Domain Intelligence Report

166.com

Compare

IPv6

Measured 2026-11-01 05:14 UTC · aaaa.bot
D

The website has no IPv6.

166.com has no IPv6 address published.

  • ✗ 166.com: no IPv6 address
  • ✗ www.166.com: no IPv6 address
  • ✗ Mail: 0 of 0 servers have IPv6
  • ✗ Nameservers: none have IPv6
Details: published addresses and what answered
166.comPublishedno IPv6 address publishedAnswers when we connectnothing to test
www.166.comPublishedno IPv6 address publishedAnswers when we connectnothing to test
MailPublishedNo MX records, so mail goes to the domain's own address (implicit MX). It has no AAAA record.Answers when we connectsee detail
NameserversPublishedns5.166.comns2.166.comns6.166.comns8.166.comns4.166.comns1.166.comns3.166.comAnswers when we connect✗ no IPv6✗ no IPv6✗ no IPv6✗ no IPv6✗ no IPv6✗ no IPv6✗ no IPv6
First measured 2026-11-01: no IPv6 publishedIf this changes, the date will appear here.

Lineage

Our records: Jul 5, 2011 → Nov 1, 2026

Oldest registry snapshot we hold: 2011 · 6 renewals on record · DNS at 166.com · 1 nameserver change seen. These dates are when our records begin, not when the domain was registered.

Registrar
209 snapshots
MarkMonitor, Inc.MarkMonitor Information Technology (Shanghai) Co., Ltd.Moved to MarkMonitor, Incbetween Sep 14, 2011 and Oct 14, 2011From NETWORK SOLUTIONS, LLC to MarkMonitor, Inc, with 5 years added. Expiry moved from 2014-03-10 to 2019-03-10.Renewed +2 yearsbetween Jan 3, 2019 and Feb 16, 2019Expiry moved from 2019-03-09 to 2021-03-09, at MarkMonitor, Inc.Renewed +2 yearsbetween Jan 27, 2021 and Feb 17, 2021Expiry moved from 2021-03-09 to 2023-03-09, at MarkMonitor, Inc.Renewed +2 yearsbetween Jan 25, 2023 and Feb 28, 2023Expiry moved from 2023-03-09 to 2025-03-10, at MarkMonitor, Inc.Moved to MarkMonitor Information Technology (Shanghai) Co., Ltdbetween Sep 14, 2023 and Sep 20, 2023From MarkMonitor, Inc to MarkMonitor Information Technology (Shanghai) Co., Ltd, with 1 year added. Expiry moved from 2025-03-10 to 2026-03-10.Renewed +2 yearsbetween Jan 13, 2026 and Feb 13, 2026Expiry moved from 2026-03-10 to 2028-03-10, at MarkMonitor Information Technology (Shanghai) Co., Ltd.
Nameservers
registry zone files
seen in WHOIS
166.comDNS moved to 166.combetween Jun 22, 2017 and Aug 21, 2017ns1.nease.net, ns2.nease.net, ns3.nease.net, ns4.nease.net → ns1.166.com, ns2.166.com, ns3.166.com, ns4.166.com, ns5.166.com, ns6.166.com, ns8.166.com. Old set last seen in WHOIS on 2017-06-22; new set first seen in WHOIS on 2017-08-21.
IPv6
aaaa.bot check
201520192026
What changed
  1. IPv6 first measured: no IPv6 published on Nov 1, 2026166.com: no IPv6 published. Grade D. Measured by aaaa.bot, 2026-11-01 05:14 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
  2. Renewed +2 years between Jan 13, 2026 and Feb 13, 2026Expiry moved from 2026-03-10 to 2028-03-10, at MarkMonitor Information Technology (Shanghai) Co., Ltd.
  3. Moved to MarkMonitor Information Technology (Shanghai) Co., Ltd between Sep 14, 2023 and Sep 20, 2023From MarkMonitor, Inc to MarkMonitor Information Technology (Shanghai) Co., Ltd, with 1 year added. Expiry moved from 2025-03-10 to 2026-03-10.
  4. Renewed +2 years between Jan 25, 2023 and Feb 28, 2023Expiry moved from 2023-03-09 to 2025-03-10, at MarkMonitor, Inc.
  5. Renewed +2 years between Jan 27, 2021 and Feb 17, 2021Expiry moved from 2021-03-09 to 2023-03-09, at MarkMonitor, Inc.
  6. Renewed +2 years between Jan 3, 2019 and Feb 16, 2019Expiry moved from 2019-03-09 to 2021-03-09, at MarkMonitor, Inc.
  7. DNS moved to 166.com between Jun 22, 2017 and Aug 21, 2017ns1.nease.net, ns2.nease.net, ns3.nease.net, ns4.nease.net → ns1.166.com, ns2.166.com, ns3.166.com, ns4.166.com, ns5.166.com, ns6.166.com, ns8.166.com. Old set last seen in WHOIS on 2017-06-22; new set first seen in WHOIS on 2017-08-21.
  8. Moved to MarkMonitor, Inc between Sep 14, 2011 and Oct 14, 2011From NETWORK SOLUTIONS, LLC to MarkMonitor, Inc, with 5 years added. Expiry moved from 2014-03-10 to 2019-03-10.

Registrar and renewals: 209 WHOIS/RDAP snapshots, 2011-07-05 to 2026-05-31 (ledger built 2026-09-27). Every renewal

Nameservers, registry zone files: 105 .com zone-file snapshots held, 2013-10-18 to 2026-10-31.

Nameservers, WHOIS snapshots: 210 WHOIS/RDAP snapshots that listed nameservers, 2011-07-05 to 2026-06-28 (who.is archive). A change is placed between the nearest observations on either side, from whichever source made them; where the two sources disagree, both are shown.

Hatched = the span we hold records for. A coloured bar runs only between observations that named the same registrar or operator; nothing is assumed in between.

Each mark sits at the first observation of the new state; its bracket runs back to the last observation of the old one.

Gathering intelligence... (0/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
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

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