Duo.co.kr ?扇


Duo.co.kr Overview

Duo.co.kr ranking shows that the page is at position 197,461 over the world, while the bulk of its audience is from Korea, where it ranks 3,860.

It is beneficial to duo.co.kr that their hosting company SEJONGTELECOM-AS-KR Sejong Telecom, KR servers are located in Korea, as that reduces page load time for the majority of their users. See the list of other webpages hosted on SEJONGTELECOM-AS-KR Sejong Telecom, KR servers.

In terms of rank-to-traffic ratio, duo.co.kr has 1,167 unique users per day, viewing 3,616 pages. The rank based value of duo.co.kr is 63,135 USD. Every user makes 3.35 pageviews on average.

Duo.co.kr boasts a link base consisting of 246 referring domains and 274 external backlinks, as revealed by the data obtained from web network scanning.

Duo.co.kr top-level domain belongs to .KR domain zone. Check other webpages in .KR zone.

According the last verification test in June 23, 2019, duo.co.kr has an invalid SSL certificate. Click button “Update” SSL Information at the Safety Information section.

Based on data from Google Safe Browsing, Google Safe Search and Symantec duo.co.kr is a fairly safe domain.

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


Duo.co.kr Rank Summary

Global Rank
197,461
Average Load Time
0.59sec
Links In Count
34
Website Value
$58,458

Duo.co.kr Website Safety

logo
Overview
Last Updated: 05/20/2025
Overall result - duo.co.kr 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 logo
Norton Connect Safe
Last Updated: 03/25/2025
duo.co.kr is safe.
Norton ConnectSafe evaluates duo.co.kr for any unsafe and insecure content. The results are critical for families with young children.
Google logo
Google Safe Search
Last Updated: 11/11/2016
duo.co.kr 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 brwosing logo
Google Safe Browsing
Last Updated: 01/09/2019
duo.co.kr 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.
McAfee logo
Site Advisor
Last Updated: 02/25/2021
duo.co.kr is safe.
McAfee assesses duo.co.kr 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 duo.co.kr for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 05/20/2025
duo.co.kr child safety is unknown.
The WOT calculates reputation of the duo.co.kr. This reputation system receives ratings from users and information from third-party sources, assesses the duo.co.kr for safety features and confirms, whether duo.co.kr is suitable for children.

SSL Information
WARNING!Certificate download error. Previous scan results are shown below.
Domainwww.duo.co.kr
Issuer OrganizationUnknown
IssuerDigiCert SHA2 Secure Server CA
AlgorithmRSA-SHA256
Valid form01/18/2019
Expiration02/19/2020
SignedCertificate is not self signed
Additional Domains www.duo.co.kr
duo.co.kr

Duo.co.kr Rank History

Duo.co.kr Hosting Information

Server Location

ASN Information

Last Update: 11/09/2024

% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS9216 - AS10239'

as-block: AS9216 - AS10239
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2009-05-19T07:00:23Z
source: APNIC

role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC

% Information related to 'AS9840 - AS9871'

as-block: AS9840 - AS9871
descr: KRNIC-ASBLOCK-AP
descr: KRNIC
descr: Korea Network Information Center
country: KR
admin-c: HM127-AP
tech-c: HM127-AP
remarks: Authoritative information regarding AS Number
remarks: assignments made from within this block can also be
remarks: queried at whois.nic.or.kr
mnt-by: APNIC-HM
mnt-lower: MNT-KRNIC-AP
last-modified: 2017-06-15T04:25:41Z
source: APNIC

person: Host Master
address: 135 Jungdae-ro Songpa-gu Seoul
country: KR
phone: +82-2-405-5118
e-mail: hostmaster@nic.or.kr
nic-hdl: HM127-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2016-03-15T04:20:59Z
source: APNIC

% Information related to 'AS9848'

% Abuse contact for 'AS9848' is 'hostmaster@nic.or.kr'

aut-num: AS9848
as-name: SejongTelecom-AS-KR
descr: Sejong Telecom
country: KR
admin-c: AM1737-AP
tech-c: AM1737-AP
import: from AS3786
action pref=0;
accept ANY
import: from AS9457
action pref=0;
accept ANY
export: to AS3786
announce AS9848
export: to AS9457
announce AS9848
default: to AS9457
action pref=0;
networks ANY
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
last-modified: 2018-01-25T05:12:52Z
source: APNIC

irt: IRT-KRNIC-KR
address: Seocho-ro 398, Seocho-gu, Seoul, Korea
e-mail: hostmaster@nic.or.kr
abuse-mailbox: hostmaster@nic.or.kr
admin-c: IM574-AP
tech-c: IM574-AP
auth: # Filtered
mnt-by: MNT-KRNIC-AP
last-modified: 2017-10-19T07:36:36Z
source: APNIC

person: AS Manager
address: Seoul Gangdong-gu Sangil-ro 10-gil 36
country: KR
phone: +82-70-7997-6133
e-mail: papilion@sejongtelecom.net
nic-hdl: AM1737-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2017-08-07T00:55:25Z
source: APNIC

