Cdeledu.com 正保远程教育-专注职业教育和服务

正保远程教育（China Distance Education Holdings Ltd., CDEL）成立于2000年，为北京市高新技术企业、联合国教科文组织技术与职业教育培训在中国的试点项目。经教育部批准，常年开展面向多行业、多领域的网络教育，并提供远程多媒体网络教育平台系列产品。

Cdeledu.com Overview

cdeledu.com is a website belonging to China Distance Education Holdings Ltd. (CDEL), which is a publicly traded company listed on the New York Stock Exchange. The website serves as a platform for distance education in China and is part of a pilot project by the United Nations Educational, Scientific and Cultural Organization (UNESCO) for technical and vocational training. It was established in 2000 and is recognized as a high-tech enterprise by the Beijing Municipal Government.

The purpose of cdeledu.com is to provide online education and a range of multimedia educational products across various industries and fields. The website is approved by the Ministry of Education and operates throughout the year. It offers a comprehensive online learning experience through its remote multimedia network education platform.

In terms of website metrics, cdeledu.com receives an average of 669 unique users per day, with a total of 2943.6 page views. The estimated value of the website is assessed at 52560 US dollars. The website is hosted by CHINA-ABITCOOL Abitcool(China) Inc. in China.

The website has a .COM top-level domain, indicating its commercial nature. It also has SSL certification issued by Symantec Corporation, reinforcing its commitment to security and ensuring that users' information is protected.

To determine whether the site is family-friendly, more information about its content and services would be required. However, considering that it is an educational platform, it is likely to offer age-appropriate learning materials.

PageSpeed Insights scores the speed of the website at 63, indicating a moderate loading speed. This score can be improved to provide a better user experience by optimizing the website's performance, caching, and compressing resources.

In terms of external sites linking to cdeledu.com, there are 1247 backlinks from different websites. These backlinks help in enhancing the website's visibility and improving its search engine rankings. Additionally, there are 1103 referring domains, which indicates the number of unique websites that are directing traffic to cdeledu.com.

Overall, cdeledu.com serves as an important platform for distance education in China, offering a wide range of educational resources and products. Through its online learning platform, it aims to provide accessible and quality education to learners across various industries and fields.

Cdeledu.com Rank Summary

Global Rank

221,494

Average Load Time

1.77sec

Links In Count

141

Website Value

$52,613

Audience Geography. Where are cdeledu.com visitors located?

Country	Visitors
China CN	100%

Country	Pageviews
China CN	100%

Country	Rank
China CN	21269

Where do visitors go on cdeledu.com?

Subdomain	Pageviews

Subdomain	Pageviews per User

Subdomain	Reach

How popular is cdeledu.com?

Period	Global Rank	Global Rank Delta
past 3 months	221494	19544
past month	195953	-51470
past week	571262	462200

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	182767	37304	25	-24.32%	4.4	-19.67%
30	150768	-106508	33	100%	5	70%
7	911084	851894	3	-97.106%	1	-88.623%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	255928	11976	21	-5.831%
30	233505	-28828	2	20%
7	447701	302152	1	-74.56%

Cdeledu.com Website Safety

Overview

Last Updated: 12/26/2024

Overall result - cdeledu.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: 03/21/2023

cdeledu.com is safe.

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

Google Safe Search

Last Updated: 10/24/2016

cdeledu.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

cdeledu.com is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

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

cdeledu.com is safe.

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

Web of Trust

Last Updated: 12/26/2024

cdeledu.com child safety is unknown.

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

SSL Information

SSL Checker Tool

Domain	*.chinapen.org.cn
Issuer Organization	Symantec Corporation
Issuer	Symantec Class 3 Secure Server CA - G4
Algorithm	RSA-SHA256
Valid form	07/26/2017
Expiration	07/25/2020
Signed	Certificate is not self signed
Additional Domains	*.chinapen.org.cn chinapen.org.cn

Cdeledu.com Rank History

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

Cdeledu.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 23724

ASN Title: CHINANET-IDC-BJ-AP IDC, China Telecommunications Corporation, CN

Last Update: 07/19/2024

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

% Information related to 'AS23552 - AS24575'

as-block: AS23552 - AS24575
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
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tech-c: HM20-AP
mnt-by: APNIC-HM
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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
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nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
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source: APNIC

% Information related to 'AS23701 - AS23772'

as-block: AS23701 - AS23772
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
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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 'AS23724'

