bestac.cn - robtex.com

bestac.cn

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:faa🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:a350🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.15.170Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.163.80🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSlila.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3aba🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlila.ns.cloudflare.com
A2803:f800:50::6ca2:c0ba🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlila.ns.cloudflare.com
A2a06:98c1:50::ac40:20ba🇺🇸 Cloudflare2a06:98c1:50::/45
PTRlila.ns.cloudflare.com
A108.162.192.186🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlila.ns.cloudflare.com
A172.64.32.186🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlila.ns.cloudflare.com
A173.245.58.186🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlila.ns.cloudflare.com
NSsullivan.ns.cloudflare.com
A2606:4700:58::a29f:2ca1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsullivan.ns.cloudflare.com
A2803:f800:50::6ca2:c3a1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsullivan.ns.cloudflare.com
A2a06:98c1:50::ac40:23a1🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsullivan.ns.cloudflare.com
A108.162.195.161🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsullivan.ns.cloudflare.com
A162.159.44.161Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsullivan.ns.cloudflare.com
A172.64.35.161🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsullivan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.15.170, 172.67.163.80
IPv6 hints2606:4700:3031::6815:faa, 2606:4700:3036::ac43:a350
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=252, name=cloudflare-ech.com
SOAlila.ns.cloudflare.comdns@cloudflare.com serial=2409944516

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2035098645

Same first word

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DNS History

25 records (6 active, 19 former)

20162017201820192020202120222023202420252026NSlila.ns.cloudflare.comsullivan.ns.cloudflare.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netlaura.ns.cloudflare.commike.ns.cloudflare.comMXmail.skrimple.comA104.21.15.170172.67.163.802606:4700:3031::6815:faa2606:4700:3036::ac43:a350103.51.144.81104.21.18.228123.254.111.190172.67.183.221184.105.178.89188.114.96.0188.114.97.02606:4700:3031::ac43:b7dd2606:4700:3034::6815:12e42a06:98c1:3120::2a06:98c1:3120::42a06:98c1:3121::2a06:98c1:3121::465.19.157.235
○NSf1g1ns1.dnspod.net2015-06-07 → 2015-10-30 · 4 obs
● 2015-06-07 02:38:50
● 2015-10-30 14:29:08
○ 2026-07-01 14:50:08
○ 2026-07-28 00:50:42
○NSf1g1ns2.dnspod.net2015-06-07 → 2015-10-30 · 4 obs
● 2015-06-07 02:38:50
● 2015-10-30 14:29:08
○ 2026-07-01 14:50:08
○ 2026-07-28 00:50:42
○NSlaura.ns.cloudflare.com2026-07-01 → 2026-07-01 · 4 obs
○ 2015-10-30 14:29:08
● 2026-07-01 14:50:08
○ 2026-07-28 00:50:40
○ 2026-07-28 00:50:42
●NSlila.ns.cloudflare.com2026-07-28 → 2026-07-28 · 3 obs
○ 2026-07-01 14:50:08
● 2026-07-28 00:50:40
● 2026-07-28 00:50:42
○NSmike.ns.cloudflare.com2026-07-01 → 2026-07-01 · 4 obs
○ 2015-10-30 14:29:08
● 2026-07-01 14:50:08
○ 2026-07-28 00:50:40
○ 2026-07-28 00:50:42
●NSsullivan.ns.cloudflare.com2026-07-28 → 2026-07-28 · 3 obs
○ 2026-07-01 14:50:08
● 2026-07-28 00:50:40
● 2026-07-28 00:50:42
○MXmail.skrimple.com2016-02-23 → 2017-03-31 · 4 obs
● 2016-02-23 02:51:06
● 2017-03-31 11:29:32
○ 2026-07-01 14:50:08
○ 2026-07-28 00:50:42
○A103.51.144.812017-03-31 → 2017-03-31 · 4 obs
○ 2016-05-29 17:40:48
● 2017-03-31 11:29:32
○ 2026-07-01 14:50:08
○ 2026-07-28 00:50:42
●A104.21.15.1702026-07-28 → 2026-07-28 · 3 obs
○ 2026-07-15 14:18:16
● 2026-07-28 00:50:40
● 2026-07-28 00:50:42
○A104.21.18.2282026-07-13 → 2026-07-13 · 4 obs
○ 2026-07-01 14:50:08
● 2026-07-13 00:18:32
○ 2026-07-15 14:18:16
○ 2026-07-28 00:50:42
○A123.254.111.1902015-06-07 → 2015-10-30 · 4 obs
● 2015-06-07 02:38:50
● 2015-10-30 14:29:08
○ 2016-02-23 02:51:06
○ 2026-07-28 00:50:42
●A172.67.163.802026-07-28 → 2026-07-28 · 3 obs
○ 2026-07-15 14:18:16
● 2026-07-28 00:50:40
● 2026-07-28 00:50:42
○A172.67.183.2212026-07-13 → 2026-07-13 · 4 obs
○ 2026-07-01 14:50:08
● 2026-07-13 00:18:32
○ 2026-07-15 14:18:16
○ 2026-07-28 00:50:42
○A184.105.178.892016-05-29 → 2016-05-29 · 4 obs
○ 2016-02-23 02:51:06
● 2016-05-29 17:40:48
○ 2017-03-31 11:29:32
○ 2026-07-28 00:50:42
○A188.114.96.02026-07-01 → 2026-07-15 · 6 obs
○ 2017-03-31 11:29:32
● 2026-07-01 14:50:08
○ 2026-07-13 00:18:32
● 2026-07-15 14:18:16
○ 2026-07-28 00:50:40
○ 2026-07-28 00:50:42
○A188.114.97.02026-07-01 → 2026-07-15 · 6 obs
○ 2017-03-31 11:29:32
● 2026-07-01 14:50:08
○ 2026-07-13 00:18:32
● 2026-07-15 14:18:16
○ 2026-07-28 00:50:40
○ 2026-07-28 00:50:42
●A2606:4700:3031::6815:faa2026-07-28 → 2026-07-28 · 3 obs
○ 2026-07-15 14:18:16
● 2026-07-28 00:50:40
● 2026-07-28 00:50:42
○A2606:4700:3031::ac43:b7dd2026-07-13 → 2026-07-13 · 4 obs
○ 2026-07-01 14:50:08
● 2026-07-13 00:18:32
○ 2026-07-15 14:18:16
○ 2026-07-28 00:50:42
○A2606:4700:3034::6815:12e42026-07-13 → 2026-07-13 · 4 obs
○ 2026-07-01 14:50:08
● 2026-07-13 00:18:32
○ 2026-07-15 14:18:16
○ 2026-07-28 00:50:42
●A2606:4700:3036::ac43:a3502026-07-28 → 2026-07-28 · 3 obs
○ 2026-07-15 14:18:16
● 2026-07-28 00:50:40
● 2026-07-28 00:50:42
○A2a06:98c1:3120::2026-07-01 → 2026-07-01 · 4 obs
○ 2017-03-31 11:29:32
● 2026-07-01 14:50:08
○ 2026-07-13 00:18:32
○ 2026-07-28 00:50:42
○A2a06:98c1:3120::42026-07-15 → 2026-07-15 · 4 obs
○ 2026-07-13 00:18:32
● 2026-07-15 14:18:16
○ 2026-07-28 00:50:40
○ 2026-07-28 00:50:42
○A2a06:98c1:3121::2026-07-01 → 2026-07-01 · 4 obs
○ 2017-03-31 11:29:32
● 2026-07-01 14:50:08
○ 2026-07-13 00:18:32
○ 2026-07-28 00:50:42
○A2a06:98c1:3121::42026-07-15 → 2026-07-15 · 4 obs
○ 2026-07-13 00:18:32
● 2026-07-15 14:18:16
○ 2026-07-28 00:50:40
○ 2026-07-28 00:50:42
○A65.19.157.2352016-02-23 → 2016-02-23 · 4 obs
○ 2015-10-30 14:29:08
● 2016-02-23 02:51:06
○ 2016-05-29 17:40:48
○ 2026-07-28 00:50:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnd.dns.cn, b.dns.cn, a.dns.cn, c.dns.cn...-
bestac.cnlila.ns.cloudflare.com, sullivan.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.186

