Domain Intelligence Report

cathaybk.com.tw

Full ownership history report — $29 at AboutUsCompare
Gathering intelligence... (12/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
Outline
WHOIS
NET-CHINESE · registered 23 years ago · expires May 1, 2036
DNS
1 A · 1 MX · 4 NS · 1 PTR · 1 SOA · 10 TXT
SSL/TLS
TAIWAN-CA · TLSv1.2 · expires in 41d · 2 SANs
Email Auth
SPF ✓ · DKIM ✗ · DMARC ✗ (p=quarantine)
DNSSEC
not signed
Tech Stack
Email: Self-hosted
HTTP
2 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✓ · Nosniff ✓
Security
B (155/215) · 2 high
Threats
risk: none
Deliverability
91% A (82/90 points) · 1 MX · 1 IPs · 4 issue(s)
Subdomains
0 found · 112 answered
Web Archive
archived, first date unknown
DNS Recordschecked 11.3d ago
Details
1 A · 1 MX · 4 NS · 1 PTR · 1 SOA · 10 TXT
WHOISchecked 11.3d ago
Details
NET-CHINESE
Registered 23 years ago
Expires May 1, 2036
Then vs Nownew
No card for this name. We compare then and now for domains that are in the top million and had an AboutUs page. That says nothing about this domain’s age or safety.
Check what it is now →
SSL/TLSchecked 11.3d ago
Details
Valid certificate
Issuer: TAIWAN-CA
Protocol: TLSv1.2
Expires in 41 days
2 SAN(s)
Securitychecked 11.3d ago
Details
B
155/215
2 high1 medium
Weakest: Basic Security, Advanced Security
Email Authchecked 11.3d ago
Details
SPFDKIM?DMARC
Policy: quarantine
DNSSECchecked 11.3d ago
Details
Not DNSSEC-signed
Tech Stackchecked 11.3d ago
Details
Email: Self-hostedAtlassian
HTTP / Headerschecked 11.3d ago
Details
2 redirect(s) → 200
HSTSCSPX-FrameNosniff
Threatschecked 11.3d ago
Details
Risk: none · score 0
Zone census
Subdomainschecked 11.3d ago
Details
0 found · 112 answered
Click a subdomain for its full report
Web Archivechecked 11.3d ago
Details
First archived: unknown
Deliverabilitychecked 11.3d ago
Details
91%A
82/90 points · 4 issue(s)
1 MX · 1 IP(s)

IPv6

Measured 2026-11-14 04:58 UTC · aaaa.bot
D

The website has no IPv6.

cathaybk.com.tw has no IPv6 address published.

  • ✗ cathaybk.com.tw: no IPv6 address
  • ✗ www.cathaybk.com.tw: no IPv6 address
  • ✗ Mail: 0 of 1 servers have IPv6
  • ✗ Nameservers: none have IPv6
Details: published addresses and what answered
cathaybk.com.twPublishedno IPv6 address publishedAnswers when we connectnothing to test
www.cathaybk.com.twPublishedno IPv6 address publishedAnswers when we connectnothing to test
MailPublishedpximss02.cathaybk.com.twAnswers when we connect✗ no IPv6
NameserversPublishedpxdns07.cathaybk.com.twpxdns09.cathaybk.com.twpxdns08.cathaybk.com.twpxdns10.cathaybk.com.twAnswers when we connect✗ no IPv6✗ no IPv6✗ no IPv6✗ no IPv6
First measured 2026-11-14: no IPv6 publishedIf this changes, the date will appear here.

See where it lives on the IPv4 map →

Lineage

Our records: Apr 18, 2009 → Nov 14, 2026

Oldest registry snapshot we hold: 2025 · 1 renewal on record. These dates are when our records begin, not when the domain was registered.

Registrar

  • Net-Chineselast seen Feb 2026
    Jan – Feb 2026

DNS provider

  • cathaybk.com.tw
    Apr 2009 – Jun 2026

IPv6

  • IPv6no IPv6 published
    First measured Nov 2026
What changed
  1. IPv6 first measured: no IPv6 published on Nov 14, 2026cathaybk.com.tw: no IPv6 published. Grade D. Measured by aaaa.bot, 2026-11-14 04:58 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
  2. Renewed +10 years between Jan 7, 2026 and Feb 12, 2026Expiry moved from 2026-05-01 to 2036-05-01, at NET-CHINESE.
  3. New nameservers at cathaybk.com.tw between Jul 12, 2025 and Aug 4, 2025pxdns02.cathaybk.com.tw, pxdns05.cathaybk.com.tw, pxdns06.cathaybk.com.tw → pxdns07.cathaybk.com.tw, pxdns08.cathaybk.com.tw, pxdns09.cathaybk.com.tw, pxdns10.cathaybk.com.tw. Old set last seen in WHOIS on 2025-07-12; new set first seen in WHOIS on 2025-08-04.
  4. New nameservers at cathaybk.com.tw between Aug 18, 2014 and Nov 12, 2014pxdns01.cathaybk.com.tw, pxdns02.cathaybk.com.tw → pxdns02.cathaybk.com.tw, pxdns03.cathaybk.com.tw. Old set last seen in WHOIS on 2014-08-18; new set first seen in WHOIS on 2014-11-12.

Solid bar: the stretch we observed that name. Dot: a single sighting. Dotted line: no record between sightings of the same name. Nothing is drawn between different names.

Registrar and renewals: 8 WHOIS/RDAP snapshots, 2025-08-04 to 2026-04-24 (ledger built 2026-09-27). Every renewal

DNS provider, WHOIS snapshots: 238 WHOIS/RDAP snapshots that listed nameservers, 2009-04-18 to 2026-06-12 (who.is archive). Both sources feed one row per provider (hover a bar to see which); a change is placed between the nearest observations on either side, and where the two sources disagree, both are listed under What changed.

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Registered in 2003 — the same year as googlevideo.com, wordpress.org and skype.com.