ybmteachers.com - YBM원격교육연수원(교육부 인가 제07-1호)

Quick Summary

Online Status

UNKNOWN

Ybmteachers.com receives about 1,425 unique visitors and 2,850 pageviews per day. The estimated value of ybmteachers.com is 2,160 USD. Each unique visitor makes about 2 pageviews on average.

Ybmteachers.com is registered under .COM top-level domain. Check other websites in .COM zone.

At the time of the last check (April 28, 2024) ybmteachers.com has an invalid SSL certificate.

According to Google Safe Browsing, Google Safe Search and Symantec ybmteachers.com is quite a safe domain.

Mobile-Friendly test indicates that ybmteachers.com is well optimized for mobile and tablet devices, however website page loading time could be improved.

Ybmteachers.com General Information

Not tested yet

Ybmteachers.com Alexa Rank History

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

Ybmteachers.com Safety Information

Overview

Last Updated: 04/28/2024

Overall result - "ybmteachers.com" 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

Last Updated: 02/06/2024

ybmteachers.com is safe.

Norton ConnectSafe evaluates ybmteachers.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 12/29/2019

ybmteachers.com 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 Browsing

Last Updated: 01/09/2019

Malware not found at "ybmteachers.com".
"ybmteachers.com" is not a phishing page.
"ybmteachers.com" does not install unwanted software.
"ybmteachers.com" 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: 03/06/2021

ybmteachers.com is safe.

McAfee assesses ybmteachers.com 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 ybmteachers.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 04/28/2024

ybmteachers.com child safety isunknown.

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

SSL Information

SSL Checker Tool

WARNING!

Ybmteachers.com is not secured by SSL certificate.

Ybmteachers.com Server Information

Server Location

Geolocation Tool

Seoul-teukbyeolsi

Republic of

Korea

ASN Information

ASN Lookup Tool

ASN ID: 17881
ASN Title: INETHOSTING-AS-KR Inet Hosting, Inc., KR

Last Update: 03/08/2024

ASN Whois

% [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 'AS17881'

% Abuse contact for 'AS17881' is 'hostmaster@nic.or.kr'

aut-num: AS17881
as-name: INETHOSTING-AS-KR
descr: Inet Hosting, Inc.
country: KR
admin-c: AM1654-AP
tech-c: AM1654-AP
import: from AS3976
action pref=10;
accept ANY
import: from AS9957
action pref=10;
accept ANY
export: to AS3976
announce AS17881
export: to AS9957
announce AS17881
default: to AS9957
action pref=100;
networks ANY
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
last-modified: 2016-10-27T02:36:41Z
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 Seocho-gu Nambusunhwan-ro 337ga-gil 40
country: KR
phone: +82-2-2103-7500
e-mail: net@inet.co.kr
nic-hdl: AM1654-AP
mnt-by: MNT-KRNIC-AP
last-modified: 2017-10-10T00:49:29Z
source: APNIC

% Information related to 'AS17881'

aut-num: AS17881
as-name: INETHOSTING-AS-KR-KR
descr: Inet Hosting, Inc.
country: KR
import: from AS3976 action pref=10 accept ANY
import: from AS9957 action pref=10 accept ANY
export: to AS3976 announce AS17881
export: to AS9957 announce AS17881
admin-c: JC431-KR
tech-c: JC431-KR
mnt-by: MNT-KRNIC-AP
mnt-irt: IRT-KRNIC-KR
changed: hostmaster@nic.or.kr
source: KRNIC

person: AS Manager
address: Seoul Seocho-gu Nambusunhwan-ro 337ga-gil 40
address:
country: KR
phone: +82-2-2103-7500
e-mail: net@inet.co.kr
nic-hdl: JC431-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)

Ybmteachers.com Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: YBMTEACHERS.COM
Registry Domain ID: 874751697_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.gabia.com
Registrar URL: http://www.gabia.com
Updated Date: 2022-02-14T08:20:30Z
Creation Date: 2007-03-15T00:29:43Z
Registry Expiry Date: 2023-03-15T00:29:43Z
Registrar: Gabia, Inc.
Registrar IANA ID: 244
Registrar Abuse Contact Email: abuse@gabia.com
Registrar Abuse Contact Phone: +82.2.829.3543
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS.YBMSISA.COM
Name Server: NS2.YBMSISA.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-08-29T21:02:10Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
ybmteachers.com	203.231.233.184	3600

Host	MX Record	Priority	TTL

Host	NS Record	TTL
ybmteachers.com	ns.ybmsisa.com	3600

Host	TXT Record	TTL

sisadns131
TTL: 3600
Email address: admin
Serial: 35
Refresh: 900
Retry: 600
Expire: 86400
Minimum: 3600

Ybmteachers.com HTML Validation

HTML Validation Tool

Errors

Malformed byte sequence: “bf”.

Malformed byte sequence: “f8”.

Malformed byte sequence: “b0”.

Malformed byte sequence: “b3”.

Malformed byte sequence: “c0”.

Malformed byte sequence: “ac”.

Malformed byte sequence: “bc”.

Malformed byte sequence: “f6”.

Malformed byte sequence: “b1”.

