:
- dns-1.datamerica.com
- dns-3.datamerica.com
- dns-2.datamerica.com
and is probably hosted by COMCAST-7922 - Comcast Cable Communications, LLC, US. See the full list of other websites hosted by COMCAST-7922 - Comcast Cable Communications, LLC, US.
The highest website defcon.org position in Alexa rank database was 10654 and the lowest rank position was 12186. Current position of defcon.org in Alexa rank database is 10783.
Desktop speed score of defcon.org (53/100) is better than the results of 27.05% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of defcon.org (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed score of defcon.org (63/100) is better than the results of 61.76% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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defcon.org Alexa Rank
The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.
defcon.org whois
WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.
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
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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
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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
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
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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
defcon.org server information
Servers Location
defcon.org desktop page speed rank
Last tested: 2017-01-04
Desktop Speed
Bad
53/100
defcon.org Desktop Speed Test Quick Summary
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priority - 6Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
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priority - 1Leverage browser caching
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priority - 0Minify HTML
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defcon.org Desktop Resource Breakdown
| Total Resources | 53 |
| Number of Hosts | 1 |
| Static Resources | 51 |
| CSS Resources | 3 |
defcon.org mobile page speed rank
Last tested: 2017-08-21
Mobile Speed
Bad
63/100
defcon.org Mobile Speed Test Quick Summary
priority - 35Optimize images
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priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://www.defcon.org/html/dc-css/base.css
https://www.defcon.org/html/dc-css/skeleton.css
https://www.defcon.org/html/dc-css/layout.css
https://www.defcon.org/html/dc-css/skeleton.css
https://www.defcon.org/html/dc-css/layout.css
priority - 2Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://www.defcon.org/html/dc-css/base.css (2 hours)
https://www.defcon.org/html/dc-css/layout.css (2 hours)
https://www.defcon.org/html/dc-css/skeleton.css (2 hours)
https://www.defcon.org/html/dc-css/layout.css (2 hours)
https://www.defcon.org/html/dc-css/skeleton.css (2 hours)
defcon.org Mobile Resource Breakdown
| Total Resources | 80 |
| Number of Hosts | 2 |
| Static Resources | 78 |
| CSS Resources | 3 |
defcon.org mobile page usability
Last tested: 2017-08-21
Mobile Usability
Good
99/100
defcon.org Mobile Usability Test Quick Summary
priority - 0Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
The tap target
The tap target
<a href="https://defcongroups.org">DEF CON Group</a> and 1 others are close to other tap targets.The tap target
<a href="https://media.…presentations/">presentations</a> and 10 others are close to other tap targets.The tap target
<a href="https://forum.defcon.org">Forums</a> and 1 others are close to other tap targets.defcon.org HTML validation
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.
Line: 336 Column: 2 - 78
"...lpha"> <a href="images/defcon-25/Election Security White Paper_Praetz_12062017.pdf"><h2 cl..." Line: 339 Column: 2 - 78
"...17</h3> <a href="images/defcon-25/Election Security White Paper_Praetz_12062017.pdf"><img c..." Line: 343 Column: 30 - 106
"...lan here: <a href="images/defcon-25/Election Security White Paper_Praetz_12062017.pdf">https:..."
"...lpha"> <a href="images/defcon-25/Election Security White Paper_Praetz_12062017.pdf"><h2 cl..." Line: 339 Column: 2 - 78
"...17</h3> <a href="images/defcon-25/Election Security White Paper_Praetz_12062017.pdf"><img c..." Line: 343 Column: 30 - 106
"...lan here: <a href="images/defcon-25/Election Security White Paper_Praetz_12062017.pdf">https:..."
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.
Line: 361 Column: 10 - 96
"... You can <a href="https://www.defcon.org/images/defcon-25/DEF CON 25 voting village report.pdf">read t..."
"... You can <a href="https://www.defcon.org/images/defcon-25/DEF CON 25 voting village report.pdf">read t..."
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.
Line: 836 Column: 2 - 65
"...lpha"> <a href="images/defcon-25/DEF CON 25 voting village report.pdf"><h2 cl..." Line: 839 Column: 2 - 65
"...17</h3> <a href="images/defcon-25/DEF CON 25 voting village report.pdf"><img c..." Line: 841 Column: 85 - 148
"...g-awaited <a href="images/defcon-25/DEF CON 25 voting village report.pdf">DEF CO..."
"...lpha"> <a href="images/defcon-25/DEF CON 25 voting village report.pdf"><h2 cl..." Line: 839 Column: 2 - 65
"...17</h3> <a href="images/defcon-25/DEF CON 25 voting village report.pdf"><img c..." Line: 841 Column: 85 - 148
"...g-awaited <a href="images/defcon-25/DEF CON 25 voting village report.pdf">DEF CO..."
Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)
Line: 1035 Column: - 147
"...mart Gun, & Max Bazaliy - J..."
"...mart Gun, & Max Bazaliy - J..."
Bad value “https://media.defcon.org/DEF CON 25/” for attribute “href” on element “a”: Illegal character in path segment: space is not allowed.
