`firstclass.sg`

DNSSEC	⚠️ Not signed
A	2a02:4780:4a:13a5:12c3:3225:b4e1:7de6^{🇨🇾 IIHOS0012a02:4780:4a::/48 HOSTINGER US}
A	2a02:4780:4c:362a:fb5b:4d0c:3cdf:d1a5^{🇨🇾 IIHOS0012a02:4780:4c::/48 HOSTINGER US}
A	88.223.87.72^{🇱🇹 IIHOS00188.223.80.0/21 HOSTINGER US}
A	147.79.79.196^{🇺🇸 IIHOS001147.79.72.0/21 HOSTINGER US}
NS	`ns1.dns-parking.com` ⭐
		A	2400:cb00:2049:1::a29f:18c9^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.24.201^{Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.dns-parking.com`
NS	`ns2.dns-parking.com`
		A	2400:cb00:2049:1::a29f:192a^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.25.42^{Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.dns-parking.com`
MX	`mx1.hostinger.com` ⭐
		A	2606:4700:90:0:c1f8:f874:2386:b61f^{🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.65.182.103^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-65-182-103.defastlink.net`
MX	`mx2.hostinger.com`⁽¹⁰⁾
		A	2606:4700:90:0:c1f8:f874:2386:b61f^{🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.65.182.103^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-65-182-103.defastlink.net`
TXT	`v=spf1 include:_spf.mail.hostinger.com ~all`
SOA	`ns1.dns-parking.com`dns@hostinger.com 2026-03-12 #1

`sg`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ds.sgnic.sg` ⭐
	NS	`dsany2.sgnic.sg`
	NS	`dsany3.sgnic.sg`
	NS	`dsany4.sgnic.sg`
	NS	`ns4.apnic.net` ⚠️ Not in parent delegation 🔒
	NS	`pch.sgzones.sg` 🔒
	SOA	`ds.sgnic.sg`dna@sgnic.sg serial=2603071100

Previously MX for

firstclass.sg

Subdomains

www.firstclass.sg

Same first word

firstclass.hu

firstclass.cn

firstclass.co.th

firstclass.fi

firstclass.com.sa

firstclass.solutions

firstclass.sa

firstclass.ru

firstclass.com.br

firstclass.taxi

firstclass.me

firstclass.cc

firstclass.edu.hk

firstclass.fr

firstclass.sg

firstclass.ne.jp

firstclass.capital

firstclass.com.mx

firstclass.se

firstclass.rentals

firstclass.com.pl

firstclass.tel

firstclass.lt

firstclass.dk

firstclass.is

firstclass.co.kr

firstclass.expert

firstclass.org

firstclass.at

firstclass.com.tr

firstclass.fo

firstclass.info

firstclass.it

firstclass.flights

firstclass.ws

firstclass.eu

firstclass.nl

firstclass.domains

firstclass.com.au

firstclass.mx

firstclass.sc

firstclass.com.sg

firstclass.no

firstclass.pl

firstclass.com

firstclass.com.cn

firstclass.as

firstclass.estate

firstclass.de

firstclass.agency

firstclass.net

firstclass.cz

firstclass.sk

firstclass.international

firstclass.education

firstclass.sh.cn

firstclass.com.hk

firstclass.cl

firstclass.ch

Similar names

firtsclass.com

classfirst.in

calstrsifs.com

classfirst.com

fristclass.com

DNS History

34 records (8 active, 26 former)

○NSdns1.flexihostings.net2015-06-21 → 2016-01-24 · 4 obs

● 2015-06-21 19:11:24
● 2016-01-24 02:20:14
○ 2016-06-26 09:56:26
○ 2026-03-12 21:30:22

○NSdns2.flexihostings.net2015-06-21 → 2016-01-24 · 4 obs

● 2015-06-21 19:11:24
● 2016-01-24 02:20:14
○ 2016-06-26 09:56:26
○ 2026-03-12 21:30:22

●NSns1.dns-parking.com2026-02-17 → 2026-03-12 · 3 obs

○ 2016-06-26 09:56:26
● 2026-02-17 18:58:32
● 2026-03-12 21:30:22

○NSns1.vodien.com2016-06-26 → 2016-06-26 · 4 obs

○ 2016-01-24 02:20:14
● 2016-06-26 09:56:26
○ 2026-02-17 18:58:32
○ 2026-03-12 21:30:22

●NSns2.dns-parking.com2026-02-17 → 2026-03-12 · 3 obs

○ 2016-06-26 09:56:26
● 2026-02-17 18:58:32
● 2026-03-12 21:30:22

○NSns2.vodien.com2016-06-26 → 2016-06-26 · 4 obs

○ 2016-01-24 02:20:14
● 2016-06-26 09:56:26
○ 2026-02-17 18:58:32
○ 2026-03-12 21:30:22