NS records: lila.ns.cloudflare.com, sullivan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bestac.cn (unsigned zone)

⏱️ Timing

Total: 2702ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.15.170, 172.67.163.80
AAAA22606:4700:3036::ac43:a350, 2606:4700:3031::6815:faa
NS2lila.ns.cloudflare.com, sullivan.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1lila.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

bestac.cn directs to four IP numbers, which are 104.21.15.170, 172.67.163.80, 2606:4700:3031::6815:faa and 2606:4700:3036::ac43:a350.

Among the host names that share IP numbers with bestac.cn are cosn.net, pro85.sciencepav.ru, koto.org and two others.

Name Servers

bestac.cn is served by two delegated name servers, lila.ns.cloudflare.com and sullivan.ns.cloudflare.com.

bestac.cn has the same name server delegation as a number of other domains, such as tongxinwang.cn, tjljz.com, hfxyt.com and two more.

The name servers of bestac.cn overlap at least partially with those of other domains — among them gdzskj.com, ayida.net, mature-(0x706f726e).pro and two more.

These name servers commonly co-occur with the name servers dahlia.ns.cloudflare.com, arely.ns.cloudflare.com, beth.ns.cloudflare.com and alexis.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

lila.ns.cloudflare.com carries IP addresses 108.162.192.186, 172.64.32.186 and 173.245.58.186, with 3 other addresses beyond those.

sullivan.ns.cloudflare.com carries IP addresses 108.162.195.161, 162.159.44.161 and 172.64.35.161, with 3 other addresses beyond those.