Line: 1094 Column: 2 - 48
"...lpha"> <a href="https://media.defcon.org/DEF CON 25/"><h2 cl..." Line: 1097 Column: 2 - 48
"...17</h3> <a href="https://media.defcon.org/DEF CON 25/"><img c..." Line: 1210 Column: 2 - 48
"...lpha"> <a href="https://media.defcon.org/DEF CON 25/"><h2 cl..." Line: 1213 Column: 2 - 48
"...17</h3> <a href="https://media.defcon.org/DEF CON 25/"><img c..." Line: 1215 Column: 55 - 101
"...ta on the <a href="https://media.defcon.org/DEF CON 25/">DEF CO..."
"...lpha"> <a href="https://media.defcon.org/DEF CON 25/"><h2 cl..." Line: 1097 Column: 2 - 48
"...17</h3> <a href="https://media.defcon.org/DEF CON 25/"><img c..." Line: 1210 Column: 2 - 48
"...lpha"> <a href="https://media.defcon.org/DEF CON 25/"><h2 cl..." Line: 1213 Column: 2 - 48
"...17</h3> <a href="https://media.defcon.org/DEF CON 25/"><img c..." Line: 1215 Column: 55 - 101
"...ta on the <a href="https://media.defcon.org/DEF CON 25/">DEF CO..."
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.
Line: 1099 Column: 67 - 138
"...e #DEFCON <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 presentations/">presen..."
"...e #DEFCON <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 presentations/">presen..."
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.
Line: 1099 Column: 161 - 228
"...s</a> and <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 workshops/">worksh..."
"...s</a> and <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 workshops/">worksh..."
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.
Line: 1101 Column: 6 - 83
"...r> The <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 x-hour film contest/">films ..."
"...r> The <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 x-hour film contest/">films ..."
Stray end tag “a”.
Line: 1103 Column: 24 - 27
"...ass it on!</a> </p> ..."
"...ass it on!</a> </p> ..."
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.
Line: 1148 Column: 2 - 63
"...lpha"> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 ctf/"><h2 cl..." Line: 1151 Column: 2 - 63
"...17</h3> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 ctf/"><img c..." Line: 1153 Column: 83 - 144
"...time it's <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 ctf/">vast q..."
"...lpha"> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 ctf/"><h2 cl..." Line: 1151 Column: 2 - 63
"...17</h3> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 ctf/"><img c..." Line: 1153 Column: 83 - 144
"...time it's <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 ctf/">vast q..."
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.
Line: 1155 Column: 74 - 148
"... prepared <a href="https://media.defcon.org/DEF CON Torrents/DEF CON 25 ctf.torrent">the wh..."
"... prepared <a href="https://media.defcon.org/DEF CON Torrents/DEF CON 25 ctf.torrent">the wh..."
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.
Line: 1164 Column: 2 - 68
"...lpha"> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 pictures/"><h2 cl..." Line: 1167 Column: 2 - 68
"...17</h3> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 pictures/"><img c..." Line: 1169 Column: 77 - 143
"...nues: the <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 pictures/">pictur..."
"...lpha"> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 pictures/"><h2 cl..." Line: 1167 Column: 2 - 68
"...17</h3> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 pictures/"><img c..." Line: 1169 Column: 77 - 143
"...nues: the <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 pictures/">pictur..."
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.
Line: 1219 Column: 2 - 69
"...r><br> <a href="https://media.defcon.org/DEF CON 25/DEFCON-25-Receipt.pdf">DEF CO..."
"...r><br> <a href="https://media.defcon.org/DEF CON 25/DEFCON-25-Receipt.pdf">DEF CO..."
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.
Line: 1222 Column: 2 - 80
"...als:<br> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 presentations.torrent">https:..."
"...als:<br> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 presentations.torrent">https:..."
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.
Line: 1223 Column: 2 - 76
"...</a><br> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 workshops.torrent">https:..."
"...</a><br> <a href="https://media.defcon.org/DEF CON 25/DEF CON 25 workshops.torrent">https:..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Line: 1348 Column: 33 - 73
"...mn alpha"><img src="images/defcon-main/spacer.png"></div>..." Line: 1349 Column: 71 - 149
"...dex.html"><img class="scale-with-grid" src="images/defcon-25/post-images/dc-25-logo.jpg"></a> ..." Line: 1354 Column: 33 - 73
"...mn omega"><img src="images/defcon-main/spacer.png"></div>..."
"...mn alpha"><img src="images/defcon-main/spacer.png"></div>..." Line: 1349 Column: 71 - 149
"...dex.html"><img class="scale-with-grid" src="images/defcon-25/post-images/dc-25-logo.jpg"></a> ..." Line: 1354 Column: 33 - 73
"...mn omega"><img src="images/defcon-main/spacer.png"></div>..."
Warnings
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Line: 329 Column: 2 - 43
"...--> <section class="seven columns alpha main"> ..." Line: 228 Column: 2 - 36
"...umns"> <section class="ten columns alpha"> ..."
"...--> <section class="seven columns alpha main"> ..." Line: 228 Column: 2 - 36
"...umns"> <section class="ten columns alpha"> ..."
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defcon.org Ping
Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
defcon.org TRACEROUTE
Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.