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Domain Intelligence Report

chinacostco.com

Full ownership history report — $29 at AboutUsCompare
Gathering intelligence... (0/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
Safe
Checking…
no attacks or spoofing
Up
Checking…
reachable and responding
Right
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it is what it is
Ready
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Outline
Gathering data — check results will appear here as they complete.
DNS Records
WHOIS
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/TLS
Security
Email Auth
DNSSEC
Tech Stack
HTTP / Headers
Threats
Zone census
Subdomains
Web Archive
Deliverability

IPv6

Not checked yet. aaaa.bot has no recent IPv6 result for chinacostco.com. Run the check on aaaa.bot →

Lineage

Our records: Jan 21, 2010 → Nov 2, 2026

Oldest registry snapshot we hold: 2010 · 0 renewals on record · DNS at Cloudflare · 2 nameserver changes seen. These dates are when our records begin, not when the domain was registered.

DNS provider

  • 4cun.com
    Oct 2013 – Apr 2018
  • 4cun.com + 51dns.top
    Jan 2015 – Apr 2016
  • Nameservers not resolved
    Aug 2026
  • CloudflareNOW
    Seen from Nov 2026
What changed
  1. Missing from the zone file, then back between Aug 24, 2026 and Nov 1, 2026Listed on 2026-08-24, missing from the next held snapshot, listed again on 2026-11-01. A registry hold also removes a name, so this is not proof it was dropped.
  2. DNS moved to 4cun.com between Apr 1, 2016 and Apr 3, 2018dns7.4cun.com, dns8.51dns.top → ns1.exp.4cun.com, ns2.exp.4cun.com.
  3. DNS moved to 4cun.com + 51dns.top between Jun 1, 2014 and Jan 24, 2015dns7.4cun.com, dns8.4cun.com → dns7.4cun.com, dns8.51dns.top.

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: 2 WHOIS/RDAP snapshots, 2010-01-21 to 2010-02-06 (ledger built 2026-09-27). Every renewal

DNS provider, registry zone files: 107 .com zone-file snapshots held, 2013-10-18 to 2026-11-02.

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TLD.com domainsIPv6Does chinacostco.com have IPv6?