ctfd.io - CTFd : The Easiest Capture The Flag Platform

Ctfd.io Quick Summary

Status

Online

Server IP address resolved: Yes

Http response code: 200

Response time: 0.18 sec.

Last Checked: 05/01/2024

Ctfd.io traffic estimate is about 173 unique visitors and 761 pageviews per day. The approximated value of ctfd.io is 5,840 USD. Every unique visitor makes about 4.4 pageviews on average.

Alexa Traffic Rank estimates that ctfd.io is ranked number 17,128 in the world, while most of its traffic comes from Indonesia, where it occupies as high as 195,349 place.

Ctfd.io is registered under .IO top-level domain. Check other websites in .IO zone.

During the last check (June 04, 2021) ctfd.io has an expired SSL certificate issued by CloudFlare, Inc. (expired on July 06, 2021), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by CloudFlare, Inc..

In accordance with Google Safe Browsing, Google Safe Search and Symantec ctfd.io is pretty a safe domain.

Relying on Google Mobile-Friendly test ctfd.io is well optimized for mobile and tablet devices, however website page loading time may be improved.

Ctfd.io General Information

Ctfd.io Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors
Indonesia ID	5.4%
Other	94.6%

Country	Rank
Indonesia ID	195349

Ctfd.io Traffic Distribution

Where do visitors go on ctfd.io?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews
ctfd.io	24.67%
other	75.07%

Subdomain	Views per User
ctfd.io	2

Subdomain	Reach
ctfd.io	60.87%

Ctfd.io Popularity

How popular is ctfd.io?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	847543	2472
past month	1354869	723172
past week	2497424	206282

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	666045	-328080	5	77%	4.4	100%
30	1067740	611181	3	-68.557%	4	-22.01%
7	2089271	392391	1	-28.49%	3	-26.99%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	995723	167712	39	-18.18%
30	1621339	842036	2	-59.471%
7	2913582	104864	1	-2.08%

Press rescan to collect fresh statistics for this website...

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Ctfd.io Safety Information

Rankchart Summary

Safe

Updated: 05/01/2024

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

Safe

Updated: 03/31/2024

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Safe

Updated: 11/06/2017

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 01/09/2019

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 03/12/2021

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McAfee assesses ctfd.io 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 ctfd.io for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Not Checked

Updated: 05/01/2024

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

Ctfd.io SSL Information

Information about SSL/TLS certificates

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Domain	sni.cloudflaressl.com
Issuer Organization	CloudFlare, Inc.
Issuer	Cloudflare Inc ECC CA-3
Algorithm	ecdsa-with-SHA256
Valid form	07/06/2020
Expiration	07/06/2021
Signed	Certificate is not self signed
Additional Domains	sni.cloudflaressl.com *.ctfd.io ctfd.io

SSL Checker

Ctfd.io Server Information

Ctfd.io Server Location

Where website hosting server is located?

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Ctfd.io ASN Information

Information about IP address owner

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ASN ID: 13335

ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Updated: 03/22/2024

Raw ASN data:

#
# 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.
#

Geolocation

ASN Lookup

Ctfd.io Domain Name Information

Ctfd.io DNS Information

Domain name service records

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Host	A Record	TTL

Ctfd.io Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Domain Name: ctfd.io
Registry Domain ID: 781d915c9d8d4e318e29fbd48c114d07-DONUTS
Registrar WHOIS Server: http://whois.cloudflare.com
Registrar URL: http://cloudflare.com
Updated Date: 2023-10-24T19:48:25Z
Creation Date: 2014-11-18T22:56:57Z
Registry Expiry Date: 2024-11-18T22:56:57Z
Registrar: Cloudflare, Inc
Registrar IANA ID: 1910
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: CTFd LLC
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: Brooklyn
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: terry.ns.cloudflare.com
Name Server: tia.ns.cloudflare.com
DNSSEC: signedDelegation
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2023-12-13T02:23:33Z

Whois

DNS Lookup

Ctfd.io HTML Validation

Ctfd.io W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

Bad value “https://fonts.googleapis.com/css?family=Lora:400,400italic|Work+Sans:300,400,500,600” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

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

End tag “a” violates nesting rules.

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 “span”.

Stray end tag “a”.

