poj.org - Welcome To PKU JudgeOnline

Quick Summary

Online Status

Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.65 sec.
Last Checked: 02/11/2023

Over the time poj.org has been ranked as high as 12,024 in the world, while most of its traffic comes from China, where it reached as high as 14,408 position.

Poj.org receives about 2,123 unique visitors and 7,218 pageviews per day. The estimated value of poj.org is 122,640 USD. Each unique visitor makes about 3.4 pageviews on average.

Poj.org is registered under .ORG top-level domain. Check other websites in .ORG zone.

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

According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust poj.org is quite a safe domain.

Mobile-Friendly test indicates that poj.org is well optimized for mobile and tablet devices.

Poj.org General Information

Global Rank

92,296

Average Load Time

0.52sec

Links In Count

356

Website Value

$122,640

Audience Geography. Where are poj.org visitors located?

Country	Rank
China CN	14408
Bangladesh BD	19069
India IN	183650
United States US	393878

Country	Percent of Pageviews
China CN	86.6%
Bangladesh BD	1.5%
United States US	1.4%
India IN	1.1%
Other	9.4%

Country	Percent of Visitors
China CN	86.8%
United States US	3.4%
India IN	2.2%
Bangladesh BD	1.1%
Other	6.4%

Where do visitors go on poj.org?

Subdomain	Pageviews
poj.org	100%

Subdomain	Pageviews per User
poj.org	3.2

Subdomain	Reach
poj.org	100%

How popular is poj.org?

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	99145	17551	69	-18.27%
30	110754	24942	61	-25.23%
7	281577	203837	2	-78.836%
1	424565	22203	1	-10.96%

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	88998	38160	63	-48.049%	3.4	-36.4%
30	104541	24660	52	-28.36%	3.2	-4.23%
7	618728	506251	5	-89.249%	1	-49.239%
1	692905	-25739	4	-10.96%	1	0%

Period	Global Rank	Global Rank Delta
past 3 months	92296	23807
past month	103880	23731
past week	357006	273423
yesterday	524375	20447

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

Poj.org Safety Information

Overview

Last Updated: 04/28/2024

Overall result - "poj.org" 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: 03/22/2024

poj.org is safe.

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

Google Safe Search

Last Updated: 10/19/2016

poj.org 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 "poj.org".
"poj.org" is not a phishing page.
"poj.org" does not install unwanted software.
"poj.org" 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: 02/23/2021

poj.org is safe.

McAfee assesses poj.org 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 poj.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

poj.org child safety isvery good.

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

SSL Information

SSL Checker Tool

WARNING!	Certificate download error. Previous scan results are shown below.
WARNING!	Poj.org is not secured by SSL certificate.

Poj.org Server Information

Server Location

Geolocation Tool

Los Angeles

California

United States

ASN Information

ASN Lookup Tool

ASN ID: 3842
ASN Title: RAMNODE - RamNode LLC, US

Last Update: 10/06/2023

ASN Whois

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 3842
ASName: RAMNODE
ASHandle: AS3842
RegDate: 2012-07-26
Updated: 2012-07-26
Comment: http://www.ramnode.com
Ref: https://rdap.arin.net/registry/autnum/3842

OrgName: RamNode LLC
OrgId: RL-82
Address: 2870 Peachtree Rd NW #915-5414
City: Atlanta
StateProv: GA
PostalCode: 30305
Country: US
RegDate: 2012-07-09
Updated: 2017-06-21
Ref: https://rdap.arin.net/registry/entity/RL-82

OrgNOCHandle: RAMNO-ARIN
OrgNOCName: RamNode
OrgNOCPhone: +1-844-726-6633
OrgNOCEmail: arin@ramnode.com
OrgNOCRef: https://rdap.arin.net/registry/entity/RAMNO-ARIN

OrgTechHandle: RAMNO-ARIN
OrgTechName: RamNode
OrgTechPhone: +1-844-726-6633
OrgTechEmail: arin@ramnode.com
OrgTechRef: https://rdap.arin.net/registry/entity/RAMNO-ARIN

OrgAbuseHandle: ABUSE3621-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-844-726-6633
OrgAbuseEmail: abuse@ramnode.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE3621-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Poj.org Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: POJ.ORG
Registry Domain ID: D104932638-LROR
Registrar WHOIS Server: whois.22.cn
Registrar URL: https://www.22.cn
Updated Date: 2019-05-26T00:21:26Z
Creation Date: 2004-09-25T18:52:08Z
Registry Expiry Date: 2024-09-25T18:52:08Z
Registrar Registration Expiration Date:
Registrar: 22net, Inc.
Registrar IANA ID: 1555
Registrar Abuse Contact Email: abuse@22.cn
Registrar Abuse Contact Phone: +86.57188276020
Reseller:
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registrant Organization: shanghaituchongwangluokejiyouxiangongsi
Registrant State/Province: BEIJING
Registrant Country: CN
Name Server: F1G1NS1.DNSPOD.NET
Name Server: F1G1NS2.DNSPOD.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/)
>>> Last update of WHOIS database: 2021-05-14T10:43:24Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
poj.org	168.235.95.213	600

