Opencourse / OpenCourse

Robots.txt Information

Robot	Path	Permission
GoogleBot	/	✔
BingBot	/	✔
BaiduSpider	/	✔
YandexBot	/	✔

Meta Tags

Title	OpenCourse
Description	프로그래밍, 스위치, 스팀덱 및 하드웨어 정보
Keywords	N/A

Server Information

WebSite	www.opencourse.kr
Host IP	172.67.217.101
Location	United States

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Opencourse.kr Valuation

US$396,315

Last updated: Feb 14, 2023

Opencourse.kr has global traffic rank of 218,989. Opencourse.kr has an estimated worth of US$ 396,315, based on its estimated Ads revenue. Opencourse.kr receives approximately 14,477 unique visitors each day. Its web server is located in United States, with IP address 172.67.217.101. According to SiteAdvisor, opencourse.kr is unknown to visit.

Traffic & Worth Estimates

Purchase/Sale Value	US$396,315
Daily Ads Revenue	US$217
Monthly Ads Revenue	US$6,514
Yearly Ads Revenue	US$79,263
Daily Unique Visitors	14,477
Note: All traffic and earnings values are estimates.

Traffic Ranks

Global Rank	218,989
Delta (90 Days)	0
Most Popular In Country	N/A
Country Rank	N/A

DNS Records

Host	Type	TTL	Data
opencourse.kr	A	300	IP: 104.21.94.3
opencourse.kr	A	300	IP: 172.67.217.101
opencourse.kr	AAAA	300	IPv6: 2606:4700:3037:0:0:0:ac43:d965
opencourse.kr	AAAA	300	IPv6: 2606:4700:3033:0:0:0:6815:5e03
opencourse.kr	MX	300	Priority: 38 Target: route2.mx.cloudflare.net.
opencourse.kr	MX	300	Priority: 83 Target: route1.mx.cloudflare.net.
opencourse.kr	MX	300	Priority: 100 Target: route3.mx.cloudflare.net.
opencourse.kr	NS	21600	Target: emma.ns.cloudflare.com.
opencourse.kr	NS	21600	Target: alaric.ns.cloudflare.com.
opencourse.kr	TXT	300	TXT: google-site-verification=_SXpnyfyR05TUcT3x9ARLRgqraTXsl_rFfytthGopaU
opencourse.kr	TXT	300	TXT: v=spf1 include:_spf.mx.cloudflare.net include:mailgun.org ~all
opencourse.kr	SOA	3600	MNAME: alaric.ns.cloudflare.com. RNAME: dns.cloudflare.com. Serial: 2300571464 Refresh: 10000 Retry: 2400 Expire: 604800 Minimum TTL: 3600

HTTP Headers

HTTP/1.1 301 Moved Permanently
Date: Tue, 14 Feb 2023 07:51:11 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Location: https://opencourse.kr/
CF-Cache-Status: DYNAMIC
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=wBDjPFfDelAZ2XRit0mH3%2F5%2Bt2wqkdNVxS%2FfLSCk7tlIVmUgFWnY%2BslS3FvMZlZRRbrB9BuJfDXvWjt%2BSvS%2Fi2VSmkuQmtgR%2FjXoGwiZSnUtvktqKbogtMe6oM0jBYeJaodZP8zQbZBiFOpj"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Server: cloudflare
CF-RAY: 79943793dbfde704-EWR
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

HTTP/2 200 
date: Tue, 14 Feb 2023 07:51:12 GMT
content-type: text/html; charset=utf-8
x-powered-by: Express
cache-control: public, max-age=0
vary: Accept-Encoding
cf-cache-status: DYNAMIC
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=Uo1jpdYx15088p9p0syPnNnK0Fg2iu%2BGBRIPsvPfPidDVNqCLQk1SByH8sy0beKIrYwcWSnHVC0ne8%2BIbIGUNM3tLCcVYXYjF%2Fom2tgMYuBs7LswKk6Hq7ocruL9apO7GZovaDVW2t8iNxb9"}],"group":"cf-nel","max_age":604800}
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
cf-ray: 79943796bb2ce6ec-EWR
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

Opencourse.kr Whois Information

query : opencourse.kr

도메인이름                  : opencourse.kr
등록인                      : 정승현
책임자                      : 정승현
책임자 전자우편             : jshsakura@gmail.com
등록일                      : 2023. 01. 18.
최근 정보 변경일            : 2023. 01. 20.
사용 종료일                 : 2025. 01. 18.
정보공개여부                : N
등록대행자                  : (주)가비아(http://www.gabia.co.kr)
DNSSEC                      : 미서명

1차 네임서버 정보
   호스트이름               : alaric.ns.cloudflare.com

2차 네임서버 정보
   호스트이름               : emma.ns.cloudflare.com

네임서버 이름이 .kr이 아닌 경우는 IP주소가 보이지 않습니다.

Domain Name                 : opencourse.kr
Registrant                  : SeungHyeonJeong
Administrative Contact(AC)  : SeungHyeonJeong
AC E-Mail                   : jshsakura@gmail.com
Registered Date             : 2023. 01. 18.
Last Updated Date           : 2023. 01. 20.
Expiration Date             : 2025. 01. 18.
Publishes                   : N
Authorized Agency           : Gabia, Inc.(http://www.gabia.co.kr)
DNSSEC                      : unsigned

Primary Name Server
   Host Name                : alaric.ns.cloudflare.com

Secondary Name Server
   Host Name                : emma.ns.cloudflare.com

- KISA/KRNIC WHOIS Service -

Opencourse.kr valuation and analysis