Warnings:

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

HTML Validator

Ctfd.io Desktop Performance

How Well Ctfd.io Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

56%

Optimize images

Enable compression

Leverage browser caching

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

Minify CSS

Minify JavaScript

Updated: 12/01/2017

Ctfd.io Mobile Performance

How Optimized Is Ctfd.io for Mobile Devices?

Tips on speeding up mobile site performance

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Usability
Speed
Resource Breakdown

Usability

89%

Size tap targets appropriately

Updated: 11/30/2017

Ctfd.io Nearest Competitors

Estimated Nearest Competitors Of Ctfd.io

w*******1.com
n*******n.ru
bastianallgeier.com
pointswork.info
unicesar.edu.co
toplivis.ru
stromectolrf.top
auto-verkopen-vlaanderen.be
7ba.su
jmrykj.com
ctfd.io
krunkerio.io
koyu.space
pentagol.top
sidar.org
t*********s.com
cardvilla.cc
dino-game.co
ihatethemedia.com
shilla.net
v******t.net
jsminjuryfirm.com

Ctfd.io URL Typos

Most common user URL mistypes for ctfd.io

www.ctfd.com
www.ctfd.net
www.ctfd.org
www.ctfd.info
www.ctfd.biz
www.ctfd.us
www.ctfd.mobi
www.tfd.io
www.ctfd.io
www.xtfd.io
www.cxtfd.io
www.xctfd.io
www.dtfd.io
www.cdtfd.io
www.dctfd.io
www.ftfd.io
www.cftfd.io
www.fctfd.io
www.vtfd.io
www.cvtfd.io
www.vctfd.io
www.cfd.io
www.crfd.io
www.ctrfd.io
www.crtfd.io
www.cffd.io
www.ctffd.io
www.cgfd.io
www.ctgfd.io
www.cgtfd.io
www.cyfd.io
www.ctyfd.io
www.cytfd.io
www.ctd.io
www.ctcd.io
www.ctfcd.io
www.ctcfd.io
www.ctdd.io
www.ctfdd.io
www.ctdfd.io
www.ctrd.io
www.ctfrd.io
www.cttd.io
www.ctftd.io
www.cttfd.io
www.ctgd.io
www.ctfgd.io
www.ctvd.io
www.ctfvd.io
www.ctvfd.io
www.ctf.io
www.ctfx.io
www.ctfdx.io
www.ctfxd.io
www.ctfs.io
www.ctfds.io
www.ctfsd.io
www.ctfe.io
www.ctfde.io
www.ctfed.io
www.ctfr.io
www.ctfdr.io
www.ctff.io
www.ctfdf.io
www.ctfc.io
www.ctfdc.io

Total Resources	47
Number of Hosts	14
Static Resources	36
JavaScript Resources	11
CSS Resources	6

CSS	208.1 KBytes
Images	663.5 KBytes
HTML	19.2 KBytes
JavaScript	659.7 KBytes
Other	113.6 KBytes

Total Resources	46
Number of Hosts	14
Static Resources	35
JavaScript Resources	11
CSS Resources	6

CSS	208.3 KBytes
Images	584.7 KBytes
HTML	19.2 KBytes
JavaScript	659.7 KBytes
Other	81.2 KBytes

Ctfd.io CTFd : The Easiest Capture The Flag Platform

The best Capture The Flag framework out there for hiring hackers, training developers, and teaching students.

Ctfd.io Quick Summary

Ctfd.io General Information

Ctfd.io Audience Geography

Ctfd.io Traffic Distribution

Ctfd.io Popularity

Ctfd.io Safety Information

Ctfd.io SSL Information

Ctfd.io Server Information

Ctfd.io Server Location

Ctfd.io ASN Information

Ctfd.io Domain Name Information

Ctfd.io DNS Information

Ctfd.io Whois Information

Ctfd.io HTML Validation

Ctfd.io W3C HTML Markup Validation

Ctfd.io Desktop Performance

How Well Ctfd.io Performs On Desktops?

Ctfd.io Mobile Performance

How Optimized Is Ctfd.io for Mobile Devices?

Ctfd.io Nearest Competitors

Estimated Nearest Competitors Of Ctfd.io

Ctfd.io URL Typos

Most common user URL mistypes for ctfd.io