○NSns3.vodien.com2016-06-26 → 2016-06-26 · 4 obs

○ 2016-01-24 02:20:14
● 2016-06-26 09:56:26
○ 2026-02-17 18:58:32
○ 2026-03-12 21:30:22

○MXfirstclass.sg2015-06-21 → 2016-01-24 · 4 obs

● 2015-06-21 19:11:24
● 2016-01-24 02:20:14
○ 2016-06-26 09:56:26
○ 2026-03-12 21:30:22

○MXmail.firstclass.sg2016-06-26 → 2016-06-26 · 4 obs

○ 2016-01-24 02:20:14
● 2016-06-26 09:56:26
○ 2026-02-17 18:58:32
○ 2026-03-12 21:30:22

●MXmx1.hostinger.com2026-02-17 → 2026-03-12 · 3 obs

○ 2016-06-26 09:56:26
● 2026-02-17 18:58:32
● 2026-03-12 21:30:22

●MXmx2.hostinger.com2026-02-17 → 2026-03-12 · 3 obs

○ 2016-06-26 09:56:26
● 2026-02-17 18:58:32
● 2026-03-12 21:30:22

○A1.1.1.12016-06-26 → 2016-06-26 · 4 obs

○ 2016-01-24 02:20:14
● 2016-06-26 09:56:26
○ 2026-02-17 18:58:32
○ 2026-03-12 21:30:22

○A145.223.124.1092026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-17 18:58:32
● 2026-02-24 23:20:34
○ 2026-02-28 23:31:28
○ 2026-03-12 21:30:22

○A145.223.124.1122026-02-28 → 2026-02-28 · 4 obs

○ 2026-02-24 23:20:34
● 2026-02-28 23:31:28
○ 2026-03-12 21:30:20
○ 2026-03-12 21:30:22

○A145.223.124.1332026-02-17 → 2026-02-17 · 4 obs

○ 2016-06-26 09:56:26
● 2026-02-17 18:58:32
○ 2026-02-24 23:20:34
○ 2026-03-12 21:30:22

○A147.79.79.1692026-02-17 → 2026-02-17 · 4 obs

○ 2016-06-26 09:56:26
● 2026-02-17 18:58:32
○ 2026-02-24 23:20:34
○ 2026-03-12 21:30:22

●A147.79.79.1962026-03-12 → 2026-03-12 · 3 obs

○ 2026-02-28 23:31:28
● 2026-03-12 21:30:20
● 2026-03-12 21:30:22

○A147.79.79.692026-02-17 → 2026-03-12 · 2 obs

○ 2026-02-17 18:58:32
○ 2026-03-12 21:30:22

○A158.69.116.1012015-11-02 → 2016-01-24 · 5 obs

○ 2015-06-21 19:11:24
● 2015-11-02 22:41:02
● 2016-01-24 02:20:14
○ 2016-06-26 09:56:26
○ 2026-03-12 21:30:22

○A208.43.99.1972015-06-21 → 2015-06-21 · 3 obs

● 2015-06-21 19:11:24
○ 2015-11-02 22:41:02
○ 2026-03-12 21:30:22

●A2a02:4780:4a:13a5:12c3:3225:b4e1:7de62026-03-12 → 2026-03-12 · 3 obs

○ 2026-02-28 23:31:28
● 2026-03-12 21:30:20
● 2026-03-12 21:30:22

○A2a02:4780:4b:1417:d64a:920f:5626:77b02026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-17 18:58:32
● 2026-02-24 23:20:34
○ 2026-02-28 23:31:28
○ 2026-03-12 21:30:22

○A2a02:4780:4b:5355:3828:6231:5c13:62f52026-02-17 → 2026-02-17 · 4 obs

○ 2016-06-26 09:56:26
● 2026-02-17 18:58:32
○ 2026-02-24 23:20:34
○ 2026-03-12 21:30:22

○A2a02:4780:4b:bd41:63c:5532:73cf:91c22026-02-28 → 2026-02-28 · 4 obs

○ 2026-02-24 23:20:34
● 2026-02-28 23:31:28
○ 2026-03-12 21:30:20
○ 2026-03-12 21:30:22

●A2a02:4780:4c:362a:fb5b:4d0c:3cdf:d1a52026-03-12 → 2026-03-12 · 3 obs

○ 2026-02-28 23:31:28
● 2026-03-12 21:30:20
● 2026-03-12 21:30:22

○A2a02:4780:4c:37a0:59b5:750a:d415:22282026-02-17 → 2026-03-12 · 2 obs

○ 2026-02-17 18:58:32
○ 2026-03-12 21:30:22

○A2a02:4780:4c:775d:491a:a9e:acf8:4e522026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-17 18:58:32
● 2026-02-24 23:20:34
○ 2026-02-28 23:31:28
○ 2026-03-12 21:30:22

○A2a02:4780:4c:f08e:4c00:1c69:48b2:c6542026-02-28 → 2026-02-28 · 4 obs

○ 2026-02-24 23:20:34
● 2026-02-28 23:31:28
○ 2026-03-12 21:30:20
○ 2026-03-12 21:30:22

