Century21.com.tw 21世紀不動產 Century21
21世紀不動產提供您買屋、賣屋、海外投資置產及實價登錄行情等相關資訊,透過整合性的科技服務平台,讓您隨時隨地掌握全世界的最新房產資訊。
Server IP address resolved: No
Http response code: None
Last Checked: 12/18/2025
Century21.com.tw attracts 752 unique visitors daily, generating 2,106 pageviews. The estimated value of century21.com.tw is 42,179 USD. Each visitor views approximately 3.00 pages on average.
According to Majestic's traffic estimates, century21.com.tw ranks 39,459 globally, with the majority of its visitors coming from Taiwan, where it holds the 6,430 position.
It is beneficial for century21.com.tw that their data center (provided by NCIC-TW New Century InfoComm Tech Co., Ltd., TW) is located in Taiwan, as this helps reduce page load time for most visitors.
See the list of other websites hosted by NCIC-TW New Century InfoComm Tech Co., Ltd., TW.
Century21.com.tw is registered with the .TW top-level domain. Explore additional websites within the .TW zone.
According to the latest verification on (December 18, 2025), century21.com.tw has an invalid SSL certificate. Click the "Refresh" button in the Safety Information section for updated SSL details.
According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust century21.com.tw appears to be a safe domain.
Based on Google's Mobile-Friendly test, century21.com.tw is optimized for mobile and tablet devices, although the web page loading speed could be improved.

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 ConnectSafe evaluates century21.com.tw for any unsafe and insecure content. The results are critical for families with young children.

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.

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.

McAfee assesses century21.com.tw 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 century21.com.tw for mature or inappropriate content, only security checks are evaluated.

The WOT calculates reputation of the century21.com.tw. This reputation system receives ratings from users and information from third-party sources, assesses the century21.com.tw for safety features and confirms, whether century21.com.tw is suitable for children.
| 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 |
ASN ID: 9919
ASN Title: NCIC-TW New Century InfoComm Tech Co., Ltd., TW
Last Update: 12/16/2025
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS9216 - AS10239'
as-block: AS9216 - AS10239
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
mnt-lower: APNIC-HM
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source: APNIC
role: APNIC Hostmaster
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address: South Brisbane
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country: AU
phone: +61 7 3858 3100
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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 'AS9915 - AS9924'
as-block: AS9915 - AS9924
descr: TWNIC-TW-AS-BLOCK
remarks: These AS numbers are further assigned by TWNIC
remarks: to TWNIC members
admin-c: TWA2-AP
tech-c: TWA2-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-TW-TWNIC
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source: APNIC
role: TWNIC Whois Administrator
address: Taiwan Network Information Center
address: 4F-2, No. 9 Sec. 2, Roosevelt Rd.,
address: Taipei, Taiwan, 100
country: TW
phone: +886-2-23411313
fax-no: +886-2-23968871
e-mail: hostmaster@twnic.net.tw
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nic-hdl: TWA2-AP
notify: hostmaster@twnic.net.tw
mnt-by: MAINT-TW-TWNIC
last-modified: 2008-09-04T07:54:15Z
source: APNIC
% Information related to 'AS9919'
% Abuse contact for 'AS9919' is 'hostmaster@twnic.net.tw'
aut-num: AS9919
as-name: NCIC-TW
descr: New Century InfoComm Tech Co., Ltd.
descr: 12F, No.466, Rueiguang Rd.,
descr: Taipei, Taiwan, 114
country: TW
import: from AS7473
action pref=100;
accept ANY
import: from AS3462
action pref=90;
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announce AS9919
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action pref=100;
networks ANY
admin-c: nNA3-AP
tech-c: nNA3-AP
mnt-by: MAINT-TW-TWNIC
mnt-irt: IRT-TWNIC-AP
last-modified: 2015-12-01T22:12:56Z
source: APNIC
irt: IRT-TWNIC-AP
address: Taipei, Taiwan, 100
e-mail: hostmaster@twnic.net.tw
abuse-mailbox: hostmaster@twnic.net.tw
admin-c: TWA2-AP
tech-c: TWA2-AP
auth: # Filtered
remarks: Please note that TWNIC is not an ISP and is not empowered
remarks: to investigate complaints of network abuse.
mnt-by: MAINT-TW-TWNIC
last-modified: 2015-10-08T07:58:24Z
source: APNIC
role: ncic Network Administrator
address: 1F~11F, No. 218, Rueiguang Road
address: Taipei, Taiwan, 114, R.O.C
country: TW
phone: +886-2-7715-5128
fax-no: +886-2-7715-5299
e-mail: DavidLin1@fareastone.com.tw
admin-c: JC256-AP
tech-c: JC256-AP
nic-hdl: nNA3-AP
remarks: The role object should be used when making
remarks: changes to admin-c or tech-c handle.
notify: hostmaster@twnic.net.tw
mnt-by: MAINT-TW-TWNIC
last-modified: 2010-05-31T07:44:01Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)
Domain Name: century21.com.tw
Domain Status: clientTransferProhibited
Registrant:
二十一世紀不動產股份有限公司
CENTURY21 REAL ESTATE OF TAIWAN LTD.
c21it@century21.com.tw
TW
(Redacted for privacy)
Administrative Contact:
(Redacted for privacy)
Technical Contact:
(Redacted for privacy)
Record expires on 2026-05-31 00:00:00 (UTC+8)
Record created on 1997-05-01 11:58:26 (UTC+8)
Domain servers in listed order:
amanda.ns.cloudflare.com
vick.ns.cloudflare.com
Registration Service Provider: PCHOME
Registration Service URL: http://myname.pchome.com.tw
| Host | A Record | TTL |
|---|
| Host | MX Record | Priority | TTL |
|---|---|---|---|
| century21.com.tw | alt3.aspmx.l.google.com | 10 | 3600 |
| century21.com.tw | aspmx3.googlemail.com | 10 | 3600 |
| century21.com.tw | aspmx4.googlemail.com | 10 | 3600 |
| century21.com.tw | aspmx.l.google.com | 1 | 3600 |
| century21.com.tw | alt1.aspmx.l.google.com | 5 | 3600 |
| century21.com.tw | alt2.aspmx.l.google.com | 5 | 3600 |
| century21.com.tw | aspmx5.googlemail.com | 10 | 3600 |
| century21.com.tw | alt4.aspmx.l.google.com | 10 | 3600 |
| century21.com.tw | aspmx2.googlemail.com | 10 | 3600 |
| Host | NS Record | TTL |
|---|---|---|
| century21.com.tw | ns1.cyberdns.tw | 3600 |
| century21.com.tw | ns2.cyberdns.tw | 3600 |
| Host | TXT Record | TTL |
|---|---|---|
| century21.com.tw | facebook-domain-verification=w2af31iquxxoeaia0u7uddsx2o7tre | 3600 |
localhost\@
TTL: 3600
Email address: hostmaster.century21.com.tw
Serial: 2019
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 3600
Last tested: 10/12/2016

| Total Resources | 242 |
| Number of Hosts | 35 |
| Static Resources | 216 |
| JavaScript Resources | 61 |
| CSS Resources | 32 |
Last tested: 10/12/2016


| Total Resources | 242 |
| Number of Hosts | 39 |
| Static Resources | 203 |
| JavaScript Resources | 62 |
| CSS Resources | 33 |
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