% Abuse contact for 'AS23724' is 'anti-spam@ns.chinanet.cn.net'

aut-num: AS23724
as-name: CHINANET-IDC-BJ-AP
descr: IDC, China Telecommunications Corporation
country: CN
import: from AS4134
action pref=100;
accept ANY
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accept AS4808
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announce AS23724
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announce AS23724
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announce AS23724
export: to AS4835
announce AS23724
admin-c: CH93-AP
tech-c: CH93-AP
notify: hostmaster@ns.chinanet.cn.net
mnt-by: MAINT-CHINANET
mnt-irt: IRT-CHINANET-CN
mnt-routes: MAINT-CHINANET
last-modified: 2016-10-17T00:30:13Z
source: APNIC

irt: IRT-CHINANET-CN
address: No.31 ,jingrong street,beijing
address: 100032
e-mail: anti-spam@ns.chinanet.cn.net
abuse-mailbox: anti-spam@ns.chinanet.cn.net
admin-c: CH93-AP
tech-c: CH93-AP
auth: # Filtered
mnt-by: MAINT-CHINANET
last-modified: 2010-11-15T00:31:55Z
source: APNIC

person: Chinanet Hostmaster
nic-hdl: CH93-AP
e-mail: anti-spam@ns.chinanet.cn.net
address: No.31 ,jingrong street,beijing
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phone: +86-10-58501724
fax-no: +86-10-58501724
country: CN
mnt-by: MAINT-CHINANET
last-modified: 2014-02-27T03:37:38Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)

Cdeledu.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: CDELEDU.COM
Registry Domain ID: 1384182053_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2022-01-05T02:00:52Z
Creation Date: 2008-01-21T08:54:44Z
Registry Expiry Date: 2027-01-21T08:54:44Z
Registrar: Alibaba Cloud Computing (Beijing) Co., Ltd.
Registrar IANA ID: 420
Registrar Abuse Contact Email: DomainAbuse@service.aliyun.com
Registrar Abuse Contact Phone: +86.95187
Domain Status: ok https://icann.org/epp#ok
Name Server: NS1.CDELEDU.COM
Name Server: NS2.CDELEDU.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-20T19:58:40Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Cdeledu.com HTML Check

HTML Validation Tool

Errors

Malformed byte sequence: “d5”.

Malformed byte sequence: “fd”.

Malformed byte sequence: “b1”.

Malformed byte sequence: “a3”.

Malformed byte sequence: “b3”.

Malformed byte sequence: “cc”.

Malformed byte sequence: “d3”.

Malformed byte sequence: “c3”.

Malformed byte sequence: “c0”.

Malformed byte sequence: “b9”.

Malformed byte sequence: “fa”.

Malformed byte sequence: “bd”.

Malformed byte sequence: “bb”.

Malformed byte sequence: “d2”.

Malformed byte sequence: “d7”.

Malformed byte sequence: “cb”.

Malformed byte sequence: “f9”.

Malformed byte sequence: “c9”.

Malformed byte sequence: “cf”.

Malformed byte sequence: “ca”.

Malformed byte sequence: “ab”.

Malformed byte sequence: “e1”, “bc”.

Malformed byte sequence: “c6”.

Malformed byte sequence: “b7”.

Malformed byte sequence: “a8”.

Malformed byte sequence: “c2”.

Malformed byte sequence: “ce”.

Malformed byte sequence: “b5”.

Malformed byte sequence: “c8”.

Malformed byte sequence: “c5”.

Malformed byte sequence: “e0”.

Malformed byte sequence: “a9”.

Malformed byte sequence: “c1”.

Malformed byte sequence: “a2”.

Malformed byte sequence: “da”.

Malformed byte sequence: “c4”.

Malformed byte sequence: “a1”.

Malformed byte sequence: “be”.

Malformed byte sequence: “df”.

Malformed byte sequence: “d0”.

Malformed byte sequence: “bc”.

Malformed byte sequence: “f5”.

Malformed byte sequence: “f3”.

Malformed byte sequence: “aa”.

Malformed byte sequence: “ba”.

Malformed byte sequence: “e9”.

Malformed byte sequence: “eb”.

Malformed byte sequence: “d4”.

Malformed byte sequence: “d6”.

Malformed byte sequence: “e3”.

Malformed byte sequence: “ee”.

Malformed byte sequence: “ad”.

Malformed byte sequence: “b2”.

Malformed byte sequence: “bf”.

Malformed byte sequence: “ac”.

Malformed byte sequence: “e6”.

Malformed byte sequence: “f2”, “b6”.

Malformed byte sequence: “b6”.