○A2a02:4780:4d:5427:9fe9:9189:a062:364a2026-02-17 → 2026-02-17 · 4 obs

○ 2016-06-26 09:56:26
● 2026-02-17 18:58:32
○ 2026-02-24 23:20:34
○ 2026-03-12 21:30:22

○A2a02:4780:4d:d09d:f400:5af8:a8a3:c0a42026-02-17 → 2026-03-12 · 2 obs

○ 2026-02-17 18:58:32
○ 2026-03-12 21:30:22

○A88.223.87.02026-02-17 → 2026-03-12 · 2 obs

○ 2026-02-17 18:58:32
○ 2026-03-12 21:30:22

○A88.223.87.1062026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-17 18:58:32
● 2026-02-24 23:20:34
○ 2026-02-28 23:31:28
○ 2026-03-12 21:30:22

○A88.223.87.482026-02-28 → 2026-02-28 · 4 obs

○ 2026-02-24 23:20:34
● 2026-02-28 23:31:28
○ 2026-03-12 21:30:20
○ 2026-03-12 21:30:22

●A88.223.87.722026-03-12 → 2026-03-12 · 3 obs

○ 2026-02-28 23:31:28
● 2026-03-12 21:30:20
● 2026-03-12 21:30:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
sg	pch.sgzones.sg, dsany3.sgnic.sg, dsany4.sgnic.sg, ns4.apnic.net...	10 records
firstclass.sg	ns1.dns-parking.com, ns2.dns-parking.com	-

✅ Authoritative Response

Server: 162.159.25.42

NS records: ns1.dns-parking.com, ns2.dns-parking.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstclass.sg (unsigned zone)

⏱️ Timing

Total: 942ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`88.223.87.72, 147.79.79.196`
AAAA	2	`2a02:4780:4c:cfd9:dd9:c359:690d:75e8, 2a02:4780:4b:1931:68f5:1b09:cecd:db5e`
NS	2	`ns2.dns-parking.com, ns1.dns-parking.com`
MX	2	`mx2.hostinger.com (pri: 10), mx1.hostinger.com (pri: 5)`
TXT	1	`v=spf1 include:_spf.mail.hostinger.com ~`
SOA	1	`ns1.dns-parking.com dns.hostinger.com`

📌 Glue Records Collected

Total: 10

In-bailiwick: 8 (dsany4.sgnic.sg, dsany3.sgnic.sg, dsany2.sgnic.sg...)

Out-of-bailiwick: 2 (ns4.apnic.net, ns4.apnic.net)

Analysis

Hierarchy

The parent of www.firstclass.sg is firstclass.sg.

IP Addresses

firstclass.sg maps to four IP numbers: 2a02:4780:4a:13a5:12c3:3225:b4e1:7de6, 2a02:4780:4c:362a:fb5b:4d0c:3cdf:d1a5, 88.223.87.72 and 147.79.79.196.

Other host names such as northcarolinagenealogy.org, azad4x4.com.cdn.hstgr.net, koptev.org, imoa.ph and artofdebating.com share IPs with firstclass.sg.

Name Servers

Two name servers ns1.dns-parking.com and ns2.dns-parking.com handle the delegation for firstclass.sg.

firstclass.sg shares the same name server setup as other domains, for example amarillotrading.com, tmamm.com, kokobro.com, la-mer.com.au and tlgdev.com.

firstclass.sg shares name servers with other domains at least partially, for instance hidelane.com.

Host names with two IP numbers:

ns1.dns-parking.com points to 2400:cb00:2049:1::a29f:18c9 and 162.159.24.201.

ns2.dns-parking.com points to 2400:cb00:2049:1::a29f:192a and 162.159.25.42.

Mail Servers

Two mail servers handle firstclass.sg: mx1.hostinger.com and mx2.hostinger.com.

firstclass.sg shares the same mail server setup as other domains, including janevee.com, drvaper.com, familie-karsch.de, a2zcouponcodes.com and c3servicegroup.com.

firstclass.sg shares at least partially some mail servers with other domains, for instance sioni.net, mondiison.16mb.com, exera.mu, bensfernandez.com and vdigipro.com.

Names with two IPs:

mx1.hostinger.com points to: 2606:4700:90:0:c1f8:f874:2386:b61f and 172.65.182.103.

mx2.hostinger.com points to: 2606:4700:90:0:c1f8:f874:2386:b61f and 172.65.182.103.

Names pointing to 2606:4700:90:0:c1f8:f874:2386:b61f: mx1.hostinger.com and mx2.hostinger.com.

Names pointing to 172.65.182.103: mx1.hostinger.com and mx2.hostinger.com.

firstclass.sg - robtex.com

firstclass.sg

sg

Previously MX for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`firstclass.sg`

`sg`