3JEDU.CO.KR Website Information

3jedu.co.kr Website Information

Daily Unique Visits: 0

Daily Page Views: 0

Income Per Day: $0

Estimated Value: $9

This website is located in Korea and is using following IP address 27.102.217.4. See the complete list of popular websites hosted in Korea.

3jedu.co.kr is registered under .KR top-level domain. Please check other sites in .KR zone.

Website 3jedu.co.kr is using the following name servers:

  • ns259.dnsever.com
  • ns74.dnsever.com
  • ns26.dnsever.com
  • ns231.dnsever.com
  • ns48.dnsever.com

and is probably hosted by AMAZON-02 - Amazon.com, Inc., US. See the full list of other websites hosted by AMAZON-02 - Amazon.com, Inc., US.

The highest website 3jedu.co.kr position in Alexa rank database was 11856 and the lowest rank position was 974391. Current position of 3jedu.co.kr in Alexa rank database is below 1 million.

Desktop speed score of 3jedu.co.kr (64/100) is better than the results of 41.34% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of 3jedu.co.kr (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.

Mobile speed score of 3jedu.co.kr (12/100) is better than the results of 1.97% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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3jedu.co.kr Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


3jedu.co.kr whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


query : 3jedu.co.kr

# KOREAN(UTF8)

도메인이름 : 3jedu.co.kr
등록인 : 주식회사 쓰리제이에듀
등록인 주소 : 경기도 안산시 단원구 광덕2로 164-4(고잔동) 4층
등록인 우편번호 : 15476
책임자 : 주식회사 쓰리제이
책임자 전자우편 : dev@dshare.co.kr
책임자 전화번호 : 031-365-5466
등록일 : 2011. 09. 15.
최근 정보 변경일 : 2021. 04. 06.
사용 종료일 : 2026. 09. 15.
정보공개여부 : Y
등록대행자 : (주)아이티이지(http://www.iteasy.co.kr)
DNSSEC : 미서명

1차 네임서버 정보
호스트이름 : ns-2023.awsdns-60.co.uk

2차 네임서버 정보
호스트이름 : ns-440.awsdns-55.com
호스트이름 : ns-1275.awsdns-31.org
호스트이름 : ns-861.awsdns-43.net

네임서버 이름이 .kr이 아닌 경우는 IP주소가 보이지 않습니다.

# ENGLISH

Domain Name : 3jedu.co.kr
Registrant : 3jedu
Registrant Address : 164-4, Gwangdeok 2-ro, Danwon-gu, Ansan-si, Gyeonggi-do, daesun B/D 4th floor
Registrant Zip Code : 15476
Administrative Contact(AC) : 3jedu
AC E-Mail : dev@dshare.co.kr
AC Phone Number : 031-365-5466
Registered Date : 2011. 09. 15.
Last Updated Date : 2021. 04. 06.
Expiration Date : 2026. 09. 15.
Publishes : Y
Authorized Agency : ITEASY inc(http://www.iteasy.co.kr)
DNSSEC : unsigned

Primary Name Server
Host Name : ns-2023.awsdns-60.co.uk

Secondary Name Server
Host Name : ns-440.awsdns-55.com
Host Name : ns-1275.awsdns-31.org
Host Name : ns-861.awsdns-43.net

- KISA/KRNIC WHOIS Service -

3jedu.co.kr server information

Servers Location

3jedu.co.kr desktop page speed rank

Last tested: 2016-08-01


Desktop Speed Bad
64/100

3jedu.co.kr Desktop Speed Test Quick Summary


priority - 24Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

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http://3jedu-vod-cdn.daouidc.com/vod/web_img/main/left_quick_img_02.jpg (expiration not specified)
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http://3jedu.co.kr/3jedu_file/item/1456485501167_item.jpg (expiration not specified)
http://3jedu.co.kr/3jedu_file/item/tpo-pop-banner01(1).jpg (expiration not specified)
http://3jedu.co.kr/html/css/Nwagon.css (expiration not specified)
http://3jedu.co.kr/html/css/common.css (expiration not specified)
http://3jedu.co.kr/html/css/font-face.css (expiration not specified)
http://3jedu.co.kr/html/css/footer.css (expiration not specified)
http://3jedu.co.kr/html/css/header.css (expiration not specified)
http://3jedu.co.kr/html/css/main.css (expiration not specified)
http://3jedu.co.kr/html/images/btn_01.png (expiration not specified)
http://3jedu.co.kr/html/images/common/btn_open.gif (expiration not specified)
http://3jedu.co.kr/html/images/common/ft_logo.gif (expiration not specified)
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http://3jedu.co.kr/html/images/common/logo.png (expiration not specified)
http://3jedu.co.kr/html/images/common/logo_bg.png (expiration not specified)
http://3jedu.co.kr/html/images/common/menu_bg.png (expiration not specified)
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http://3jedu.co.kr/js/pl.js (expiration not specified)
http://www.google-analytics.com/analytics.js (2 hours)

priority - 14Enable compression

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priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 1Minify HTML

