firstdoc.cn - robtex.com

firstdoc.cn

DNSSEC⚠️ Not signed
NSjose.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c58🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjose.ns.cloudflare.com
A2803:f800:50::6ca2:c358🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjose.ns.cloudflare.com
A2a06:98c1:50::ac40:2358🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjose.ns.cloudflare.com
A108.162.195.88🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjose.ns.cloudflare.com
A162.159.44.88Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjose.ns.cloudflare.com
A172.64.35.88🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjose.ns.cloudflare.com
NSzelda.ns.cloudflare.com
A2606:4700:50::adf5:3af2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRzelda.ns.cloudflare.com
A2803:f800:50::6ca2:c0f2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRzelda.ns.cloudflare.com
A2a06:98c1:50::ac40:20f2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRzelda.ns.cloudflare.com
A108.162.192.242🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRzelda.ns.cloudflare.com
A172.64.32.242🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRzelda.ns.cloudflare.com
A173.245.58.242🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRzelda.ns.cloudflare.com
MXroute3.mx.cloudflare.net ⭐
A2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
MXroute1.mx.cloudflare.net(71)
A2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
MXroute2.mx.cloudflare.net(89)
A2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
SOAjose.ns.cloudflare.comdns@cloudflare.com serial=2396102312

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=2034585106

Same first word

firstdoc.cn
firstdoc.ru

Similar names

cidrsoft.com
cdfortis.com

DNS History

11 records (5 active, 6 former)

20162017201820192020202120222023202420252026NSjose.ns.cloudflare.comzelda.ns.cloudflare.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netMXroute1.mx.cloudflare.netroute2.mx.cloudflare.netroute3.mx.cloudflare.netmail.skrimple.comA103.51.144.81123.254.111.19065.19.157.235
○NSf1g1ns1.dnspod.net2015-05-24 → 2015-10-13 · 4 obs
● 2015-05-24 19:10:28
● 2015-10-13 09:24:42
○ 2020-01-11 03:48:10
○ 2026-03-25 09:49:38
○NSf1g1ns2.dnspod.net2015-05-24 → 2015-10-13 · 4 obs
● 2015-05-24 19:10:28
● 2015-10-13 09:24:42
○ 2020-01-11 03:48:10
○ 2026-03-25 09:49:38
●NSjose.ns.cloudflare.com2026-03-15 → 2026-03-25 · 3 obs
○ 2020-01-11 03:48:10
● 2026-03-15 01:08:20
● 2026-03-25 09:49:38
●NSzelda.ns.cloudflare.com2026-03-15 → 2026-03-25 · 3 obs
○ 2020-01-11 03:48:10
● 2026-03-15 01:08:20
● 2026-03-25 09:49:38
○MXmail.skrimple.com2015-12-17 → 2016-07-06 · 4 obs
● 2015-12-17 08:53:48
● 2016-07-06 14:43:14
○ 2020-01-11 03:48:10
○ 2026-03-25 09:49:38
●MXroute1.mx.cloudflare.net2026-03-15 → 2026-03-25 · 3 obs
○ 2020-01-11 03:48:10
● 2026-03-15 01:08:20
● 2026-03-25 09:49:38
●MXroute2.mx.cloudflare.net2026-03-15 → 2026-03-25 · 3 obs
○ 2020-01-11 03:48:10
● 2026-03-15 01:08:20
● 2026-03-25 09:49:38
●MXroute3.mx.cloudflare.net2026-03-15 → 2026-03-25 · 3 obs
○ 2020-01-11 03:48:10
● 2026-03-15 01:08:20
● 2026-03-25 09:49:38
○A103.51.144.812016-07-06 → 2016-07-06 · 4 obs
○ 2015-12-17 08:53:48
● 2016-07-06 14:43:14
○ 2020-01-11 03:48:10
○ 2026-03-25 09:49:38
○A123.254.111.1902015-05-24 → 2015-10-13 · 4 obs
● 2015-05-24 19:10:28
● 2015-10-13 09:24:42
○ 2015-12-17 08:53:48
○ 2026-03-25 09:49:38
○A65.19.157.2352015-12-17 → 2015-12-17 · 4 obs
○ 2015-10-13 09:24:42
● 2015-12-17 08:53:48
○ 2016-07-06 14:43:14
○ 2026-03-25 09:49:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
firstdoc.cnjose.ns.cloudflare.com, zelda.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.242

NS records: jose.ns.cloudflare.com, zelda.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstdoc.cn (unsigned zone)

⏱️ Timing

Total: 737ms | Queries: -

📄 Records

TypeCountSample Data
NS2jose.ns.cloudflare.com, zelda.ns.cloudflare.com
MX3route3.mx.cloudflare.net (pri: 42), route1.mx.cloudflare.net (pri: 71)...
TXT1v=spf1 include:_spf.mx.cloudflare.net ~a
SOA1jose.ns.cloudflare.com dns.cloudflare.co

Analysis

Name Servers

firstdoc.cn is delegated to two name servers: jose.ns.cloudflare.com and zelda.ns.cloudflare.com.

firstdoc.cn uses the same name server setup as other domains such as answerquick.net, vsky.net, yanovsky.org, moviestream.dk and mucca.dk.

firstdoc.cn shares name servers with other domains at least partially, for example daviddekel.com, kcrisingmetrics.org, littlemisshipster.com, hometownargus.com and idivide.uk.

These name servers are commonly used together with donna.ns.cloudflare.com, arvind.ns.cloudflare.com, dana.ns.cloudflare.com and fred.ns.cloudflare.com.

Host names with six IP numbers: host name jose.ns.cloudflare.com points to: 2606:4700:58::a29f:2c58, 2803:f800:50::6ca2:c358, 2a06:98c1:50::ac40:2358, 108.162.195.88, 162.159.44.88 and 172.64.35.88; host name zelda.ns.cloudflare.com points to: 2606:4700:50::adf5:3af2, 2803:f800:50::6ca2:c0f2, 2a06:98c1:50::ac40:20f2, 108.162.192.242, 172.64.32.242 and 173.245.58.242.

Mail Servers

firstdoc.cn is served by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

firstdoc.cn shares mail servers with other domains at least partially; for instance dmediaweb.it, hornica.com, pharmacienguyen-charenton-le-pont.fr, compumedic.com and webdesignhot.com.

Host names with six IP numbers:

route1.mx.cloudflare.net points to 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13.

route2.mx.cloudflare.net points to 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19.

route3.mx.cloudflare.net points to 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25.