first-circle.com - robtex.com

first-circle.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a8b5🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:4f17🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.79.23Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.168.181🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSvin.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bf5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
A2803:f800:50::6ca2:c1f5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRvin.ns.cloudflare.com
A2a06:98c1:50::ac40:21f5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRvin.ns.cloudflare.com
A108.162.193.245🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
A172.64.33.245🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
A173.245.59.245🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
NSvita.ns.cloudflare.com
A2606:4700:50::adf5:3aee🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvita.ns.cloudflare.com
A2803:f800:50::6ca2:c0ee🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRvita.ns.cloudflare.com
A2a06:98c1:50::ac40:20ee🇺🇸 Cloudflare2a06:98c1:50::/45
PTRvita.ns.cloudflare.com
A108.162.192.238🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvita.ns.cloudflare.com
A172.64.32.238🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvita.ns.cloudflare.com
A173.245.58.238🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvita.ns.cloudflare.com
MXesquina.sakura.ne.jp ⭐
A49.212.207.217🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww3177.sakura.ne.jp
TXTgoogle-site-verification=_2N6YTHcJdYAlkmUrgJxd9vMIafrPbLcyUPzaYSjAvE
TXTv=spf1 a:esquina.sakura.ne.jp ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.79.23, 172.67.168.181
IPv62606:4700:3030::ac43:a8b5, 2606:4700:3037::6815:4f17
SOAvin.ns.cloudflare.comdns@cloudflare.com serial=2398635532

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774538762

Subdomains

mail.first-circle.com

Same first word

first-circle.com

Similar names

circle-first.com

DNS History

15 records (7 active, 8 former)

20162017201820192020202120222023202420252026NSvin.ns.cloudflare.comvita.ns.cloudflare.comns1.toolbox-hs.netns2.toolbox-hs.netns3.toolbox-hs.netMXesquina.sakura.ne.jpmail.first-circle.comA104.21.79.23172.67.168.1812606:4700:3030::ac43:a8b52606:4700:3037::6815:4f17133.18.208.125160.16.53.2252001:e42:102:1502:160:16:53:2252406:8c00:0:3412:133:18:208:125
○NSns1.toolbox-hs.net2015-07-11 → 2018-12-12 · 6 obs
● 2015-07-11 07:18:28
● 2016-05-04 02:45:58
○ 2017-02-01 04:37:02
● 2018-12-12 01:47:42
○ 2026-03-07 21:26:00
○ 2026-03-26 15:30:20
○NSns2.toolbox-hs.net2015-07-11 → 2018-12-12 · 7 obs
● 2015-07-11 07:18:28
○ 2015-11-14 09:25:52
○ 2016-05-04 02:45:58
● 2017-02-01 04:37:02
● 2018-12-12 01:47:42
○ 2026-03-07 21:26:00
○ 2026-03-26 15:30:20
○NSns3.toolbox-hs.net2018-12-12 → 2018-12-12 · 4 obs
○ 2017-02-01 04:37:02
● 2018-12-12 01:47:42
○ 2026-03-07 21:26:00
○ 2026-03-26 15:30:20
●NSvin.ns.cloudflare.com2026-03-07 → 2026-03-26 · 3 obs
○ 2018-12-12 01:47:42
● 2026-03-07 21:26:00
● 2026-03-26 15:30:20
●NSvita.ns.cloudflare.com2026-03-07 → 2026-03-26 · 3 obs
○ 2018-12-12 01:47:42
● 2026-03-07 21:26:00
● 2026-03-26 15:30:20
●MXesquina.sakura.ne.jp2026-03-07 → 2026-03-26 · 3 obs
○ 2018-12-12 01:47:42
● 2026-03-07 21:26:00
● 2026-03-26 15:30:20
○MXmail.first-circle.com2015-07-11 → 2018-12-12 · 4 obs
● 2015-07-11 07:18:28
● 2018-12-12 01:47:42
○ 2026-03-07 21:26:00
○ 2026-03-26 15:30:20
●A104.21.79.232026-03-07 → 2026-03-26 · 3 obs
○ 2018-12-12 01:47:42
● 2026-03-07 21:26:00
● 2026-03-26 15:30:20
○A133.18.208.1252018-12-12 → 2018-12-12 · 4 obs
○ 2017-02-01 04:37:02
● 2018-12-12 01:47:42
○ 2026-03-07 21:26:00
○ 2026-03-26 15:30:20
○A160.16.53.2252015-07-11 → 2017-02-01 · 4 obs
● 2015-07-11 07:18:28
● 2017-02-01 04:37:02
○ 2018-12-12 01:47:42
○ 2026-03-26 15:30:20
●A172.67.168.1812026-03-07 → 2026-03-26 · 3 obs
○ 2018-12-12 01:47:42
● 2026-03-07 21:26:00
● 2026-03-26 15:30:20
○A2001:e42:102:1502:160:16:53:2252015-11-14 → 2017-02-01 · 5 obs
○ 2015-07-11 07:18:28
● 2015-11-14 09:25:52
● 2017-02-01 04:37:02
○ 2018-12-12 01:47:42
○ 2026-03-26 15:30:20
○A2406:8c00:0:3412:133:18:208:1252018-12-12 → 2018-12-12 · 4 obs
○ 2017-02-01 04:37:02
● 2018-12-12 01:47:42
○ 2026-03-07 21:26:00
○ 2026-03-26 15:30:20
●A2606:4700:3030::ac43:a8b52026-03-07 → 2026-03-26 · 3 obs
○ 2018-12-12 01:47:42
● 2026-03-07 21:26:00
● 2026-03-26 15:30:20
●A2606:4700:3037::6815:4f172026-03-07 → 2026-03-26 · 3 obs
○ 2018-12-12 01:47:42
● 2026-03-07 21:26:00
● 2026-03-26 15:30:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
first-circle.comvita.ns.cloudflare.com, vin.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.238