Malformed byte sequence: “fa”.

Malformed byte sequence: “c7”.

Malformed byte sequence: “e2”, “bc”.

Malformed byte sequence: “ba”.

Malformed byte sequence: “ce”.

Malformed byte sequence: “a1”.

Malformed byte sequence: “c1”.

Malformed byte sequence: “a6”.

Malformed byte sequence: “c8”.

Malformed byte sequence: “c4”.

Internal encoding declaration “euc-kr” disagrees with the actual encoding of the document (“utf-8”).

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Bad value “/v15/css/layout.css?2018-08-31 �� 2:45:14” for attribute “href” on element “link”: Illegal character in query: space is not allowed.

Malformed byte sequence: “bb”.

Malformed byte sequence: “e7”.

Malformed byte sequence: “d7”.

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

Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)

Malformed byte sequence: “aa”.

Malformed byte sequence: “ad”.

Malformed byte sequence: “e2”.

Malformed byte sequence: “a5”.

Malformed byte sequence: “f1”, “b0”.

Malformed byte sequence: “dc”.

Malformed byte sequence: “c3”.

Malformed byte sequence: “be”.

Malformed byte sequence: “c6”.

Malformed byte sequence: “f0”, “ba”.

Malformed byte sequence: “f1”, “b9”.

Malformed byte sequence: “d4”.

Malformed byte sequence: “b7”.

The “name” attribute on the “img” element is obsolete. Use the “id” attribute instead.

The element “input” must not appear as a descendant of the “a” element.

Malformed byte sequence: “bd”.

Malformed byte sequence: “c5”.

Malformed byte sequence: “b8”.

Malformed byte sequence: “b6”.

Malformed byte sequence: “b4”.

Malformed byte sequence: “ed”, “b0”, “b4”.

Malformed byte sequence: “b5”.

Malformed byte sequence: “f5”.

Malformed byte sequence: “dd”.

Malformed byte sequence: “ed”.

Malformed byte sequence: “f9”.

Malformed byte sequence: “f7”.

Malformed byte sequence: “eb”, “bc”.

Malformed byte sequence: “d2”.

Malformed byte sequence: “b9”.

Malformed byte sequence: “a4”.

Malformed byte sequence: “ab”.

Malformed byte sequence: “da”.

Malformed byte sequence: “b2”.

Malformed byte sequence: “fc”.

Malformed byte sequence: “ee”.

Malformed byte sequence: “a3”.

Malformed byte sequence: “cf”.

Malformed byte sequence: “e2”, “b0”.

Malformed byte sequence: “af”.

Malformed byte sequence: “d9”.

Malformed byte sequence: “eb”.

Malformed byte sequence: “e1”.

Malformed byte sequence: “c2”.

Malformed byte sequence: “ae”.

Malformed byte sequence: “e1”, “bd”.

Malformed byte sequence: “cd”.

Malformed byte sequence: “e8”, “b4”.

Malformed byte sequence: “eb”, “ba”.

Malformed byte sequence: “f1”.

Bad value “368px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.

Bad value “376px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.

The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

Malformed byte sequence: “e5”.

Malformed byte sequence: “ee”, “b7”.

Malformed byte sequence: “fb”.

Malformed byte sequence: “a9”.

Malformed byte sequence: “c9”.

Bad value “267px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.

Malformed byte sequence: “f0”.

Malformed byte sequence: “fd”.

Malformed byte sequence: “df”.

Malformed byte sequence: “de”.

Malformed byte sequence: “e0”.

Malformed byte sequence: “e2”, “b3”.

Malformed byte sequence: “e4”.

Malformed byte sequence: “e4”, “b0”.

Malformed byte sequence: “d0”.

Warnings

Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Empty heading.

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Text run is not in Unicode Normalization Form C.

NON-DOCUMENT-ERROR

Too many messages.

Ybmteachers.com Desktop Insights

Desktop Page Insights Tool

Last tested: 09/19/2018

Desktop

Desktop Speed

16%

Optimize images

Enable compression

Leverage browser caching

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

Minify HTML

Minify JavaScript

Minify CSS

Desktop Resource Breakdown

Total Resources	133
Number of Hosts	43
Static Resources	78
JavaScript Resources	22
CSS Resources	7

Ybmteachers.com Mobile Insights

Mobile Page Insights Tool

Last tested: 09/19/2018

Mobile

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

47%

Avoid landing page redirects

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

Leverage browser caching

Enable compression

Prioritize visible content

Optimize images

Minify CSS

Minify JavaScript

Minify HTML

Mobile Resource Breakdown

Total Resources	41
Number of Hosts	7
Static Resources	34
JavaScript Resources	13
CSS Resources	5

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Ybmteachers.com YBM원격교육연수원(교육부 인가 제07-1호)

Quick Summary

Ybmteachers.com General Information

Ybmteachers.com Alexa Rank History

Ybmteachers.com Safety Information

Ybmteachers.com Server Information

Ybmteachers.com Domain Name Information

Ybmteachers.com HTML Validation

Ybmteachers.com Desktop Insights

Ybmteachers.com Mobile Insights

Ybmteachers.com Nearest Competitors

Ybmteachers.com Typos