Malformed byte sequence: “ec”.

Malformed byte sequence: “f2”, “b5”.

Malformed byte sequence: “cd”.

Malformed byte sequence: “f8”.

Malformed byte sequence: “e7”, “bd”.

Malformed byte sequence: “e5”.

No space between the doctype public and system identifiers.

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

Internal encoding declaration “gb2312” disagrees with the actual encoding of the document (“utf-8”).

Bad value “text/html; charset=gb2312” for attribute “content” on element “meta”: “gb2312” is not a preferred encoding name. The preferred label for this encoding is “gbk”.

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

Malformed byte sequence: “dc”.

Malformed byte sequence: “ed”.

Malformed byte sequence: “af”.

Malformed byte sequence: “b4”.

Malformed byte sequence: “c7”.

Malformed byte sequence: “f2”, “bb”.

Malformed byte sequence: “f7”.

Malformed byte sequence: “b0”.

Bad value “only screen and(max-width: 640px)” for attribute “media” on element “link”: Expected a letter or whitespace but saw “(” instead.

Element “dl” is missing a required child element.

Malformed byte sequence: “d9”.

Malformed byte sequence: “fe”.

Malformed byte sequence: “e5”, “b9”.

Malformed byte sequence: “d8”.

Malformed byte sequence: “ef”, “b7”.

Malformed byte sequence: “e7”, “b2”.

Malformed byte sequence: “f0”.

Malformed byte sequence: “f1”, “ba”.

Malformed byte sequence: “e7”.

Malformed byte sequence: “f3”, “ba”.

No space between attributes.

Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.

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

Malformed byte sequence: “f2”, “bd”.

Malformed byte sequence: “ea”, “b3”.

Malformed byte sequence: “ea”.

Bad value “\images\cdeledu\cp-img.jpg” for attribute “src” on element “img”: Backslash ("\") used as path segment delimiter.

Malformed byte sequence: “f1”, “a3”, “ac”.

Malformed byte sequence: “ed”, “bd”.

Malformed byte sequence: “f3”, “b7”, “a2”.

Malformed byte sequence: “e0”, “bd”.

Malformed byte sequence: “e1”, “ba”.

Malformed byte sequence: “e2”.

Malformed byte sequence: “f2”.

Malformed byte sequence: “f6”.

Malformed byte sequence: “f0”, “b4”.

Malformed byte sequence: “a7”.

Malformed byte sequence: “f1”, “b5”.

Malformed byte sequence: “e0”, “be”.

Malformed byte sequence: “db”.

Malformed byte sequence: “e1”.

Malformed byte sequence: “a4”.

Malformed byte sequence: “de”.

Forbidden code point U+fde8.

Malformed byte sequence: “ea”, “b6”.

Malformed byte sequence: “ec”, “bd”.

Malformed byte sequence: “e3”, “b8”.

Malformed byte sequence: “b8”.

Malformed byte sequence: “fc”.

Malformed byte sequence: “f1”.

Malformed byte sequence: “ae”.

Malformed byte sequence: “ec”, “b5”.

Malformed byte sequence: “f1”, “a1”, “b0”.

Malformed byte sequence: “f2”, “bb”, “aa”.

Malformed byte sequence: “ec”, “be”.

Warnings

Attribute “"” is not serializable as XML 1.0.

NON-DOCUMENT-ERROR

Too many messages.

Cdeledu.com Desktop Performance

Last tested: 11/11/2016

Desktop Speed

80%

Leverage browser caching

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

Optimize images

Desktop Resource Breakdown

Total Resources	39
Number of Hosts	4
Static Resources	35
JavaScript Resources	1
CSS Resources	2

Cdeledu.com Mobile Insights

Last tested: 12/14/2017

Mobile Usability

100%

Mobile Speed

63%

Avoid landing page redirects

Optimize images

Enable compression

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

Minify JavaScript

Mobile Resource Breakdown

Total Resources	29
Number of Hosts	3
JavaScript Resources	5
CSS Resources	3

Cdeledu.com Common Typos

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Cdeledu.com 正保远程教育-专注职业教育和服务

Cdeledu.com Overview

Cdeledu.com Rank Summary

Cdeledu.com Website Safety

Cdeledu.com Rank History

Cdeledu.com Hosting Information

Cdeledu.com Domain Registration and Settings

Cdeledu.com HTML Check

Cdeledu.com Desktop Performance

Cdeledu.com Mobile Insights

Cdeledu.com Similar Audits

Cdeledu.com Common Typos