Sdflex.kr belongs to GTP-AS-KR Gyeonggi Technopark, KR. Check the list of other websites hosted by GTP-AS-KR Gyeonggi Technopark, KR.
In terms of rank-to-traffic ratio, sdflex.kr has 2,295 unique users per day, viewing 4,590 pages. The rank based value of sdflex.kr is 3,370 USD. Every user makes 2.14 pageviews on average.
Sdflex.kr boasts a link base consisting of 303 referring domains and 331 external backlinks, as revealed by the data obtained from web network scanning.
Sdflex.kr top-level domain belongs to .KR domain zone. Check other webpages in .KR zone.
According the last verification test in February 24, 2023, sdflex.kr has an expired SSL certificate issued by Let's Encrypt (expired on April 05, 2023). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Let's Encrypt.
Based on data from Symantec sdflex.kr is a fairly safe domain.





| Domain | photo.iansan.net |
| Issuer Organization | Let's Encrypt |
| Issuer | R3 |
| Algorithm | RSA-SHA256 |
| Valid form | 01/05/2023 |
| Expiration | 04/05/2023 |
| Signed | Certificate is not self signed |
| Additional Domains |
photo.iansan.net |
Alexa Rank shows how popular sdflex.kr is in comparison with other sites. The most popular site has Alexa Rank equals 1. If sdflex.kr 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 sdflex.kr and pageviews on sdflex.kr over the past 3 months.
ASN ID: 17845
ASN Title: GTP-AS-KR Gyeonggi Technopark, KRLast Update: 01/26/2026
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS17408 - AS18409'
as-block: AS17408 - AS18409
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: 2008-09-04T06:40:26Z
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 'AS17653 - AS18431'
as-block: AS17653 - AS18431
descr: APNIC ASN block
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-APNIC-AP
last-modified: 2016-09-30T02:07:37Z
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 'AS17832 - AS17881'
as-block: AS17832 - AS17881
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: 2017-06-15T04:25:42Z
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 'AS17845'
% Abuse contact for 'AS17845' is 'hostmaster@nic.or.kr'
aut-num: AS17845
as-name: GTP-AS-KR
descr: Gyeonggi Technopark
country: KR
admin-c: AM1071-AP
tech-c: AM1071-AP
import: from AS17864
action pref=1;
accept ANY
import: from AS4766
action pref=100;
accept ANY
export: to AS17864
announce AS17845
export: to AS4766
announce AS17845
default: to AS17864
action pref=1;
networks ANY
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
last-modified: 2016-10-12T07:23:01Z
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: Gyeonggi-do Sangnok-gu, Ansan-si Haean-ro 705
country: KR
phone: +82-31-500-3015
e-mail: cyj@gtp.or.kr
nic-hdl: AM1071-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2017-11-23T05:54:30Z
source: APNIC
% Information related to 'AS17845'
aut-num: AS17845
as-name: GTP-AS-KR-KR
descr: Gyeonggi Technopark
country: KR
import: from AS17864 action pref=1 accept ANY
import: from AS9318 action pref=10 accept ANY
import: from AS4766 action pref=100 accept ANY
export: to AS17864 announce AS17845
export: to AS9318 announce AS17845
export: to AS4766 announce AS17845
admin-c: CL395-KR
tech-c: CL395-KR
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
changed: hostmaster@nic.or.kr
source: KRNIC
person: AS Manager
address: Gyeonggi-do Sangnok-gu, Ansan-si Haean-ro 705
address: Gyeonggi Technopark
country: KR
phone: +82-31-500-3015
e-mail: cyj@gtp.or.kr
nic-hdl: CL395-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)
query : sdflex.kr
# KOREAN(UTF8)
도메인이름 : sdflex.kr
등록인 : 주식회사 에스디에프
책임자 : 정시대
책임자 전자우편 : csdnsa21@naver.com
등록일 : 2016. 05. 02.
최근 정보 변경일 : 2020. 03. 26.
사용 종료일 : 2023. 05. 02.
정보공개여부 : N
등록대행자 : (주)아이티이지(http://www.iteasy.co.kr)
DNSSEC : 미서명
1차 네임서버 정보
호스트이름 : ns1.mylinux.co.kr
IP 주소 : 183.111.167.35
2차 네임서버 정보
호스트이름 : ns2.mylinux.co.kr
IP 주소 : 183.111.167.36
네임서버 이름이 .kr이 아닌 경우는 IP주소가 보이지 않습니다.
# ENGLISH
Domain Name : sdflex.kr
Registrant : SDF CO., Ltd
Administrative Contact(AC) : SIDAE Jung
AC E-Mail : csdnsa21@naver.com
Registered Date : 2016. 05. 02.
Last Updated Date : 2020. 03. 26.
Expiration Date : 2023. 05. 02.
Publishes : N
Authorized Agency : ITEASY inc(http://www.iteasy.co.kr)
DNSSEC : unsigned
Primary Name Server
Host Name : ns1.mylinux.co.kr
IP Address : 183.111.167.35
Secondary Name Server
Host Name : ns2.mylinux.co.kr
IP Address : 183.111.167.36
- KISA/KRNIC WHOIS Service -
| Host | A Record | TTL |
|---|---|---|
| sdflex.kr | 183.111.169.124 | 283 |
| Host | MX Record | Priority | TTL |
|---|
| Host | NS Record | TTL |
|---|---|---|
| sdflex.kr | ns1.mylinux.co.kr | |
| sdflex.kr | ns2.mylinux.co.kr |
| Host | TXT Record | TTL |
|---|
ns1.mylinux.co.kr
TTL: 21600
Email address: root.sdflex.kr
Serial: 2018030904
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 3600
not found