NS records: vita.ns.cloudflare.com, vin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for first-circle.com (unsigned zone)

⏱️ Timing

Total: 155ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.79.23, 172.67.168.181
AAAA22606:4700:3030::ac43:a8b5, 2606:4700:3037::6815:4f17
NS2vin.ns.cloudflare.com, vita.ns.cloudflare.com
MX1esquina.sakura.ne.jp (pri: 10)
TXT2google-site-verification=_2N6YTHcJdYAlkm, v=spf1 a:esquina.sakura.ne.jp ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1vin.ns.cloudflare.com dns.cloudflare.com

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (vita.ns.cloudflare.com, vita.ns.cloudflare.com, vita.ns.cloudflare.com...)

Analysis

Hierarchy

The parent of mail.first-circle.com is first-circle.com.

IP Addresses

first-circle.com maps to four IP numbers: 2606:4700:3030::ac43:a8b5, 2606:4700:3037::6815:4f17, 104.21.79.23 and 172.67.168.181.

other host names include qiyuanbz.com.cn, exd-audio.com, rentmyholidayhouse.com, kadinkablandak.org and redditlite.com; they share IP numbers with first-circle.com.

Name Servers

Two name servers vin.ns.cloudflare.com and vita.ns.cloudflare.com handle the delegation for first-circle.com.

first-circle.com shares the same name server setup as other domains, for instance httpcoder.com, amarinstructor.com, betaglucare.com.au, musicnonstop.io and esquina.jp.

first-circle.com at least partially shares name servers with other domains, for instance top-vps-hosting.ru, dragbox.org, webeye.sk, clubveronique.com and myecomir.com.

These name servers are commonly used alongside melany.ns.cloudflare.com.

Six IP addresses per host:

vin.ns.cloudflare.com points to 2606:4700:58::adf5:3bf5, 2803:f800:50::6ca2:c1f5, 2a06:98c1:50::ac40:21f5, 108.162.193.245, 172.64.33.245 and 173.245.59.245; vita.ns.cloudflare.com points to 2606:4700:50::adf5:3aee, 2803:f800:50::6ca2:c0ee, 2a06:98c1:50::ac40:20ee, 108.162.192.238, 172.64.32.238 and 173.245.58.238

Mail Servers

first-circle.com is handled by a single mail server, esquina.sakura.ne.jp.

first-circle.com shares the same mail server setup as other domains, for instance esquina.jp and esquina.sakura.ne.jp.

The host name esquina.sakura.ne.jp points to IP 49.212.207.217.