Worlduc.com 世界大学城

世界大学城云技术支撑云平台由华夏高科技产业创新奖办公室、校园卡标准化研究所、北京禾田雨橡互联网科技有限公司联合组织开发，是基于云计算以用户空间为基础的资源共建共享型网络云平台，为国家科技支撑计划重大专项

Worlduc.com Overview

Worlduc.com ranking shows that the page is at position 238,281 over the world, while the bulk of its audience is from China, where it ranks 19,695.

It is beneficial to worlduc.com that their hosting company CHINATELECOM-CTCLOUD Cloud Computing Corporation, CN servers are located in China, as that reduces page load time for the majority of their users. See the list of other webpages hosted on CHINATELECOM-CTCLOUD Cloud Computing Corporation, CN servers.

In terms of rank-to-traffic ratio, worlduc.com has 320 unique users per day, viewing 2,747 pages. The rank based value of worlduc.com is 49,719 USD. Every user makes 9.19 pageviews on average.

Worlduc.com boasts a link base consisting of 386 referring domains and 432 external backlinks, as revealed by the data obtained from web network scanning.

Worlduc.com top-level domain belongs to .COM domain zone. Check other webpages in .COM zone.

According the last verification test in January 28, 2026, worlduc.com has an invalid SSL certificate. Click button “Update” SSL Information at the Safety Information section.

Based on data from Google Safe Browsing, Google Safe Search and Symantec worlduc.com is a fairly safe domain.

Based on Mobile-Friendly test by Google worlduc.com is poorly optimized for mobile phones and tablets. Remember that optimizing your website design for mobile devices ensures that all of your web pages perform well on all devices, page loading speed can also be accelerated.

Worlduc.com Rank Summary

Global Rank

238,281

Average Load Time

0.79sec

Links In Count

252

Website Value

$46,036

Audience Geography. Where are worlduc.com visitors located?

Country	Visitors
China CN	97.3%
Other	2.8%

Country	Pageviews
China CN	99.8%
Other	0.2%

Country	Rank
China CN	19695

Where do visitors go on worlduc.com?

Subdomain	Pageviews
worlduc.com	99.24%
other	0.77%

Subdomain	Pageviews per User
worlduc.com	10

Subdomain	Reach
worlduc.com	99.67%

How popular is worlduc.com?

Period	Global Rank	Global Rank Delta
past 3 months	238281	141246
past month	168760	-262145
past week	568520	466991
yesterday	122942	0

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	131770	75314	38	-64.77%	8.5	10%
30	68315	-668710	87	2000%	10	1000%
7	907953	867923	3	-98.115%	1	-92.867%
1	210635	0	2	0%	1	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	314047	189243	17	-68.343%
30	241770	-96915	2	50%
7	447789	300724	1	-73.56%
1	99313	0	8	0%

Worlduc.com Website Safety

Overview

Last Updated: 01/28/2026

Overall result - worlduc.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: 03/24/2025

worlduc.com is safe.

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

Google Safe Search

Last Updated: 11/01/2016

worlduc.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

worlduc.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: 02/24/2021

worlduc.com is safe.

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

Web of Trust

Last Updated: 01/28/2026

worlduc.com child safety is unknown.

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

SSL Information

SSL Checker Tool

WARNING!	Certificate download error. Previous scan results are shown below.
Domain	Unknown
Issuer Organization	Unknown
Issuer	Unknown
Algorithm	Unknown
Valid form	Unknown
Expiration	Unknown
Signed	No information
Additional Domains

Worlduc.com Rank History

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

Worlduc.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 58519

ASN Title: CHINATELECOM-CTCLOUD Cloud Computing Corporation, CN

Last Update: 12/16/2025

#
# 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.
#

No match found for a 58519.

#
# 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.
#

Worlduc.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: WORLDUC.COM
Registry Domain ID: 1510827809_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2024-07-20T00:53:10Z
Creation Date: 2008-07-29T05:53:48Z
Registry Expiry Date: 2025-07-29T05:53:48Z
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: DNS15.HICHINA.COM
Name Server: DNS16.HICHINA.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-13T07:30:15Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
worlduc.com	123.58.254.60	600

Host	MX Record	Priority	TTL
worlduc.com	mail.worlduc.com	5	3600

Host	NS Record	TTL
worlduc.com	dns16.hichina.com	86400
worlduc.com	dns15.hichina.com	86400

Host	TXT Record	TTL

dns15.hichina.com
TTL: 3600
Email address: hostmaster.hichina.com
Serial: 2019041000
Refresh: 3600
Retry: 1200
Expire: 86400
Minimum: 360

Worlduc.com HTML Check

HTML Validation Tool

Errors

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

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 “” for attribute “action” on element “form”: Must be non-empty.

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

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

Element “p” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)

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

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

Element “img” is missing required attribute “src”.

Attribute “target” not allowed on element “ul” at this point.

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

The “hspace” attribute on the “img” element is obsolete. Use CSS instead.

The “vspace” attribute on the “img” element is obsolete. Use CSS instead.

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

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

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

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

The “type” attribute is unnecessary for JavaScript resources.

Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.

Worlduc.com Desktop Performance

Last tested: 09/04/2016

Desktop Speed

51%

Leverage browser caching

Enable compression

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

Optimize images

Prioritize visible content

Minify HTML

Minify CSS

Desktop Resource Breakdown

Total Resources	115
Number of Hosts	1
Static Resources	102
JavaScript Resources	8
CSS Resources	2

Worlduc.com Mobile Insights

Last tested: 09/04/2016

Mobile Usability

58%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Avoid plugins

Mobile Speed

43%

Leverage browser caching

Enable compression

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

Optimize images

Minify HTML

Minify CSS

Mobile Resource Breakdown

Total Resources	121
Number of Hosts	1
Static Resources	108
JavaScript Resources	8
CSS Resources	2

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Worlduc.com 世界大学城

Worlduc.com Overview

Worlduc.com Rank Summary

Worlduc.com Website Safety

Worlduc.com Rank History

Worlduc.com Hosting Information

Worlduc.com Domain Registration and Settings

Worlduc.com HTML Check

Worlduc.com Desktop Performance

Worlduc.com Mobile Insights

Worlduc.com Similar Audits

Worlduc.com Common Typos