atop21.co.kr

Quick Summary

Online Status

UNKNOWN

Atop21.co.kr receives about 7,869 unique visitors and 31,476 pageviews per day. The estimated value of atop21.co.kr is 47,520 USD. Each unique visitor makes about 4 pageviews on average.

Atop21.co.kr is registered under .KR top-level domain. Check other websites in .KR zone.

At the time of the last check (March 10, 2020) atop21.co.kr has an expired SSL certificate issued by Let's Encrypt (expired on April 16, 2020). Check other websites using SSL certificates issued by Let's Encrypt.

According to Google Safe Browsing and Symantec atop21.co.kr is quite a safe domain.

Mobile-Friendly test indicates that atop21.co.kr isn't optimized for mobile and tablet devices. Designing your websites to be mobile friendly ensures that your pages perform well on all devices, also website page loading time could be improved.

Atop21.co.kr General Information

Not tested yet

Atop21.co.kr Alexa Rank History

Alexa Rank shows how popular atop21.co.kr is in comparison with other sites. The most popular site has Alexa Rank equals 1. If atop21.co.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 atop21.co.kr and pageviews on atop21.co.kr over the past 3 months.

Atop21.co.kr Safety Information

Overview

Last Updated: 11/05/2024

Unknown status.
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

Last Updated: 12/15/2023

atop21.co.kr is safe.

Norton ConnectSafe evaluates atop21.co.kr for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 11/05/2024

Not yet checked.

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 Browsing

Last Updated: 08/30/2019

Malware not found at "atop21.co.kr".
"atop21.co.kr" is not a phishing page.
"atop21.co.kr" does not install unwanted software.
"atop21.co.kr" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 11/11/2020

atop21.co.kr is safe.

McAfee assesses atop21.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 atop21.co.kr for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 11/05/2024

atop21.co.kr child safety isunknown.

The WOT calculates reputation of the atop21.co.kr. This reputation system receives ratings from users and information from third-party sources, assesses the atop21.co.kr for safety features and confirms, whether atop21.co.kr is suitable for children.

SSL Information

SSL Checker Tool

Domain	atop21.co.kr
Issuer Organization	Let's Encrypt
Issuer	Let's Encrypt Authority X3
Algorithm	RSA-SHA256
Valid form	01/17/2020
Expiration	04/16/2020
Signed	Certificate is not self signed
Additional Domains	atop21.co.kr en.atop21.co.kr m.atop21.co.kr m.en.atop21.co.kr www.atop21.co.kr

Atop21.co.kr Server Information

Server Location

Geolocation Tool

Not Found

ASN Information

ASN Lookup Tool

ASN ID: 17878
ASN Title: MARK1-AS-KR DREAMMARK1, KR

Last Update: 04/10/2024

ASN Whois

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

% Information related to 'AS17653 - AS18431'

as-block: AS17653 - AS18431
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: 2019-01-08T23:19:07Z
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: Jeollanam-do Naju-si Jinheung-gil
country: KR
phone: +82-2-405-5118
e-mail: hostmaster@nic.or.kr
nic-hdl: HM127-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2019-05-22T01:20:31Z
source: APNIC

% Information related to 'AS17878'

% Abuse contact for 'AS17878' is 'irt@nic.or.kr'

aut-num: AS17878
as-name: MARK1-AS-KR
descr: DREAMMARK1
country: KR
admin-c: AM2195-AP
tech-c: AM2195-AP
import: from AS38676
action pref=300;
accept ANY
import: from AS9457
action pref=300;
accept ANY
export: to AS38676
announce AS17878
export: to AS9457
announce AS17878
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
last-modified: 2018-10-16T01:13:03Z
source: APNIC

irt: IRT-KRNIC-KR
address: Jeollanam-do Naju-si Jinheung-gil
e-mail: irt@nic.or.kr
abuse-mailbox: irt@nic.or.kr
admin-c: IM574-AP
tech-c: IM574-AP
auth: # Filtered
remarks: irt@nic.or.kr was validated on 2019-10-01
mnt-by: MNT-KRNIC-AP
last-modified: 2019-10-01T08:41:39Z
source: APNIC

person: AS Manager
address: Seoul Guro-gu Digital-ro 31-gil 61
country: KR
phone: +82-2-6007-6051
e-mail: ip@dreamline.co.kr
nic-hdl: AM2195-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2018-10-16T00:54:02Z
source: APNIC

