Sec.sg
Server IP address resolved: No
Http response code: None
Last Checked: 11/02/2026
Sec.sg attracts 5,117 unique visitors daily, generating 15,350 pageviews. The estimated value of sec.sg is 16,564 USD. Each visitor views approximately 3.21 pages on average.
Sec.sg is hosted by National University of Singapore. Check out other websites hosted by National University of Singapore.
See the list of other websites hosted by National University of Singapore.
Sec.sg is registered with the .SG top-level domain. Explore additional websites within the .SG zone.
According to the latest verification on (November 02, 2026), sec.sg has an invalid SSL certificate. Click the "Refresh" button in the Safety Information section for updated SSL details.
According to Google Safe Browsing and Symantec sec.sg appears to be a safe domain.
Based on Google's Mobile-Friendly test, sec.sg is not well optimized for mobile and tablet devices. Ensuring your site is mobile-friendly guarantees better performance across all devices, and improving the web page loading time could further enhance user experience.
not found
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 sec.sg 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 sec.sg 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 sec.sg for mature or inappropriate content, only security checks are evaluated.
The WOT calculates reputation of the sec.sg. This reputation system receives ratings from users and information from third-party sources, assesses the sec.sg for safety features and confirms, whether sec.sg 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: 7472
ASN Title: National University of Singapore
Last Update: 02/20/2026
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS7467 - AS7722'
as-block: AS7467 - AS7722
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
last-modified: 2008-09-04T06:40:26Z
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 'AS7472'
% Abuse contact for 'AS7472' is 'abuse@nus.edu.sg'
aut-num: AS7472
as-name: NUS-AS-AP
descr: Computer Centre
descr: National University of Singapore
descr: 10 Kent Ridge Crescent
descr: Singapore 119260
country: SG
org: ORG-NUOS1-AP
admin-c: CN89-AP
tech-c: CN89-AP
mnt-by: MAINT-NUS-AP
mnt-irt: IRT-NUS-SG
last-modified: 2018-07-05T13:00:25Z
source: APNIC
irt: IRT-NUS-SG
address: Computer Centre
address: 2 Engineering Drive 4
address: National University of Singapore
address: Singapore 117584
e-mail: abuse@nus.edu.sg
abuse-mailbox: abuse@nus.edu.sg
admin-c: CN89-AP
tech-c: CN89-AP
auth: # Filtered
mnt-by: MAINT-NUS-AP
last-modified: 2011-02-17T06:56:57Z
source: APNIC
organisation: ORG-NUOS1-AP
org-name: National University of Singapore
country: SG
address: 2 Engineering Drive 4
phone: +65-6516-7440
fax-no: +65-6778-0198
e-mail: infranoc@nus.edu.sg
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2018-07-05T12:57:19Z
source: APNIC
person: NUS Computer Centre Network Group
address: Computer Centre
address: 2 Engineering Drive 4
address: National University of Singapore
address: Singapore 117584
country: SG
phone: +65-8742484
fax-no: +65-7780198
e-mail: ccenet@nus.edu.sg
nic-hdl: CN89-AP
mnt-by: MAINT-NUS-AP
last-modified: 2008-09-04T07:29:13Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US3)
----------------------------------------------------------------------
SGNIC WHOIS Server
----------------------------------------------------------------------
The following data is provided for information purposes only.
Registrar: ASCIO TECHNOLOGIES INC
Domain Name: SEC.SG
Creation Date: 10-May-2019 17:08:01
Modified Date: 16-Feb-2022 12:52:27
Expiration Date: 10-May-2024 17:08:01
Domain Status: OK
Domain Status: CLIENT TRANSFER PROHIBITED
Domain Status: VerifiedID@SG-Mandatory
Domain Status: VerifiedID@SG-OK (VERIFIED BY ADMIN CONTACT)
Registrant:
Name: ETH SINGAPORE SEC LTD. (SGNIC-ORG1720297)
Administrative Contact:
Name: DANIEL SIN (SGNIC-PER20324910)
Technical Contact:
Name: DANIEL SIN (SGNIC-PER20324914)
Email: daniel.sin@sec.ethz.ch
Name Servers:
NS1.SEC.SG (255.255.255.255)
NS2.SEC.SG (255.255.255.255)
NS3.SEC.SG (137.132.22.33)
DNSSEC:
unsigned
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