Host	MX Record	Priority	TTL
poj.org	ALT1.ASPMX.L.GOOGLE.COM	20	14400
poj.org	ALT2.ASPMX.L.GOOGLE.COM	20	14400
poj.org	ASPMX2.GOOGLEMAIL.COM	30	14400
poj.org	ASPMX3.GOOGLEMAIL.COM	30	14400
poj.org	ASPMX4.GOOGLEMAIL.COM	30	14400
poj.org	ASPMX5.GOOGLEMAIL.COM	30	14400
poj.org	ASPMX.L.GOOGLE.COM	10	14400

Host	NS Record	TTL
poj.org	f1g1ns1.dnspod.net	86400
poj.org	f1g1ns2.dnspod.net	86400

Host	TXT Record	TTL
poj.org	v=spf1 include:aspmx.googlemail.com ~all	14400

f1g1ns1.dnspod.net
TTL: 600
Email address: freednsadmin.dnspod.com
Serial: 1501660497
Refresh: 3600
Retry: 180
Expire: 1209600
Minimum: 180

Poj.org HTML Validation

HTML Validation Tool

Errors

Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.

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

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Attribute “leftmargin” not allowed on element “body” at this point.

The “link” attribute on the “body” element is obsolete. Use CSS instead.

The “alink” attribute on the “body” element is obsolete. Use CSS instead.

The “vlink” attribute on the “body” element is obsolete. Use CSS instead.

Attribute “bordercolor” not allowed on element “table” at this point.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “td” element is obsolete. Use CSS instead.

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “width” attribute on the “td” element is obsolete. Use CSS instead.

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

The “bgcolor” attribute on the “td” element is obsolete. Use CSS instead.

Table columns in range 3…4 established by element “td” have no cells beginning in them.

The “valign” attribute on the “tr” element is obsolete. Use CSS instead.

The “align” attribute on the “tr” element is obsolete. Use CSS instead.

The “bgcolor” attribute on the “tr” element is obsolete. Use CSS instead.

The “font” element is obsolete. Use CSS instead.

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

The “center” element is obsolete. Use CSS instead.

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

The “align” attribute on the “p” element is obsolete. Use CSS instead.

Warnings

The “language” attribute on the “script” element is obsolete. You can safely omit it.

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

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

Poj.org Desktop Insights

Desktop Page Insights Tool

Last tested: 06/27/2018

Desktop

Desktop Speed

92%

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

Reduce server response time

Enable compression

Leverage browser caching

Optimize images

Desktop Resource Breakdown

Total Resources	15
Number of Hosts	2
Static Resources	13
JavaScript Resources	2
CSS Resources	1

Poj.org Mobile Insights

Mobile Page Insights Tool

Last tested: 06/27/2018

Mobile

Mobile Usability

65%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Mobile Speed

82%

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

Reduce server response time

Enable compression

Leverage browser caching

Optimize images

Mobile Resource Breakdown

Total Resources	15
Number of Hosts	2
Static Resources	13
JavaScript Resources	2
CSS Resources	1

Poj.org Typos

www.poj.com
www.poj.net
www.poj.org
www.poj.info
www.poj.biz
www.poj.us
www.poj.mobi
www.oj.org
www.poj.org
www.ooj.org
www.pooj.org
www.opoj.org
www.loj.org
www.ploj.org
www.lpoj.org
www.pj.org
www.pij.org
www.poij.org
www.pioj.org
www.pkj.org
www.pokj.org
www.pkoj.org
www.plj.org
www.polj.org
www.ppj.org
www.popj.org
www.ppoj.org
www.po.org
www.pon.org
www.pojn.org
www.ponj.org
www.poh.org
www.pojh.org
www.pohj.org
www.pou.org
www.poju.org
www.pouj.org
www.poi.org
www.poji.org
www.pok.org
www.pojk.org
www.pom.org
www.pojm.org
www.pomj.org

Poj.org Welcome To PKU JudgeOnline

Quick Summary

Poj.org General Information

Poj.org Alexa Rank History

Poj.org Safety Information

Poj.org Server Information

Poj.org Domain Name Information

Poj.org HTML Validation

Poj.org Desktop Insights

Poj.org Mobile Insights

Poj.org Nearest Competitors

Poj.org Typos