% Information related to 'AS17878'

aut-num: AS17878
as-name: MARK1-AS-KR-KR
descr: DREAMMARK1
country: KR
import: from 38676 action pref=300 accept ANY
import: from 9457 action pref=300 accept ANY
export: to 38676 announce NEW
export: to 9457 announce NEW
admin-c: AM5978-KR
tech-c: AM5978-KR
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
changed: hostmaster@nic.or.kr
source: KRNIC

person: AS Manager
address: Seoul Guro-gu Digital-ro 31-gil 61
address: 701,7F
country: KR
phone: +82-2-6007-6051
e-mail: ip@dreamline.co.kr
nic-hdl: AM5978-KR
mnt-by: MNT-KRNIC-AP
changed: hostmaster@nic.or.kr
source: KRNIC

% This query was served by the APNIC Whois Service version 1.88.15-47 (WHOIS-US4)

Atop21.co.kr Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

query : atop21.co.kr

# KOREAN(UTF8)

도메인이름 : atop21.co.kr
등록인 : (주)에이탑
등록인 주소 : 경기 안양시 동안구 경수대로 493-10 (호계동)
등록인 우편번호 : 14120
책임자 : 홍용철
책임자 전자우편 : hwang@atop21.co.kr
책임자 전화번호 : 82314535191
등록일 : 2002. 04. 23.
최근 정보 변경일 : 2022. 10. 07.
사용 종료일 : 2027. 04. 23.
정보공개여부 : Y
등록대행자 : (주)후이즈(http://whois.co.kr)
DNSSEC : 미서명

1차 네임서버 정보
호스트이름 : ns1.mireene.com

2차 네임서버 정보
호스트이름 : ns2.mireene.com

네임서버 이름이 .kr이 아닌 경우는 IP주소가 보이지 않습니다.

# ENGLISH

Domain Name : atop21.co.kr
Registrant : A-Top Co., Ltd.
Registrant Address : 493-10 Gyeongsu-daero Dongan-gu, Anyang-si Gyeonggi-do
Registrant Zip Code : 14120
Administrative Contact(AC) : Yong-Cheol Hong
AC E-Mail : hwang@atop21.co.kr
AC Phone Number : 82314535191
Registered Date : 2002. 04. 23.
Last Updated Date : 2022. 10. 07.
Expiration Date : 2027. 04. 23.
Publishes : Y
Authorized Agency : Whois Corp.(http://whois.co.kr)
DNSSEC : unsigned

Primary Name Server
Host Name : ns1.mireene.com

Secondary Name Server
Host Name : ns2.mireene.com

- KISA/KRNIC WHOIS Service -

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Atop21.co.kr HTML Validation

HTML Validation Tool

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Bad value “//www.w3.org/1999/xhtml” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).

Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.

Bad value “Expires” for attribute “http-equiv” on element “meta”.

Bad value “Pragma” for attribute “http-equiv” on element “meta”.

The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.

Bad value “” for attribute “name” on element “form”: Must not be empty.

Attribute “fw-filter” not allowed on element “input” at this point.

Attribute “fw-label” not allowed on element “input” at this point.

Attribute “fw-msg” not allowed on element “input” at this point.

Attribute “alt” not allowed on element “a” at this point.

Bad value “6-4” for attribute “rel” on element “img”: The string “6-4” is not an absolute URL.

Bad value “7-4” for attribute “rel” on element “img”: The string “7-4” is not an absolute URL.

Bad value “9-4” for attribute “rel” on element “img”: The string “9-4” is not an absolute URL.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Bad value “5-3” for attribute “rel” on element “img”: The string “5-3” is not an absolute URL.

Warnings

Attribute “xmlns” is not serializable as XML 1.0.

The “type” attribute is unnecessary for JavaScript resources.

The “charset” attribute on the “script” element is obsolete.

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Atop21.co.kr ATOP

Quick Summary

Atop21.co.kr General Information

Atop21.co.kr Alexa Rank History

Atop21.co.kr Safety Information

Atop21.co.kr Server Information

Atop21.co.kr Domain Name Information

Atop21.co.kr HTML Validation

Atop21.co.kr Nearest Competitors

Atop21.co.kr Typos