% Information related to 'AS9848'

aut-num: AS9848
as-name: SejongTelecom-AS-KR-KR
descr: Sejong Telecom
country: KR
import: from 3786 action pref=0 accept ANY
import: from 9457 action pref=0 accept ANY
export: to 3786 announce NEW
export: to 9457 announce NEW
admin-c: NM5030-KR
tech-c: NM5030-KR
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
changed: hostmaster@nic.or.kr
source: KRNIC

person: AS Manager
address: Seoul Gangdong-gu Sangil-ro 10-gil 36
address: (SangIldong)
country: KR
phone: +82-70-7997-6133
e-mail: papilion@sejongtelecom.net
nic-hdl: NM5030-KR
mnt-by: MNT-KRNIC-AP
changed: hostmaster@nic.or.kr
source: KRNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US3)

Duo.co.kr Domain Registration and Settings

WHOIS

query : duo.co.kr

# KOREAN(UTF8)

도메인이름 : duo.co.kr
등록인 : 듀오정보(주)
등록인 주소 : 서울 강남구 역삼동 820-9 글라스타워 11층
등록인 우편번호 : 135080
책임자 : 듀오정보(주)
책임자 전자우편 : duo@duonet.com
책임자 전화번호 : +82.25506082
등록일 : 1998. 06. 12.
최근 정보 변경일 : 2006. 11. 22.
사용 종료일 : 2026. 10. 15.
정보공개여부 : Y
등록대행자 : (주)아이네임즈(http://www.inames.co.kr)
DNSSEC : 미서명

1차 네임서버 정보
호스트이름 : ns.gihc.net

2차 네임서버 정보
호스트이름 : ns2.gihc.net

네임서버 이름이 .kr이 아닌 경우는 IP주소가 보이지 않습니다.

# ENGLISH

Domain Name : duo.co.kr
Registrant : Duo information
Registrant Address : Duo Information glass tower B/D 11F, 820-9, Yeoksam-dong, Gangnam-gu, Seoul, KR
Registrant Zip Code : 135080
Administrative Contact(AC) : duo infomation
AC E-Mail : duo@duonet.com
AC Phone Number : +82.25506082
Registered Date : 1998. 06. 12.
Last Updated Date : 2006. 11. 22.
Expiration Date : 2026. 10. 15.
Publishes : Y
Authorized Agency : Inames Co., Ltd.(http://www.inames.co.kr)
DNSSEC : unsigned

Primary Name Server
Host Name : ns.gihc.net

Secondary Name Server
Host Name : ns2.gihc.net

- KISA/KRNIC WHOIS Service -


DNS Records
HostA RecordTTL
duo.co.kr203.235.121.20010
HostMX RecordPriorityTTL
duo.co.krduomail.duonet.com1010
duo.co.krspam.duonet.com510
HostNS RecordTTL
duo.co.krns.gihc.net10
duo.co.krns2.gihc.net10
HostTXT RecordTTL
duo.co.krgoogle-site-verification=R2LSk4T7ptVL01cNjaw_-CZbUoxPeAgCVkaHXje9wzQ10

ns.gihc.net
TTL: 10
Email address: dnsmaster.gihc.net
Serial: 2023062000
Refresh: 21600
Retry: 3600
Expire: 864000
Minimum: 10

Duo.co.kr HTML Check


Errors
Warnings

Duo.co.kr Desktop Performance

Last tested: 11/03/2019

Speedometer image
Desktop Speed
31%

Desktop Resource Breakdown
Total Resources181
Number of Hosts18
Static Resources128
JavaScript Resources14
CSS Resources9

Duo.co.kr Mobile Insights

Last tested: 05/28/2017

Speedometer image
Mobile Usability
99%
Speedometer image
Mobile Speed
43%

Mobile Resource Breakdown
Total Resources88
Number of Hosts16
Static Resources76
JavaScript Resources14
CSS Resources7

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