cslets.net - dns.ninja

`cslets.net`

DNSSEC	⚠️ Not signed
A	49.212.235.31^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www3321.sakura.ne.jp`
NS	`01.dnsv.jp` ⭐
		A	2400:8500:3300::53^{🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.}
			PTR	`01.dnsv.jp`
		A	157.7.32.53^{🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.}
			PTR	`01.dnsv.jp`
NS	`02.dnsv.jp`
		A	157.7.33.53^{🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.}
			PTR	`02.dnsv.jp`
NS	`03.dnsv.jp`
		A	2400:8500:3000::53^{🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.}
			PTR	`03.dnsv.jp`
		A	157.7.34.53^{🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.}
			PTR	`03.dnsv.jp`
NS	`04.dnsv.jp`
		A	2400:8500:3fff::53^{🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.}
			PTR	`04.dnsv.jp`
		A	157.7.35.53^{🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.}
			PTR	`04.dnsv.jp`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	2607:f8b0:4004:c1d::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f27.1e100.net`
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	142.251.167.26^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f26.1e100.net`
		A	142.251.167.27^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f27.1e100.net`
		A	172.253.139.26^{🇺🇸 Google172.253.139.0/24}
			PTR	`yuiadsk-in-f26.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
MX	`cslets.net`⁽¹⁰⁾
		A	49.212.235.31^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`www3321.sakura.ne.jp`
TXT	`google-site-verification=NYDsYGbIL6jZxFiKwsabvP4mi2AFrASCRCEvSBIkENw`
TXT	`v=spf1 a:www3321.sakura.ne.jp mx ~all`
SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1739955299

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1783170356

MX for

cslets.net

Subdomains

www.cslets.net

Same first word

cslets.net

cslets.co.uk

cslets.com

Similar names

stlsec.org

ecsstl.com

cesstl.com

slstce.com

eclsts.com

tlssec.com

ssltec.com

ssltec.de

lssetc.com

csstel.com

stlsec.com

slstec.de

tslesc.com

tcless.in

scestl.com

tlsesc.com

DNS History

11 records (7 active, 4 former)

●NS01.dnsv.jp2026-02-17 → 2026-07-04 · 3 obs

○ 2018-01-06 07:07:06
● 2026-02-17 08:42:54
● 2026-07-04 13:23:52

●NS02.dnsv.jp2026-02-17 → 2026-07-04 · 3 obs

○ 2018-01-06 07:07:06
● 2026-02-17 08:42:54
● 2026-07-04 13:23:52

●NS03.dnsv.jp2026-02-17 → 2026-07-04 · 3 obs

○ 2018-01-06 07:07:06
● 2026-02-17 08:42:54
● 2026-07-04 13:23:52

●NS04.dnsv.jp2026-02-17 → 2026-07-04 · 3 obs

○ 2018-01-06 07:07:06
● 2026-02-17 08:42:54
● 2026-07-04 13:23:52

○NSmaster.dns.ne.jp2015-08-23 → 2018-01-06 · 4 obs

● 2015-08-23 07:23:56
● 2018-01-06 07:07:06
○ 2026-02-17 08:42:54
○ 2026-07-04 13:23:52

○NSns1.dns.ne.jp2015-08-23 → 2018-01-06 · 4 obs

● 2015-08-23 07:23:56
● 2018-01-06 07:07:06
○ 2026-02-17 08:42:54
○ 2026-07-04 13:23:52

○NSns2.dns.ne.jp2015-08-23 → 2018-01-06 · 4 obs

● 2015-08-23 07:23:56
● 2018-01-06 07:07:06
○ 2026-02-17 08:42:54
○ 2026-07-04 13:23:52

●MXcslets.net2015-08-23 → 2026-07-04 · 2 obs

● 2015-08-23 07:23:56
● 2026-07-04 13:23:52

●MXsmtp.google.com2026-02-17 → 2026-07-04 · 3 obs

○ 2015-08-23 07:23:56
● 2026-02-17 08:42:54
● 2026-07-04 13:23:52

○A49.212.180.1712015-08-23 → 2016-12-24 · 4 obs

● 2015-08-23 07:23:56
● 2016-12-24 10:28:56
○ 2018-01-06 07:07:06
○ 2026-07-04 13:23:52

●A49.212.235.312018-01-06 → 2026-07-04 · 3 obs

○ 2016-12-24 10:28:56
● 2018-01-06 07:07:06
● 2026-07-04 13:23:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	m.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net...	-
cslets.net	01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp	-

✅ Authoritative Response

Server:157.7.32.53

NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cslets.net (unsigned zone)

⏱️ Timing

Total: 1108ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`49.212.235.31`
NS	4	`01.dnsv.jp, 02.dnsv.jp...`
MX	2	`cslets.net (pri: 10), smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=NYDsYGbIL6jZxFi, v=spf1 a:www3321.sakura.ne.jp mx ~all`
SOA	1	`01.dnsv.jp hostmaster.dnsv.jp`

Analysis

Hierarchy

The domain www.cslets.net falls under the parent cslets.net.

Mail Server Role

cslets.net acts as its own mail server.

smtp.google.com is often seen acting as a mail server in combination with cslets.net.

IP Addresses

cslets.net points to a single IP number: 49.212.235.31.

Additional host names — od-s.jp, ivorywolf5.sakura.ne.jp, housuikai.com and two others — share IP numbers with cslets.net.

Name Servers

cslets.net has four authoritative name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

At least some of cslets.net's name servers are shared with other domains, for example tocchan.net, townhousing.co.jp, holanat.com and two more.

Host names with two IP numbers:

01.dnsv.jp has two IP addresses: 157.7.32.53 and 2400:8500:3300::53.

03.dnsv.jp has two IP addresses: 157.7.34.53 and 2400:8500:3000::53.

04.dnsv.jp has two IP addresses: 157.7.35.53 and 2400:8500:3fff::53.

Host names pointing to a single IP address:

02.dnsv.jp directs to 157.7.33.53.

Mail Servers

cslets.net uses two mail servers, cslets.net and smtp.google.com.

cslets.net shares mail servers — at least in part — with other domains, including superanet.com, goledgerworks.info, bce.org.in and two others.

These mail servers are frequently used alongside the mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and aspmx.l.google.com, plus two others.

Host names with 9 IP numbers:

smtp.google.com has IP addresses 142.251.167.26, 142.251.167.27 and 172.253.139.26, plus 6 other.

Host names pointing to a single IP address:

cslets.net directs to 49.212.235.31.