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priority - 0Minify CSS

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3jedu.co.kr Desktop Resource Breakdown

Total Resources62
Number of Hosts6
Static Resources49
JavaScript Resources9
CSS Resources7

3jedu.co.kr mobile page speed rank

Last tested: 2019-12-06


Mobile Speed Bad
12/100

3jedu.co.kr Mobile Speed Test Quick Summary


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priority - 92Enable compression

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priority - 34Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://3jedu.co.kr/
http://3jedu.co.kr/m/main
https://www.3jedu.co.kr/m/main

priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

https://www.3jedu.co.kr/m/css/boot.css

priority - 10Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://3jedu-pdf-cdn.daouidc.com/voca/fonts/NanumSquareEB.woff (expiration not specified)
https://3jedu-pdf-cdn.daouidc.com/voca/fonts/NanumSquareR.woff (expiration not specified)
https://analysis.adinsight.co.kr/emnet/trs_esc.js (expiration not specified)
https://www.3jedu.co.kr/js/boot.js (expiration not specified)
https://www.3jedu.co.kr/js/jquery-1.12.4.js (expiration not specified)
https://www.3jedu.co.kr/js/jquery-ui.js (expiration not specified)
https://www.3jedu.co.kr/js/jquery.validate.js (expiration not specified)
https://www.3jedu.co.kr/js/sly.min.js (expiration not specified)
https://www.3jedu.co.kr/js/swiper.min.js (expiration not specified)
https://www.3jedu.co.kr/js/vendor_plugins.js (expiration not specified)
https://www.3jedu.co.kr/m/css/boot.css (expiration not specified)
https://www.3jedu.co.kr/m/css/jquery-ui.css (expiration not specified)
https://www.3jedu.co.kr/m/css/swiper.min.css (expiration not specified)
https://wcs.naver.net/wcslog.js (37.2 minutes)

priority - 5Minify CSS

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Minify CSS for the following resources to reduce their size by 44.5KiB (15% reduction).

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priority - 2Reduce server response time

In our test, your server responded in 0.32 seconds.

priority - 2Minify HTML

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Minify HTML for the following resources to reduce their size by 14.7KiB (34% reduction).

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priority - 0Minify JavaScript

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3jedu.co.kr Mobile Resource Breakdown

Total Resources98
Number of Hosts6
Static Resources84
JavaScript Resources12
CSS Resources6

3jedu.co.kr mobile page usability

Last tested: 2019-12-06


Mobile Usability Good
100/100

3jedu.co.kr HTML validation

Errors

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

Line: 87 Column: 17 - 57
"... <img src="/html/images/gnb/logo_016.png"> ..." Line: 96 Column: 19 - 59
"... <img src="/html/images/gnb/logo_011.png"> ..." Line: 105 Column: 19 - 59
"... <img src="/html/images/gnb/logo_012.png"> ..." Line: 114 Column: 19 - 59
"... <img src="/html/images/gnb/logo_013.png"> ..." Line: 123 Column: 19 - 59
"... <img src="/html/images/gnb/logo_015.png"> ..." Line: 132 Column: 19 - 59
"... <img src="/html/images/gnb/logo_014.png"> ..." Line: 141 Column: 19 - 59
"... <img src="/html/images/gnb/logo_017.png"> ..." Line: 209 Column: 25 - 78
"...ss="foot"><img src="/html/images/gnb/3jlogo.png" class="f_logo"></div>..."

Bad value “https://www.3jedu.co.kr/html/main” for attribute “rel” on element “a”: The string “https://www.3jedu.co.kr/html/main” is not a registered keyword.

Line: 93 Column: 13 - 93
"... <a rel="https://www.3jedu.co.kr/html/main" class="lsso" style="cursor: pointer;"> ..."

Bad value “https://www.3jm.co.kr” for attribute “rel” on element “a”: The string “https://www.3jm.co.kr” is not a registered keyword.

Line: 102 Column: 13 - 81
"... <a rel="https://www.3jm.co.kr" class="lsso" style="cursor: pointer;"> ..."

Bad value “https://www.3jbooks.co.kr” for attribute “rel” on element “a”: The string “https://www.3jbooks.co.kr” is not a registered keyword.

Line: 111 Column: 13 - 85
"... <a rel="https://www.3jbooks.co.kr" class="lsso" style="cursor: pointer;"> ..."

Bad value “https://www.3jvoca.co.kr” for attribute “rel” on element “a”: The string “https://www.3jvoca.co.kr” is not a registered keyword.

Line: 129 Column: 13 - 84
"... <a rel="https://www.3jvoca.co.kr" class="lsso" style="cursor: pointer;"> ..."

Stray start tag “form”.

Line: 227 Column: 5 - 71
"...p --> <form style="display: hidden" action="" method="POST" id="ssoform"> <i..."

Cannot recover after last error. Any further errors will be ignored.

Line: 227 Column: 5 - 71
"...p --> <form style="display: hidden" action="" method="POST" id="ssoform"> <i..."

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3jedu.co.kr Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.


3jedu.co.kr TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.